[PATCH v2] net: inline function get_net_ns_by_fd if NET_NS is disabled
From: Changbin Du <hidden>
Date: 2021-06-14 23:53:10
The function get_net_ns_by_fd() could be inlined when NET_NS is not enabled. Signed-off-by: Changbin Du <redacted> --- v2: rebase to net-tree. --- include/net/net_namespace.h | 7 ++++++- net/core/net_namespace.c | 8 +------- 2 files changed, 7 insertions(+), 8 deletions(-)
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 6412d7833d97..bdc0459a595e 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h@@ -186,6 +186,7 @@ void net_ns_get_ownership(const struct net *net, kuid_t *uid, kgid_t *gid); void net_ns_barrier(void); struct ns_common *get_net_ns(struct ns_common *ns); +struct net *get_net_ns_by_fd(int fd); #else /* CONFIG_NET_NS */ #include <linux/sched.h> #include <linux/nsproxy.h>
@@ -210,13 +211,17 @@ static inline struct ns_common *get_net_ns(struct ns_common *ns) { return ERR_PTR(-EINVAL); } + +static inline struct net *get_net_ns_by_fd(int fd) +{ + return ERR_PTR(-EINVAL); +} #endif /* CONFIG_NET_NS */ extern struct list_head net_namespace_list; struct net *get_net_ns_by_pid(pid_t pid); -struct net *get_net_ns_by_fd(int fd); #ifdef CONFIG_SYSCTL void ipx_register_sysctl(void);
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index cc8dafb25d61..9b5a767eddd5 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c@@ -672,14 +672,8 @@ struct net *get_net_ns_by_fd(int fd) fput(file); return net; } - -#else -struct net *get_net_ns_by_fd(int fd) -{ - return ERR_PTR(-EINVAL); -} -#endif EXPORT_SYMBOL_GPL(get_net_ns_by_fd); +#endif struct net *get_net_ns_by_pid(pid_t pid) {
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2.30.2