netdev - [PATCH] net: make xfrm_statistics_seq_show use generic snmp_fold

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Date:	Mon, 29 Dec 2008 13:22:47 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	netdev@...r.kernel.org
Cc:	Masahide NAKAMURA <nakam@...ux-ipv6.org>
Subject: [PATCH] net: make xfrm_statistics_seq_show use generic snmp_fold_field

No reason to roll our own here.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>

diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c
--- a/net/xfrm/xfrm_proc.c
+++ b/net/xfrm/xfrm_proc.c
@@ -44,27 +44,14 @@ static struct snmp_mib xfrm_mib_list[] =
 	SNMP_MIB_SENTINEL
 };
 
-static unsigned long
-fold_field(void *mib[], int offt)
-{
-        unsigned long res = 0;
-        int i;
-
-        for_each_possible_cpu(i) {
-                res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
-                res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
-        }
-        return res;
-}
-
 static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
 {
 	struct net *net = seq->private;
 	int i;
 	for (i=0; xfrm_mib_list[i].name; i++)
 		seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
-			   fold_field((void **)net->mib.xfrm_statistics,
-				      xfrm_mib_list[i].entry));
+			   snmp_fold_field((void **)net->mib.xfrm_statistics,
+					   xfrm_mib_list[i].entry));
 	return 0;
 }
 
.