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bpf: fix doc of bpf_skb_adjust_room() in uapi

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len_diff is signed.

Fixes: fa15601ab3 ("bpf: add documentation for eBPF helpers (33-41)")
CC: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Nicolas Dichtel 2018-10-17 16:24:48 +02:00 committed by Alexei Starovoitov
parent 44d520eb17
commit b55cbc8d9b
2 changed files with 2 additions and 2 deletions
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2
include/uapi/linux/bpf.h
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@ -1433,7 +1433,7 @@ union bpf_attr {
* Return
* 0 on success, or a negative error in case of failure.
*
* int bpf_skb_adjust_room(struct sk_buff *skb, u32 len_diff, u32 mode, u64 flags)
* int bpf_skb_adjust_room(struct sk_buff *skb, s32 len_diff, u32 mode, u64 flags)
* Description
* Grow or shrink the room for data in the packet associated to
* *skb* by *len_diff*, and according to the selected *mode*.

2
tools/include/uapi/linux/bpf.h
View File

@ -1433,7 +1433,7 @@ union bpf_attr {
* Return
* 0 on success, or a negative error in case of failure.
*
* int bpf_skb_adjust_room(struct sk_buff *skb, u32 len_diff, u32 mode, u64 flags)
* int bpf_skb_adjust_room(struct sk_buff *skb, s32 len_diff, u32 mode, u64 flags)
* Description
* Grow or shrink the room for data in the packet associated to
* *skb* by *len_diff*, and according to the selected *mode*.