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| author | Tariq Toukan <tariqt@nvidia.com> | 2022-05-04 11:09:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-18 10:18:05 +0300 |
| commit | 39eb33b68f9ca8dbca94771cd8b1d29648229bb3 (patch) | |
| tree | 5caa2499faf35d4a9ae925ac63b59dc5255b5b86 /include/linux | |
| parent | 5ed837a7e05bcba72bdcd86b12547ea5b796cc01 (diff) | |
| download | linux-39eb33b68f9ca8dbca94771cd8b1d29648229bb3.tar.xz | |
net: Fix features skip in for_each_netdev_feature()
[ Upstream commit 85db6352fc8a158a893151baa1716463d34a20d0 ]
The find_next_netdev_feature() macro gets the "remaining length",
not bit index.
Passing "bit - 1" for the following iteration is wrong as it skips
the adjacent bit. Pass "bit" instead.
Fixes: 3b89ea9c5902 ("net: Fix for_each_netdev_feature on Big endian")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://lore.kernel.org/r/20220504080914.1918-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdev_features.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index de123f436f1a..3a308bf98fc3 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -145,7 +145,7 @@ enum { #define NETIF_F_HW_ESP_TX_CSUM __NETIF_F(HW_ESP_TX_CSUM) #define NETIF_F_RX_UDP_TUNNEL_PORT __NETIF_F(RX_UDP_TUNNEL_PORT) -/* Finds the next feature with the highest number of the range of start till 0. +/* Finds the next feature with the highest number of the range of start-1 till 0. */ static inline int find_next_netdev_feature(u64 feature, unsigned long start) { @@ -164,7 +164,7 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start) for ((bit) = find_next_netdev_feature((mask_addr), \ NETDEV_FEATURE_COUNT); \ (bit) >= 0; \ - (bit) = find_next_netdev_feature((mask_addr), (bit) - 1)) + (bit) = find_next_netdev_feature((mask_addr), (bit))) /* Features valid for ethtool to change */ /* = all defined minus driver/device-class-related */ |