net: comment fixes against BPF devmap helper calls (56ce097c) · Commits · 戴 / test

Update BPF comments to accurately reflect XDP usage. Fixes: ("bpf: add bpf_redirect_map helper routine") Reported-by:

include/uapi/linux/bpf.h

+11 −5

Original line number	Diff line number	Diff line
		@@ -345,14 +345,20 @@ union bpf_attr {
		* int bpf_redirect(ifindex, flags)
		* redirect to another netdev
		* @ifindex: ifindex of the net device
		* @flags: bit 0 - if set, redirect to ingress instead of egress
		* @flags:
		* cls_bpf:
		* bit 0 - if set, redirect to ingress instead of egress
		* other bits - reserved
		* Return: TC_ACT_REDIRECT
		* int bpf_redirect_map(key, map, flags)
		* xdp_bpf:
		* all bits - reserved
		* Return: cls_bpf: TC_ACT_REDIRECT on success or TC_ACT_SHOT on error
		* xdp_bfp: XDP_REDIRECT on success or XDP_ABORT on error
		* int bpf_redirect_map(map, key, flags)
		* redirect to endpoint in map
		* @map: pointer to dev map
		* @key: index in map to lookup
		* @map: fd of map to do lookup in
		* @flags: --
		* Return: XDP_REDIRECT on success or XDP_ABORT on error
		*
		* u32 bpf_get_route_realm(skb)
		* retrieve a dst's tclassid