summaryrefslogtreecommitdiff
path: root/stun.h
diff options
context:
space:
mode:
authorTobias Klauser <tklauser@distanz.ch>2013-07-13 16:45:05 +0200
committerTobias Klauser <tklauser@distanz.ch>2013-07-13 16:46:15 +0200
commit3fb9ca90bffa92e5c5399440994170c4b8cb96f1 (patch)
tree00ff7762ea6cb3dffea46b4af71d142b8049e7c4 /stun.h
parentdbc15575a7e0ab843931643c573404081cd3582c (diff)
dissector: Mark unused parameters with __maybe_unused
In order to avoid compiler warnings when compiling with -W/-Wunused-parameter, mark unused function parameters with __maybe_unused. Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'stun.h')
0 files changed, 0 insertions, 0 deletions
lftests/user?h=nds-private-remove&id=add7c65ca426b7a37184dd3d2172394e23d585d6&id2=75422726b0f717d67db3283c2eb5bc14fa2619c5'>diff)
pid: fix lockdep deadlock warning due to ucount_lock
========================================================= [ INFO: possible irq lock inversion dependency detected ] 4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G W --------------------------------------------------------- swapper/1/0 just changed the state of lock: (&(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'tools/testing/selftests/user')