[PATCH 1/3] net: fix VLAN insert doc comment for shared-mbuf error code

[William Bland <blandwwa@gmail.com>]

The implementation returns -EINVAL when the mbuf is shared or
indirect, but the doc comment inaccurately stated -EPERM.

Fixes: c974021a5949 ("ether: add soft vlan encap/decap")

Signed-off-by: William Bland <blandwwa@gmail.com>
---
 lib/net/rte_ether.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/net/rte_ether.h b/lib/net/rte_ether.h
index c9a0b536c3..cb10d8fb06 100644
--- a/lib/net/rte_ether.h
+++ b/lib/net/rte_ether.h
@@ -387,7 +387,8 @@ static inline int rte_vlan_strip(struct rte_mbuf *m)
  *   The packet mbuf.
  * @return
  *   - 0: On success
- *   -EPERM: mbuf is shared overwriting would be unsafe
+ *   -EINVAL: overwriting would be unsafe because mbuf is shared or
+ *            indirect, or mbuf's first segment is too short
  *   -ENOSPC: not enough headroom in mbuf
  */
 static inline int rte_vlan_insert(struct rte_mbuf **m)
-- 
2.43.0