netdev - [PATCH bpf-next] net: netfilter: Remove ifdefs for code shared by BPF and ctnetlink

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Message-Id: <20220725085130.11553-1-memxor@gmail.com>
Date:   Mon, 25 Jul 2022 10:51:30 +0200
From:   Kumar Kartikeya Dwivedi <memxor@...il.com>
To:     bpf@...r.kernel.org
Cc:     Pablo Neira Ayuso <pablo@...filter.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org
Subject: [PATCH bpf-next] net: netfilter: Remove ifdefs for code shared by BPF and ctnetlink

The current ifdefry for code shared by the BPF and ctnetlink side looks
ugly. As per Pablo's request, simplify this by unconditionally compiling
in the code. This can be revisited when the shared code between the two
grows further.

Suggested-by: Pablo Neira Ayuso <pablo@...filter.org>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@...il.com>
---
 include/net/netfilter/nf_conntrack_core.h | 6 ------
 net/netfilter/nf_conntrack_core.c         | 6 ------
 2 files changed, 12 deletions(-)

diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 3cd3a6e631aa..b2b9de70d9f4 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -86,10 +86,6 @@ extern spinlock_t nf_conntrack_expect_lock;

 /* ctnetlink code shared by both ctnetlink and nf_conntrack_bpf */

-#if (IS_BUILTIN(CONFIG_NF_CONNTRACK) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF)) || \
-    (IS_MODULE(CONFIG_NF_CONNTRACK) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES) || \
-    IS_ENABLED(CONFIG_NF_CT_NETLINK))
-
 static inline void __nf_ct_set_timeout(struct nf_conn *ct, u64 timeout)
 {
 	if (timeout > INT_MAX)
@@ -101,6 +97,4 @@ int __nf_ct_change_timeout(struct nf_conn *ct, u64 cta_timeout);
 void __nf_ct_change_status(struct nf_conn *ct, unsigned long on, unsigned long off);
 int nf_ct_change_status_common(struct nf_conn *ct, unsigned int status);

-#endif
-
 #endif /* _NF_CONNTRACK_CORE_H */
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 66a0aa8dbc3b..afe02772c010 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -2787,10 +2787,6 @@ int nf_conntrack_init_net(struct net *net)
 	return ret;
 }

-#if (IS_BUILTIN(CONFIG_NF_CONNTRACK) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF)) || \
-    (IS_MODULE(CONFIG_NF_CONNTRACK) && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES) || \
-    IS_ENABLED(CONFIG_NF_CT_NETLINK))
-
 /* ctnetlink code shared by both ctnetlink and nf_conntrack_bpf */

 int __nf_ct_change_timeout(struct nf_conn *ct, u64 timeout)
@@ -2846,5 +2842,3 @@ int nf_ct_change_status_common(struct nf_conn *ct, unsigned int status)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nf_ct_change_status_common);
-
-#endif
--
2.34.1