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m68k: Use sigsp()

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Use sigsp() instead of the open coded variant.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2014-03-05 15:28:59 +01:00 committed by Richard Weinberger
parent 5c0806faf1
commit 36992f2893
1 changed files with 4 additions and 12 deletions
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16
arch/m68k/kernel/signal.c
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@ -835,18 +835,10 @@ static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *
}
static inline void __user *
get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
get_sigframe(struct ksignal *ksig, size_t frame_size)
{
unsigned long usp;
unsigned long usp = sigsp(rdusp(), ksig);
/* Default to using normal stack. */
usp = rdusp();
/* This is the X/Open sanctioned signal stack switching. */
if (ka->sa.sa_flags & SA_ONSTACK) {
if (!sas_ss_flags(usp))
usp = current->sas_ss_sp + current->sas_ss_size;
}
return (void __user *)((usp - frame_size) & -8UL);
}
@ -866,7 +858,7 @@ static int setup_frame(struct ksignal *ksig, sigset_t *set,
return -EFAULT;
}
frame = get_sigframe(&ksig->ka, regs, sizeof(*frame) + fsize);
frame = get_sigframe(ksig, sizeof(*frame) + fsize);
if (fsize)
err |= copy_to_user (frame + 1, regs + 1, fsize);
@ -951,7 +943,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
return -EFAULT;
}
frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
frame = get_sigframe(ksig, sizeof(*frame));
if (fsize)
err |= copy_to_user (&frame->uc.uc_extra, regs + 1, fsize);