Add __rcu annotation to the contents of enter/exit_syscall_files to
signify that they're protected by rcu and to silence the following
sparse warnings when CONFIG_SPARSE_RCU_POINTER=y:
kernel/trace/trace_syscalls.c:320:23: error: incompatible types in
comparison expression (different address spaces)
kernel/trace/trace_syscalls.c:368:23: error: incompatible types in
comparison expression (different address spaces)
Signed-off-by: Tom Zanussi <tom.zanu...@linux.intel.com>
Reported-by: Fengguang Wu <fengguang...@intel.com>
---
kernel/trace/trace.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 11a04d6..7ca1993 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -192,8 +192,8 @@ struct trace_array {
#ifdef CONFIG_FTRACE_SYSCALLS
int sys_refcount_enter;
int sys_refcount_exit;
- struct ftrace_event_file *enter_syscall_files[NR_syscalls];
- struct ftrace_event_file *exit_syscall_files[NR_syscalls];
+ struct ftrace_event_file __rcu *enter_syscall_files[NR_syscalls];
+ struct ftrace_event_file __rcu *exit_syscall_files[NR_syscalls];
#endif
int stop_count;
int clock_id;
--
1.8.3.1
--
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