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authorFlorian Westphal <fw@strlen.de>2019-05-31 19:27:09 +0300
committerDavid S. Miller <davem@davemloft.net>2019-06-03 04:08:36 +0300
commit2638eb8b50cfc16240e0bb080b9afbf541a9b39d (patch)
tree84264a6f50aaedfac6854bef3d5972926d321c10 /drivers/net/plip
parentcb8f1478cea68bc9c9bca8bded9617d9b0b7beb6 (diff)
downloadlinux-2638eb8b50cfc16240e0bb080b9afbf541a9b39d.tar.xz
net: ipv4: provide __rcu annotation for ifa_list
ifa_list is protected by rcu, yet code doesn't reflect this. Add the __rcu annotations and fix up all places that are now reported by sparse. I've done this in the same commit to not add intermediate patches that result in new warnings. Reported-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/plip')
-rw-r--r--drivers/net/plip/plip.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c
index feb92ecd1880..3e3ac2e496a1 100644
--- a/drivers/net/plip/plip.c
+++ b/drivers/net/plip/plip.c
@@ -1012,7 +1012,7 @@ plip_rewrite_address(const struct net_device *dev, struct ethhdr *eth)
in_dev = __in_dev_get_rcu(dev);
if (in_dev) {
/* Any address will do - we take the first */
- const struct in_ifaddr *ifa = in_dev->ifa_list;
+ const struct in_ifaddr *ifa = rcu_dereference(in_dev->ifa_list);
if (ifa) {
memcpy(eth->h_source, dev->dev_addr, ETH_ALEN);
memset(eth->h_dest, 0xfc, 2);
@@ -1107,7 +1107,7 @@ plip_open(struct net_device *dev)
/* Any address will do - we take the first. We already
have the first two bytes filled with 0xfc, from
plip_init_dev(). */
- struct in_ifaddr *ifa=in_dev->ifa_list;
+ const struct in_ifaddr *ifa = rcu_dereference(in_dev->ifa_list);
if (ifa != NULL) {
memcpy(dev->dev_addr+2, &ifa->ifa_local, 4);
}