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net: ethtool: move checks before rtnl_lock() in ethnl_set_rings
authorJie Wang <wangjie125@huawei.com>
Tue, 12 Apr 2022 02:01:20 +0000 (10:01 +0800)
committerJakub Kicinski <kuba@kernel.org>
Fri, 15 Apr 2022 18:41:45 +0000 (11:41 -0700)
commit89f08ee59d7f2c1954d6628b56f7109b95328d2e
tree5106c0fc4f46524cfc3d69f19c991ff4dad3de50tree | snapshot
parent7b9a74105276432a8cbf339079e4988033e531bfcommit | diff
net: ethtool: move checks before rtnl_lock() in ethnl_set_rings

Currently these two checks in ethnl_set_rings are added after rtnl_lock()
which will do useless works if the request is invalid.

So this patch moves these checks before the rtnl_lock() to avoid these
costs.

Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/ethtool/rings.c diff | blob | history
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