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blackfin: Use sigsp()

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Use sigsp() instead of the open coded variant.

Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Steven Miao <realmz6@gmail.com>
This commit is contained in:
Richard Weinberger 2014-03-05 13:38:04 +01:00 committed by Richard Weinberger
parent 065f31bd26
commit e90670a962
1 changed files with 3 additions and 11 deletions
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14
arch/blackfin/kernel/signal.c
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@ -135,19 +135,11 @@ static inline int rt_setup_sigcontext(struct sigcontext *sc, struct pt_regs *reg
return err;
}
static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
static inline void *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 (!on_sig_stack(usp))
usp = current->sas_ss_sp + current->sas_ss_size;
}
return (void *)((usp - frame_size) & -8UL);
}
@ -157,7 +149,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
struct rt_sigframe *frame;
int err = 0;
frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
frame = get_sigframe(ksig, sizeof(*frame));
err |= __put_user((current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap