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net: inline function get_net_ns_by_fd if NET_NS is disabled 

The function get_net_ns_by_fd() could be inlined when NET_NS is not
enabled.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Changbin Du 2021-06-15 07:52:43 +08:00 committed by David S. Miller
parent 475b92f932
commit e34492dea6
2 changed files with 7 additions and 8 deletions
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7
include/net/net_namespace.h
View File

@ -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);

8
net/core/net_namespace.c
View File

@ -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)
{