Input: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Warning level 2 was used: -Wimplicit-fallthrough=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

8 files changed, 14 insertions, 2 deletions

diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index 7721cc0bf569..804b1b80a8be 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -259,6 +259,7 @@ static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char
                         db9_saturn_write_sub(port, type, 3, powered, 0);
                         return data[0] = 0xe3;
                 }
+                /* else: fall through */
         default:
                 return data[0];
         }
@@ -278,11 +279,14 @@ static int db9_saturn_report(unsigned char id, unsigned char data[60], struct in
                 switch (data[j]) {
                 case 0x16: /* multi controller (analog 4 axis) */
                         input_report_abs(dev, db9_abs[5], data[j + 6]);
+                        /* fall through */
                 case 0x15: /* mission stick (analog 3 axis) */
                         input_report_abs(dev, db9_abs[3], data[j + 4]);
                         input_report_abs(dev, db9_abs[4], data[j + 5]);
+                        /* fall through */
                 case 0x13: /* racing controller (analog 1 axis) */
                         input_report_abs(dev, db9_abs[2], data[j + 3]);
+                        /* fall through */
                 case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
                 case 0x02: /* digital pad (digital 2 axis + buttons) */
                         input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
@@ -376,6 +380,7 @@ static void db9_timer(struct timer_list *t)
                         input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
                         input_report_abs(dev2, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
                         input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
+                        /* fall through */
 
                 case DB9_MULTI_0802:
 
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 32d94c63dc33..2835fba71c33 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -885,6 +885,7 @@ static int adp5589_probe(struct i2c_client *client,
         switch (id->driver_data) {
         case ADP5585_02:
                 kpad->support_row5 = true;
+                /* fall through */
         case ADP5585_01:
                 kpad->is_adp5585 = true;
                 kpad->var = &const_adp5585;
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index f593ec96c95f..f1e66e257cff 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -472,6 +472,7 @@ static int atp_status_check(struct urb *urb)
                                 dev->info->datalen, dev->urb->actual_length);
                         dev->overflow_warned = true;
                 }
+                /* fall through */
         case -ECONNRESET:
         case -ENOENT:
         case -ESHUTDOWN:
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index 5775d40b3d53..14239fbd72cf 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -2554,6 +2554,7 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa)
                 }
 
                 cyapa->state = CYAPA_STATE_GEN5_APP;
+                /* fall through */
 
         case CYAPA_STATE_GEN5_APP:
                 /*
diff --git a/drivers/input/mouse/cyapa_gen6.c b/drivers/input/mouse/cyapa_gen6.c
index 016397850b1b..c1b524ab4623 100644
--- a/drivers/input/mouse/cyapa_gen6.c
+++ b/drivers/input/mouse/cyapa_gen6.c
@@ -680,6 +680,7 @@ static int cyapa_gen6_operational_check(struct cyapa *cyapa)
                 }
 
                 cyapa->state = CYAPA_STATE_GEN6_APP;
+                /* fall through */
 
         case CYAPA_STATE_GEN6_APP:
                 /*
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index fb4d902c4403..d443067fc837 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -340,7 +340,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
                  */
                 if (packet[3] & 0x80)
                         fingers = 4;
-                /* pass through... */
+                /* fall through */
         case 1:
                 /*
                  * byte 1:  .   .   .   .  x11 x10 x9  x8
diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c
index d27816ac038f..3e8fb8136452 100644
--- a/drivers/input/mouse/sermouse.c
+++ b/drivers/input/mouse/sermouse.c
@@ -139,7 +139,8 @@ static void sermouse_process_ms(struct sermouse *sermouse, signed char data)
                         switch (sermouse->type) {
 
                                 case SERIO_MS:
-                                         sermouse->type = SERIO_MP;
+                                        sermouse->type = SERIO_MP;
+                                        /* fall through */
 
                                 case SERIO_MP:
                                         if ((data >> 2) & 3) break;     /* M++ Wireless Extension packet. */
@@ -150,6 +151,7 @@ static void sermouse_process_ms(struct sermouse *sermouse, signed char data)
                                 case SERIO_MZP:
                                 case SERIO_MZPP:
                                         input_report_key(dev, BTN_SIDE,   (data >> 5) & 1);
+                                        /* fall through */
 
                                 case SERIO_MZ:
                                         input_report_key(dev, BTN_MIDDLE, (data >> 4) & 1);
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
index 83433e8efff7..7f2942f3cec6 100644
--- a/drivers/input/touchscreen/elo.c
+++ b/drivers/input/touchscreen/elo.c
@@ -352,6 +352,7 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
 
         case 1: /* 6-byte protocol */
                 input_set_abs_params(input_dev, ABS_PRESSURE, 0, 15, 0, 0);
+                /* fall through */
 
         case 2: /* 4-byte protocol */
                 input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);