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Date: Mon, 6 Aug 2018 15:31:37 -0700
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: mark expected switch fall-throughs
On Tue, Jul 03, 2018 at 03:35:44PM -0500, Gustavo A. R. Silva wrote:
> 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@...eddedor.com>
Applied, thank you.
> ---
> 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
>
--
Dmitry
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