path: root/kernel/rcu/update.c
diff options
authorPaul Gortmaker <>2014-02-19 14:33:27 -0500
committerPaul E. McKenney <>2014-02-26 06:35:18 -0800
commit5cb5c6e18f822b19bd41a2c0f9930c82b3ec0bc9 (patch)
treea21be1e06444dfc2d4a8b3b35db4d241cb0ea70b /kernel/rcu/update.c
parent7a754743185a4b05818e10058fa2fbe4e6969085 (diff)
rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone
The kbuild test bot uncovered an implicit dependence on the trace header being present before rcu.h in ia64 allmodconfig that looks like this: In file included from kernel/ksysfs.c:22:0: kernel/rcu/rcu.h: In function '__rcu_reclaim': kernel/rcu/rcu.h:107:3: error: implicit declaration of function 'trace_rcu_invoke_kfree_callback' [-Werror=implicit-function-declaration] kernel/rcu/rcu.h:112:3: error: implicit declaration of function 'trace_rcu_invoke_callback' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors Looking at other rcu.h users, we can find that they all were sourcing the trace header in advance of rcu.h itself, as seen in the context of this diff. There were also some inconsistencies as to whether it was or wasn't sourced based on the parent tracing Kconfig. Rather than "fix" it at each use site, and have inconsistent use based on whether "#ifdef CONFIG_RCU_TRACE" was used or not, lets just source the trace header just once, in the actual consumer of it, which is rcu.h itself. We include it unconditionally, as build testing shows us that is a hard requirement for some files. Reported-by: kbuild test robot <> Signed-off-by: Paul Gortmaker <> Signed-off-by: Paul E. McKenney <>
Diffstat (limited to 'kernel/rcu/update.c')
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index fd0d5b5b8e7c..4c0a9b0af469 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -49,7 +49,6 @@
#include <linux/module.h>
-#include <trace/events/rcu.h>
#include "rcu.h"