netdev - [net-next PATCH v2 1/4] net: sched: fix unsued cpu variable

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:	Mon, 15 Sep 2014 23:30:26 -0700
From:	John Fastabend <john.fastabend@...il.com>
To:	xiyou.wangcong@...il.com, davem@...emloft.net,
	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, jhs@...atatu.com
Subject: [net-next PATCH v2 1/4] net: sched: fix unsued cpu variable

kbuild test robot reported an unused variable cpu in cls_u32.c
after the patch below. This happens when PERF and MARK config
variables are disabled

Fix this is to use separate variables for perf and mark
and define the cpu variable inside the ifdef logic.

'commit 459d5f626da7 ("net: sched: make cls_u32 per cpu")'

Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---
 net/sched/cls_u32.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 5ed5ac4..8cffe5a 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -788,8 +788,8 @@ static int u32_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
 	} else {
 #ifdef CONFIG_CLS_U32_PERF
 		struct tc_u32_pcnt *gpf;
-#endif
 		int cpu;
+#endif
 
 		if (nla_put(skb, TCA_U32_SEL,
 			    sizeof(n->sel) + n->sel.nkeys*sizeof(struct tc_u32_key),
@@ -816,9 +816,10 @@ static int u32_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
 			struct tc_u32_mark mark = {.val = n->val,
 						   .mask = n->mask,
 						   .success = 0};
+			int cpum;
 
-			for_each_possible_cpu(cpu) {
-				__u32 cnt = *per_cpu_ptr(n->pcpu_success, cpu);
+			for_each_possible_cpu(cpum) {
+				__u32 cnt = *per_cpu_ptr(n->pcpu_success, cpum);
 
 				mark.success += cnt;
 			}

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html