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authorOlof Johansson <olof@lixom.net>2012-09-05 15:33:19 -0700
committerOlof Johansson <olof@lixom.net>2012-09-05 15:33:19 -0700
commit301fd5c13257862df66c81c48d963d474e63e0ef (patch)
tree128af89336dd8b1ee62696c4588057b2eb0b445e /net/core/dst.c
parentdaa56a06b5a592ceb69130a1d15c067a078f2701 (diff)
parent7952717adb69efc1d2443a1858f96d23c2fb93e0 (diff)
Merge branch 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
* 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: kzm9g: enable restarting + sync to 3.6-rc3
Diffstat (limited to 'net/core/dst.c')
-rw-r--r--net/core/dst.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/net/core/dst.c b/net/core/dst.c
index 069d51d2941..56d63612e1e 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -149,7 +149,15 @@ int dst_discard(struct sk_buff *skb)
}
EXPORT_SYMBOL(dst_discard);
-const u32 dst_default_metrics[RTAX_MAX];
+const u32 dst_default_metrics[RTAX_MAX + 1] = {
+ /* This initializer is needed to force linker to place this variable
+ * into const section. Otherwise it might end into bss section.
+ * We really want to avoid false sharing on this variable, and catch
+ * any writes on it.
+ */
+ [RTAX_MAX] = 0xdeadbeef,
+};
+
void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
int initial_ref, int initial_obsolete, unsigned short flags)