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authorMagnus Karlsson <magnus.karlsson@intel.com>2024-02-07 09:47:36 +0100
committerJakub Kicinski <kuba@kernel.org>2024-02-09 03:39:59 +0100
commit9b0ed890ac2ae233efd8b27d11aee28a19437bb8 (patch)
treeecd46097fa59eaaffacf7f5b533f081cbd8a6ca3 /drivers/net/bonding/bond_main.c
parentnet/handshake: Fix handshake_req_destroy_test1 (diff)
downloadlinux-9b0ed890ac2ae233efd8b27d11aee28a19437bb8.tar.xz
linux-9b0ed890ac2ae233efd8b27d11aee28a19437bb8.zip
bonding: do not report NETDEV_XDP_ACT_XSK_ZEROCOPY
Do not report the XDP capability NETDEV_XDP_ACT_XSK_ZEROCOPY as the bonding driver does not support XDP and AF_XDP in zero-copy mode even if the real NIC drivers do. Note that the driver used to report everything as supported before a device was bonded. Instead of just masking out the zero-copy support from this, have the driver report that no XDP feature is supported until a real device is bonded. This seems to be more truthful as it is the real drivers that decide what XDP features are supported. Fixes: cb9e6e584d58 ("bonding: add xdp_features support") Reported-by: Prashant Batra <prbatra.mail@gmail.com> Link: https://lore.kernel.org/all/CAJ8uoz2ieZCopgqTvQ9ZY6xQgTbujmC6XkMTamhp68O-h_-rLg@mail.gmail.com/T/ Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20240207084737.20890-1-magnus.karlsson@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
-rw-r--r--drivers/net/bonding/bond_main.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4e0600c7b050..a11748b8d69b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1819,6 +1819,8 @@ void bond_xdp_set_features(struct net_device *bond_dev)
bond_for_each_slave(bond, slave, iter)
val &= slave->dev->xdp_features;
+ val &= ~NETDEV_XDP_ACT_XSK_ZEROCOPY;
+
xdp_set_features_flag(bond_dev, val);
}
@@ -5909,9 +5911,6 @@ void bond_setup(struct net_device *bond_dev)
if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP)
bond_dev->features |= BOND_XFRM_FEATURES;
#endif /* CONFIG_XFRM_OFFLOAD */
-
- if (bond_xdp_check(bond))
- bond_dev->xdp_features = NETDEV_XDP_ACT_MASK;
}
/* Destroy a bonding device.