Patchwork sparc32: Delete asm/smpprim.h

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Submitter David Miller
Date May 20, 2012, 4:57 a.m.
Message ID <20120520.005721.1275275281519084961.davem@davemloft.net>
Download mbox | patch
Permalink /patch/160231/
State Accepted
Delegated to: David Miller
Headers show

Comments

David Miller - May 20, 2012, 4:57 a.m.
Completely unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/smpprim.h |   54 --------------------------------------
 1 file changed, 54 deletions(-)
 delete mode 100644 arch/sparc/include/asm/smpprim.h

Patch

diff --git a/arch/sparc/include/asm/smpprim.h b/arch/sparc/include/asm/smpprim.h
deleted file mode 100644
index eb849d8..0000000
--- a/arch/sparc/include/asm/smpprim.h
+++ /dev/null
@@ -1,54 +0,0 @@ 
-/*
- *  smpprim.h:  SMP locking primitives on the Sparc
- *
- *  God knows we won't be actually using this code for some time
- *  but I thought I'd write it since I knew how.
- *
- *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#ifndef __SPARC_SMPPRIM_H
-#define __SPARC_SMPPRIM_H
-
-/* Test and set the unsigned byte at ADDR to 1.  Returns the previous
- * value.  On the Sparc we use the ldstub instruction since it is
- * atomic.
- */
-
-static inline __volatile__ char test_and_set(void *addr)
-{
-	char state = 0;
-
-	__asm__ __volatile__("ldstub [%0], %1         ! test_and_set\n\t"
-			     "=r" (addr), "=r" (state) :
-			     "0" (addr), "1" (state) : "memory");
-
-	return state;
-}
-
-/* Initialize a spin-lock. */
-static inline __volatile__ smp_initlock(void *spinlock)
-{
-	/* Unset the lock. */
-	*((unsigned char *) spinlock) = 0;
-
-	return;
-}
-
-/* This routine spins until it acquires the lock at ADDR. */
-static inline __volatile__ smp_lock(void *addr)
-{
-	while(test_and_set(addr) == 0xff)
-		;
-
-	/* We now have the lock */
-	return;
-}
-
-/* This routine releases the lock at ADDR. */
-static inline __volatile__ smp_unlock(void *addr)
-{
-	*((unsigned char *) addr) = 0;
-}
-
-#endif /* !(__SPARC_SMPPRIM_H) */