tag c6029e88d4c7e72548f9ae53288e2a6a51a6b6eb
tagger Ingo Molnar <mingo@kernel.org> Sun Dec 27 10:46:18 2020 +0100
object 91ea62d58bd661827c328a2c6c02a87fa4aae88b

Misc fixes/updates:

- Fix static keys usage in module __init sections
- Add separate MAINTAINERS entry for static branches/calls
- Fix lockdep splat with CONFIG_PREEMPTIRQ_EVENTS=y tracing

Signed-off-by: Ingo Molnar <mingo@kernel.org>

commit 91ea62d58bd661827c328a2c6c02a87fa4aae88b
author Peter Zijlstra <peterz@infradead.org> Fri Dec 18 16:39:14 2020 +0100
committer Peter Zijlstra <peterz@infradead.org> Fri Dec 18 16:53:13 2020 +0100
tree 531563294d9ea18a4b4797b91fafee39d3a5f720
parent 441fa3409769180df2fd12fcada35441435a120c

softirq: Avoid bad tracing / lockdep interaction

Similar to commit:

  1a63dcd8765b ("softirq: Reorder trace_softirqs_on to prevent lockdep splat")

__local_bh_enable_ip() can also call into tracing with inconsistent
state. Unlike that commit we don't need to bother about the tracepoint
because 'cnt-1' never matches preempt_count() (by construction).

Reported-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lkml.kernel.org/r/20201218154519.GW3092@hirez.programming.kicks-ass.net