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-rw-r--r--arch/hexagon/kernel/signal.c29
1 files changed, 5 insertions, 24 deletions
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c
index a1492a6..8a20e8e 100644
--- a/arch/hexagon/kernel/signal.c
+++ b/arch/hexagon/kernel/signal.c
@@ -199,7 +199,7 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka,
/*
* Called from return-from-event code.
*/
-static void do_signal(struct pt_regs *regs)
+void do_signal(struct pt_regs *regs)
{
struct k_sigaction sigact;
siginfo_t info;
@@ -216,8 +216,9 @@ static void do_signal(struct pt_regs *regs)
}
/*
- * If we came from a system call, handle the restart.
+ * No (more) signals; if we came from a system call, handle the restart.
*/
+
if (regs->syscall_nr >= 0) {
switch (regs->r00) {
case -ERESTARTNOHAND:
@@ -240,17 +241,6 @@ no_restart:
restore_saved_sigmask();
}
-void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
-{
- if (thread_info_flags & _TIF_SIGPENDING)
- do_signal(regs);
-
- if (thread_info_flags & _TIF_NOTIFY_RESUME) {
- clear_thread_flag(TIF_NOTIFY_RESUME);
- tracehook_notify_resume(regs);
- }
-}
-
/*
* Architecture-specific wrappers for signal-related system calls
*/
@@ -278,21 +268,12 @@ asmlinkage int sys_rt_sigreturn(void)
/* Restore the user's stack as well */
pt_psp(regs) = regs->r29;
- /*
- * Leave a trace in the stack frame that this was a sigreturn.
- * If the system call is to replay, we've already restored the
- * number in the GPR slot and it will be regenerated on the
- * new system call trap entry. Note that if restore_sigcontext()
- * did something other than a bulk copy of the pt_regs struct,
- * we could avoid this assignment by simply not overwriting
- * regs->syscall_nr.
- */
- regs->syscall_nr = __NR_rt_sigreturn;
+ regs->syscall_nr = -1;
if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
- return 0;
+ return regs->r00;
badframe:
force_sig(SIGSEGV, current);
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