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netfilter: nf_tables: use dev->name directly

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no need to store the name in separate area.

Furthermore, it uses kmalloc but not kfree and most accesses seem to treat
it as char[IFNAMSIZ] not char *.

Remove this and use dev->name instead.

In case event zeroed dev, just omit the name in the dump.

Fixes: d92191aa84 ("netfilter: nf_tables: cache device name in flowtable object")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2018-07-17 07:17:53 +02:00
committed by Pablo Neira Ayuso
parent c293ac959f
commit b8088dda98
2 changed files with 5 additions and 10 deletions
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include/net/netfilter/nf_tables.h
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@@ -1124,7 +1124,6 @@ struct nft_flowtable {
u32 genmask:2,
use:30;
u64 handle;
char *dev_name[NFT_FLOWTABLE_DEVICE_MAX];
/* runtime data below here */
struct nf_hook_ops *ops ____cacheline_aligned;
struct nf_flowtable data;