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[PATCH][V2][netdev-next] gre: remove duplicated assignment of iph

Started byColin King <colin.king@canonical.com>
First post2017-08-23 14:10 +0200
Last post2017-08-24 07:40 +0200
Articles 3 — 3 participants

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  [PATCH][V2][netdev-next] gre: remove duplicated assignment of iph Colin King <colin.king@canonical.com> - 2017-08-23 14:10 +0200
    Re: [PATCH][V2][netdev-next] gre: remove duplicated assignment of iph Nikolay Aleksandrov <nikolay@cumulusnetworks.com> - 2017-08-23 14:30 +0200
    Re: [PATCH][V2][netdev-next] gre: remove duplicated assignment of  iph David Miller <davem@davemloft.net> - 2017-08-24 07:40 +0200

#1718288 — [PATCH][V2][netdev-next] gre: remove duplicated assignment of iph

FromColin King <colin.king@canonical.com>
Date2017-08-23 14:10 +0200
Subject[PATCH][V2][netdev-next] gre: remove duplicated assignment of iph
Message-ID<uhCDV-nu-55@gated-at.bofh.it>
From: Colin Ian King <colin.king@canonical.com>

iph is being assigned the same value twice; remove the redundant
first assignment. (Thanks to Nikolay Aleksandrov for pointing out
that the first asssignment should be removed and not the second)

Fixes warning:
net/ipv4/ip_gre.c:265:2: warning: Value stored to 'iph' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 net/ipv4/ip_gre.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 6e8a62289e03..161326f7f10b 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -262,7 +262,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 	int len;
 
 	itn = net_generic(net, erspan_net_id);
-	iph = ip_hdr(skb);
 	len = gre_hdr_len + sizeof(*ershdr);
 
 	if (unlikely(!pskb_may_pull(skb, len)))
-- 
2.14.1

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#1718313

FromNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date2017-08-23 14:30 +0200
Message-ID<uhCXh-u4-13@gated-at.bofh.it>
In reply to#1718288
On 23/08/17 14:59, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> iph is being assigned the same value twice; remove the redundant
> first assignment. (Thanks to Nikolay Aleksandrov for pointing out
> that the first asssignment should be removed and not the second)
> 
> Fixes warning:
> net/ipv4/ip_gre.c:265:2: warning: Value stored to 'iph' is never read
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>  net/ipv4/ip_gre.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
> index 6e8a62289e03..161326f7f10b 100644
> --- a/net/ipv4/ip_gre.c
> +++ b/net/ipv4/ip_gre.c
> @@ -262,7 +262,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
>  	int len;
>  
>  	itn = net_generic(net, erspan_net_id);
> -	iph = ip_hdr(skb);
>  	len = gre_hdr_len + sizeof(*ershdr);
>  
>  	if (unlikely(!pskb_may_pull(skb, len)))
> 

LGTM,

Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>

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#1718847 — Re: [PATCH][V2][netdev-next] gre: remove duplicated assignment of iph

FromDavid Miller <davem@davemloft.net>
Date2017-08-24 07:40 +0200
SubjectRe: [PATCH][V2][netdev-next] gre: remove duplicated assignment of iph
Message-ID<uhT22-2ii-23@gated-at.bofh.it>
In reply to#1718288
From: Colin King <colin.king@canonical.com>
Date: Wed, 23 Aug 2017 12:59:48 +0100

> From: Colin Ian King <colin.king@canonical.com>
> 
> iph is being assigned the same value twice; remove the redundant
> first assignment. (Thanks to Nikolay Aleksandrov for pointing out
> that the first asssignment should be removed and not the second)
> 
> Fixes warning:
> net/ipv4/ip_gre.c:265:2: warning: Value stored to 'iph' is never read
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Much better, applied, thanks.

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