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Commit adc400f6 authored by Mathias Krause's avatar Mathias Krause Committed by Linus Torvalds
Browse files

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: default avatarMathias Krause <minipli@googlemail.com>
Acked-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 6fd4ce88

arch/frv/include/asm/processor.h

+0 −1
Original line number Original line Diff line number Diff line
@@ -97,7 +97,6 @@ extern struct task_struct *__kernel_current_task; 
 */

 */

#define start_thread(_regs, _pc, _usp)			\

#define start_thread(_regs, _pc, _usp)			\

do {							\

do {							\

	set_fs(USER_DS); /* reads from user space */	\

	__frame = __kernel_frame0_ptr;			\

	__frame = __kernel_frame0_ptr;			\

	__frame->pc	= (_pc);			\

	__frame->pc	= (_pc);			\

	__frame->psr	&= ~PSR_S;			\

	__frame->psr	&= ~PSR_S;			\

arch/frv/kernel/process.c

+1 −4
Original line number Original line Diff line number Diff line
@@ -143,10 +143,7 @@ void machine_power_off(void) 




void flush_thread(void)

void flush_thread(void)

{

{

#if 0 //ndef NO_FPU

	/* nothing */

	unsigned long zero = 0;

#endif

	set_fs(USER_DS);

}

}





inline unsigned long user_stack(const struct pt_regs *regs)

inline unsigned long user_stack(const struct pt_regs *regs)