bpf, net: Introduce skb_pointer_if_linear().

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Network drivers always call skb_header_pointer() with non-null buffer.
Remove !buffer check to prevent accidental misuse of skb_header_pointer().
Introduce skb_pointer_if_linear() instead.

Reported-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230718234021.43640-1-alexei.starovoitov@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Alexei Starovoitov 2023-07-18 16:40:21 -07:00

parent 41ee0145a4

commit 6f5a630d7c

2 changed files with 13 additions and 2 deletions

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10

include/linux/skbuff.h

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5

kernel/bpf/helpers.c

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