* [PATCH] net: Use helper macro IP_MAX_MTU in __ip_append_data()
@ 2020-08-29 9:09 Miaohe Lin
2020-08-31 19:33 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Miaohe Lin @ 2020-08-29 9:09 UTC (permalink / raw)
To: davem, kuznet, yoshfuji, kuba; +Cc: netdev, linux-kernel, linmiaohe
What 0xFFFF means here is actually the max mtu of a ip packet. Use help
macro IP_MAX_MTU here.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
net/ipv4/ip_output.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 329a0ab87542..f0f234727547 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -996,7 +996,7 @@ static int __ip_append_data(struct sock *sk,
fragheaderlen = sizeof(struct iphdr) + (opt ? opt->optlen : 0);
maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;
- maxnonfragsize = ip_sk_ignore_df(sk) ? 0xFFFF : mtu;
+ maxnonfragsize = ip_sk_ignore_df(sk) ? IP_MAX_MTU : mtu;
if (cork->length + length > maxnonfragsize - fragheaderlen) {
ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,
--
2.19.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net: Use helper macro IP_MAX_MTU in __ip_append_data()
2020-08-29 9:09 [PATCH] net: Use helper macro IP_MAX_MTU in __ip_append_data() Miaohe Lin
@ 2020-08-31 19:33 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2020-08-31 19:33 UTC (permalink / raw)
To: linmiaohe; +Cc: kuznet, yoshfuji, kuba, netdev, linux-kernel
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Sat, 29 Aug 2020 05:09:18 -0400
> What 0xFFFF means here is actually the max mtu of a ip packet. Use help
> macro IP_MAX_MTU here.
>
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Applied.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-08-29 9:09 [PATCH] net: Use helper macro IP_MAX_MTU in __ip_append_data() Miaohe Lin
2020-08-31 19:33 ` David Miller
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