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Commit b55cbc8d authored Oct 17, 2018 by Nicolas Dichtel Committed by Alexei Starovoitov Oct 17, 2018

bpf: fix doc of bpf_skb_adjust_room() in uapi



len_diff is signed.

Fixes: fa15601a ("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>

parent 44d520eb

include/uapi/linux/bpf.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1433,7 +1433,7 @@ union bpf_attr {
	* Return		* Return
	* 0 on success, or a negative error in case of failure.		* 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		* Description
	* Grow or shrink the room for data in the packet associated to		* Grow or shrink the room for data in the packet associated to
	* skb by len_diff, and according to the selected mode.		* skb by len_diff, and according to the selected mode.

tools/include/uapi/linux/bpf.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1433,7 +1433,7 @@ union bpf_attr {
	* Return		* Return
	* 0 on success, or a negative error in case of failure.		* 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		* Description
	* Grow or shrink the room for data in the packet associated to		* Grow or shrink the room for data in the packet associated to
	* skb by len_diff, and according to the selected mode.		* skb by len_diff, and according to the selected mode.