Commit Graph

17 Commits

Author SHA1 Message Date
Paul Gortmaker 5d76fc219c drivers/isdn: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required.
In preparation of the module.h usage cleanup, call out the header
that we need to get EXPORT_SYMBOL variants and THIS_MODULE into scope.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:49 -04:00
David S. Miller 81b424d9e2 isdn: mISDN: socket: Fix set-but-unused variables.
The variable 'len' is set but unused in data_sock_getsockopt().

The code should use 'len' to validate that the user's socket option is
indeed the right size.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-17 16:48:53 -07:00
Kulikov Vasiliy ce384d91cd isdn: mISDN: socket: fix information leak to userland
Structure mISDN_devinfo is copied to userland with the field "name"
that has the last elements unitialized.  It leads to leaking of
contents of kernel stack memory.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-30 16:49:38 -07:00
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Eric Paris 3f378b6844 net: pass kern to net_proto_family create function
The generic __sock_create function has a kern argument which allows the
security system to make decisions based on if a socket is being created by
the kernel or by userspace.  This patch passes that flag to the
net_proto_family specific create function, so it can do the same thing.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-05 22:18:14 -08:00
Stephen Hemminger ec1b4cf74c net: mark net_proto_ops as const
All usages of structure net_proto_ops should be declared const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-07 01:10:46 -07:00
David S. Miller b7058842c9 net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.

Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-30 16:12:20 -07:00
Karsten Keil eac74af9b5 mISDN: Cleanup debug messages
This patch make debug printk's KERN_DEBUG and also fix some
codestyle issues.

Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:45 -07:00
Karsten Keil 5df3b8bcc7 mISDN: Fix skb leak in error cases
If the channel receive function returns an error the skb must be freed.

Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:55:30 -07:00
Andreas Eversberg e73f6b2260 mISDN: Added layer-1-hold feature
Add IMHOLD_L1 ioctl.
The feature will be disabled on closing.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-05-25 00:51:33 -07:00
Andreas Eversberg 9a812553bd mISDN: Correct busy device detection
Correct busy device detection.
This fix belongs to last commit.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09 22:44:27 +01:00
Andreas Eversberg 1b4d33121f mISDN: Fix deactivation, if peer IP is removed from l1oip instance.
Added GETPEER operation.
 Socket now checks if device is already busy at a differen mode.

Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09 22:44:27 +01:00
Matthias Urlichs 837468d135 mISDN: Use struct device name field
struct device already has a 'name' member, use it.

Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09 22:44:24 +01:00
Matthias Urlichs 8b6015f736 mISDN: Added an ioctl to change the device name
To get persistent device names with hotplug we need to rename devices
sometime.

Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
2009-01-09 22:44:23 +01:00
Hannes Eder dfa96ec1bb mISDN: consistently define 'debug' as '*u_int'
Impact: change data type for variable 'debug' from *int to *u_int,
same for the argument type of mISDN_inittimer

In "core.h" mISDN_inittimer is declared with the argument type "*u_int", make
the definition in "timerdev.c" match this.

This fixes also this warnings:

  drivers/isdn/mISDN/layer1.c:391:8: warning: incorrect type in assignment (different signedness)
  drivers/isdn/mISDN/layer1.c:391:8:    expected int *static [toplevel] debug
  drivers/isdn/mISDN/layer1.c:391:8:    got unsigned int [usertype] *deb
  drivers/isdn/mISDN/layer2.c:2200:8: warning: incorrect type in assignment (different signedness)
  drivers/isdn/mISDN/layer2.c:2200:8:    expected int *static [toplevel] debug
  drivers/isdn/mISDN/layer2.c:2200:8:    got unsigned int [usertype] *deb
  drivers/isdn/mISDN/socket.c:769:8: warning: incorrect type in assignment (different signedness)
  drivers/isdn/mISDN/socket.c:769:8:    expected int *static [toplevel] debug
  drivers/isdn/mISDN/socket.c:769:8:    got unsigned int [usertype] *deb

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-12 21:13:45 -08:00
Karsten Keil ff4cc1de24 mISDN cleanup user interface
The channelmap should have the same size on 32 and 64 bit systems
and should not depend on endianess.
Thanks to David Woodhouse for spotting this.

Signed-off-by: Karsten Keil <kkeil@suse.de>
2008-08-02 16:28:50 +02:00
Karsten Keil 1b2b03f8e5 Add mISDN core files
Add mISDN core files

Signed-off-by: Karsten Keil <kkeil@suse.de>
2008-07-27 01:54:58 +02:00