checkpatch: don't complain about BIT macro in uapi

BIT macro cannot be exported to UAPI, don't complain about it.

Link: http://lkml.kernel.org/r/1468707033-16173-1-git-send-email-tomas.winkler@intel.com
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7a28775274a5243567f880ebf36b9d96bcb37db9..77915e095022bb805c6e9428da93d4b37f83eff3 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5732,8 +5732,9 @@ sub process {
                        }
                }
 
-# check for #defines like: 1 << <digit> that could be BIT(digit)
-               if ($line =~ /#\s*define\s+\w+\s+\(?\s*1\s*([ulUL]*)\s*\<\<\s*(?:\d+|$Ident)\s*\)?/) {
+# check for #defines like: 1 << <digit> that could be BIT(digit), it is not exported to uapi
+               if ($realfile !~ m@^include/uapi/@ &&
+                   $line =~ /#\s*define\s+\w+\s+\(?\s*1\s*([ulUL]*)\s*\<\<\s*(?:\d+|$Ident)\s*\)?/) {
                        my $ull = "";
                        $ull = "_ULL" if (defined($1) && $1 =~ /ll/i);
                        if (CHK("BIT_MACRO",