@@ -530,7 +530,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
goto drop;
}
- if ((err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0) {
+ if (xfrm_parse_spi(skb, nexthdr, &spi, &seq)) {
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
goto drop;
}
@@ -560,7 +560,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
}
seq = 0;
- if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0) {
+ if (!spi && xfrm_parse_spi(skb, nexthdr, &spi, &seq)) {
secpath_reset(skb);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
goto drop;
The variable err is not necessary in such places. It should be revmoved for the simplicity of the code. The clang_analyzer complains as follows: net/xfrm/xfrm_input.c:533: warning: net/xfrm/xfrm_input.c:563: warning: Although the value stored to 'err' is used in the enclosing expression, the value is never actually read from 'err'. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: luo penghao <luo.penghao@zte.com.cn> --- net/xfrm/xfrm_input.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)