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authorJoanne Koong <joannelkoong@gmail.com>2022-07-15 12:38:00 -0700
committerAlexei Starovoitov <ast@kernel.org>2022-07-19 09:57:04 -0700
commitbdb2bc7599298ebb677e40fc92b1fa9e69e05098 (patch)
tree9fbb9f38158be77f323aa016168c83f3fc2804b8 /tools/include
parenta1ac9fd6c6504aa1838930bbfae6217ab6b95945 (diff)
downloadlinux-bdb2bc7599298ebb677e40fc92b1fa9e69e05098.tar.gz
bpf: fix bpf_skb_pull_data documentation
Fix documentation for bpf_skb_pull_data() helper for
when len == 0.

Fixes: fa15601ab31e ("bpf: add documentation for eBPF helpers (33-41)")
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220715193800.3940070-1-joannelkoong@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/uapi/linux/bpf.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 379e68fb866f..ffcbf79a556b 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2361,7 +2361,8 @@ union bpf_attr {
  * 		Pull in non-linear data in case the *skb* is non-linear and not
  * 		all of *len* are part of the linear section. Make *len* bytes
  * 		from *skb* readable and writable. If a zero value is passed for
- * 		*len*, then the whole length of the *skb* is pulled.
+ *		*len*, then all bytes in the linear part of *skb* will be made
+ *		readable and writable.
  *
  * 		This helper is only needed for reading and writing with direct
  * 		packet access.