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authorRandy Dunlap <rdunlap@infradead.org>2020-02-25 21:09:19 -0800
committerPaul E. McKenney <paulmck@kernel.org>2020-04-27 11:05:13 -0700
commitbe44ae62431196ac2a55198c0855028fff3ccfb4 (patch)
tree4cc904ccdefee4d8037f1024fdab18268424d7eb /include/linux/torture.h
parentc9527bebb017b891d1a2bbb96217bd5225488a0e (diff)
locktorture.c: Fix if-statement empty body warnings
When using -Wextra, gcc complains about torture_preempt_schedule() when its definition is empty (i.e., when CONFIG_PREEMPTION is not set/enabled). Fix these warnings by adding an empty do-while block for that macro when CONFIG_PREEMPTION is not set. Fixes these build warnings: ../kernel/locking/locktorture.c:119:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ../kernel/locking/locktorture.c:166:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ../kernel/locking/locktorture.c:337:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ../kernel/locking/locktorture.c:490:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ../kernel/locking/locktorture.c:528:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ../kernel/locking/locktorture.c:553:29: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] I have verified that there is no object code change (with gcc 7.5.0). Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Josh Triplett <josh@joshtriplett.org> Signed-off-by: "Paul E. McKenney" <paulmck@kernel.org>
Diffstat (limited to 'include/linux/torture.h')
-rw-r--r--include/linux/torture.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/torture.h b/include/linux/torture.h
index 6241f59e2d6f..629b66e6c161 100644
--- a/include/linux/torture.h
+++ b/include/linux/torture.h
@@ -89,7 +89,7 @@ void _torture_stop_kthread(char *m, struct task_struct **tp);
#ifdef CONFIG_PREEMPTION
#define torture_preempt_schedule() preempt_schedule()
#else
-#define torture_preempt_schedule()
+#define torture_preempt_schedule() do { } while (0)
#endif
#endif /* __LINUX_TORTURE_H */