bpf: Fix two typos in uapi/linux/bpf.h

Also remove trailing whitespaces in bpf_skb_get_tunnel_key example code.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200821133642.18870-1-tklauser@distanz.ch

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 0480f89..b6238b2 100644 (file)
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -767,7 +767,7 @@ union bpf_attr {
  *
  *             Also, note that **bpf_trace_printk**\ () is slow, and should
  *             only be used for debugging purposes. For this reason, a notice
- *             bloc (spanning several lines) is printed to kernel logs and
+ *             block (spanning several lines) is printed to kernel logs and
  *             states that the helper should not be used "for production use"
  *             the first time this helper is used (or more precisely, when
  *             **trace_printk**\ () buffers are allocated). For passing values
@@ -1033,14 +1033,14 @@ union bpf_attr {
  *
  *                     int ret;
  *                     struct bpf_tunnel_key key = {};
- *                     
+ *
  *                     ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
  *                     if (ret < 0)
  *                             return TC_ACT_SHOT;     // drop packet
- *                     
+ *
  *                     if (key.remote_ipv4 != 0x0a000001)
  *                             return TC_ACT_SHOT;     // drop packet
- *                     
+ *
  *                     return TC_ACT_OK;               // accept packet
  *
  *             This interface can also be used with all encapsulation devices
@@ -1147,7 +1147,7 @@ union bpf_attr {
  *     Description
  *             Retrieve the realm or the route, that is to say the
  *             **tclassid** field of the destination for the *skb*. The
- *             indentifier retrieved is a user-provided tag, similar to the
+ *             identifier retrieved is a user-provided tag, similar to the
  *             one used with the net_cls cgroup (see description for
  *             **bpf_get_cgroup_classid**\ () helper), but here this tag is
  *             held by a route (a destination entry), not by a task.

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 0480f89..b6238b2 100644 (file)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -767,7 +767,7 @@ union bpf_attr {
  *
  *             Also, note that **bpf_trace_printk**\ () is slow, and should
  *             only be used for debugging purposes. For this reason, a notice
- *             bloc (spanning several lines) is printed to kernel logs and
+ *             block (spanning several lines) is printed to kernel logs and
  *             states that the helper should not be used "for production use"
  *             the first time this helper is used (or more precisely, when
  *             **trace_printk**\ () buffers are allocated). For passing values
@@ -1033,14 +1033,14 @@ union bpf_attr {
  *
  *                     int ret;
  *                     struct bpf_tunnel_key key = {};
- *                     
+ *
  *                     ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
  *                     if (ret < 0)
  *                             return TC_ACT_SHOT;     // drop packet
- *                     
+ *
  *                     if (key.remote_ipv4 != 0x0a000001)
  *                             return TC_ACT_SHOT;     // drop packet
- *                     
+ *
  *                     return TC_ACT_OK;               // accept packet
  *
  *             This interface can also be used with all encapsulation devices
@@ -1147,7 +1147,7 @@ union bpf_attr {
  *     Description
  *             Retrieve the realm or the route, that is to say the
  *             **tclassid** field of the destination for the *skb*. The
- *             indentifier retrieved is a user-provided tag, similar to the
+ *             identifier retrieved is a user-provided tag, similar to the
  *             one used with the net_cls cgroup (see description for
  *             **bpf_get_cgroup_classid**\ () helper), but here this tag is
  *             held by a route (a destination entry), not by a task.