kconfig: centralize the selection of semaphore debugging in lib/Kconfig.debug

Remove the Kconfig selection of semaphore debugging from the ALPHA and FRV
Kconfig files, and centralize it in lib/Kconfig.debug.

There doesn't seem to be much point in letting individual architectures
independently define the same Kconfig option when it can just as easily be
put in a single Kconfig file and made dependent on a subset of
architectures.  that way, at least the option shows up in the same relative
location in the menu each time.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

4 files changed, 17 insertions, 17 deletions

diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
index 36d0106c32eb..f45f28cc10da 100644
--- a/arch/alpha/Kconfig.debug
+++ b/arch/alpha/Kconfig.debug
@@ -16,14 +16,6 @@ config DEBUG_RWLOCK
           too many attempts.  If you suspect a rwlock problem or a kernel
           hacker asks for this option then say Y.  Otherwise say N.
 
-config DEBUG_SEMAPHORE
-        bool "Semaphore debugging"
-        depends on DEBUG_KERNEL
-        help
-          If you say Y here then semaphore processing will issue lots of
-          verbose debugging messages.  If you suspect a semaphore problem or a
-          kernel hacker asks for this option then say Y.  Otherwise say N.
-
 config ALPHA_LEGACY_START_ADDRESS
         bool "Legacy kernel start address"
         depends on ALPHA_GENERIC
diff --git a/arch/frv/kernel/semaphore.c b/arch/frv/kernel/semaphore.c
index f278cdf3a72f..8e182ced1a0f 100644
--- a/arch/frv/kernel/semaphore.c
+++ b/arch/frv/kernel/semaphore.c
@@ -19,7 +19,7 @@ struct sem_waiter {
         struct task_struct      *task;
 };
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
 void semtrace(struct semaphore *sem, const char *str)
 {
         if (sem->debug)
diff --git a/include/asm-frv/semaphore.h b/include/asm-frv/semaphore.h
index 907c5c3643cc..09586528e007 100644
--- a/include/asm-frv/semaphore.h
+++ b/include/asm-frv/semaphore.h
@@ -20,8 +20,6 @@
 #include <linux/spinlock.h>
 #include <linux/rwsem.h>
 
-#define SEMAPHORE_DEBUG         0
-
 /*
  * the semaphore definition
  * - if counter is >0 then there are tokens available on the semaphore for down to collect
@@ -32,12 +30,12 @@ struct semaphore {
         unsigned                counter;
         spinlock_t              wait_lock;
         struct list_head        wait_list;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
         unsigned                __magic;
 #endif
 };
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
 # define __SEM_DEBUG_INIT(name) , (long)&(name).__magic
 #else
 # define __SEM_DEBUG_INIT(name)
@@ -76,7 +74,7 @@ static inline void down(struct semaphore *sem)
 {
         unsigned long flags;
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
         CHECK_MAGIC(sem->__magic);
 #endif
 
@@ -95,7 +93,7 @@ static inline int down_interruptible(struct semaphore *sem)
         unsigned long flags;
         int ret = 0;
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
         CHECK_MAGIC(sem->__magic);
 #endif
 
@@ -119,7 +117,7 @@ static inline int down_trylock(struct semaphore *sem)
         unsigned long flags;
         int success = 0;
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
         CHECK_MAGIC(sem->__magic);
 #endif
 
@@ -136,7 +134,7 @@ static inline void up(struct semaphore *sem)
 {
         unsigned long flags;
 
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
         CHECK_MAGIC(sem->__magic);
 #endif
 
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 9a287796da8e..9bd002a00484 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -201,6 +201,16 @@ config DEBUG_MUTEXES
          This feature allows mutex semantics violations to be detected and
          reported.
 
+config DEBUG_SEMAPHORE
+        bool "Semaphore debugging"
+        depends on DEBUG_KERNEL
+        depends on ALPHA || FRV
+        default n
+        help
+          If you say Y here then semaphore processing will issue lots of
+          verbose debugging messages.  If you suspect a semaphore problem or a
+          kernel hacker asks for this option then say Y.  Otherwise say N.
+
 config DEBUG_LOCK_ALLOC
         bool "Lock debugging: detect incorrect freeing of live locks"
         depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT