From: Joe Perches <joe@perches.com>
Date: Fri, 5 Mar 2010 21:43:48 +0000 (-0800)
Subject: scripts/checkpatch.pl: add WARN on sizeof(&foo)
X-Git-Tag: v5.15~30377
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=8f53a9b80f011080555c498d2ca2dc6b1a77c42c;p=mirror_ubuntu-kernels.git

scripts/checkpatch.pl: add WARN on sizeof(&foo)

sizeof(&foo) is frequently an error.  Warn on its use.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
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 3257d3d96767..309050f30874 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2572,6 +2572,11 @@ sub process {
 			WARN("plain inline is preferred over $1\n" . $herecurr);
 		}
 
+# check for sizeof(&)
+		if ($line =~ /\bsizeof\s*\(\s*\&/) {
+			WARN("sizeof(& should be avoided\n" . $herecurr);
+		}
+
 # check for new externs in .c files.
 		if ($realfile =~ /\.c$/ && defined $stat &&
 		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)