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net: refactor ->ndo_bpf calls into dev_xdp_propagate

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When net devices propagate xdp configurations to slave devices,
we will need to perform a memory provider check to ensure we're
not binding xdp to a device using unreadable netmem.

Currently the ->ndo_bpf calls in a few places. Adding checks to all
these places would not be ideal.

Refactor all the ->ndo_bpf calls into one place where we can add this
check in the future.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mina Almasry
2024-08-22 05:51:54 +00:00
committed by David S. Miller
parent f9db28bb09
commit 7d3aed652d
4 changed files with 15 additions and 5 deletions
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include/linux/netdevice.h
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@@ -3925,6 +3925,7 @@ struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
int bpf_xdp_link_attach(const union bpf_attr *attr, struct bpf_prog *prog);
u8 dev_xdp_prog_count(struct net_device *dev);
int dev_xdp_propagate(struct net_device *dev, struct netdev_bpf *bpf);
u32 dev_xdp_prog_id(struct net_device *dev, enum bpf_xdp_mode mode);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);