From: Amerigo Wang <amwang@redhat.com>
Date: Wed, 10 Jun 2009 19:48:23 +0000 (-0700)
Subject: kbuild: fix a compile warning
X-Git-Tag: v2.6.31-rc1~335^2~7
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d067aa741589a9783cc43315119e0f431b4e382c;p=linux.git

kbuild: fix a compile warning

gcc-4.4.1:

 HOSTCC  scripts/basic/fixdep
scripts/basic/fixdep.c: In function 'traps':
scripts/basic/fixdep.c:377: warning: dereferencing type-punned pointer will break strict-aliasing rules
scripts/basic/fixdep.c:379: warning: dereferencing type-punned pointer will break strict-aliasing rules

(Apparently -fno-strict-aliasing will fix this too)

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---

diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 8912c0f5460b..72c15205bb2b 100644
--- a/scripts/basic/fixdep.c
+++ b/scripts/basic/fixdep.c
@@ -373,10 +373,11 @@ void print_deps(void)
 void traps(void)
 {
 	static char test[] __attribute__((aligned(sizeof(int)))) = "CONF";
+	int *p = (int *)test;
 
-	if (*(int *)test != INT_CONF) {
+	if (*p != INT_CONF) {
 		fprintf(stderr, "fixdep: sizeof(int) != 4 or wrong endianess? %#x\n",
-			*(int *)test);
+			*p);
 		exit(2);
 	}
 }