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Merge branch 'net-fix-the-features-flag-in-sctp_gso_segment' 

Xin Long says:

====================
net: fix the features flag in sctp_gso_segment

Patch 1/2 is to improve the code in skb_segment(), and it is needed
by Patch 2/2.
====================

Link: https://lore.kernel.org/r/cover.1610703289.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2021-01-16 19:06:01 -08:00
parent 20efd2c79a 1fef8544bf
commit 213b97b125
2 changed files with 7 additions and 6 deletions
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11
net/core/skbuff.c
View File

@ -3894,12 +3894,8 @@ normal:
}
hsize = skb_headlen(head_skb) - offset;
if (hsize < 0)
hsize = 0;
if (hsize > len || !sg)
hsize = len;
if (!hsize && i >= nfrags && skb_headlen(list_skb) &&
if (hsize <= 0 && i >= nfrags && skb_headlen(list_skb) &&
(skb_headlen(list_skb) == len || sg)) {
BUG_ON(skb_headlen(list_skb) > len);
@ -3942,6 +3938,11 @@ normal:
skb_release_head_state(nskb);
__skb_push(nskb, doffset);
} else {
if (hsize > len || !sg)
hsize = len;
else if (hsize < 0)
hsize = 0;
nskb = __alloc_skb(hsize + doffset + headroom,
GFP_ATOMIC, skb_alloc_rx_flag(head_skb),
NUMA_NO_NODE);

2
net/sctp/offload.c
View File

@ -68,7 +68,7 @@ static struct sk_buff *sctp_gso_segment(struct sk_buff *skb,
goto out;
}
segs = skb_segment(skb, features | NETIF_F_HW_CSUM | NETIF_F_SG);
segs = skb_segment(skb, (features | NETIF_F_HW_CSUM) & ~NETIF_F_SG);
if (IS_ERR(segs))
goto out;