* [PATCH] net/core/skmsg: Delete an unnecessary check before the function call “consume_skb”
@ 2019-08-22 16:08 Markus Elfring
2019-08-22 21:13 ` Song Liu
0 siblings, 1 reply; 2+ messages in thread
From: Markus Elfring @ 2019-08-22 16:08 UTC (permalink / raw)
To: netdev, bpf, Daniel Borkmann, David S. Miller, John Fastabend
Cc: LKML, kernel-janitors
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Thu, 22 Aug 2019 18:00:40 +0200
The consume_skb() function performs also input parameter validation.
Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
net/core/skmsg.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 6832eeb4b785..cf390e0aa73d 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -190,8 +190,7 @@ static int __sk_msg_free(struct sock *sk, struct sk_msg *msg, u32 i,
sk_msg_check_to_free(msg, i, msg->sg.size);
sge = sk_msg_elem(msg, i);
}
- if (msg->skb)
- consume_skb(msg->skb);
+ consume_skb(msg->skb);
sk_msg_init(msg);
return freed;
}
--
2.23.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net/core/skmsg: Delete an unnecessary check before the function call “consume_skb”
2019-08-22 16:08 [PATCH] net/core/skmsg: Delete an unnecessary check before the function call “consume_skb” Markus Elfring
@ 2019-08-22 21:13 ` Song Liu
0 siblings, 0 replies; 2+ messages in thread
From: Song Liu @ 2019-08-22 21:13 UTC (permalink / raw)
To: Markus Elfring
Cc: Networking, bpf, Daniel Borkmann, David S. Miller,
John Fastabend, LKML, kernel-janitors
On Thu, Aug 22, 2019 at 10:18 AM Markus Elfring <Markus.Elfring@web.de> wrote:
>
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Thu, 22 Aug 2019 18:00:40 +0200
>
> The consume_skb() function performs also input parameter validation.
> Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Song Liu <songliubraving@fb.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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