Commit 74008b36 authored by Al Viro's avatar Al Viro
Browse files

whack-a-mole: there's no point doing set_fs(USER_DS) in sigframe setup 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent a555ad45

arch/frv/kernel/signal.c

+0 −4
Original line number Diff line number Diff line
@@ -176,8 +176,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set) 
	struct sigframe __user *frame;

	int rsig, sig = ksig->sig;



	set_fs(USER_DS);



	frame = get_sigframe(ksig, sizeof(*frame));



	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
@@ -257,8 +255,6 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set) 
	struct rt_sigframe __user *frame;

	int rsig, sig = ksig->sig;



	set_fs(USER_DS);



	frame = get_sigframe(ksig, sizeof(*frame));



	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))

arch/m32r/kernel/signal.c

+0 −2
Original line number Diff line number Diff line
@@ -214,8 +214,6 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, 
	regs->r2 = (unsigned long)&frame->uc;

	regs->bpc = (unsigned long)ksig->ka.sa.sa_handler;



	set_fs(USER_DS);



#if DEBUG_SIG

	printk("SIG deliver (%s:%d): sp=%p pc=%p\n",

		current->comm, current->pid, frame, regs->pc);

arch/microblaze/kernel/signal.c

+0 −2
Original line number Diff line number Diff line
@@ -236,8 +236,6 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, 
	/* Offset to handle microblaze rtid r14, 0 */

	regs->pc = (unsigned long)ksig->ka.sa.sa_handler;



	set_fs(USER_DS);



#ifdef DEBUG_SIG

	pr_info("SIG deliver (%s:%d): sp=%p pc=%08lx\n",

		current->comm, current->pid, frame, regs->pc);

arch/sh/kernel/signal_32.c

+0 −4
Original line number Diff line number Diff line
@@ -329,8 +329,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, 
	if (err)

		return -EFAULT;



	set_fs(USER_DS);



	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",

		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);
@@ -408,8 +406,6 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, 
	if (err)

		return -EFAULT;



	set_fs(USER_DS);



	pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",

		 current->comm, task_pid_nr(current), frame, regs->pc, regs->pr);

arch/sh/kernel/signal_64.c

+0 −4
Original line number Diff line number Diff line
@@ -457,8 +457,6 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs 


	regs->pc = neff_sign_extend((unsigned long)ksig->ka.sa.sa_handler);



	set_fs(USER_DS);



	/* Broken %016Lx */

	pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",

		 signal, current->comm, current->pid, frame,
@@ -547,8 +545,6 @@ static int setup_rt_frame(struct ksignal *kig, sigset_t *set, 
	regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;

	regs->pc = neff_sign_extend((unsigned long)ksig->ka.sa.sa_handler);



	set_fs(USER_DS);



	pr_debug("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",

		 signal, current->comm, current->pid, frame,

		 regs->pc >> 32, regs->pc & 0xffffffff,

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