Am 03.05.2017 15:50, schrieb Colin King:
> From: Colin Ian King <[email protected]>
>
> head is previously null checked and so the 2nd null check on head
> is redundant and therefore can be removed.
>
> Detected by CoverityScan, CID#1399505 ("Logically dead code")
>
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> net/sched/cls_matchall.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
> index 2efb36c08f2a..dee469fed967 100644
> --- a/net/sched/cls_matchall.c
> +++ b/net/sched/cls_matchall.c
> @@ -203,8 +203,7 @@ static int mall_change(struct net *net, struct sk_buff
> *in_skb,
>
> *arg = (unsigned long) head;
> rcu_assign_pointer(tp->root, new);
> - if (head)
> - call_rcu(&head->rcu, mall_destroy_rcu);
> + call_rcu(&head->rcu, mall_destroy_rcu);
> return 0;
>
> err_replace_hw_filter:
if someone cares .. the err=0 in the the line above the patch is also useless
because err is never used again. Merging both if will save 1 indent level.
err = mall_replace_hw_filter(tp, new, (unsigned long) new);
if (err && tc_skip_sw(flags) )
goto errout;
just my impression,
re
wh
