Messages in this thread Patch in this message | | | From | (Eric W. Biederman) | Date | Mon, 23 Apr 2012 15:13:02 -0700 | Subject | [PATCH] net sysctl: Add place holder functions for when sysctl support is compiled out of the kernel. |
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Randy Dunlap <rdunlap@xenotime.net> reported: > On 04/23/2012 12:07 AM, Stephen Rothwell wrote: > >> Hi all, >> >> Changes since 20120420: > > > > ERROR: "unregister_net_sysctl_table" [net/phonet/phonet.ko] undefined! > ERROR: "register_net_sysctl" [net/phonet/phonet.ko] undefined! > > when CONFIG_SYSCTL is not enabled.
Add static inline stub functions to gracefully handle the case when sysctl support is not present.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> --- include/net/net_namespace.h | 15 ++++++++++++--- 1 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 3ee4a3d..ac9195e 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -284,11 +284,20 @@ struct ctl_table_header; #ifdef CONFIG_SYSCTL extern int net_sysctl_init(void); -#else -static inline int net_sysctl_init(void) { return 0; } -#endif extern struct ctl_table_header *register_net_sysctl(struct net *net, const char *path, struct ctl_table *table); extern void unregister_net_sysctl_table(struct ctl_table_header *header); +#else +static inline int net_sysctl_init(void) { return 0; } +static inline struct ctl_table_header *register_net_sysctl(struct net *net, + const char *path, struct ctl_table *table) +{ + return NULL; +} +static inline void unregister_net_sysctl_table(struct ctl_table_header *header) +{ +} +#endif + #endif /* __NET_NET_NAMESPACE_H */ -- 1.7.2.5
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