* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: fix ni_daq_700 compilation
pcmcia: IOCARD is also required for using IRQs
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
vfs: make no_llseek the default
vfs: don't use BKL in default_llseek
llseek: automatically add .llseek fop
libfs: use generic_file_llseek for simple_attr
mac80211: disallow seeks in minstrel debug code
lirc: make chardev nonseekable
viotape: use noop_llseek
raw: use explicit llseek file operations
ibmasmfs: use generic_file_llseek
spufs: use llseek in all file operations
arm/omap: use generic_file_llseek in iommu_debug
lkdtm: use generic_file_llseek in debugfs
net/wireless: use generic_file_llseek in debugfs
drm: use noop_llseek
The patch below updates broken web addresses in the kernel
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.
The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.
New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time. Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.
The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.
Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.
Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.
===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
// but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}
@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}
@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}
@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}
@ fops0 @
identifier fops;
@@
struct file_operations fops = {
...
};
@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
.llseek = llseek_f,
...
};
@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
.read = read_f,
...
};
@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
.write = write_f,
...
};
@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
.open = open_f,
...
};
// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
... .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};
@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
... .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};
// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
... .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};
// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};
// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};
@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+ .llseek = default_llseek, /* write accesses f_pos */
};
// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////
@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
.write = write_f,
.read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};
@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};
@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};
@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
What's worse than no comment? A wrong comment.
Several PCMCIA device drivers contained the same comments, which
were based on how the PCMCIA subsystem worked in the old days of 2.4.,
and which were originally part of a "dummy_cs" driver. These comments
no longer matched at all what is happening now, and therefore should
be removed.
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
The Status (CISREG_CCSR) and ExtStatus (CISREG_ESR) registers were
only accessed to enable audio output for some drivers and IRQ for
serial_cs.c. The former also required setting config_req_t.Attributes
to CONF_ENABLE_SPKR; the latter can be simplified to setting this
field to CONF_ENABLE_ESR.
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: linux-scsi@vger.kernel.org
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Commit 90abdc3b9 converted all PCMCIA users away from io_req_t. In
das08_cs.c the converted IO lines mask setting was added but the old
line using the now inexistent p_dev->io was not removed.
Signed-off-by: Andreas Bombe <aeb@debian.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: avoid buffer overflow in pcmcia_setup_isa_irq
pcmcia: do not request windows if you don't need to
pcmcia: insert PCMCIA device resources into resource tree
pcmcia: export resource information to sysfs
pcmcia: use struct resource for PCMCIA devices, part 2
pcmcia: remove memreq_t
pcmcia: move local definitions out of include/pcmcia/cs.h
pcmcia: do not use io_req_t when calling pcmcia_request_io()
pcmcia: do not use io_req_t after call to pcmcia_request_io()
pcmcia: use struct resource for PCMCIA devices
pcmcia: clean up cs.h
pcmcia: use pcmica_{read,write}_config_byte
pcmcia: remove cs_types.h
pcmcia: remove unused flag, simplify headers
pcmcia: remove obsolete CS_EVENT_ definitions
pcmcia: split up central event handler
pcmcia: simplify event callback
pcmcia: remove obsolete ioctl
Conflicts in:
- drivers/staging/comedi/drivers/*
- drivers/staging/wlags49_h2/wl_cs.c
due to dev_info_t and whitespace changes
Several drivers contained dummy code to request for memory windows,
even though they never made use of it. Remove all such code
snippets.
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This patch fixes some coding style issues in adl_pci9111.c from checkpatch.pl
Signed-off-by: Mark Rankilor <reodge@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up some style issues in dmm32at.c as found by checkpatch.pl
Signed-off-by: Mark Rankilor <reodge@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch cleans up some issues discovered by checkpatch.pl
Signed-off-by: Mark Rankilor <reodge@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the kcomedilib_main.c file that fixes up some printk() warning issues.
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_labpc.c file that fixes up 80 character warnings found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There are only 6 elements in the cb_pcidda_boards[] array so the
original code read past the end. After this change nothing uses N_BOARDS
so I removed the definition.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I received a report that AI streaming acquisitions do not work properly
for the adl_pci9111 driver when convert_src is TRIG_TIMER and
scan_begin_src is TRIG_FOLLOW (and scan_begin_arg is therefore 0). This
seems to be down to the incorrect setting of dev_private->scan_delay in
pci9111_ai_do_cmd(). Under the previously stated conditions,
dev_private->scan_delay ends up set to (unsigned int)-1, but it ought to
be set to 0. The function sets it to 0 initially, and it only makes
sense to change it if both convert_src and scan_begin_src are set to
TRIG_TIMER.
Note: 'scan_delay' is the number of unwanted scans to discard after each
valid scan. The hardware does not support 'scan' timing as such, just a
regularly paced conversion timer (with automatic channel switching
between conversions). The driver simulates a scan period that is some
(>1) multiple of the conversion period times the scan length
(chanlist_len samples) by reading chanlist_len samples and discarding
the next scan_delay times chanlist_len samples.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes up many coding style issues in adv_pci_dio.c found by
checkpatch.pl
Signed-off-by: Mark Rankilor <reodge@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
A patch for s626.c to fix some of the warnings
reported by the checkpatch.pl tool, namely,
-suspect code indent for conditional statements
-please, no space before tabs
Signed-off-by: John Sheehan <john.d.sheehan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
A patch for s626.c to fix errors reported by
checkpatch.pl tool, namely,
-code indent should use tabs where possible
-"foo * bar" should be "foo *bar"
-trailing statements should be on next line
Signed-off-by: John Sheehan <john.d.sheehan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the pcl812.c file that fixes up the following
issues:
ERROR: code indent should use tabs where possible x 27
WARNING: line over 80 characters x 37
WARNING: please, no space before tabs x 13
WARNING: braces {} are not necessary for single statement blocks x 2
WARNING: printk() should include KERN_ facility level x 22
WARNING: braces {} are not necessary for any arm of this statement x 5
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Acked-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The dmm32at.c and comedi_bond.c comedi driver files contain an
instructional comment block copied over from skel.c about how to format
a driver comment block. This comment was modified in skel.c by a
previous patch in this series to stop Comedi's 'dump_doc' script
treating it as an actual driver comment block. There isn't any need to
repeat this comment block in the other source files, so rather than
modify it, this patch just removes it from those files.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Comedi team have a script 'dump_doc' to extract text from the driver
comment block (starting with line 'Driver:') in (most of) the comedi
driver source files. This was recently updated to allow and strip off a
" * " prefix at the start of each line (well actually, it uses the perl
substitution 's/^ ?\* ?//').
The skel.c file contains an instructional comment block about how to
format this driver comment block, but the updated 'dump_doc' script
mistakenly treats this as a valid driver comment block. This patch adds
some extra whitespace to stop the instructional comment block being
treated as a valid driver comment block by Comedi's 'dump_doc' script.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Previous whitespace changes to das08.c removed some whitespace from a
"driver comment block" that the Comedi team would like to keep. "Header
continuation lines" in this comment block should be indented with
whitespace. (This is after the " * " at the start of each line.)
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the quatech_daqp_cs.c file that fixes up the following
issues:
ERROR: code indent should use tabs where possible x 1
WARNING: line over 80 characters x 1
WARNING: braces {} are not necessary for single statement blocks x 10
WARNING: printk() should include KERN_ facility level x 6
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the pcmda12.c file that fixes up five printk() warning issues
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the pcl816.c file that fixes up the following
issues:
ERROR: code indent should use tabs where possible x 2
WARNING: line over 80 characters x 34
WARNING: please, no space before tabs x 1
WARNING: braces {} are not necessary for single statement blocks x 6
WARNING: printk() should include KERN_ facility level x 15
WARNING: braces {} are not necessary for any arm of this statement x 1
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the pcl711.c file that fixes up printk()
warning issues.
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the me4000.c file that fixes up the following
issues:
ERROR: space required after that close brace '}' x 13
ERROR: spaces required around that ':' (ctx:VxV) x 3
WARNING: line over 80 characters x 96
WARNING: braces {} are not necessary for any arm of this statement x 2
Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove all remaining typedefs from comedi drivers
Signed-off-by: Arun Thomas <arun.thomas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move the PCI devinit/devexit routines to the respective C source files
instead of calling COMEDI_PCI_INITCLEANUP
Signed-off-by: Arun Thomas <arun.thomas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds