Cleanup set_rumble functions

input/drivers/ctr_input.c

@@ -117,15 +117,7 @@ static void ctr_input_grab_mouse(void *data, bool state)
 }
 
 static bool ctr_input_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   (void)data;
-   (void)port;
-   (void)effect;
-   (void)strength;
-
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 input_driver_t input_ctr = {
    ctr_input_init,

input/drivers/dinput.c

@@ -1000,9 +1000,9 @@ static bool dinput_set_rumble(void *data, unsigned port,
       enum retro_rumble_effect effect, uint16_t strength)
 {
    struct dinput_input *di = (struct dinput_input*)data;
-   if (!di)
-      return false;
-   return input_joypad_set_rumble(di->joypad, port, effect, strength);
+   if (di)
+      return input_joypad_set_rumble(di->joypad, port, effect, strength);
+   return false;
 }
 
 static const input_device_driver_t *dinput_get_joypad_driver(void *data)

input/drivers/gx_input.c

@@ -304,22 +304,9 @@ static const input_device_driver_t  *gx_input_get_joypad_driver(void *data)
    return gx->joypad;
 }
 
-static void gx_input_grab_mouse(void *data, bool state)
-{
-   (void)data;
-   (void)state;
-}
-
+static void gx_input_grab_mouse(void *data, bool state) { }
 static bool gx_input_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   (void)data;
-   (void)port;
-   (void)effect;
-   (void)strength;
-
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 input_driver_t input_gx = {
    gx_input_init,

input/drivers/psl1ght_input.c

@@ -307,10 +307,7 @@ static bool ps3_input_set_sensor_state(void *data, unsigned port,
 }
 
 static bool ps3_input_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 static const input_device_driver_t *ps3_input_get_joypad_driver(void *data)
 {

input/drivers/rwebinput_input.c

@@ -680,15 +680,7 @@ static void rwebinput_grab_mouse(void *data, bool state)
 }
 
 static bool rwebinput_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   (void)data;
-   (void)port;
-   (void)effect;
-   (void)strength;
-
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 static const input_device_driver_t *rwebinput_get_joypad_driver(void *data)
 {

input/drivers/sdl_input.c

@@ -298,9 +298,9 @@ static bool sdl_set_rumble(void *data, unsigned port,
       enum retro_rumble_effect effect, uint16_t strength)
 {
    sdl_input_t *sdl = (sdl_input_t*)data;
-   if (!sdl)
-      return false;
-   return input_joypad_set_rumble(sdl->joypad, port, effect, strength);
+   if (sdl)
+      return input_joypad_set_rumble(sdl->joypad, port, effect, strength);
+   return false;
 }
 
 static const input_device_driver_t *sdl_get_joypad_driver(void *data)

input/drivers/switch_input.c

@@ -895,12 +895,10 @@ static bool switch_input_set_rumble(void *data, unsigned port,
 {
 #ifdef HAVE_LIBNX
    switch_input_t *sw = (switch_input_t*) data;
-   if (!sw)
-      return false;
-   return input_joypad_set_rumble(sw->joypad, port, effect, strength);
-#else
-   return false;
+   if (sw)
+      return input_joypad_set_rumble(sw->joypad, port, effect, strength);
 #endif
+   return false;
 }
 
 static bool switch_input_set_sensor_state(void *data, unsigned port,

input/drivers/uwp_input.c

@@ -87,9 +87,9 @@ static bool uwp_input_set_rumble(void *data, unsigned port,
       enum retro_rumble_effect effect, uint16_t strength)
 {
    struct uwp_input *uwp = (struct uwp_input*)data;
-   if (!uwp)
-      return false;
-   return input_joypad_set_rumble(uwp->joypad, port, effect, strength);
+   if (uwp)
+      return input_joypad_set_rumble(uwp->joypad, port, effect, strength);
+   return false;
 }
 
 static const input_device_driver_t *uwp_input_get_joypad_driver(void *data)

input/drivers/wiiu_input.c

@@ -211,15 +211,7 @@ static void wiiu_input_grab_mouse(void *data, bool state)
 }
 
 static bool wiiu_input_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   (void)data;
-   (void)port;
-   (void)effect;
-   (void)strength;
-
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 input_driver_t input_wiiu = {
    wiiu_input_init,

input/drivers/x11_input.c

@@ -754,9 +754,9 @@ static bool x_set_rumble(void *data, unsigned port,
       enum retro_rumble_effect effect, uint16_t strength)
 {
    x11_input_t *x11 = (x11_input_t*)data;
-   if (!x11)
-      return false;
-   return input_joypad_set_rumble(x11->joypad, port, effect, strength);
+   if (x11)
+      return input_joypad_set_rumble(x11->joypad, port, effect, strength);
+   return false;
 }
 
 static const input_device_driver_t *x_get_joypad_driver(void *data)

input/drivers/xenon360_input.c

@@ -133,15 +133,7 @@ static void xenon360_input_grab_mouse(void *data, bool state)
 }
 
 static bool xenon360_input_set_rumble(void *data, unsigned port,
-      enum retro_rumble_effect effect, uint16_t strength)
-{
-   (void)data;
-   (void)port;
-   (void)effect;
-   (void)strength;
-
-   return false;
-}
+      enum retro_rumble_effect effect, uint16_t strength) { return false; }
 
 static const input_device_driver_t *xenon360_get_joypad_driver(void *data)
 {