From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 6 Jan 2009 22:41:25 +0000 (-0800)
Subject: checkpatch: try to catch missing VMLINUX_SYMBOL() in vmlinux.lds.h
X-Git-Tag: v2.6.29-rc1~342
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=080ba929651a32f1840751d2b862e64c8ee1f0c6;p=linux-2.6-omap-h63xx.git

checkpatch: try to catch missing VMLINUX_SYMBOL() in vmlinux.lds.h

Seems like every other release we have someone who updates vmlinux.lds.h
and adds C-visible symbols without VMLINUX_SYMBOL() around them.  So start
checking the file and reject assignments which have plain symbols on
either side.

[apw@canonical.com: soften the check, add tests]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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 5c7fd1a4f93..705a0439b39 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2224,6 +2224,15 @@ sub process {
 			}
 		}
 
+# make sure symbols are always wrapped with VMLINUX_SYMBOL() ...
+# all assignments may have only one of the following with an assignment:
+#	.
+#	ALIGN(...)
+#	VMLINUX_SYMBOL(...)
+		if ($realfile eq 'vmlinux.lds.h' && $line =~ /(?:(?:^|\s)$Ident\s*=|=\s*$Ident(?:\s|$))/) {
+			WARN("vmlinux.lds.h needs VMLINUX_SYMBOL() around C-visible symbols\n" . $herecurr);
+		}
+
 # check for redundant bracing round if etc
 		if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
 			my ($level, $endln, @chunks) =