[PATCH] checkpatch: don't warn for space after for_each_* macros

[Andi Kleen]

checkpatch: don't warn for space after for_each_* macros

for_each_possible_cpu and similar macros act like loops and it's natural
for them to be written like while () with a space before the paren.

Unfortunately checkpatch.pl warns about this:

WARNING: space prohibited between function name and open parenthesis '('
+       for_each_possible_cpu (cpu) {

Don't warn for all function names matching a reasonable for_each pattern.
    
 Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index bd88f11..c35eda2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1906,6 +1906,7 @@ sub process {
 				if|for|while|switch|return|case|
 				volatile|__volatile__|
 				__attribute__|format|__extension__|
+				([a-z]+_)?for_each_[a-z_]+|
 				asm|__asm__)$/x)
 			{
 
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