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| author | Steven Rostedt (VMware) <[email protected]> | 2018-06-22 00:35:26 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-06-22 02:19:16 +0000 |
| commit | 6cc65be4f6f2a7186af8f3e09900787c7912dad2 (patch) | |
| tree | 98a6b6372889922e0568401b89a04d60767043b2 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | locking/lockdep: Do not record IRQ state within lockdep code (diff) | |
| download | kernel-6cc65be4f6f2a7186af8f3e09900787c7912dad2.tar.gz kernel-6cc65be4f6f2a7186af8f3e09900787c7912dad2.zip | |
locking/qspinlock: Fix build for anonymous union in older GCC compilers
One of my tests compiles the kernel with gcc 4.5.3, and I hit the
following build error:
include/linux/semaphore.h: In function 'sema_init':
include/linux/semaphore.h:35:17: error: unknown field 'val' specified in initializer
include/linux/semaphore.h:35:17: warning: missing braces around initializer
include/linux/semaphore.h:35:17: warning: (near initialization for '(anonymous).raw_lock.<anonymous>.val')
I bisected it down to:
625e88be1f41 ("locking/qspinlock: Merge 'struct __qspinlock' into 'struct qspinlock'")
... which makes qspinlock have an anonymous union, which makes initializing it special
for older compilers. By adding strategic brackets, it makes the build
happy again.
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
Acked-by: Waiman Long <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra (Intel) <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Fixes: 625e88be1f41 ("locking/qspinlock: Merge 'struct __qspinlock' into 'struct qspinlock'")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions