checkpatch: warn on use of yield()

Using yield() is generally wrong. Warn on its use. Signed-off-by: Joe Perches <[email protected]> Cc: Andy Whitcroft <[email protected]> Cc: Peter Zijlstra <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
aryabinin · Mar 23, 2012 · 2c92488 · 2c92488
1 parent aad4f61
commit 2c92488
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
@@ -3338,6 +3338,12 @@ sub process {
 			     "__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
 		}
 
+# check for use of yield()
+		if ($line =~ /\byield\s*\(\s*\)/) {
+			WARN("YIELD",
+			     "Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n"  . $herecurr);
+		}
+
 # check for semaphores initialized locked
 		if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
 			WARN("CONSIDER_COMPLETION",