Commit Graph

731 Commits

Author SHA1 Message Date
Ingo Molnar 174cd4b1e5 sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>
Fix up affected files that include this signal functionality via sched.h.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-02 08:42:32 +01:00
Alexey Dobriyan 5b5e0928f7 lib/vsprintf.c: remove %Z support
Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.

Use BUILD_BUG_ON in a couple ATM drivers.

In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement.  Hopefully this patch inspires
someone else to trim vsprintf.c more.

Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Richard Leitner 3ec72a2a1e usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver
This patch adds a driver for configuration of the Microchip USB251xB/xBi
USB 2.0 hub controller series with USB 2.0 upstream connectivity, SMBus
configuration interface and two to four USB 2.0 downstream ports.

Furthermore add myself as a maintainer for this driver.

The datasheet can be found at the manufacturers website, see [1]. All
device-tree exposed configuration features have been tested on a i.MX6
platform with a USB2512B hub.

[1] http://ww1.microchip.com/downloads/en/DeviceDoc/00001692C.pdf

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-14 09:33:49 -08:00
Colin Ian King ef5ec7f08d usb: misc: usbtest: remove redundant check on retval < 0
The check for retval being less than zero is always true since
retval equal to -EPIPE at that point.  Replace the existing
conditional with just return retval.

Detected with CoverityScan, CID#114349 ("Logically dead code")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-14 09:32:25 -08:00
Gustavo A. R. Silva 23f378ad3b drivers: usb-misc: sisusbvga: remove dead code
The condition modex % 16 cannot be true when modex value is equal to 640
The condition du & 0xff cannot be true when du value is equal to 0x1400

Addresses-Coverity-Id: 101163
Addresses-Coverity-Id: 744373
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:43:47 +01:00
Colin Ian King 453785c64e usb: misc: adutux: remove redundant error check on copy_to_user return code
The 2nd check for a non-zero return from copy_to_user is redundant as
it is has already been made a few lines earlier.  This check was made
redundant because of previous fix to the copy_to_user error return
check.

Detected by CoverityScan, CID#114347 ("Logically Dead Code")

Fixes: 1865a9c382 ("USB: adutux: fix misuse of return value of copy_to_user()")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03 10:05:10 +01:00
Linus Torvalds 7c0f6ba682 Replace <asm/uaccess.h> with <linux/uaccess.h> globally
This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
  sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-24 11:46:01 -08:00
Linus Torvalds 5266e70335 TTY/Serial patches for 4.10-rc1
Here's the tty/serial patchset for 4.10-rc1.
 
 It's been a quiet kernel cycle for this subsystem, just a small number
 of changes.  A few new serial drivers, and some cleanups to the old
 vgacon logic, and other minor serial driver changes as well.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWFAwDQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ylcngCgko5+aPLnHENLNIaHhHlfdMbhy+EAn2H8wkzY
 bEf+BG4CJDb6nZWERcUQ
 =STpQ
 -----END PGP SIGNATURE-----

Merge tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the tty/serial patchset for 4.10-rc1.

  It's been a quiet kernel cycle for this subsystem, just a small number
  of changes. A few new serial drivers, and some cleanups to the old
  vgacon logic, and other minor serial driver changes as well.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits)
  serial: 8250_mid fix calltrace when hotplug 8250 serial controller
  console: Move userspace I/O out of console_lock to fix lockdep warning
  tty: nozomi: avoid sprintf buffer overflow
  serial: 8250_pci: Detach low-level driver during PCI error recovery
  serial: core: don't check port twice in a row
  mxs-auart: count FIFO overrun errors
  serial: 8250_dw: Add support for IrDA SIR mode
  serial: 8250: Expose set_ldisc function
  serial: 8250: Add IrDA to UART capabilities
  serial: 8250_dma: power off device after TX is done
  serial: 8250_port: export serial8250_rpm_{get|put}_tx()
  serial: sunsu: Free memory when probe fails
  serial: sunhv: Free memory when remove() is called
  vt: fix Scroll Lock LED trigger name
  tty: typo in comments in drivers/tty/vt/keyboard.c
  tty: amba-pl011: Add earlycon support for SBSA UART
  tty: nozomi: use permission-specific DEVICE_ATTR variants
  tty: serial: Make the STM32 serial port depend on it's arch
  serial: ifx6x60: Free memory when probe fails
  serial: ioc4_serial: Free memory when kzalloc fails during probe
  ...
2016-12-13 11:18:24 -08:00
Kim Jae Joong 651b297c9b usb: misc: rio500: fix result type for error message
Fix variable type for dev_err about usb_bulk_msg()

Signed-off-by: Kim Jae Joong <climbbb.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-12-08 17:50:08 +01:00
Greg Kroah-Hartman ae4d814bf1 usb: patches for v4.10 merge window
One big merge this time with a total of 166 non-merge commits.
 
 Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far
 second (22.5%). The remaining 9.3% are scattered on gadget drivers.
 
 The most important changes for dwc2 are the peripheral side DMA support
 implemented by Synopsys folks and support for the new IOT dwc2
 compatible core from Synopsys.
 
 In dwc3 land we have support for high-bandwidth, high-speed isochronous
 endpoints and some non-critical fixes for large scatter lists.
 
 Apart from these, we have our usual set of cleanups, non-critical fixes,
 etc.
 -----BEGIN PGP SIGNATURE-----
 
 iQJRBAABCAA7FiEElLzh7wn96CXwjh2IzL64meEamQYFAlgu7+gdHGZlbGlwZS5i
 YWxiaUBsaW51eC5pbnRlbC5jb20ACgkQzL64meEamQaDbxAAsgDPAp8QTx8D1d70
 hSGyPZ55rmqlzBNbUUOQyk/AeN5xM3XVbjZNOxWn4c386iaDrngcqOrxjCbBRsje
 b9yMESMiZsTPVlKXE45yXt//NHg1KUfpHON7rybaiFq0uqjUhnQf95DeYPgJVxit
 7F9B+05XcNMyxYRoz6bGkRTU+lcJ6g3/orgKfp4t/hs8WUNXH6+71keMF+IdLYNH
 mcPmJ8MXpfLzv8eweRwV0s/3flxCuFx1ksZ8cW6qHR5vX303X2sGTlinBmhfQapr
 t0a+OBtLpZdNmjw/yB2odc/1jjLNRHpYU5xGqwouMx9Ca2PocFT2xFbmUWR23xp1
 X0rkICRxcLPjZql2Uld5QHO9dPnF/FbX0Njuvxo+2r8ENE5/eG4C/RcYcRDmYPsu
 u8k2rKFs0+yCOAU91rD8mayJVBWBJ4trqZFT0TcocCGsMTk8fTYpF1Iskj9Z4FKz
 yo+lgyCCtp673ykGZ1ezsL6YWOmdrQv/PurKZqrXAmdhi6+mImLI/nAHtAdOZx0X
 zK9MwPnwDxrPiqhrZ46+Bm/EjZI50TM44M1ldmCwKi/6/Nvy54DHMtjPI5/9205R
 bjftW3DkVWAC//29RNcGEHtwiJFPEU/kdoRFOPhKGJ7ocCzFVSTFBgo02kDsC6De
 Wouv2QTFuZN9s17o29YVD3bGJZM=
 =5WN9
 -----END PGP SIGNATURE-----

Merge tag 'usb-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.10 merge window

One big merge this time with a total of 166 non-merge commits.

Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far
second (22.5%). The remaining 9.3% are scattered on gadget drivers.

The most important changes for dwc2 are the peripheral side DMA support
implemented by Synopsys folks and support for the new IOT dwc2
compatible core from Synopsys.

In dwc3 land we have support for high-bandwidth, high-speed isochronous
endpoints and some non-critical fixes for large scatter lists.

Apart from these, we have our usual set of cleanups, non-critical fixes,
etc.
2016-11-18 16:02:15 +01:00
Felipe Balbi efdd17e667 usb: misc: usbtest: remove unnecessary & operation
Now that usb_endpoint_maxp() only returns the lowest
11 bits from wMaxPacketSize, we can remove the &
operation from this driver.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 10:38:27 +02:00
Felipe Balbi 131e19b9e3 usb: misc: usbtest: make use of new usb_endpoint_maxp_mult()
We have introduced a helper to calculate multiplier
value from wMaxPacketSize. Start using it.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2016-11-03 10:38:21 +02:00
Jiri Slaby 35cc56f9a3 tty: vgacon+sisusb, move scrolldelta to a common helper
The code is mirrorred in scrolldelta implementations of both vgacon
and sisusb. Let's move the code to a separate helper where we will
perform a common cleanup and further changes.

While we are moving the code, make it linear and save one indentation
level. This is done by returning from the "!lines" then-branch
immediatelly. This allows flushing the else-branch 1 level to the
left, obviously.

Few more new lines and comments were added too.

And do not forget to export the helper function given sisusb can be
built as module.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: <linux-fbdev@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27 16:37:44 +02:00
Jiri Slaby d705ff3818 tty: vt, cleanup and document con_scroll
Scrolling helpers scrup and scrdown both accept 'top' and 'bottom' as
unsigned int. Number of lines 'nr' is accepted as int, but all callers
pass down unsigned too. So change the type of 'nr' to unsigned too.
Now, promote unsigned int from the helpers up to the con_scroll
hook which actually accepted all those as signed int.

Next, the 'dir' parameter can have only two values and we define
constants for that: SM_UP and SM_DOWN. Switch them to enum and do
proper type checking on 'dir' too.

Finally, document the behaviour of the hook.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: <linux-fbdev@vger.kernel.org>
Cc: <linux-usb@vger.kernel.org>
Cc: <linux-parisc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-27 16:37:43 +02:00
Julien Cristau 6fbbcf3873 hwrng: chaoskey - drop workaround for old hwrng core limitation
The hwrng core used to mask 'quality' with 1023; that has been removed
in commit 506bf0c046 ("hwrng: core - allow
perfect entropy from hardware devices"), so we can now just set quality
to 1024.

Signed-off-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-24 15:17:51 +02:00
Greg Kroah-Hartman 2fae9e5a7b usb: misc: legousbtower: Fix NULL pointer deference
This patch fixes a NULL pointer dereference caused by a race codition in
the probe function of the legousbtower driver. It re-structures the
probe function to only register the interface after successfully reading
the board's firmware ID.

The probe function does not deregister the usb interface after an error
receiving the devices firmware ID. The device file registered
(/dev/usb/legousbtower%d) may be read/written globally before the probe
function returns. When tower_delete is called in the probe function
(after an r/w has been initiated), core dev structures are deleted while
the file operation functions are still running. If the 0 address is
mappable on the machine, this vulnerability can be used to create a
Local Priviege Escalation exploit via a write-what-where condition by
remapping dev->interrupt_out_buffer in tower_write. A forged USB device
and local program execution would be required for LPE. The USB device
would have to delay the control message in tower_probe and accept
the control urb in tower_open whilst guest code initiated a write to the
device file as tower_delete is called from the error in tower_probe.

This bug has existed since 2003. Patch tested by emulated device.

Reported-by: James Patrick-Evans <james@jmp-e.com>
Tested-by: James Patrick-Evans <james@jmp-e.com>
Signed-off-by: James Patrick-Evans <james@jmp-e.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-21 18:31:18 +02:00
Julia Lawall 36ae6776e4 ezusb: constify local structures
For structure types defined in the same file or local header files, find
top-level static structure declarations that have the following
properties:
1. Never reassigned.
2. Address never taken
3. Not passed to a top-level macro call
4. No pointer or array-typed field passed to a function or stored in a
variable.
Declare structures having all of these properties as const.

Done using Coccinelle.
Based on a suggestion by Joe Perches <joe@perches.com>.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-13 17:24:24 +02:00
Wolfram Sang 0c2bc5c2cb usb: misc: yurex: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang c9220ba512 usb: misc: uss720: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang bcf0848dcb usb: misc: usbsevseg: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang a1841732e0 usb: misc: usblcd: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 58e61402c7 usb: misc: trancevibrator: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 5c47fd6166 usb: misc: lvstest: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 49d8ffab82 usb: misc: legousbtower: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 6714ffae75 usb: misc: ldusb: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 3cfb4842fb usb: misc: iowarrior: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 081e303e49 usb: misc: idmouse: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 524fd35357 usb: misc: ftdi-elan: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang 29a99df17b usb: misc: cytherm: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:38 +02:00
Wolfram Sang e83c06e99d usb: misc: cypress_cy7c63: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:37 +02:00
Wolfram Sang d7f040e92f usb: misc: appledisplay: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:37 +02:00
Wolfram Sang a02b55c8db usb: misc: adutux: don't print on ENOMEM
All kmalloc-based functions print enough information on failures.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:17:37 +02:00
Greg Kroah-Hartman 1aaaa9acae Merge 4.8-rc3 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-21 21:33:17 -04:00
Wolfram Sang 0450ba4069 usb: misc: yurex: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:27 +02:00
Wolfram Sang 39acc8a843 usb: misc: uss720: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:27 +02:00
Wolfram Sang 843ac1975d usb: misc: sisusbvga: sisusb: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:27 +02:00
Wolfram Sang da4e20ffce usb: misc: lvstest: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:27 +02:00
Wolfram Sang a131f41f5b usb: misc: legousbtower: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Wolfram Sang 2d40390337 usb: misc: ldusb: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Wolfram Sang 5656bbb772 usb: misc: iowarrior: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Wolfram Sang d3ec72b0c1 usb: misc: ftdi-elan: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Wolfram Sang c6b1caaf2a usb: misc: appledisplay: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Wolfram Sang 71574a558d usb: misc: adutux: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-15 15:54:26 +02:00
Lu Baolu 5395875118 usb: misc: usbtest: add fix for driver hang
In sg_timeout(), req->status is set to "-ETIMEDOUT" before calling
into usb_sg_cancel(). usb_sg_cancel() will do nothing and return
directly if req->status has been set to a non-zero value. This will
cause driver hang whenever transfer time out is triggered.

This patch fixes this issue. It could be backported to stable kernel
with version later than v3.15.

Cc: stable@vger.kernel.org # 3.15+
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-11 18:31:51 +02:00
Bhaktipriya Shridhar c936f45fc2 usb: ftdi-elan: Remove deprecated create_singlethread_workqueue
The status workqueue is involved in initializing the Uxxx and polling
the Uxxx until a supported PCMCIA CardBus device is detected.
It then starts the command and respond workqueues and then loads the
module that handles the device, after which it just polls the Uxxx
looking for card ejects.

The command and respond workqueues are involved in implementing a command
sequencer for communicating with the firmware on the other side of
the FTDI chip in the Uxxx.

These workqueues have only a single work item each and hence they do not
require ordering. Also, none of the above workqueues are being used on a
memory recliam path. Hence, the singlethreaded workqueues have been
replaced with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

The work items have been sync cancelled because they are self-requeueing
and need to wait for the in-flight work item to finish before proceeding
with destruction. Hence, they have been sync cancelled in
ftdi_status_cancel_work(), ftdi_command_cancel_work() and
ftdi_response_cancel_work(). These functions are called in
ftdi_elan_exit() to ensure that there are no pending work items while
disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:49:01 +02:00
Bhaktipriya Shridhar 6a0bb4348b USB: appledisplay: Remove deprecated create_singlethread_workqueue
The workqueue "wq" is involved in controlling the brightness of an
Apple Cinema Display over USB.

It has a single work item(&pdata->work) per appledisplay and hence
doesn't require ordering. Also, it is not being used on a memory
reclaim path.

Hence, the singlethreaded workqueue has been replaced with the use of
system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

The work item is self-requeueing and needs to wait for the in-flight
work item to finish before proceeding with destruction.
Hence, it has been sync cancelled in appledisplay_disconnect().
This also ensures that there are no pending tasks while disconnecting
the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:49:01 +02:00
Bhaktipriya Shridhar bd783108ac usb: lvstest: Remove deprecated create_singlethread_workqueue
The workqueue has a single work item(&lvs->rh_work) and hence
doesn't require ordering. Also, it is not being used on a memory
reclaim path. Hence, the singlethreaded workqueue has been replaced
with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

The work item has been flushed in lvs_rh_disconnect() to ensure that
there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:49:01 +02:00
Stephen Boyd 740a6a1720 usb: misc: Add driver for usb4604
This is a minimal driver to support bringing a usb4604 device
from microchip out of reset and into hub mode. The usb4604 device
is related to the usb3503 device, but it didn't seem close enough
to warrant putting both into the same file. This patch borrows
some of the usb3503 structure and trims it down to just handle
the optional reset gpio and adds the i2c command to put the
device into hub mode.

Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/00001716A.pdf
Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:49:01 +02:00
Xiao Han 9c6256a5e7 usb: misc: ftdi-elan: Fix off-by-one memory corruptions
This patch fixes fives off-by-one bugs in the ftdi-elan driver code. The
bug can be triggered by plugging a USB adapter for CardBus 3G cards (model
U132 manufactured by Elan Digital Systems, Ltd), causing a kernel panic.
The fix was tested on Ubuntu 14.04.4 with 4.7.0-rc14.2.0-27-generic+ and
4.4.0-22-generic+ kernel. In the ftdi_elan_synchronize function, an
off-by-one memory corruption occurs when packet_bytes is equal or bigger
than m. After having read m bytes, that is bytes_read is equal to m, "
..\x00" is still copied to the stack variable causing an out bounds write
of 4 bytes, which overwrites the stack canary and results in a kernel
panic.

This off-by-one requires physical access to the machine. It is not
exploitable since we have no control on the overwritten data.  Similar
off-by-one bugs have been observed in 4 other functions:
ftdi_elan_stuck_waiting, ftdi_elan_read, ftdi_elan_edset_output and
ftdi_elan_flush_input_fifo.

Reported-by: Alex Palesandro <palexster@gmail.com>
Signed-off-by: Xiao Han <xiao.han@orange.fr>
Tested-by: Paul Chaignon <pchaigno@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:45:59 +02:00
Peter Chen 28324936f3 usb: misc: usbtest: usbtest_do_ioctl may return positive integer
For case 14 and case 21, their correct return value is the number
of bytes transferred, so it is a positive integer. But in usbtest_ioctl,
it takes non-zero as false return value for usbtest_do_ioctl, so
it will treat the correct test as wrong test, then the time on
tests will be the minus value.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Cc: stable <stable@vger.kernel.org>
Fixes: 18fc4ebdc7 ("usb: misc: usbtest: Remove timeval usage")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-09 15:45:59 +02:00
Linus Torvalds 884316deb4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:

 - new hid-alps driver for ALPS Touchpad-Stick device, from Masaki Ota

 - much improved and generalized HID led handling, and merge of
   specialized hid-thingm driver into this generic hid-led one, from
   Heiner Kallweit

 - i2c-hid power management improvements from Fu Zhonghui and Guohua
   Zhong

 - uhid initialization race fix from Roderick Colenbrander

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (21 commits)
  HID: add usb device id for Apple Magic Keyboard
  HID: hid-led: fix Delcom support on big endian systems
  HID: hid-led: add support for Greynut Luxafor
  HID: hid-led: add support for Delcom Visual Signal Indicator G2
  HID: hid-led: remove report id from struct hidled_config
  HID: alps: a few cleanups
  HID: remove ThingM blink(1) driver
  HID: hid-led: add support for ThingM blink(1)
  HID: hid-led: add support for reading from LED devices
  HID: hid-led: add support for devices with multiple independent LEDs
  HID: i2c-hid: set power sleep before shutdown
  HID: alps: match alps devices in core
  HID: thingm: simplify debug output code
  HID: alps: pass correct sizes to hid_hw_raw_request()
  HID: alps: struct u1_dev *priv is internal to the driver
  HID: add Alps I2C HID Touchpad-Stick support
  HID: led: fix config
  usb: misc: remove outdated USB LED driver
  HID: migrate USB LED driver from usb misc to hid
  HID: i2c_hid: enable i2c-hid devices to suspend/resume asynchronously
  ...
2016-07-28 14:30:16 -07:00
Jiri Kosina 8c2f421c1f Merge branch 'for-4.8/hid-led' into for-linus
Conflicts:
	drivers/hid/hid-thingm.c
2016-07-28 10:49:23 +02:00
Linus Torvalds bbce2ad2d7 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 4.8:

  API:
   - first part of skcipher low-level conversions
   - add KPP (Key-agreement Protocol Primitives) interface.

  Algorithms:
   - fix IPsec/cryptd reordering issues that affects aesni
   - RSA no longer does explicit leading zero removal
   - add SHA3
   - add DH
   - add ECDH
   - improve DRBG performance by not doing CTR by hand

  Drivers:
   - add x86 AVX2 multibuffer SHA256/512
   - add POWER8 optimised crc32c
   - add xts support to vmx
   - add DH support to qat
   - add RSA support to caam
   - add Layerscape support to caam
   - add SEC1 AEAD support to talitos
   - improve performance by chaining requests in marvell/cesa
   - add support for Araneus Alea I USB RNG
   - add support for Broadcom BCM5301 RNG
   - add support for Amlogic Meson RNG
   - add support Broadcom NSP SoC RNG"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (180 commits)
  crypto: vmx - Fix aes_p8_xts_decrypt build failure
  crypto: vmx - Ignore generated files
  crypto: vmx - Adding support for XTS
  crypto: vmx - Adding asm subroutines for XTS
  crypto: skcipher - add comment for skcipher_alg->base
  crypto: testmgr - Print akcipher algorithm name
  crypto: marvell - Fix wrong flag used for GFP in mv_cesa_dma_add_iv_op
  crypto: nx - off by one bug in nx_of_update_msc()
  crypto: rsa-pkcs1pad - fix rsa-pkcs1pad request struct
  crypto: scatterwalk - Inline start/map/done
  crypto: scatterwalk - Remove unnecessary BUG in scatterwalk_start
  crypto: scatterwalk - Remove unnecessary advance in scatterwalk_pagedone
  crypto: scatterwalk - Fix test in scatterwalk_done
  crypto: api - Optimise away crypto_yield when hard preemption is on
  crypto: scatterwalk - add no-copy support to copychunks
  crypto: scatterwalk - Remove scatterwalk_bytes_sglen
  crypto: omap - Stop using crypto scatterwalk_bytes_sglen
  crypto: skcipher - Remove top-level givcipher interface
  crypto: user - Remove crypto_lookup_skcipher call
  crypto: cts - Convert to skcipher
  ...
2016-07-26 13:40:17 -07:00
Linus Torvalds b7545b79a1 USB update for 4.8-rc1
Here's the big USB driver update for 4.8-rc1.  Lots of the normal stuff
 in here, musb, gadget, xhci, and other updates and fixes.  All of the
 details are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iFYEABECABYFAleVPioPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspB5AAnj7a
 VJ2t2kcWzFUNQ6dyJrJCGGRAAKDZmb5CnOGeqJmdVpDzN1CGLYjfiw==
 =47iA
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB driver update for 4.8-rc1.  Lots of the normal
  stuff in here, musb, gadget, xhci, and other updates and fixes.  All
  of the details are in the shortlog.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (169 commits)
  cdc-acm: beautify probe()
  cdc-wdm: use the common CDC parser
  cdc-acm: cleanup error handling
  cdc-acm: use the common parser
  usbnet: move the CDC parser into USB core
  usb: musb: sunxi: Simplify dr_mode handling
  usb: musb: sunxi: make unexported symbols static
  usb: musb: cppi41: add dma channel tracepoints
  usb: musb: cppi41: move struct cppi41_dma_channel to header
  usb: musb: cleanup cppi_dma header
  usb: musb: gadget: add usb-request tracepoints
  usb: musb: host: add urb tracepoints
  usb: musb: add tracepoints to dump interrupt events
  usb: musb: add tracepoints for register access
  usb: musb: dsps: use musb register read/write wrappers instead
  usb: musb: switch dev_dbg to tracepoints
  usb: musb: add tracepoints support for debugging
  usb: quirks: Add no-lpm quirk for Elan
  phy: rcar-gen3-usb2: fix mutex_lock calling in interrupt
  phy: rockhip-usb: use devm_add_action_or_reset()
  ...
2016-07-24 17:22:18 -07:00
Jiri Slaby 6ca8dfd781 tty: vt, convert more macros to functions
Namely convert:
* IS_FG -> con_is_fg
* DO_UPDATE -> con_should_update
* CON_IS_VISIBLE -> con_is_visible

DO_UPDATE was a weird name for a yes/no answer, so the new name is
con_should_update.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-25 09:04:48 -07:00
Jiri Slaby 52ad1f38b4 tty: vt, remove consw->con_bmove
It is never called since commit 81732c3b2f (tty vt: Fix line
garbage in virtual console on command line edition) in 3.7. So remove
all the callbacks.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-25 09:04:48 -07:00
Jiri Slaby 709280da62 tty: vt, consw->con_set_palette cleanup
* allow NULL consw->con_set_palette (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_set_palette is never checked => make the
  function void
* document consw->con_set_palette a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-25 09:04:48 -07:00
Jiri Slaby 97293de977 tty: vt, consw->con_scrolldelta cleanup
* allow NULL consw->con_scrolldelta (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_scrolldelta is never checked => make the
  function void
* document consw->con_scrolldelta a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-25 09:04:48 -07:00
Jiri Slaby 3cc5be7739 sisusb: remove dummy variables
bytes_written parameter of sisusb_copy_memory and sisusb_read_memory
is an out parameter, but its value is never used. So remove it and
pass a dummy variable down to sisusb_read_mem_bulk.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-25 09:04:48 -07:00
Heiner Kallweit a335aaf312 usb: misc: remove outdated USB LED driver
The USB LED driver exposes a undocumented sysfs interface and doesn't
use the standard kernel LED subsystem. It supports three devices:

Delcom Visual Signal Indicator
The driver supports generation 1 of the device only which was
manufactured until 2008. Remove support for this device completely.

Riso Kagaku RGB LED + Dream Cheeky Webmail Notifier
These devices are HID compliant and are supported by a new USB LED
driver under drivers/hid utilizing the kernel LED subsystem.

So let's remove the old USB LED driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-06-17 22:28:33 +02:00
Krzysztof Kozlowski 62c32e4641 usb: misc: usb3503: Clean up on driver unbind
The driver should clean up after itself by unpreparing the clock when it
is unbound.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 22:19:59 -07:00
Krzysztof Kozlowski 495660cb53 usb: misc: usb3503: Set platform data
Driver supports two paths of device instantiation: as platform and i2c
device. In the platform path it lacks of storing the driver specific
structure as drvdata.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-06-07 22:19:59 -07:00
Bob Ham e4a886e811 hwrng: chaoskey - Fix URB warning due to timeout on Alea
The first read on an Alea takes about 1.8 seconds, more than the
timeout value waiting for the read.  As a consequence, later URB reuse
causes the warning given below.  To avoid this, we increase the wait
time for the first read on the Alea.

[   78.293247] WARNING: CPU: 3 PID: 1892 at drivers/usb/core/urb.c:338 usb_submit_urb+0x2b4/0x580 [usbcore]
[   78.293250] URB ffff8802135be3c0 submitted while active
[   78.293252] Modules linked in: chaoskey(+) rng_core rfcomm binfmt_misc bnep cfg80211 nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc bridge stp llc tun snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support nls_utf8 nls_cp437 vfat fat intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel efi_pstore kvm irqbypass pcspkr btusb btrtl btbcm btintel uvcvideo joydev bluetooth videobuf2_vmalloc videobuf2_memops efivars videobuf2_v4l2 serio_raw i2c_i801 videobuf2_core videodev cdc_mbim media lpc_ich shpchp mfd_core cdc_ncm usbnet mii cdc_wdm cdc_acm evdev snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core i915 snd_pcm snd_timer i2c_algo_bit drm_kms_helper wmi thinkpad_acpi drm nvram mei_me mei snd soundcore rfkill ac battery i2c_core
[   78.293335]  video button tpm_tis tpm fuse parport_pc ppdev lp parport autofs4 ext4 crc16 jbd2 mbcache algif_skcipher af_alg hid_generic usbhid hid dm_crypt dm_mod sg sr_mod cdrom sd_mod crct10dif_pclmul crc32_pclmul crc32c_intel jitterentropy_rng sha256_generic hmac drbg aesni_intel xhci_pci aes_x86_64 ahci glue_helper xhci_hcd ehci_pci lrw libahci gf128mul ablk_helper cryptd libata sdhci_pci psmouse sdhci scsi_mod ehci_hcd mmc_core usbcore usb_common thermal
[   78.293402] CPU: 3 PID: 1892 Comm: hwrng Not tainted 4.7.0-rc1-linux-14+ #16
[   78.293405] Hardware name: LENOVO 232577G/232577G, BIOS G2ET92WW (2.52 ) 02/22/2013
[   78.293408]  0000000000000000 ffffffff812dfa0f ffff8801fa5b3d68 0000000000000000
[   78.293413]  ffffffff81072224 ffff8802135be3c0 ffff8801fa5b3db8 ffff880212e44210
[   78.293418]  0000000000000040 ffff880209fb32c0 ffff880212e44200 ffffffff8107228f
[   78.293422] Call Trace:
[   78.293432]  [<ffffffff812dfa0f>] ? dump_stack+0x5c/0x7d
[   78.293437]  [<ffffffff81072224>] ? __warn+0xc4/0xe0
[   78.293441]  [<ffffffff8107228f>] ? warn_slowpath_fmt+0x4f/0x60
[   78.293451]  [<ffffffff810a46a2>] ? enqueue_task_fair+0xcd2/0x1260
[   78.293463]  [<ffffffffa001ec54>] ? usb_submit_urb+0x2b4/0x580 [usbcore]
[   78.293474]  [<ffffffff8140c2e5>] ? __pm_runtime_resume+0x55/0x70
[   78.293484]  [<ffffffffa0825212>] ? _chaoskey_fill+0x132/0x250 [chaoskey]
[   78.293485] usbcore: registered new interface driver chaoskey
[   78.293493]  [<ffffffff810aed50>] ? wait_woken+0x90/0x90
[   78.293500]  [<ffffffffa06448c0>] ? devm_hwrng_register+0x80/0x80 [rng_core]
[   78.293505]  [<ffffffffa0825907>] ? chaoskey_rng_read+0x127/0x140 [chaoskey]
[   78.293511]  [<ffffffffa06448c0>] ? devm_hwrng_register+0x80/0x80 [rng_core]
[   78.293515]  [<ffffffffa064492e>] ? hwrng_fillfn+0x6e/0x120 [rng_core]
[   78.293520]  [<ffffffff8108fb5f>] ? kthread+0xcf/0xf0
[   78.293529]  [<ffffffff81596d5f>] ? ret_from_fork+0x1f/0x40
[   78.293535]  [<ffffffff8108fa90>] ? kthread_park+0x50/0x50

Signed-off-by: Bob Ham <bob.ham@collabora.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-07 18:42:44 +08:00
Bob Ham d3ede2dba3 hwrng: chaoskey - Add support for Araneus Alea I USB RNG
Adds support for the Araneus Alea I USB hardware Random Number
Generator which is interfaced with in exactly the same way as the
Altus Metrum ChaosKey.  We just add the appropriate device ID and
modify the config help text.

Signed-off-by: Bob Ham <bob.ham@collabora.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-07 18:42:43 +08:00
Linus Torvalds 19e36ad292 USB patches for 4.7-rc1
Here's the big pull request for USB and PHY drivers for 4.7-rc1
 
 Full details in the shortlog, but it's the normal major gadget driver
 updates, phy updates, new usbip code, as well as a bit of lots of other
 stuff.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlc/0P8ACgkQMUfUDdst+ykkFQCg0kJlxIiCU1FYBZYriqo4vX3F
 9N8AoM/8nO8Y6vMpF2LWnamafYgqscTE
 =ZuCh
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big pull request for USB and PHY drivers for 4.7-rc1

  Full details in the shortlog, but it's the normal major gadget driver
  updates, phy updates, new usbip code, as well as a bit of lots of
  other stuff.

  All have been in linux-next with no reported issues"

* tag 'usb-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (164 commits)
  USB: serial: ti_usb_3410_5052: add MOXA UPORT 11x0 support
  USB: serial: fix minor-number allocation
  USB: serial: quatech2: fix use-after-free in probe error path
  USB: serial: mxuport: fix use-after-free in probe error path
  USB: serial: keyspan: fix debug and error messages
  USB: serial: keyspan: fix URB unlink
  USB: serial: keyspan: fix use-after-free in probe error path
  USB: serial: io_edgeport: fix memory leaks in probe error path
  USB: serial: io_edgeport: fix memory leaks in attach error path
  usb: Remove unnecessary space before operator ','.
  usb: Remove unnecessary space before open square bracket.
  USB: FHCI: avoid redundant condition
  usb: host: xhci-rcar: Avoid long wait in xhci_reset()
  usb/host/fotg210: remove dead code in create_sysfs_files
  usb: wusbcore: Do not initialise statics to 0.
  usb: wusbcore: Remove space before ',' and '(' .
  USB: serial: cp210x: clean up CRTSCTS flag code
  USB: serial: cp210x: get rid of magic numbers in CRTSCTS flag code
  USB: serial: cp210x: fix hardware flow-control disable
  USB: serial: option: add even more ZTE device ids
  ...
2016-05-20 21:12:25 -07:00
Oliver Neukum 88a0044e6c sisusbvga: correct speed testing
Allow for SS+

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-03 14:32:07 -07:00
Mathias Nyman cdc77c82a8 usb: misc: usbtest: fix pattern tests for scatterlists.
The current implemenentation restart the sent pattern for each entry in
the sg list. The receiving end expects a continuous pattern, and test
will fail unless scatterilst entries happen to be aligned with the
pattern

Fix this by calculating the pattern byte based on total sent size
instead of just the current sg entry.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Fixes: 8b52490193 ("[PATCH] USB: usbtest: scatterlist OUT data pattern testing")
Cc: <stable@vger.kernel.org> # v2.6.18+
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-03 14:32:07 -07:00
Jiri Slaby 8ede5cce4f tty: vt, make color_table const
This means all ->con_set_palette have to have the second parameter
const too now.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-30 09:26:55 -07:00
Heikki Krogerus 0c1849a8c7 usb: Add driver for UCSI
USB Type-C Connector System Software Interface (UCSI) is
specification that defines the registers and data structures
that can be used to control USB Type-C ports on a system.
UCSI is used on several Intel Broxton SoC based platforms.
Things that UCSI can be used to control include at least USB
Data Role swapping, Power Role swapping and controlling of
Alternate Modes on top of providing general details about
the port and the partners that are attached to it.

The initial purpose of the UCSI driver is to make sure USB
is in host mode on desktop and server systems that are USB
dual role capable, and provide UCSI interface.

The goal is to integrate the driver later to an USB Type-C
framework for Linux kernel, and at the same time add support
for more extensive USB Type-C port control that UCSI offers,
for example data role swapping, power role swapping,
Alternate Mode control etc.

The UCSI specification is public can be obtained from here:
http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-29 15:29:18 -07:00
Chunfeng Yun 26186e5f2c usb: misc: usbtest: fix error of urb allocation
urb allocation will fail when usbtest_alloc_urb() tries to
allocate zero length buffer, but it doesn't need it in fact,
so just skips buffer allocation in the case.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-28 12:35:36 -07:00
Josh Boyer 4ec0ef3a82 USB: iowarrior: fix oops with malicious USB descriptors
The iowarrior driver expects at least one valid endpoint.  If given
malicious descriptors that specify 0 for the number of endpoints,
it will crash in the probe function.  Ensure there is at least
one endpoint on the interface before using it.

The full report of this issue can be found here:
http://seclists.org/bugtraq/2016/Mar/87

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-18 09:19:02 -07:00
Junjie Mao 0b41d35058 USB: idmouse.c: Put the interface on error
usb_autopm_put_interface() should be called regardless of what
idmouse_create_image() returns.

Signed-off-by: Junjie Mao <junjie.mao@enight.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03 19:44:06 -08:00
Oliver Neukum 0ca10122ca usb/misc/chaoskey: introduce an URB for asynchronous reads
To allow for and clean handling of signals an URB is introduced.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:12:21 -08:00
Oliver Neukum 0a15e24c27 usb/misc/chaoskey: Cleanup probe failure paths
Shares the cleanup code between all probe failure paths, instead of
having per-failure cleanup at each point in the function.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 20:12:21 -08:00
Greg Kroah-Hartman 5b93fe3143 Revert "usb: add HAS_IOMEM dependency to USB_APPLEDISPLAY"
This reverts commit 4b61b4f205.

As reported by Oliver, this change was unnecessary.

Reported-by: Oliver Neukum <oneukum@suse.com>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 14:21:41 -08:00
Vegard Nossum 4b61b4f205 usb: add HAS_IOMEM dependency to USB_APPLEDISPLAY
warning: (USB_APPLEDISPLAY) selects BACKLIGHT_LCD_SUPPORT which has unmet direct dependencies (HAS_IOMEM)

Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 17:09:56 -08:00
Peter Senna Tschudin 0e781c2258 usb-misc: sisusbvga: fix error path
Remove a call to dev_err() that was reporting an unsuccesful call to
kmalloc(), as reporting memory allocation failures is redundant. Instead
of logging the error, clean up previously allocated resources and abort
the probe with -ENOMEM. Before this change sisusb->SiS_Pr could be
dereferenced even if null after failure of memory allocation.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin f40849b868 usb-misc: sisusbvga: Remove memory allocation logs
This patch remove three calls to dev_err() from sisusb_probe() as
reporting memory allocation failures is redundant:

 - Remove a call to dev_err() that was reporting unsuccesful call to
   kzalloc().

 - Remove two calls to dev_err() that were reporting unsuccesful calls
   to kmalloc().

One call to dev_err() reporting memory allocation is left unchanged as
the last patch of the series removes it.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin 8a102fd6c9 usb-misc: sisusbvga: Remove null test before calls to kfree()
This patch removes null test before calls to kfree() as kfree() can
handle null pointers safely.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin 662bfe7b53 usb-misc: sisusbvga: Fix coding style: remove assignment from if tests
The file drivers/usb/misc/sisusbvga/sisusb.c had 6 assignments inside if
tests. This patch move the assignment outside the test. The changes
also fix the remaining 2 lines that were over 80 characters.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin f996c49d4f usb-misc: sisusbvga: Fix coding style: braces, parenthesis, comment
The file drivers/usb/misc/sisusbvga/sisusb.c contained coding style
issues reported by checkpatch. This patch fixes the following
errors:
 - 12 WARNING: braces {} are not necessary for single statement blocks
 - 04 ERROR: return is not a function, parentheses are not required
 - 03 ERROR: do not initialise statics to 0
 - 1 WARNING: else is not generally useful after a break or return
 - 1 WARNING: braces {} are not necessary for any arm of this statement
 - 1 WARNING: Block comments use * on subsequent lines

One case in which braces are not necessary is left unchanged as other
patch of the series will fix it.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin 06e21efa2d usb-misc: sisusbvga: Fix coding style: vertical whitespace changes
This patch fixes whitespace coding style issues that can't be fixed
without adding newlines. This patch fixes the following checkpatch
warnings:
 - 20 ERROR: trailing statements should be on next line
 - 15 WARNING: line over 80 characters
 - 03 WARNING: Missing a blank line after declarations
 - 01 ERROR: space required after that ','

Five lines over 80 characters are left. The first three wont change as
the fix would require split the cast and variable name in different
lines which makes the code less readable. The last two will be fixed by
other patch in the series.

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Peter Senna Tschudin f74a039c7e usb-misc: sisusbvga: Fix coding style: horizontal whitespace changes
This patch fixes whitespace coding style issues that can be fixed
within a single line. This patch fixes the following checkpatch
warnings:
 - 83 ERROR: space required after that ','
 - 13 ERROR: switch and case should be at the same indent
 - 08 WARNING: please, no spaces at the start of a line
 - 03 ERROR: space required before the open parenthesis '('
 - 04 WARNING: suspect code indent for conditional statements
 - 01 WARNING: space prohibited between function name and open parenthesis
 - 01 ERROR: spaces required around that '='
 - 01 ERROR: code indent should use tabs where possible

Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-24 21:04:54 -08:00
Linus Torvalds 237f38c3b3 USB patches for 4.5-rc1
Here is the big USB drivers update for 4.5-rc1.  Lots of gadget driver
 updates and fixes, like usual, and a mix of other USB driver updates as
 well.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlaV2rUACgkQMUfUDdst+ym2XQCgqdDOlyGX5B//9CZ2kH1DrDW9
 qLsAoLSBvw4hk+Aotv6tn8AayMpHwqV1
 =pFLC
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB drivers update for 4.5-rc1.

  Lots of gadget driver updates and fixes, like usual, and a mix of
  other USB driver updates as well.  Full details in the shortlog.  All
  of these have been in linux-next for a while"

* tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (191 commits)
  MAINTAINERS: change my email address
  USB: usbmon: remove assignment from IS_ERR argument
  USB: mxu11x0: drop redundant function name from error messages
  USB: mxu11x0: fix debug-message typos
  USB: mxu11x0: rename usb-serial driver
  USB: mxu11x0: fix modem-control handling on B0-transitions
  USB: mxu11x0: fix memory leak on firmware download
  USB: mxu11x0: fix memory leak in port-probe error path
  USB: serial: add Moxa UPORT 11x0 driver
  USB: cp210x: add ID for ELV Marble Sound Board 1
  usb: chipidea: otg: use usb autosuspend to suspend bus for HNP
  usb: chipidea: host: set host to be null after hcd is freed
  usb: chipidea: removing of_find_property
  usb: chipidea: implement platform shutdown callback
  usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
  usb: chipidea: delete static debug support
  usb: chipidea: support debugfs without CONFIG_USB_CHIPIDEA_DEBUG
  usb: chipidea: udc: improve error handling on _hardware_enqueue
  usb: chipidea: udc: _ep_queue and _hw_queue cleanup
  usb: dwc3: of-simple: fix build warning on !PM
  ...
2016-01-13 09:26:40 -08:00
Al Viro b25472f9b9 new helpers: no_seek_end_llseek{,_size}()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-23 10:41:31 -05:00
Deepa Dinamani 18fc4ebdc7 usb: misc: usbtest: Remove timeval usage
timeval is deprecated and not y2038 safe.  Its size also changes according
to 32 bit/ 64 bit compilation.  Replace it with 32 and 64 bit versions of
its individual fields, giving two ioctls with different code values.
The two ioctls are necessary to maintain the 32 bit and 64 bit userspace
compatibility with a 64/32 bit kernel.

Change unsigned to __u32 types for a definitive userspace interface.
This is in accordance with the psABI that the unsigned type is always
32 bits.

Also use motonic timer instead of real time to ensure positive delta
values.

Refactor usbtest_ioctl for readability to isolate the handling of the
testing timing measurement.

The official testusb userspace tool can be changed in a separate patch
to reflect the __u32 changes as well. It can use the usbtest_param_32
struct, since 32 bit seconds is long enough for test durations.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-01 14:52:58 -08:00
Peter Chen c7c7806700 usb: misc: usbtest: improve the description for error message
Now the function of complicated_callback is not only used for iso
transfer, improve the error message to reflect it.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-01 14:36:29 -08:00
Andrew F. Davis aa5b477db5 usb: misc: usb3503: Use i2c_add_driver helper macro
Use i2c_add_driver as it will add THIS_MODULE for us.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-24 19:53:53 -07:00
Greg Kroah-Hartman a4d8e93c31 usb: patches for v4.4 merge window
This pull request is large with a total of 136 non-merge
 commits. Because of its size, we will only describe the big things in
 broad terms.
 
 Many will be happy to know that dwc3 is now almost twice as fast after
 some profiling and speed improvements. Also in dwc3, John Youn from
 Synopsys added support for their new DWC USB3.1 IP Core and the HAPS
 platform which can be used to validate it.
 
 A series of patches from Robert Baldyga cleaned up uses of
 ep->driver_data as a flag for "claimed endpoint" in favor of the new
 ep->claimed flag.
 
 Sudip Mukherjee fixed a ton of really old problems on the amd5536udc
 driver. That should make a few people happy.
 
 Heikki Krogerus worked on converting dwc3 to the unified device property
 interface.
 
 Together with these, there's a ton of non-critical fixes, typos and
 stuff like that.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWJoq5AAoJEIaOsuA1yqREOlkQAJTndRGxhcZR5rLzjyRDDags
 pYoXJAqaneq5G8BwKY+2AQlPaUr87UEHUOo8pk4S31mdFHlp/d/6YIXLpdlYbEcW
 ixGhtxZnUhyvWM0HYGgyoDGQP9YJXy5/MR2lEJhmsqcH/Q0dih5VrDGyJ3BxEboZ
 2jXy7iou5fs5nHsR4fpdUH+ER//oKgHopRbbt+mmCwZbRJbuukA0KVDMHO8ix6cy
 tG/8zbnv5RY3O4a0lJAST8LNmtpxfF9yUCs83b6muhLgO9GXUGYb+I8DjPJMbwag
 klOy8Z1bG5e4ymh6383ZG7wDITf82N5cy5huoyunQHVjYg1L8vDHa9aF72e+yR/3
 blb9OYALbKPV072HMwOfH+M9cvcCVDGytbJQIgMot9mjpP6GPhgbGtxb+RWNy2j8
 Z2kEaxd3BUXvWiRbvyvn7uQuT/cAF4StrTnQrsbFSt0fKAUkQnGdK7XxYfGGql97
 p3u2x2D7YSkurywMWyXjuBsm/mXsImAfTJvoWndyOIHU2PNAzIDM4k9TWaYNNAKA
 ilZSuSC/JVnMPEH/J/QpytxMM5wbiGyJOyI4bc4MiAXgCkG3qm8vi0PMZM8x0rEu
 q778B+50alg9U7/G75dt0WQP+kqDjn+iUB7i/YUC9sq/Dhlmpp48KvJU+zaco+7I
 QsxGXmlgeA7yXX8ywy71
 =jPoY
 -----END PGP SIGNATURE-----

Merge tag 'usb-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.4 merge window

This pull request is large with a total of 136 non-merge
commits. Because of its size, we will only describe the big things in
broad terms.

Many will be happy to know that dwc3 is now almost twice as fast after
some profiling and speed improvements. Also in dwc3, John Youn from
Synopsys added support for their new DWC USB3.1 IP Core and the HAPS
platform which can be used to validate it.

A series of patches from Robert Baldyga cleaned up uses of
ep->driver_data as a flag for "claimed endpoint" in favor of the new
ep->claimed flag.

Sudip Mukherjee fixed a ton of really old problems on the amd5536udc
driver. That should make a few people happy.

Heikki Krogerus worked on converting dwc3 to the unified device property
interface.

Together with these, there's a ton of non-critical fixes, typos and
stuff like that.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-10-22 17:19:33 -07:00
Peter Chen 145f48c518 usb: misc: usbtest: add bulk queue test
The bulk queue tests are used to show 'best performance' for bulk
transfer, we are often asked this question by users. The implementation
is the same with iso test, that is queue request at interrupt completion,
so we reuse the iso structures, and rename them as common one.

It's result should be very close to IC simulation, in order
to get that, the device side should also need to prepare enough
queue.

We have got the 'best performance' (IN: 41MB, OUT: 39MB) at i.mx platform
(USB2, ARM Cortex A9, stream mode need to enable) with below command:

Host side:
modprobe usbtest
./testusb -a -t 27 -g 64 -s 16384
./testusb -a -t 28 -g 64 -s 16384
Gadget side:
modprobe g_zero loopdefault=1 qlen=64 buflen=16384

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-10-13 13:19:49 -05:00
Alexander Inyukhin 1d5c47f555 USB: chaoskey read offset bug
Rng reads in chaoskey driver could return the same data under
the certain conditions.

Signed-off-by: Alexander Inyukhin <shurick@sectorb.msk.ru>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 11:01:13 +01:00
Alan Stern b9a6e8e100 usb: misc: usbtest: format the data pattern according to max packet size
With this change, the host and gadget doesn't need to agree with transfer
length for comparing the data, since they doesn't know each other's
transfer size, but know max packet size.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
(Fixed the 'line over 80 characters warning' by Peter Chen)
Tested-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Peter Chen 169900f967 usb: misc: usbtest: using the same data format among write/compare/output
Using the same data format "buf[j] = (u8)(i + j)" among
write, compare buf, and console output stage.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Peter Chen a724ddfb17 usb: misc: usbtest: delete useless memset for urbs array
The element of urbs array will be initialized at below code
at once.

	for (i = 0; i < param->sglen; i++) {
		urbs[i] = iso_alloc_urb(udev, pipe, desc,
					param->length, offset);

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Peter Chen 41d3c0b84d usb: misc: usbtest: allocate size of urb array according to user parameter
Allocate the size of urb pointer array according to testusb's
parameter sglen, and limits the length of sglen as MAX_SGLEN
(128 currently).

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-27 10:54:31 -05:00
Peter Chen a0c9d0defc usb: misc: usbtest: format max packet size for iso transfer
The current code prints all wMaxPacketSize content at endpoint
descriptor, if there is a high speed, high bandwidth endpoint,
it may confuse the users, eg, if there are 3 transactions during
microframe, it will print "wMaxPacket 1400" for packet content.
This commit splits wMaxpacketSize and transaction numbers for
output messages.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-18 10:05:23 -07:00
Saurabh Karajgaonkar a53870c0eb usb: misc: ftdi-elan: Simplify return statement
Replace redundant variable use in return statement.

Signed-off-by: Saurabh Karajgaonkar <skarajga@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-05 12:37:21 -07:00
Linus Torvalds 2a298679b4 USB patches for 4.2-rc1
Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
 majority of changes are in the gadget drivers, with a bunch of other
 small driver changes.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNobIACgkQMUfUDdst+ylXtQCgwTnzFBzly+3h1Npa2CWkr/Lw
 TWAAn31qEP28MLjm8iVJLNPwdVd2kt1w
 =hrdz
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
  majority of changes are in the gadget drivers, with a bunch of other
  small driver changes.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
  usb: dwc3: Use ASCII space in Kconfig
  usb: chipidea: add work-around for Marvell HSIC PHY startup
  usb: chipidea: allow multiple instances to use default ci_default_pdata
  dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
  phy: add Marvell HSIC 28nm PHY
  phy: Add Marvell USB 2.0 OTG 28nm PHY
  dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
  USB: ssb: use devm_kzalloc
  USB: ssb: fix error handling in ssb_hcd_create_pdev()
  usb: isp1760: check for null return from kzalloc
  cdc-acm: Add support of ATOL FPrint fiscal printers
  usb: chipidea: usbmisc_imx: Remove unneeded semicolon
  USB: usbtmc: add device quirk for Rigol DS6104
  USB: serial: mos7840: Use setup_timer
  phy: twl4030-usb: add ABI documentation
  phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
  phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
  phy: twl4030-usb: make runtime pm more reliable.
  drivers:usb:fsl: Fix compilation error for fsl ehci drv
  usb: renesas_usbhs: Don't disable the pipe if Control write status stage
  ...
2015-06-26 15:59:26 -07:00
Pratyush Anand e34cadde3b Pratyush Anand has moved
pratyush.anand@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with pratyush.anand@gmail.com.

Signed-off-by: Pratyush Anand <pratyush.anand@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:38 -07:00
Dennis O'Brien 0317a65b94 usb, HID: Remove Vernier devices from lsusb and hid_ignore_list
Removes Vernier Software & Technology devices from the ldusb
driver and the hid_ignore_list table of the usbhid driver in the
Linux tree.  These devices will now be supported via the hidraw
driver.

A user space driver for these devices will be found in the
Go! Software Development Kit from Vernier at
http://www.vernier.com/downloads/software-development-kits/go-sdk/.
These devices are also be supported by the LabQuest2 standalone
interface shown at http://www.vernier.com/products/interfaces/labq2/
and the LoggerPro for Linux software shown at
http://www.vernier.com/downloads/logger-pro-linux/.

Signed-off-by: Dennis O'Brien <dennis.obrien@eqware.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-06-01 14:44:08 +02:00
Greg Kroah-Hartman adde04c628 USB: uss720.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:12 +02:00
Greg Kroah-Hartman b87f5671cc USB: sisusb_con.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:12 +02:00
Greg Kroah-Hartman 187859f9ce USB: sisusb.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:11 +02:00
Randy Dunlap d9aab404e6 usb/misc: fix chaoskey build, needs HW_RANDOM
Fix build errors when HW_RANDOM is not enabled:

drivers/built-in.o: In function `chaoskey_disconnect':
chaoskey.c:(.text+0x5f3f00): undefined reference to `hwrng_unregister'
drivers/built-in.o: In function `chaoskey_probe':
chaoskey.c:(.text+0x5f42a6): undefined reference to `hwrng_register'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-03 19:03:15 +02:00
Keith Packard 8b86ed078a usb: Fix warnings in chaoskey driver
>    drivers/usb/misc/chaoskey.c: In function 'chaoskey_read':
> >> drivers/usb/misc/chaoskey.c:412:3: error: implicit declaration of function 'copy_to_user'
> >> [-Werror=implicit-function-declaration]
>       remain = copy_to_user(buffer, dev->buf + dev->used, this_time);

I was unable to reproduce this locally, but added an explicit

	#include <linux/uaccess.h>

which should ensure the definition on all architectures.

> sparse warnings: (new ones prefixed by >>)
>
> >> drivers/usb/misc/chaoskey.c:117:30: sparse: incorrect type in assignment (different base types)
>    drivers/usb/misc/chaoskey.c:117:30:    expected int [signed] size
>    drivers/usb/misc/chaoskey.c:117:30:    got restricted __le16 [usertype] wMaxPacketSize

Switched the code to using the USB descriptor accessor functions.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-01 14:00:11 +02:00
Ben Gamari c0ab6bb059 usb/misc/usb3503: Always read refclk frequency from DT
This is necessary to set REF_SEL appropriately in uses where refclk is
always available.

Signed-off-by: Ben Gamari <ben@smart-cactus.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26 10:50:52 +01:00
Keith Packard 66e3e59189 usb: Add driver for Altus Metrum ChaosKey device (v2)
This is a hardware random number generator. The driver provides both a
/dev/chaoskeyX entry and hooks the entropy source up to the kernel
hwrng interface. More information about the device can be found at
http://chaoskey.org

The USB ID for ChaosKey was allocated from the OpenMoko USB vendor
space and is visible as 'USBtrng' here:

http://wiki.openmoko.org/wiki/USB_Product_IDs

v2: Respond to review from Oliver Neukum <oneukum@suse.de>

 * Delete extensive debug infrastructure and replace it with calls to
   dev_dbg.

 * Allocate I/O buffer separately from device structure to obey
   requirements for non-coherant architectures.

 * Initialize mutexes before registering device to ensure that open
   cannot be invoked before the device is ready to proceed.

 * Return number of bytes read instead of -EINTR when partial read
   operation is aborted due to a signal.

 * Make sure device mutex is unlocked in read error paths.

 * Add MAINTAINERS entry for the driver

Signed-off-by: Keith Packard <keithp@keithp.com>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26 10:47:11 +01:00
Markus Elfring c60b89aa36 USB: appledisplay: Deletion of a check before backlight_device_unregister()
The backlight_device_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:56:40 +01:00
Nicholas Mc Guire 8f7e9473ab USB: legotower: use msecs_to_jiffies for time conversion
This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-18 16:20:34 +01:00
Andy Shevchenko 5d31a6dc78 USB: use %*ph specifier in uss720 driver
There is a %*ph specifier that allows to dump small buffers. This patch
converts the code to use the specifier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-09 11:37:18 -08:00
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlSOD20ACgkQMUfUDdst+ylLPACg2QrW1oHhdTMT9WI8jihlHVRM
 53kAoLeteByQ3iVwWurwwseRPiWa8+MI
 =OVRS
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Dan Carpenter fc625960ed USB: adutux: NULL dereferences on disconnect
Both "dev->udev" and "interface->dev" are NULL.  These printks are not
very interesting so I just deleted them.

Fixes: 03270634e2 ('USB: Add ADU support for Ontrak ADU devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26 19:50:15 -08:00
Markus Elfring bb2d43e091 USB-SIS: Deletion of an unnecessary check before the function call "usb_put_dev"
The usb_put_dev() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-24 17:24:31 -08:00
Peter Chen 39d98bdc10 usb: misc: usb3503: delete unnecessary 'out of memory' messages
The memory subsystem has already had similar message for it.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03 15:42:05 -08:00
Sudip Mukherjee 1cc373c654 usb: yurex: fixed sparse warning of incorrect type
fixed sparse warning of
	1) incorrect type (different address spaces)
	2) incorrect type in initializer

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-03 15:34:00 -08:00
Wolfram Sang 45c74c0655 usb: misc: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:49 +02:00
Antoine Tenart 3d46e73dfd usb: rename phy to usb_phy in HCD
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29 11:52:59 -04:00
Petr Mladek 37ebb54915 usb: hub: rename khubd to hub_wq in documentation and comments
USB hub has started to use a workqueue instead of kthread. Let's update
the documentation and comments here and there.

This patch mostly just replaces "khubd" with "hub_wq". There are only few
exceptions where the whole sentence was updated. These more complicated
changes can be found in the following files:

	   Documentation/usb/hotplug.txt
	   drivers/net/usb/usbnet.c
	   drivers/usb/core/hcd.c
	   drivers/usb/host/ohci-hcd.c
	   drivers/usb/host/xhci.c

Signed-off-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:33:19 -07:00
Tobias Jakobi 4463e15267 usb3503: clarify what the registers 'PDS' and 'CFG1' really do
The current comment sounds like you have to disable some of
the ports to be able to use self-powered mode. This is
misleading, so change the wording to reflect this.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:15:18 -07:00
Tobias Jakobi 6b0844214d usb3503: correct error message in probe ('connect' to 'interrupt')
intn is obviously the interrupt pin.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 22:15:18 -07:00
Arjun Sreedharan 113ad911ad usb: misc: yurex: remove useless casting of private_data
Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23 21:50:57 -07:00
Felipe Balbi f7cc38b16e Linux 3.17-rc4
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJUDOW+AAoJEHm+PkMAQRiGOXYH/00TPKm8PdM5cXXG2YYYv9eT
 W99K7KD2i0/qiVtlGgjjvB7fO3K0HcZusTd2jmVd8IWntXvauq7Zpw5YZkjwu4KX
 Y1HCwwCd2aw0FoqgrJhNP3+j5Cr1BD/HLtbffjCe+A3tppOIis4Bwt2wJOoYlXpS
 hU9Jxxc4lcRo8YKbffouDo7PIneWeJy8N+WGpUR5BfJIEK0ZZtCUqn3/3WLX4FYu
 fE6uiF/bACTpKXU/mo4dDbhZp439H/QdwQc9B0F8+8CBDMXKaNHrPV7kN36T2SWa
 fD4boikTsi/yh9Ks1fvHbvNq2N0ihoMnja+vLRyvjAcAQv2fKG3OZtYgFWSdghU=
 =Xknd
 -----END PGP SIGNATURE-----

Merge tag 'v3.17-rc4' into next

Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.

Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/gadget/Makefile
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/legacy/Makefile
	drivers/usb/phy/phy-samsung-usb.h
2014-09-08 14:39:01 -05:00
Amit Virdi 457a0955e1 usbtest: Add interrupt EP testcases
Two simple test cases for interrupt endpoints are added to the usbtest.c file.
These are simple non-queued interrupt IN and interrupt OUT transfers. Currently,
only gadget zero is capable of executing the interrupt EP test cases. However,
extending the same to other gadgets is extremely simple and can be done
on-demand.

The two new tests added are
  - Test 25: To verify Interrupt OUT transfer
  - Test 26: To verify Interrupt IN transfer

Since the default value of wMaxPacketSize is set as 1024, so interrupt
IN transfers must be specified with the size parameter = multiple of
1024. Otherwise the default value (512) in the usbtest application fails
the transfer. See [RUN 4] for sample logs

The application logs (usbtest) and corresponding kernel logs are as
following:

[Run 1]
./testusb -a -c 10 -s 2048 -t 26 -v 511
usbtest 7-1:3.0: TEST 26: read 2048 bytes 10 times

[Run 2]
./testusb -a -c 10 -s 1024 -t 25 -v 511
usbtest 7-1:3.0: TEST 25: write 1024 bytes 10 times

[Run 3]
./testusb -a -c 10 -s 1098 -t 25 -v 511
usbtest 7-1:3.0: TEST 25: write 1098 bytes 10 times

[Run 4 - Failure case scenario]
./testusb -a  -t 26
unknown speed   /dev/bus/usb/007/004    0
/dev/bus/usb/007/004 test 26 --> 75 (Value too large for defined data type)

usbtest 7-1:3.0: TEST 26: read 512 bytes 1000 times
usb 7-1: test26 failed, iterations left 999, status -75 (not 0)

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-29 15:51:11 -05:00
Stephen Hemminger 5b6b80aeb2 USB: sisusb: add device id for Magic Control USB video
I have a j5 create (JUA210) USB 2 video device and adding it device id
to SIS USB video gets it to work.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-26 12:07:46 -07:00
Pratyush Anand b1bd3f1a39 usb: lvstest: Fix sparse warnings generated by kbuild test bot
Following sparse warnings were reported by kbuild test bot

drivers/usb/misc/lvstest.c:314:28: sparse: incorrect type in assignment (different base types)
   drivers/usb/misc/lvstest.c:314:28:    expected unsigned short [unsigned] [usertype] portchange
   drivers/usb/misc/lvstest.c:314:28:    got restricted __le16 [usertype] wPortChange
drivers/usb/misc/lvstest.c:332:40: sparse: restricted __le16 degrades to integer

This patch fixes above warnings.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-22 16:30:58 -07:00
Pratyush Anand ce21bfe603 USB: Add LVS Test device driver
OTG3 and EH Compliance Plan 1.0 talks about Super Speed OTG Verification
system (SS-OVS) which consists of an excersizer and analyzer.

USB Compliance Suite from Lecroy or Ellisys can act as such SS-OVS for
Link Layer Validation (LVS).

Some modifications are needed for an embedded Linux USB host to pass all
these tests.  Most of these tests require just Link to be in U0. They do
not work with default Linux USB stack since, default stack does port
reset and then starts sending setup packet, which is not expected by
Link Layer Validation (LVS) device of Lecroy Compliance Suit.  Then,
There are many Link Layer Tests which need host to generate specific
traffic.

This patch supports specific traffic generation cases. As of now all the
host Lecroy Link Layer-USBIF tests (except TD7.26) passes
with this patch for single run using  Lecroy USB Compliance Suite
Version 1.98 Build 239 and Lecroy USB Protocol Analyzer version 4.80
Build 1603. Therefore patch seems to be a good candidate for inclusion.
Further modification can be done on top of it.

lvstest driver will not bind to any device by default. It can bind
manually to a super speed USB host controller root hub. Therefore, regular
hub driver must be unbound before this driver is bound. For example, if
2-0:1.0 is the xhci root hub, then execute following to unbind hub driver.

 echo 2-0:1.0 > /sys/bus/usb/drivers/hub/unbind

Then write Linux Foundation's vendor ID which is used by root hubs and
SS root hub's device ID into new_id file. Writing IDs into new_id file
will also bind the lvs driver with any available SS root hub interfaces.

 echo "1D6B 3" > /sys/bus/usb/drivers/lvs/new_id

Now connect LVS device with root hub port.

Test case specific traffic can be generated as follows whenever needed:

1. To issue "Get Device descriptor" command for TD.7.06:
 echo  > /sys/bus/usb/devices/2-0\:1.0/get_dev_desc

2. To set U1 timeout to 127 for TD.7.18
 echo 127 > /sys/bus/usb/devices/2-0\:1.0/u1_timeout

3. To set U2 timeout to 0 for TD.7.18
 echo 0 > /sys/bus/usb/devices/2-0\:1.0/u2_timeout

4. To issue "Hot Reset" for TD.7.29
 echo  > /sys/bus/usb/devices/2-0\:1.0/hot_reset

5. To issue "U3 Entry" for TD.7.35
 echo  > /sys/bus/usb/devices/2-0\:1.0/u3_entry

6. To issue "U3 Exit" for TD.7.36
 echo  > /sys/bus/usb/devices/2-0\:1.0/u3_exit

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-17 17:11:09 -07:00
Joonyoung Shim ecdc071d02 usb: usb3503: add PM functions
The usb3503 needs to switch to standby mode while suspending and should
switch to hub mode when resumed. Also we can control clock on PM
function.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-11 18:14:10 -07:00
Tushar Behera ec5734c41b usb: misc: usb3503: Update error code in print message
'err' is uninitialized, rather print the error code directly.

This also fixes following warning.
drivers/usb/misc/usb3503.c: In function ‘usb3503_probe’:
drivers/usb/misc/usb3503.c:195:11: warning: ‘err’ may be used uninitialized
in this function [-Wmaybe-uninitialized]
    dev_err(dev, "unable to request refclk (%d)\n", err);

Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-09 15:41:02 -07:00
Alan Stern 32b36eeae6 USB: usbtest: add a timeout for scatter-gather tests
In usbtest, tests 5 - 8 use the scatter-gather library in usbcore
without any sort of timeout.  If there's a problem in the gadget or
host controller being tested, the test can hang.

This patch adds a 10-second timeout to the tests, so that they will
fail gracefully with an ETIMEDOUT error instead of hanging.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Huang Rui <ray.huang@amd.com>
Tested-by: Huang Rui <ray.huang@amd.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-17 17:05:50 -07:00
Huang Rui a7683eb3af usb: usbtest: add pattern check on pipe in phase of unlink read
TEST 11 unlinks the URB read request for N times. When host and gadget
both initialize pattern 1 (mod 63) data series to do IN transfer, the
host side function should check the data buffer if it is as mod 63
series, because the data packet which host receivced will follow
pattern 1. So this patch adds this checking action.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:23:43 -07:00
Huang Rui e4d58f5dcb usb: usbtest: fix unlink write error with pattern 1
TEST 12 and TEST 24 unlinks the URB write request for N times. When
host and gadget both initialize pattern 1 (mod 63) data series to
transfer, the gadget side will complain the wrong data which is not
expected.  Because in host side, usbtest doesn't fill the data buffer
as mod 63 and this patch fixed it.

[20285.488974] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.489181] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active
[20285.489423] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb50800 length 512 last
[20285.489727] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000
[20285.490055] dwc3 dwc3.0.auto: Command Complete --> 0
[20285.490281] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.490492] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Active
[20285.490713] dwc3 dwc3.0.auto: ep1out-bulk: endpoint busy
[20285.490909] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Complete
[20285.491117] dwc3 dwc3.0.auto: request ffff8800aa6cb480 from ep1out-bulk completed 512/512 ===> 0
[20285.491431] zero gadget: bad OUT byte, buf[1] = 0
[20285.491605] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Set Stall' params 00000000 00000000 00000000
[20285.491915] dwc3 dwc3.0.auto: Command Complete --> 0
[20285.492099] dwc3 dwc3.0.auto: queing request ffff8800aa6cb480 to ep1out-bulk length 512
[20285.492387] dwc3 dwc3.0.auto: ep1out-bulk: Transfer Not Ready
[20285.492595] dwc3 dwc3.0.auto: ep1out-bulk: reason Transfer Not Active
[20285.492830] dwc3 dwc3.0.auto: ep1out-bulk: req ffff8800aa6cb480 dma aeb51000 length 512 last
[20285.493135] dwc3 dwc3.0.auto: ep1out-bulk: cmd 'Start Transfer' params 00000000 a9eaf000 00000000
[20285.493465] dwc3 dwc3.0.auto: Command Complete --> 0

Cc: <stable@vger.kernel.org>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:23:43 -07:00
Marek Szyprowski 657d898a93 usb: usb5303: add support for reference clock specified in device tree
USB3503 chip supports 8 values of reference clock. The value is
specified by REF_SEL[1:0] pins and INT_N line. This patch add support
for getting 'refclk' clock, enabling it and setting INT_N line according
to the value of the gathered clock. If no clock has been specified,
driver defaults to the old behaviour (assuming that clock has been
specified by REF_SEL pins from primary reference clock frequencies
table).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:19:04 -07:00
Oliver Neukum c78d1ecfd7 USB: yurex: fix race between probe() and read()
There's a window during which read() would return 0 instead
of a correct error for no data yet. Reorder initialization
to fix the race.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:03:58 -07:00
Oliver Neukum 552e1f2679 USB: appledisplay: fix race between reading and writing from the device
The workqueue handler may call appledisplay_bl_get_brightness() while
user space calls appledisplay_bl_update_status(). As they share a
buffer that must not happen. Use a mutex for mutual exclusion.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 16:03:57 -07:00
Joe Perches 549e83500b USB: iowarrior: Convert local dbg macro to dev_dbg
Use a more standard logging style.

Add terminating newlines to formats.
Remove __func__ as that can be added via dynamic debug.
Remove now unnecessary debug module parameter.
Remove the dbg macro too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 15:00:22 -07:00
Joe Perches e2b86c1d39 USB: appledisplay: Convert /n to \n
Use a newline character appropriately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-27 15:00:22 -07:00
Joe Perches 8355d39cc2 usb: ftdi-elan: Use pr_<level>
Use a more current logging style.

Add pr_fmt to prefix messages appropriately.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches a92cec2737 usb: ftdi-elan: Coalesce string fragment
Make it easier to grep for this.

Neaten a trailing statement.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 5acc6e4071 usb: ftdi-elan: Coalesce formats
Make it easier to find formats.

Realign arguments around these changes.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 8dae693ca9 usb: ftdi-elan: Convert leading spaces to tabs
Use tabs for indentation.
Use a more normal kernel comment style (align multiline *'s)

git diff -w shows no differences

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 90ba4f7919 usb: ftdi-elan: Fix format fragments
Breaking formats into fragments with a split
between % and field types should be coalesced.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-04-24 13:13:59 -07:00
Joe Perches 3c1b2c3ecd USB: sisusb: Use static const, fix typo
Convert 1 char * array to 2 char arrays to reduce size.
Use static const to avoid array reloads on function entry.
Fix asymmetric typo.

$ size drivers/usb/misc/sisusbvga/sisusb.o*
   text	   data	    bss	    dec	    hex	filename
  29971	   4841	   9180	  43992	   abd8	drivers/usb/misc/sisusbvga/sisusb.o.new
  30083	   4841	   9180	  44104	   ac48	drivers/usb/misc/sisusbvga/sisusb.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-03-03 08:54:30 -08:00
Christian Vogel e8fcbb6140 usb/misc/usbled: Add Riso Kagaku Webmail Notifier
Add support for the "Webmail Notifier" (USB powered LED for signaling
new emails) made by Riso Kagaku Corp. which displays 7 distinct colors.

USB Protocol initially reverse engineered by
	https://code.google.com/p/usbmailnotifier/.

Signed-off-by: Christian Vogel <vogelchr@vogel.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-11 14:00:16 -08:00
Paul Bolle ea17c7c6ad USB: ELAN: Remove useless "default M" lines
The Kconfig entries for USB_U132_HCD and USB_FTDI_ELAN default to
(uppercase) "M". But in Kconfig (lowercase) "m" is a magic symbol. "M"
is an ordinary symbol. As "M" is never set these Kconfig symbols will
also not be set by default.

Since I'm not aware of a reason why these driver should be set by
default, let's just drop these lines (that basically do nothing).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-11 13:47:13 -08:00
Paul Gortmaker 803a536243 usb: delete non-required instances of include <linux/init.h>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>.  Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-08 15:01:39 -08:00
Rahul Bedarkar 45868b3a98 USB: misc: idmouse: correct spelling mistake in error string
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-03 12:39:31 -08:00
Rahul Bedarkar 3fb4c07a52 USB: yurex: fix spelling mistake in comment
fix spelling mistake in comment

Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-03 12:37:57 -08:00
Rahul Bedarkar f38f1418f9 USB: iowarrior: fix spelling mistake in comment
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-01-03 12:37:57 -08:00
Greg Kroah-Hartman e2a3a64855 xhci: Cleanups, non-urgent fixes for 3.14.
Happy Holidays, Greg!
 
 Here's four patches to be queued to usb-next for 3.14.
 
 One adds a module parameter to the xHCI driver to allow users to enable
 xHCI quirks without recompiling their kernel, which you've already said
 is fine.  The second patch is a bug fix for new usbtest code that's only
 in usb-next.  The third patch is simple cleanup.
 
 The last patch is a non-urgent bug fix for xHCI platform devices.  The
 bug has been in the code since 3.9.  You've been asking me to hold off
 on non-urgent bug fixes after -rc4/-rc5, so it can go into usb-next, and
 be backported to stable once 3.14 is out.
 
 These have all been tested over the past week.  I did run across one
 oops, but it turned out to be a bug in 3.12, and therefore not related
 to any of these patches.
 
 Please queue these for usb-next and 3.14.
 
 Thanks,
 Sarah Sharp
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJStMtLAAoJEBMGWMLi1Gc5uxMQAIXOL38n53yfNETU+DJMLaWB
 +DY/RJjJ0zAZuRL9emOvR+BYEsQpd2q6aT3F2MryjJT/dhEKwJgHLTLOv0EQEWS7
 dfLXX/NKNI+iRNyJkSATriytWMmMwv13kTXkreu99ZAw2PWWt7mM4BPHaWJ6sz5G
 MjWS3v6LE59zjZatdzZyg4wlgUeNmO8cc4CV8YSqv0rFiVrKBL8IJsxwgQkWXI+2
 J19hZcEpgeVMPo7aPlkMGoS1Ze9SxTviALBVLBWwwR028UfWCELFWsSFGVfJ6RgJ
 /3DsE+jhQBn/1Y1o6hrlU/arDj7N/iJ3Gz5Ru5l+BtJw56fdaI/ToaHzzIDarONE
 DGLiziDIknlSPsuX6X81kqXqROz1Zt624aqLipvqGCk0FMrLZz5BMaPEslkmW4Wb
 /TQRX6KnTVzK4uMjv5yNVaGtnyoTStJeRE7dIF4/9e2YDLo4SCmm2Y9necr4C3Ls
 7FzT8t6m9F74ZHAkmPpKFlEkYTYOy3yv/KBlhHF/OVFo9FAxAwUEY69QVrvhaHVX
 GhLANc4NOuJb1eIwQarVkub2+lLI3N9zwEWliepKKUTQ8OTFDkDFM/+bwDHd4RzD
 PO23wuFHVLj9N2BZbIAV2OkDyJLU2FOl+ZiEG6NUDXssihiZj4AVfIRiOU1c3EMc
 g27X+N4FI2fnpqvAYq/a
 =PRbx
 -----END PGP SIGNATURE-----

Merge tag 'for-usb-next-2013-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next

Sarah writes:

xhci: Cleanups, non-urgent fixes for 3.14.

Happy Holidays, Greg!

Here's four patches to be queued to usb-next for 3.14.

One adds a module parameter to the xHCI driver to allow users to enable
xHCI quirks without recompiling their kernel, which you've already said
is fine.  The second patch is a bug fix for new usbtest code that's only
in usb-next.  The third patch is simple cleanup.

The last patch is a non-urgent bug fix for xHCI platform devices.  The
bug has been in the code since 3.9.  You've been asking me to hold off
on non-urgent bug fixes after -rc4/-rc5, so it can go into usb-next, and
be backported to stable once 3.14 is out.

These have all been tested over the past week.  I did run across one
oops, but it turned out to be a bug in 3.12, and therefore not related
to any of these patches.

Please queue these for usb-next and 3.14.

Thanks,
Sarah Sharp
2013-12-21 15:58:40 -08:00
Rashika Kheria ff4708e69a drivers: usb: Mark function as static in usbsevseg.c
Mark function my_memlen() as static in misc/usbsevseg.c because it is
not used outside this file.

This eliminates the following warning in misc/usbsevseg.c:
drivers/usb/misc/usbsevseg.c:60:15: warning: no previous prototype for ‘my_memlen’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-19 10:23:12 -08:00