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bpf, xdp: constify some bpf_prog * function arguments

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In lots of places, bpf_prog pointer is used only for tracing or other
stuff that doesn't modify the structure itself. Same for net_device.
Address at least some of them and add `const` attributes there. The
object code didn't change, but that may prevent unwanted data
modifications and also allow more helpers to have const arguments.

Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alexander Lobakin
2024-12-03 18:37:25 +01:00
committed by Jakub Kicinski
parent ca5c94949f
commit 7cd1107f48
8 changed files with 41 additions and 37 deletions
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include/linux/skbuff.h
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@@ -3627,7 +3627,7 @@ static inline netmem_ref skb_frag_netmem(const skb_frag_t *frag)
int skb_pp_cow_data(struct page_pool *pool, struct sk_buff **pskb,
unsigned int headroom);
int skb_cow_data_for_xdp(struct page_pool *pool, struct sk_buff **pskb,
struct bpf_prog *prog);
const struct bpf_prog *prog);
/**
* skb_frag_address - gets the address of the data contained in a paged fragment