From 7ac468b1300f35143a9b5b100e3970ca7ae1d9b8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 28 Nov 2012 11:50:25 -0800 Subject: x86, 386 removal: Remove CONFIG_XADD All 486+ CPUs support XADD, so remove the fallback 386 support code. Signed-off-by: H. Peter Anvin Link: http://lkml.kernel.org/r/1354132230-21854-4-git-send-email-hpa@linux.intel.com --- arch/x86/include/asm/atomic.h | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'arch/x86/include/asm/atomic.h') diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h index b6c3b82..722aa3b 100644 --- a/arch/x86/include/asm/atomic.h +++ b/arch/x86/include/asm/atomic.h @@ -172,23 +172,7 @@ static inline int atomic_add_negative(int i, atomic_t *v) */ static inline int atomic_add_return(int i, atomic_t *v) { -#ifdef CONFIG_M386 - int __i; - unsigned long flags; - if (unlikely(boot_cpu_data.x86 <= 3)) - goto no_xadd; -#endif - /* Modern 486+ processor */ return i + xadd(&v->counter, i); - -#ifdef CONFIG_M386 -no_xadd: /* Legacy 386 processor */ - raw_local_irq_save(flags); - __i = atomic_read(v); - atomic_set(v, i + __i); - raw_local_irq_restore(flags); - return i + __i; -#endif } /** -- cgit v1.1