From 9ea0f043fec38fadb0101fbf29563a5635f42e93 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 3 Oct 2007 14:29:19 +0100 Subject: [PATCH] [MIPS] Terminally fix local_{dec,sub}_if_positive They contain 64-bit instructions so wouldn't work on 32-bit kernels or 32-bit hardware. Since there are no users, blow them away. They probably were only ever created because there are atomic_sub_if_positive and atomic_dec_if_positive which exist only for sake of semaphores. Signed-off-by: Ralf Baechle --- include/asm-mips/local.h | 68 ---------------------------------------- 1 file changed, 68 deletions(-) diff --git a/include/asm-mips/local.h b/include/asm-mips/local.h index 7034a01566..f9a5ce5c9a 100644 --- a/include/asm-mips/local.h +++ b/include/asm-mips/local.h @@ -115,68 +115,6 @@ static __inline__ long local_sub_return(long i, local_t * l) return result; } -/* - * local_sub_if_positive - conditionally subtract integer from atomic variable - * @i: integer value to subtract - * @l: pointer of type local_t - * - * Atomically test @l and subtract @i if @l is greater or equal than @i. - * The function returns the old value of @l minus @i. - */ -static __inline__ long local_sub_if_positive(long i, local_t * l) -{ - unsigned long result; - - if (cpu_has_llsc && R10000_LLSC_WAR) { - unsigned long temp; - - __asm__ __volatile__( - " .set mips3 \n" - "1:" __LL "%1, %2 # local_sub_if_positive\n" - " dsubu %0, %1, %3 \n" - " bltz %0, 1f \n" - __SC "%0, %2 \n" - " .set noreorder \n" - " beqzl %0, 1b \n" - " dsubu %0, %1, %3 \n" - " .set reorder \n" - "1: \n" - " .set mips0 \n" - : "=&r" (result), "=&r" (temp), "=m" (l->a.counter) - : "Ir" (i), "m" (l->a.counter) - : "memory"); - } else if (cpu_has_llsc) { - unsigned long temp; - - __asm__ __volatile__( - " .set mips3 \n" - "1:" __LL "%1, %2 # local_sub_if_positive\n" - " dsubu %0, %1, %3 \n" - " bltz %0, 1f \n" - __SC "%0, %2 \n" - " .set noreorder \n" - " beqz %0, 1b \n" - " dsubu %0, %1, %3 \n" - " .set reorder \n" - "1: \n" - " .set mips0 \n" - : "=&r" (result), "=&r" (temp), "=m" (l->a.counter) - : "Ir" (i), "m" (l->a.counter) - : "memory"); - } else { - unsigned long flags; - - local_irq_save(flags); - result = l->a.counter; - result -= i; - if (result >= 0) - l->a.counter = result; - local_irq_restore(flags); - } - - return result; -} - #define local_cmpxchg(l, o, n) \ ((long)cmpxchg_local(&((l)->a.counter), (o), (n))) #define local_xchg(l, n) (xchg_local(&((l)->a.counter),(n))) @@ -234,12 +172,6 @@ static __inline__ long local_sub_if_positive(long i, local_t * l) */ #define local_dec_and_test(l) (local_sub_return(1, (l)) == 0) -/* - * local_dec_if_positive - decrement by 1 if old value positive - * @l: pointer of type local_t - */ -#define local_dec_if_positive(l) local_sub_if_positive(1, l) - /* * local_add_negative - add and test if negative * @l: pointer of type local_t -- 2.39.5