bpf: Fix comment for helper bpf_current_task_under_cgroup()

commit 58617014405ad5c9f94f464444f4972dabb71ca7 upstream.

Fix the descriptions of the return values of helper bpf_current_task_under_cgroup().

Fixes: c6b5fb8690fa ("bpf: add documentation for eBPF helpers (42-50)")
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220310155335.1278783-1-hengqi.chen@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 7b107ab..e3fb5e5 100644 (file)
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -2276,8 +2276,8 @@ union bpf_attr {
  *     Return
  *             The return value depends on the result of the test, and can be:
  *
- *             * 0, if current task belongs to the cgroup2.
- *             * 1, if current task does not belong to the cgroup2.
+ *             * 1, if current task belongs to the cgroup2.
+ *             * 0, if current task does not belong to the cgroup2.
  *             * A negative error code, if an error occurred.
  *
  * long bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 791f31d..e2c8f94 100644 (file)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2276,8 +2276,8 @@ union bpf_attr {
  *     Return
  *             The return value depends on the result of the test, and can be:
  *
- *             * 0, if current task belongs to the cgroup2.
- *             * 1, if current task does not belong to the cgroup2.
+ *             * 1, if current task belongs to the cgroup2.
+ *             * 0, if current task does not belong to the cgroup2.
  *             * A negative error code, if an error occurred.
  *
  * long bpf_skb_change_tail(struct sk_buff *skb, u32 len, u64 flags)