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netdev: preserve NETIF_F_ALL_FOR_ALL across TSO updates

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[ Upstream commit 02d1e1a3f9239cdb3ecf2c6d365fb959d1bf39df ]

Directly increment the TSO features incurs a side effect: it will also
directly clear the flags in NETIF_F_ALL_FOR_ALL on the master device,
which can cause issues such as the inability to enable the nocache copy
feature on the bonding driver.

The fix is to include NETIF_F_ALL_FOR_ALL in the update mask, thereby
preventing it from being cleared.

Fixes: b0ce3508b2 ("bonding: allow TSO being set on bonding master")
Signed-off-by: Di Zhu <zhud@hygon.cn>
Link: https://patch.msgid.link/20251224012224.56185-1-zhud@hygon.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Di Zhu
2025-12-24 09:22:24 +08:00
committed by Greg Kroah-Hartman
parent 582a5e922a
commit 0ab968d9c5
1 changed files with 2 additions and 1 deletions
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3
include/linux/netdevice.h
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@@ -4998,7 +4998,8 @@ netdev_features_t netdev_increment_features(netdev_features_t all,
static inline netdev_features_t netdev_add_tso_features(netdev_features_t features,
netdev_features_t mask)
{
return netdev_increment_features(features, NETIF_F_ALL_TSO, mask);
return netdev_increment_features(features, NETIF_F_ALL_TSO |
NETIF_F_ALL_FOR_ALL, mask);
}
int __netdev_update_features(struct net_device *dev);