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authorJakub Kicinski <kuba@kernel.org>2024-05-09 09:59:29 -0700
committerJakub Kicinski <kuba@kernel.org>2024-05-09 10:01:01 -0700
commite7073830cc8b52ef3df7dd150e4dac7706e0e104 (patch)
treee257cb163ac414e82acf319ab8cdd98ad4434036 /include/linux/skbuff.h
parent628bc3e5a1beae395b5b515998396c60559ed3a9 (diff)
parent8c3b7565f81e030ef448378acd1b35dabb493e3b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts. Adjacent changes: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c 35d92abfbad8 ("net: hns3: fix kernel crash when devlink reload during initialization") 2a1a1a7b5fd7 ("net: hns3: add command queue trace for hns3") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 36b133f04d30..c0b97c93a6de 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3034,6 +3034,21 @@ static inline void skb_mac_header_rebuild(struct sk_buff *skb)
}
}
+/* Move the full mac header up to current network_header.
+ * Leaves skb->data pointing at offset skb->mac_len into the mac_header.
+ * Must be provided the complete mac header length.
+ */
+static inline void skb_mac_header_rebuild_full(struct sk_buff *skb, u32 full_mac_len)
+{
+ if (skb_mac_header_was_set(skb)) {
+ const unsigned char *old_mac = skb_mac_header(skb);
+
+ skb_set_mac_header(skb, -full_mac_len);
+ memmove(skb_mac_header(skb), old_mac, full_mac_len);
+ __skb_push(skb, full_mac_len - skb->mac_len);
+ }
+}
+
static inline int skb_checksum_start_offset(const struct sk_buff *skb)
{
return skb->csum_start - skb_headroom(skb);