[PATCH] um: remove dead code about os_usr1_signal() and os_usr1_process()

os_usr1_signal() is totally unused, os_usr1_process() is used only by TT mode.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 3 insertions, 5 deletions

diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index c692a192957a..76bdd6712417 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -21,6 +21,7 @@
 #include "longjmp.h"
 #include "skas_ptrace.h"
 #include "kern_constants.h"
+#include "uml-config.h"
 
 #define ARBITRARY_ADDR -1
 #define FAILURE_PID    -1
@@ -131,10 +132,12 @@ void os_kill_ptraced_process(int pid, int reap_child)
                 CATCH_EINTR(waitpid(pid, NULL, 0));
 }
 
+#ifdef UML_CONFIG_MODE_TT
 void os_usr1_process(int pid)
 {
         kill(pid, SIGUSR1);
 }
+#endif
 
 /* Don't use the glibc version, which caches the result in TLS. It misses some
  * syscalls, and also breaks with clone(), which does not unshare the TLS.
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index b897e8592d77..266768629fee 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -243,8 +243,3 @@ int set_signals(int enable)
 
         return ret;
 }
-
-void os_usr1_signal(int on)
-{
-        change_sig(SIGUSR1, on);
-}