diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2023-05-17 15:10:54 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-06-09 17:44:15 -0700 |
| commit | ff7138813ac4a20628ce4b40952c69faba835fbb (patch) | |
| tree | 378fb81a8a2dcc64978ce15762a2741175d25f29 /kernel/locking | |
| parent | 6b76ca2ab917185b63ded3d7f85bbf9998ab939e (diff) | |
locking: add lockevent_read() prototype
lockevent_read() has a __weak definition and the only caller in
kernel/locking/lock_events.c, plus a strong definition in qspinlock_stat.h
that overrides it, but no other declaration. This causes a W=1 warning:
kernel/locking/lock_events.c:61:16: error: no previous prototype for 'lockevent_read' [-Werror=missing-prototypes]
Add shared prototype to avoid the warnings.
Link: https://lkml.kernel.org/r/20230517131102.934196-7-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Eric Paris <eparis@redhat.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/lock_events.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/locking/lock_events.h b/kernel/locking/lock_events.h index 8c7e7d25f09c..a6016b91803d 100644 --- a/kernel/locking/lock_events.h +++ b/kernel/locking/lock_events.h @@ -57,4 +57,8 @@ static inline void __lockevent_add(enum lock_events event, int inc) #define lockevent_cond_inc(ev, c) #endif /* CONFIG_LOCK_EVENT_COUNTS */ + +ssize_t lockevent_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); + #endif /* __LOCKING_LOCK_EVENTS_H */ |