diff options
| author | Florian Westphal <fw@strlen.de> | 2019-05-31 19:27:09 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-03 04:08:36 +0300 |
| commit | 2638eb8b50cfc16240e0bb080b9afbf541a9b39d (patch) | |
| tree | 84264a6f50aaedfac6854bef3d5972926d321c10 /drivers/infiniband/hw/i40iw | |
| parent | cb8f1478cea68bc9c9bca8bded9617d9b0b7beb6 (diff) | |
| download | linux-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/infiniband/hw/i40iw')
| -rw-r--r-- | drivers/infiniband/hw/i40iw/i40iw_utils.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c index 337410f40860..016524683e17 100644 --- a/drivers/infiniband/hw/i40iw/i40iw_utils.c +++ b/drivers/infiniband/hw/i40iw/i40iw_utils.c @@ -174,10 +174,14 @@ int i40iw_inetaddr_event(struct notifier_block *notifier, rcu_read_lock(); in = __in_dev_get_rcu(upper_dev); - if (!in->ifa_list) - local_ipaddr = 0; - else - local_ipaddr = ntohl(in->ifa_list->ifa_address); + local_ipaddr = 0; + if (in) { + struct in_ifaddr *ifa; + + ifa = rcu_dereference(in->ifa_list); + if (ifa) + local_ipaddr = ntohl(ifa->ifa_address); + } rcu_read_unlock(); } else { |