Patch "ipvs: Avoid unnecessary calls to skb_is_gso_sctp" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    ipvs: Avoid unnecessary calls to skb_is_gso_sctp

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ipvs-avoid-unnecessary-calls-to-skb_is_gso_sctp.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 846e0819d2dd3f26f581a918f587a07b4e12ae90
Author: Ismael Luceno <iluceno@xxxxxxx>
Date:   Thu May 23 18:54:44 2024 +0200

    ipvs: Avoid unnecessary calls to skb_is_gso_sctp
    
    [ Upstream commit 53796b03295cf7ab1fc8600016fa6dfbf4a494a0 ]
    
    In the context of the SCTP SNAT/DNAT handler, these calls can only
    return true.
    
    Fixes: e10d3ba4d434 ("ipvs: Fix checksumming on GSO of SCTP packets")
    Signed-off-by: Ismael Luceno <iluceno@xxxxxxx>
    Acked-by: Julian Anastasov <ja@xxxxxx>
    Acked-by: Simon Horman <horms@xxxxxxxxxx>
    Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 1e689c7141271..83e452916403d 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -126,7 +126,7 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 	if (sctph->source != cp->vport || payload_csum ||
 	    skb->ip_summed == CHECKSUM_PARTIAL) {
 		sctph->source = cp->vport;
-		if (!skb_is_gso(skb) || !skb_is_gso_sctp(skb))
+		if (!skb_is_gso(skb))
 			sctp_nat_csum(skb, sctph, sctphoff);
 	} else {
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -175,7 +175,7 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 	    (skb->ip_summed == CHECKSUM_PARTIAL &&
 	     !(skb_dst(skb)->dev->features & NETIF_F_SCTP_CRC))) {
 		sctph->dest = cp->dport;
-		if (!skb_is_gso(skb) || !skb_is_gso_sctp(skb))
+		if (!skb_is_gso(skb))
 			sctp_nat_csum(skb, sctph, sctphoff);
 	} else if (skb->ip_summed != CHECKSUM_PARTIAL) {
 		skb->ip_summed = CHECKSUM_UNNECESSARY;




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