tracing: Annotate ftrace_graph_hash pointer with __rcu
authorAmol Grover <frextrite@gmail.com>
Sat, 1 Feb 2020 07:27:04 +0000 (12:57 +0530)
committerSteven Rostedt (VMware) <rostedt@goodmis.org>
Wed, 5 Feb 2020 22:14:26 +0000 (17:14 -0500)
commit24a9729f831462b1d9d61dc85ecc91c59037243f
tree5dba5453c90b039bac3afe99f4d2d25fd6f4200a
parent7495e0926fdf302cb9e62a49f7c22198815624cd
tracing: Annotate ftrace_graph_hash pointer with __rcu

Fix following instances of sparse error
kernel/trace/ftrace.c:5664:29: error: incompatible types in comparison
kernel/trace/ftrace.c:5785:21: error: incompatible types in comparison
kernel/trace/ftrace.c:5864:36: error: incompatible types in comparison
kernel/trace/ftrace.c:5866:25: error: incompatible types in comparison

Use rcu_dereference_protected to access the __rcu annotated pointer.

Link: http://lkml.kernel.org/r/20200201072703.17330-1-frextrite@gmail.com
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Amol Grover <frextrite@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
kernel/trace/ftrace.c
kernel/trace/trace.h