In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warning:
drivers/input/mouse/elantech.c: In function 'elantech_use_host_notify':
drivers/input/mouse/elantech.c:1843:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (dmi_get_bios_year() >= 2018)
^
drivers/input/mouse/elantech.c:1845:2: note: here
default:
^~~~~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Notice that -Wimplicit-fallthrough will be globally
enabled in v5.3.
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
---
drivers/input/mouse/elantech.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 73544776a9ed..04fe43440a3c 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1842,6 +1842,7 @@ static bool elantech_use_host_notify(struct psmouse *psmouse,
/* SMbus implementation is stable since 2018 */
if (dmi_get_bios_year() >= 2018)
return true;
+ /* fall through */
default:
psmouse_dbg(psmouse,
"Ignoring SMBus bus provider %d\n", info->bus);
--
2.22.0
