uml: remove init_irq_signals

init_irq_signals doesn't need to be called from the context of a new process.
It initializes handlers, which are useless in process context.  With that call
gone, init_irq_signals has only one caller, so it can be inlined into
init_new_thread_signals.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 11 deletions

diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index 430866ca1ce4..0348b975e81c 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -136,14 +136,3 @@ void os_set_ioignore(void)
 {
         signal(SIGIO, SIG_IGN);
 }
-
-void init_irq_signals(int on_sigstack)
-{
-        int flags;
-
-        flags = on_sigstack ? SA_ONSTACK : 0;
-
-        set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART,
-                    SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1);
-        signal(SIGWINCH, SIG_IGN);
-}