Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
net: arp: use kfree_skb_reason() in arp_rcv()
Replace kfree_skb() with kfree_skb_reason() in arp_rcv().
Signed-off-by: Qiu Yutan <qiu.yutan@zte.com.cn>
Signed-off-by: Jiang Kun <jiang.kun2@zte.com.cn>
Link: https://patch.msgid.link/20250612110259698Q2KNNOPQhnIApRskKN3Hi@zte.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
authored by
Qiu Yutan
and committed by
Jakub Kicinski
0051ea4a
a7075659
+7
-3
+7
-3
net/ipv4/arp.c
+7
-3
net/ipv4/arp.c
···
966
966
static int arp_rcv(struct sk_buff *skb, struct net_device *dev,
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struct packet_type *pt, struct net_device *orig_dev)
968
968
{
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+
enum skb_drop_reason drop_reason;
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const struct arphdr *arp;
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971
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/* do not tweak dropwatch on an ARP we will ignore */
···
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goto out_of_mem;
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982
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/* ARP header, plus 2 device addresses, plus 2 IP addresses. */
983
-
if (!pskb_may_pull(skb, arp_hdr_len(dev)))
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+
drop_reason = pskb_may_pull_reason(skb, arp_hdr_len(dev));
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+
if (drop_reason != SKB_NOT_DROPPED_YET)
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goto freeskb;
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arp = arp_hdr(skb);
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-
if (arp->ar_hln != dev->addr_len || arp->ar_pln != 4)
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+
if (arp->ar_hln != dev->addr_len || arp->ar_pln != 4) {
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+
drop_reason = SKB_DROP_REASON_NOT_SPECIFIED;
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goto freeskb;
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+
}
989
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memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
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···
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consume_skb(skb);
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return NET_RX_SUCCESS;
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freeskb:
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-
kfree_skb(skb);
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+
kfree_skb_reason(skb, drop_reason);
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1000
out_of_mem:
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1001
return NET_RX_DROP;
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1002
}