nl80211: don't hold RTNL in color change request
authorJohannes Berg <johannes.berg@intel.com>
Thu, 14 Apr 2022 12:04:02 +0000 (14:04 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Jun 2022 08:22:53 +0000 (10:22 +0200)
[ Upstream commit 1b550a0bebfc0b69d6ec08fe6eb58953a8aec48a ]

It's not necessary to hold the RTNL across color change
requests, since all the inner locking needs only the
wiphy mutex which we already hold as well.

Fixes: 0d2ab3aea50b ("nl80211: add support for BSS coloring")
Link: https://lore.kernel.org/r/20220414140402.32e03e8c261b.I5e7dc6bc563a129b938c43298da6bb4e812400a5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/wireless/nl80211.c

index dafa2c5b71a46afbdd88b26945f1a921983c319f..bb46a6a346146a52a93d1526cbddacca6625f750 100644 (file)
@@ -15936,8 +15936,7 @@ static const struct genl_small_ops nl80211_small_ops[] = {
                .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
                .doit = nl80211_color_change,
                .flags = GENL_UNS_ADMIN_PERM,
-               .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-                                 NL80211_FLAG_NEED_RTNL,
+               .internal_flags = NL80211_FLAG_NEED_NETDEV_UP,
        },
 };