From: Jakub Sitnicki Date: Wed, 5 Nov 2025 20:19:41 +0000 (+0100) Subject: vlan: Make vlan_remove_tag return nothing X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b85be58e2f7cff47f7477ae61022644a198ee592;p=thirdparty%2Fkernel%2Flinux.git vlan: Make vlan_remove_tag return nothing All callers ignore the return value. Prepare to reorder memmove() after skb_pull() which is a common pattern. Signed-off-by: Jakub Sitnicki Signed-off-by: Martin KaFai Lau Link: https://patch.msgid.link/20251105-skb-meta-rx-path-v4-4-5ceb08a9b37b@cloudflare.com --- diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 15e01935d3fad..afa5cc61a0fa9 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -731,10 +731,8 @@ static inline void vlan_set_encap_proto(struct sk_buff *skb, * * Expects the skb to contain a VLAN tag in the payload, and to have skb->data * pointing at the MAC header. - * - * Returns: a new pointer to skb->data, or NULL on failure to pull. */ -static inline void *vlan_remove_tag(struct sk_buff *skb, u16 *vlan_tci) +static inline void vlan_remove_tag(struct sk_buff *skb, u16 *vlan_tci) { struct vlan_hdr *vhdr = (struct vlan_hdr *)(skb->data + ETH_HLEN); @@ -742,7 +740,7 @@ static inline void *vlan_remove_tag(struct sk_buff *skb, u16 *vlan_tci) memmove(skb->data + VLAN_HLEN, skb->data, 2 * ETH_ALEN); vlan_set_encap_proto(skb, vhdr); - return __skb_pull(skb, VLAN_HLEN); + __skb_pull(skb, VLAN_HLEN); } /**