bpf: fix bpf_skb_pull_data documentation

Fix documentation for bpf_skb_pull_data() helper for when len == 0.

Joanne Koong committed 4 years ago

Commit bdb2bc71 parent a1ac9fd2 files · +4 −2Browse files

Unified · Split

2 files

include/uapi/linux/bpf.h +2 −1
tools/include/uapi/linux/bpf.h +2 −1

include/uapi/linux/bpf.h+2−1

@@ -2361,7 +2361,8 @@ union bpf_attr { · 2360 unmodified lines
2361	2361	* Pull in non-linear data in case the skb is non-linear and not
2362	2362	* all of len are part of the linear section. Make len bytes
2363	2363	* from skb readable and writable. If a zero value is passed for
2364		− * len, then the whole length of the skb is pulled.
	2364	+ * len, then all bytes in the linear part of skb will be made
	2365	+ * readable and writable.
2365	2366	*
2366	2367	* This helper is only needed for reading and writing with direct
2367	2368	* packet access.

tools/include/uapi/linux/bpf.h+2−1

@@ -2361,7 +2361,8 @@ union bpf_attr { · 2360 unmodified lines
2361	2361	* Pull in non-linear data in case the skb is non-linear and not
2362	2362	* all of len are part of the linear section. Make len bytes
2363	2363	* from skb readable and writable. If a zero value is passed for
2364		− * len, then the whole length of the skb is pulled.
	2364	+ * len, then all bytes in the linear part of skb will be made
	2365	+ * readable and writable.
2365	2366	*
2366	2367	* This helper is only needed for reading and writing with direct
2367	2368	* packet access.