diff options
| author | Florian Westphal <fw@strlen.de> | 2022-08-07 14:53:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:18:24 +0300 |
| commit | f4f2acf01298e8f6f70d6947aefd700fcd19105b (patch) | |
| tree | a1af00971d2b95f36360ce1f6a4d7d34b442cd1a | |
| parent | 85b5747321ed047d4cf43bd224197351ee982ef0 (diff) | |
| download | linux-f4f2acf01298e8f6f70d6947aefd700fcd19105b.tar.xz | |
plip: avoid rcu debug splat
commit bc3c8fe3c79bcdae4d90e3726054fac5cca8ac32 upstream.
WARNING: suspicious RCU usage
5.2.0-rc2-00605-g2638eb8b50cfc #1 Not tainted
drivers/net/plip/plip.c:1110 suspicious rcu_dereference_check() usage!
plip_open is called with RTNL held, switch to the correct helper.
Fixes: 2638eb8b50cf ("net: ipv4: provide __rcu annotation for ifa_list")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20220807115304.13257-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/plip/plip.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c index e89cdebae6f1..e8b7d596d749 100644 --- a/drivers/net/plip/plip.c +++ b/drivers/net/plip/plip.c @@ -1103,7 +1103,7 @@ 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(). */ - const struct in_ifaddr *ifa = rcu_dereference(in_dev->ifa_list); + const struct in_ifaddr *ifa = rtnl_dereference(in_dev->ifa_list); if (ifa != NULL) { memcpy(dev->dev_addr+2, &ifa->ifa_local, 4); } |