* [PATCH nf] netfilter: core: remove erroneous warn_on
@ 2017-09-06 12:47 Florian Westphal
2017-09-06 21:51 ` Aaron Conole
2017-09-08 12:04 ` Pablo Neira Ayuso
0 siblings, 2 replies; 3+ messages in thread
From: Florian Westphal @ 2017-09-06 12:47 UTC (permalink / raw)
To: netfilter-devel; +Cc: Florian Westphal
kernel test robot reported:
WARNING: CPU: 0 PID: 1244 at net/netfilter/core.c:218 __nf_hook_entries_try_shrink+0x49/0xcd
[..]
After allowing batching in nf_unregister_net_hooks its possible that an earlier
call to __nf_hook_entries_try_shrink already compacted the list.
If this happens we don't need to do anything.
Fixes: d3ad2c17b4047 ("netfilter: core: batch nf_unregister_net_hooks synchronize_net calls")
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
---
net/netfilter/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 04fe25abc5f6..52cd2901a097 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -215,7 +215,7 @@ static void *__nf_hook_entries_try_shrink(struct nf_hook_entries __rcu **pp)
if (skip == hook_entries)
goto out_assign;
- if (WARN_ON(skip == 0))
+ if (skip == 0)
return NULL;
hook_entries -= skip;
--
2.13.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH nf] netfilter: core: remove erroneous warn_on
2017-09-06 12:47 [PATCH nf] netfilter: core: remove erroneous warn_on Florian Westphal
@ 2017-09-06 21:51 ` Aaron Conole
2017-09-08 12:04 ` Pablo Neira Ayuso
1 sibling, 0 replies; 3+ messages in thread
From: Aaron Conole @ 2017-09-06 21:51 UTC (permalink / raw)
To: Florian Westphal; +Cc: netfilter-devel
Florian Westphal <fw@strlen.de> writes:
> kernel test robot reported:
>
> WARNING: CPU: 0 PID: 1244 at net/netfilter/core.c:218 __nf_hook_entries_try_shrink+0x49/0xcd
> [..]
>
> After allowing batching in nf_unregister_net_hooks its possible that an earlier
> call to __nf_hook_entries_try_shrink already compacted the list.
> If this happens we don't need to do anything.
>
> Fixes: d3ad2c17b4047 ("netfilter: core: batch nf_unregister_net_hooks synchronize_net calls")
> Reported-by: kernel test robot <xiaolong.ye@intel.com>
> Signed-off-by: Florian Westphal <fw@strlen.de>
> ---
Acked-by: Aaron Conole <aconole@bytheb.org>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH nf] netfilter: core: remove erroneous warn_on
2017-09-06 12:47 [PATCH nf] netfilter: core: remove erroneous warn_on Florian Westphal
2017-09-06 21:51 ` Aaron Conole
@ 2017-09-08 12:04 ` Pablo Neira Ayuso
1 sibling, 0 replies; 3+ messages in thread
From: Pablo Neira Ayuso @ 2017-09-08 12:04 UTC (permalink / raw)
To: Florian Westphal; +Cc: netfilter-devel
On Wed, Sep 06, 2017 at 02:47:57PM +0200, Florian Westphal wrote:
> kernel test robot reported:
>
> WARNING: CPU: 0 PID: 1244 at net/netfilter/core.c:218 __nf_hook_entries_try_shrink+0x49/0xcd
> [..]
>
> After allowing batching in nf_unregister_net_hooks its possible that an earlier
> call to __nf_hook_entries_try_shrink already compacted the list.
> If this happens we don't need to do anything.
Applied, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-09-08 12:04 UTC | newest]
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2017-09-06 12:47 [PATCH nf] netfilter: core: remove erroneous warn_on Florian Westphal
2017-09-06 21:51 ` Aaron Conole
2017-09-08 12:04 ` Pablo Neira Ayuso
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