xtensa: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index de34d6b..d7590dd 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -265,7 +265,7 @@
ret = regs->areg[2];
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->areg[1]) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return ret;
@@ -368,11 +368,7 @@
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
- err |= __put_user((void *)current->sas_ss_sp,
- &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->areg[1]),
- &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+ err |= __save_altstack(&frame->uc.uc_stack, regs->areg[1]);
err |= setup_sigcontext(frame, regs);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
@@ -424,16 +420,6 @@
return -EFAULT;
}
-asmlinkage long xtensa_sigaltstack(const stack_t __user *uss,
- stack_t __user *uoss,
- long a2, long a3, long a4, long a5,
- struct pt_regs *regs)
-{
- return do_sigaltstack(uss, uoss, regs->areg[1]);
-}
-
-
-
/*
* Note that 'init' is a special process: it doesn't get signals it doesn't
* want to handle. Thus you cannot kill init even with a SIGKILL even by