ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL

Compilation of ipc/ipc_sysctl.c is controlled by
obj-$(CONFIG_SYSVIPC_SYSCTL)
[see ipc/Makefile]

And CONFIG_SYSVIPC_SYSCTL depends on SYSCTL
[see init/Kconfig]

An SYSCTL is selected by PROC_SYSCTL.
[see fs/proc/Kconfig]

Thus: #ifndef CONFIG_PROC_SYSCTL in ipc/ipc_sysctl.c is impossible, the
fallback can be removed.

Link: https://lkml.kernel.org/r/20210918145337.3369-1-manfred@colorfullife.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 345e4d6..f101c17 100644 (file)
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -23,7 +23,6 @@ static void *get_ipc(struct ctl_table *table)
        return which;
 }
 
-#ifdef CONFIG_PROC_SYSCTL
 static int proc_ipc_dointvec(struct ctl_table *table, int write,
                void *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -118,18 +117,6 @@ static int proc_ipc_dointvec_minmax_checkpoint_restore(struct ctl_table *table,
 }
 #endif
 
-#else
-#define proc_ipc_doulongvec_minmax NULL
-#define proc_ipc_dointvec         NULL
-#define proc_ipc_dointvec_minmax   NULL
-#define proc_ipc_dointvec_minmax_orphans   NULL
-#define proc_ipc_auto_msgmni      NULL
-#define proc_ipc_sem_dointvec     NULL
-#ifdef CONFIG_CHECKPOINT_RESTORE
-#define proc_ipc_dointvec_minmax_checkpoint_restore    NULL
-#endif /* CONFIG_CHECKPOINT_RESTORE */
-#endif
-
 int ipc_mni = IPCMNI;
 int ipc_mni_shift = IPCMNI_SHIFT;
 int ipc_min_cycle = RADIX_TREE_MAP_SIZE;