Skip to content

K
kernel_linux

OpenHarmony / kernel_linux
上一次同步 大约 4 年

通知 14
Star 8
Fork 2
K
kernel_linux
切换分支/标签
  1. 14 5月, 2012 1 次提交
    • S
      [media] v4l2: use __u32 rather than enums in ioctl() structs · 6016af82
      由 Sakari Ailus 提交于 
      V4L2 uses the enum type in IOCTL arguments in IOCTLs that were defined until
the use of enum was considered less than ideal. Recently Rémi Denis-Courmont
brought up the issue by proposing a patch to convert the enums to unsigned:

<URL:http://www.spinics.net/lists/linux-media/msg46167.html>

This sparked a long discussion where another solution to the issue was
proposed: two sets of IOCTL structures, one with __u32 and the other with
enums, and conversion code between the two:

<URL:http://www.spinics.net/lists/linux-media/msg47168.html>

Both approaches implement a complete solution that resolves the problem. The
first one is simple but requires assuming enums and __u32 are the same in
size (so we won't break the ABI) while the second one is more complex and
less clean but does not require making that assumption.

The issue boils down to whether enums are fundamentally different from __u32
or not, and can the former be substituted by the latter. During the
discussion it was concluded that the __u32 has the same size as enums on all
archs Linux is supported: it has not been shown that replacing those enums
in IOCTL arguments would break neither source or binary compatibility. If no
such reason is found, just replacing the enums with __u32s is the way to go.

This is what this patch does. This patch is slightly different from Remi's
first RFC (link above): it uses __u32 instead of unsigned and also changes
the arguments of VIDIOC_G_PRIORITY and VIDIOC_S_PRIORITY.
Signed-off-by: NRémi Denis-Courmont <remi@remlab.net>
Signed-off-by: NSakari Ailus <sakari.ailus@iki.fi>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      6016af82
  3. 02 5月, 2012 1 次提交
  5. 11 4月, 2012 5 次提交
  7. 23 3月, 2012 1 次提交
    • J
      kgdb,debug_core: add the ability to control the reboot notifier · bec4d62e
      由 Jason Wessel 提交于 
      Sometimes it is desirable to stop the kernel debugger before allowing
a system to reboot either with kdb or kgdb.  This patch adds the
ability to turn the reboot notifier on and off or enter the debugger
and stop kernel execution before rebooting.

It is possible to change the setting after booting the kernel with the
following:

echo 1 > /sys/module/debug_core/parameters/kgdbreboot

It is also possible to change this setting using kdb / kgdb to
manipulate the variable directly.

Using KDB:
   mm kgdbreboot 1

Using gdb:
   set kgdbreboot=1
Reported-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
      bec4d62e
  9. 20 3月, 2012 1 次提交
  11. 19 3月, 2012 1 次提交
  13. 08 3月, 2012 1 次提交
  15. 07 3月, 2012 1 次提交
  17. 29 2月, 2012 1 次提交
  19. 28 2月, 2012 2 次提交
  21. 14 2月, 2012 2 次提交
  23. 07 2月, 2012 1 次提交
    • J
      cfg80211: stop tracking authenticated state · 95de817b
      由 Johannes Berg 提交于 
      To track authenticated state seems to have been
a design mistake in cfg80211. It is possible to
have out of band authentication (FT), tracking
multiple authentications caused more problems
than it ever helped, and the implementation in
mac80211 is too complex.

Remove all this complexity, and let userspace
do whatever it wants to, mac80211 can deal with
that just fine. Association is still tracked of
course, but authentication no longer is. Local
auth state changes are thus no longer of value,
so ignore them completely.

This will also help implement SAE -- asking the
driver to do an authentication is now almost
equivalent to sending an authentication frame,
with the exception of shared key authentication
which is still handled completely.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      95de817b
  25. 03 2月, 2012 1 次提交
  27. 02 2月, 2012 1 次提交
  29. 25 1月, 2012 1 次提交
  31. 24 1月, 2012 4 次提交
  33. 17 1月, 2012 3 次提交
  35. 16 1月, 2012 4 次提交
  37. 11 1月, 2012 3 次提交
  39. 06 1月, 2012 1 次提交
  41. 05 1月, 2012 2 次提交
  43. 31 12月, 2011 1 次提交
  45. 20 12月, 2011 1 次提交