From adc400f69053b16756ff3b00daa64884c8df0787 Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Tue, 26 Jul 2011 16:08:15 -0700 Subject: [PATCH] frv, exec: remove redundant set_fs(USER_DS) The address limit is already set in flush_old_exec() so those calls to set_fs(USER_DS) are redundant. Also removed the dead code in flush_thread(). Signed-off-by: Mathias Krause Acked-by: David Howells Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/frv/include/asm/processor.h | 1 - arch/frv/kernel/process.c | 5 +---- 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h index 4b789ab..81c2e27 100644 --- a/arch/frv/include/asm/processor.h +++ b/arch/frv/include/asm/processor.h @@ -97,7 +97,6 @@ extern struct task_struct *__kernel_current_task; */ #define start_thread(_regs, _pc, _usp) \ do { \ - set_fs(USER_DS); /* reads from user space */ \ __frame = __kernel_frame0_ptr; \ __frame->pc = (_pc); \ __frame->psr &= ~PSR_S; \ diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 9d35975..3901df1 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -143,10 +143,7 @@ void machine_power_off(void) void flush_thread(void) { -#if 0 //ndef NO_FPU - unsigned long zero = 0; -#endif - set_fs(USER_DS); + /* nothing */ } inline unsigned long user_stack(const struct pt_regs *regs) -- 2.7.4