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| author |   Liping Zhang <zlpnobody@gmail.com> | 2017-05-07 22:01:55 +0800 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2017-05-15 12:42:29 +0200 |
| commit | d91fc59cd77c719f33eda65c194ad8f95a055190 (patch) | |
| tree | b39d63460a1b261518ed0fecc72a7ff1cff320c8 /net/netfilter/nf_conntrack_helper.c | |
| parent | netfilter: don't setup nat info for confirmed ct (diff) | |
| download | linux-dev-d91fc59cd77c719f33eda65c194ad8f95a055190.tar.xz linux-dev-d91fc59cd77c719f33eda65c194ad8f95a055190.zip | |
netfilter: introduce nf_conntrack_helper_put helper function
And convert module_put invocation to nf_conntrack_helper_put, this is
prepared for the followup patch, which will add a refcnt for cthelper,
so we can reject the deleting request when cthelper is in use.
Signed-off-by: Liping Zhang <zlpnobody@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_helper.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_helper.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index 3a60efa7799b..e17006b6e434 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -181,6 +181,12 @@ nf_conntrack_helper_try_module_get(const char *name, u16 l3num, u8 protonum) } EXPORT_SYMBOL_GPL(nf_conntrack_helper_try_module_get); +void nf_conntrack_helper_put(struct nf_conntrack_helper *helper) +{ + module_put(helper->me); +} +EXPORT_SYMBOL_GPL(nf_conntrack_helper_put); + struct nf_conn_help * nf_ct_helper_ext_add(struct nf_conn *ct, struct nf_conntrack_helper *helper, gfp_t gfp) |