* [PATCH] netfilter: ip6_tables: remove redundant assignment to e
@ 2017-10-17 12:02 Colin King
2017-11-06 13:18 ` Pablo Neira Ayuso
0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2017-10-17 12:02 UTC (permalink / raw)
To: Pablo Neira Ayuso, Jozsef Kadlecsik, Florian Westphal,
David S . Miller, Alexey Kuznetsov, Hideaki YOSHIFUJI,
netfilter-devel, coreteam, netdev
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
The assignment to variable e is redundant since the same assignment
occurs just a few lines later, hence it can be removed. Cleans up
clang warning: warning: Value stored to 'e' is never read
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
net/ipv6/netfilter/ip6_tables.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 01bd3ee5ebc6..702e483d38b0 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -458,7 +458,6 @@ mark_source_chains(const struct xt_table_info *newinfo,
if (!xt_find_jump_offset(offsets, newpos,
newinfo->number))
return 0;
- e = entry0 + newpos;
} else {
/* ... this is a fallthru */
newpos = pos + e->next_offset;
--
2.14.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] netfilter: ip6_tables: remove redundant assignment to e
2017-10-17 12:02 [PATCH] netfilter: ip6_tables: remove redundant assignment to e Colin King
@ 2017-11-06 13:18 ` Pablo Neira Ayuso
0 siblings, 0 replies; 2+ messages in thread
From: Pablo Neira Ayuso @ 2017-11-06 13:18 UTC (permalink / raw)
To: Colin King
Cc: Jozsef Kadlecsik, Florian Westphal, David S . Miller,
Alexey Kuznetsov, Hideaki YOSHIFUJI, netfilter-devel, coreteam,
netdev, kernel-janitors, linux-kernel
On Tue, Oct 17, 2017 at 01:02:00PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> The assignment to variable e is redundant since the same assignment
> occurs just a few lines later, hence it can be removed. Cleans up
> clang warning: warning: Value stored to 'e' is never read
Seems like net/ipv4/netfilter/ip_tables.c also has exactly the same
redundant assignment, see mark_source_chains() there.
If we can fix this all iptables spots in one go, the best. Please,
also check arp_tables and ebtables.
Thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
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