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SubjectRe: [PATCH 31/43] blackfin: Use sigsp()
From
Acked-by: Steven Miao <realmz6@gmail.com>

Thanks.

On Mon, Jul 21, 2014 at 10:03 PM, Richard Weinberger
<richard@sigma-star.at> wrote:
> From: Richard Weinberger <richard@nod.at>
>
> Use sigsp() instead of the open coded variant.
>
> Signed-off-by: Richard Weinberger <richard@nod.at>
> ---
> arch/blackfin/kernel/signal.c | 14 +++-----------
> 1 file changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c
> index 1389cd3..ef27557 100644
> --- a/arch/blackfin/kernel/signal.c
> +++ b/arch/blackfin/kernel/signal.c
> @@ -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
> --
> 1.8.4.5
>


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