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authorRichard Weinberger <richard@nod.at>2014-03-05 15:24:06 +0100
committerRichard Weinberger <richard@sigma-star.at>2014-08-06 13:04:08 +0200
commit8bc77aa45e8383e760f1a7edd12ed4d077a068d8 (patch)
tree604309e9b01b7ee097482cba3a037041f938f6c8
parent4a03ac362ebd115c0e42863b288648f5b536c95f (diff)
downloadop-kernel-dev-8bc77aa45e8383e760f1a7edd12ed4d077a068d8.zip
op-kernel-dev-8bc77aa45e8383e760f1a7edd12ed4d077a068d8.tar.gz
hexagon: Use sigsp()
Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger <richard@nod.at>
-rw-r--r--arch/hexagon/kernel/signal.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
index 6525358..eadd70e 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;
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