From: Jan Beulich <JBeulich@suse.com>
Date: Wed, 7 Mar 2012 23:45:44 +0000 (+0000)
Subject: netfilter: xt_LOG: don't use xchg() for simple assignment
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f3d229c68bb47170f04f81e51c9ed5d4286cebdb;p=linux-beck.git

netfilter: xt_LOG: don't use xchg() for simple assignment

At least on ia64 the (bogus) use of xchg() here results in the compiler
warning about an unused expression result. As only an assignment is
intended here, convert it to such.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/include/net/netfilter/xt_log.h b/include/net/netfilter/xt_log.h
index 7e1544e8f70d..9d9756cca013 100644
--- a/include/net/netfilter/xt_log.h
+++ b/include/net/netfilter/xt_log.h
@@ -47,7 +47,7 @@ static void sb_close(struct sbuff *m)
 	if (likely(m != &emergency))
 		kfree(m);
 	else {
-		xchg(&emergency_ptr, m);
+		emergency_ptr = m;
 		local_bh_enable();
 	}
 }