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Commit 8bc77aa4 authored by Richard Weinberger's avatar Richard Weinberger Committed by Richard Weinberger
Browse files

hexagon: Use sigsp() 



Use sigsp() instead of the open coded variant.

Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent 4a03ac36

arch/hexagon/kernel/signal.c

+3 −11
Original line number Diff line number Diff line
@@ -36,18 +36,10 @@ struct rt_sigframe { 
	struct ucontext uc;

};



static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,

static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,

			  size_t frame_size)

{

	unsigned long sp = regs->r29;



	/* check if we would overflow the alt stack */

	if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size)))

		return (void __user __force *)-1UL;



	/* Switch to signal stack if appropriate */

	if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0))

		sp = current->sas_ss_sp + current->sas_ss_size;

	unsigned long sp = sigsp(regs->r29, ksig);



	return (void __user *)((sp - frame_size) & ~(sizeof(long long) - 1));

}
@@ -119,7 +111,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, 
	struct rt_sigframe __user *frame;

	struct hexagon_vdso *vdso = current->mm->context.vdso;



	frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe));

	frame = get_sigframe(ksig, regs, sizeof(struct rt_sigframe));



	if (!access_ok(VERIFY_WRITE, frame, sizeof(struct rt_sigframe)))

		return -EFAULT;