[RFC PATCH v2 17/78] ui/sdl2.c: add fallthrough pseudo-keyword

[Emmanouil Pitsidianakis]

In preparation of raising -Wimplicit-fallthrough to 5, replace all
fall-through comments with the fallthrough attribute pseudo-keyword.

Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidiana...@linaro.org>
---
 ui/sdl2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/sdl2.c b/ui/sdl2.c
index fbfdb64e90..3d157a14aa 100644
--- a/ui/sdl2.c
+++ b/ui/sdl2.c
@@ -576,78 +576,78 @@ static void handle_mousewheel(SDL_Event *ev)
 static void handle_windowevent(SDL_Event *ev)
 {
     struct sdl2_console *scon = get_scon_from_window(ev->window.windowID);
     bool allow_close = true;
 
     if (!scon) {
         return;
     }
 
     switch (ev->window.event) {
     case SDL_WINDOWEVENT_RESIZED:
         {
             QemuUIInfo info;
             memset(&info, 0, sizeof(info));
             info.width = ev->window.data1;
             info.height = ev->window.data2;
             dpy_set_ui_info(scon->dcl.con, &info, true);
         }
         sdl2_redraw(scon);
         break;
     case SDL_WINDOWEVENT_EXPOSED:
         sdl2_redraw(scon);
         break;
     case SDL_WINDOWEVENT_FOCUS_GAINED:
         win32_kbd_set_grab(gui_grab);
         if (qemu_console_is_graphic(scon->dcl.con)) {
             win32_kbd_set_window(sdl2_win32_get_hwnd(scon));
         }
-        /* fall through */
+        fallthrough;
     case SDL_WINDOWEVENT_ENTER:
         if (!gui_grab && (qemu_input_is_absolute(scon->dcl.con) || 
absolute_enabled)) {
             absolute_mouse_grab(scon);
         }
         /* If a new console window opened using a hotkey receives the
          * focus, SDL sends another KEYDOWN event to the new window,
          * closing the console window immediately after.
          *
          * Work around this by ignoring further hotkey events until a
          * key is released.
          */
         scon->ignore_hotkeys = get_mod_state();
         break;
     case SDL_WINDOWEVENT_FOCUS_LOST:
         if (qemu_console_is_graphic(scon->dcl.con)) {
             win32_kbd_set_window(NULL);
         }
         if (gui_grab && !gui_fullscreen) {
             sdl_grab_end(scon);
         }
         break;
     case SDL_WINDOWEVENT_RESTORED:
         update_displaychangelistener(&scon->dcl, GUI_REFRESH_INTERVAL_DEFAULT);
         break;
     case SDL_WINDOWEVENT_MINIMIZED:
         update_displaychangelistener(&scon->dcl, 500);
         break;
     case SDL_WINDOWEVENT_CLOSE:
         if (qemu_console_is_graphic(scon->dcl.con)) {
             if (scon->opts->has_window_close && !scon->opts->window_close) {
                 allow_close = false;
             }
             if (allow_close) {
                 shutdown_action = SHUTDOWN_ACTION_POWEROFF;
                 qemu_system_shutdown_request(SHUTDOWN_CAUSE_HOST_UI);
             }
         } else {
             SDL_HideWindow(scon->real_window);
             scon->hidden = true;
         }
         break;
     case SDL_WINDOWEVENT_SHOWN:
         scon->hidden = false;
         break;
     case SDL_WINDOWEVENT_HIDDEN:
         scon->hidden = true;
         break;
     }
 }
-- 
2.39.2