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-Tag: sz_174~16
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=75faafd41c3c6312b7df51ce8cda5ba84495a8f1;hp=bf79e89ad51e35bdeac78cc882648b9b8faae716

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 0dfb34a5b53c..a417c115805d 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();
 	}
 }