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net/core: Remove unused assignment operations and variable 

Although if_info_size is assigned, it has not been used. And the variable
should also be deleted.

The clang_analyzer complains as follows:

net/core/rtnetlink.c:3806: warning:

Although the value stored to 'if_info_size' is used in the enclosing
expression, the value is never actually read from 'if_info_size'.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: luo penghao <luo.penghao@zte.com.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
luo penghao 2021-10-21 06:40:20 +00:00 committed by David S. Miller
parent c5c6e589a8
commit 50af5969bb
1 changed files with 1 additions and 2 deletions
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3
net/core/rtnetlink.c
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@ -3804,9 +3804,8 @@ struct sk_buff *rtmsg_ifinfo_build_skb(int type, struct net_device *dev,
struct net *net = dev_net(dev);
struct sk_buff *skb;
int err = -ENOBUFS;
size_t if_info_size;
skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);
skb = nlmsg_new(if_nlmsg_size(dev, 0), flags);
if (skb == NULL)
goto errout;