checkpatch: do not warn about -p0 patches when checking files

We are triggering the -p0 check for our own diffs generated using --file
command line option.  Suppress this check for files.

Signed-off-by: Andy Whitcroft <apw@canonical.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 c71a0fae84df5a646d3bfb124937204c747035af..5ffc940399bef6cb8f9ba73e7b8e2559e75eac02 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1240,7 +1240,8 @@ sub process {
                        $realfile =~ s@^([^/]*)/@@;
 
                        $p1_prefix = $1;
-                       if ($tree && $p1_prefix ne '' && -e "$root/$p1_prefix") {
+                       if (!$file && $tree && $p1_prefix ne '' &&
+                           -e "$root/$p1_prefix") {
                                WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
                        }