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Subject[PATCH] 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>
---
drivers/input/joystick/db9.c | 5 +++++
drivers/input/keyboard/adp5589-keys.c | 1 +
drivers/input/mouse/appletouch.c | 1 +
drivers/input/mouse/cyapa_gen5.c | 1 +
drivers/input/mouse/cyapa_gen6.c | 1 +
drivers/input/mouse/elantech.c | 2 +-
drivers/input/mouse/sermouse.c | 4 +++-
drivers/input/touchscreen/elo.c | 1 +
8 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
index de0dd47..0006da5 100644
--- a/drivers/input/joystick/db9.c
+++ b/drivers/input/joystick/db9.c
@@ -263,6 +263,7 @@ 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];
}
@@ -282,11 +283,14 @@ 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));
@@ -380,6 +384,7 @@ 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 32d94c6..2835fba 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 032d279..0aeed28e8 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 5775d40..14239fb 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 0163978..c1b524a 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 dd85b16..44f57cf 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 8df5266..4431057 100644
--- a/drivers/input/mouse/sermouse.c
+++ b/drivers/input/mouse/sermouse.c
@@ -143,7 +143,8 @@ 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. */
@@ -154,6 +155,7 @@ 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 83433e8..7f2942f 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);
--
2.7.4
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