diff options
| author | Richard Weinberger <richard@nod.at> | 2014-03-05 15:24:06 +0100 |
|---|---|---|
| committer | Richard Weinberger <richard@sigma-star.at> | 2014-08-06 13:04:08 +0200 |
| commit | 8bc77aa45e8383e760f1a7edd12ed4d077a068d8 (patch) | |
| tree | 604309e9b01b7ee097482cba3a037041f938f6c8 /arch/hexagon | |
| parent | 4a03ac362ebd115c0e42863b288648f5b536c95f (diff) | |
| download | lwn-8bc77aa45e8383e760f1a7edd12ed4d077a068d8.tar.gz lwn-8bc77aa45e8383e760f1a7edd12ed4d077a068d8.zip | |
hexagon: Use sigsp()
Use sigsp() instead of the open coded variant.
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/hexagon')
| -rw-r--r-- | arch/hexagon/kernel/signal.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index 6525358630d4..eadd70e47e7e 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -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; |