linux-kernel - [Patch] kbuild: fix a compile warning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 15 May 2009 03:51:18 -0400
From:	Amerigo Wang <amwang@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, Amerigo Wang <amwang@...hat.com>,
	Sam Ravnborg <sam@...nborg.org>
Subject: [Patch] kbuild: fix a compile warning


I got this warning:

 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

Patch below fixes it.

Signed-off-by: WANG Cong <amwang@...hat.com>
Cc: Sam Ravnborg <sam@...nborg.org> 

---
diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c
index 8912c0f..72c1520 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);
 	}
 }
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/