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Date: Mon, 5 Jan 2015 10:50:31 -0500
From: Benjamin Tissoires <benjamin.tissoires@...hat.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: linux-input@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
Mathias Gottschlag <mgottschlag@...il.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: psmouse - use IS_ENABLED instead of homegrown code
On Dec 29 2014 or thereabouts, Dmitry Torokhov wrote:
> Instead of having various protocols provide <protocol>_supported()
> functions, let's use IS_ENABLED() macro that works well in "if" statements.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cheers,
Benjamin
> drivers/input/mouse/cypress_ps2.c | 5 -----
> drivers/input/mouse/cypress_ps2.h | 5 -----
> drivers/input/mouse/focaltech.c | 10 ----------
> drivers/input/mouse/focaltech.h | 1 -
> drivers/input/mouse/psmouse-base.c | 6 +++---
> drivers/input/mouse/synaptics.c | 10 ----------
> drivers/input/mouse/synaptics.h | 1 -
> 7 files changed, 3 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
> index 8af34ff..6e5f70b 100644
> --- a/drivers/input/mouse/cypress_ps2.c
> +++ b/drivers/input/mouse/cypress_ps2.c
> @@ -710,8 +710,3 @@ err_exit:
>
> return -1;
> }
> -
> -bool cypress_supported(void)
> -{
> - return true;
> -}
> diff --git a/drivers/input/mouse/cypress_ps2.h b/drivers/input/mouse/cypress_ps2.h
> index 4720f21..81f68aa 100644
> --- a/drivers/input/mouse/cypress_ps2.h
> +++ b/drivers/input/mouse/cypress_ps2.h
> @@ -172,7 +172,6 @@ struct cytp_data {
> #ifdef CONFIG_MOUSE_PS2_CYPRESS
> int cypress_detect(struct psmouse *psmouse, bool set_properties);
> int cypress_init(struct psmouse *psmouse);
> -bool cypress_supported(void);
> #else
> inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
> {
> @@ -182,10 +181,6 @@ inline int cypress_init(struct psmouse *psmouse)
> {
> return -ENOSYS;
> }
> -inline bool cypress_supported(void)
> -{
> - return 0;
> -}
> #endif /* CONFIG_MOUSE_PS2_CYPRESS */
>
> #endif /* _CYPRESS_PS2_H */
> diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
> index fca38ba..757f78a 100644
> --- a/drivers/input/mouse/focaltech.c
> +++ b/drivers/input/mouse/focaltech.c
> @@ -424,11 +424,6 @@ fail:
> return error;
> }
>
> -bool focaltech_supported(void)
> -{
> - return true;
> -}
> -
> #else /* CONFIG_MOUSE_PS2_FOCALTECH */
>
> int focaltech_init(struct psmouse *psmouse)
> @@ -438,9 +433,4 @@ int focaltech_init(struct psmouse *psmouse)
> return 0;
> }
>
> -bool focaltech_supported(void)
> -{
> - return false;
> -}
> -
> #endif /* CONFIG_MOUSE_PS2_FOCALTECH */
> diff --git a/drivers/input/mouse/focaltech.h b/drivers/input/mouse/focaltech.h
> index 71870a9..ca61ebf 100644
> --- a/drivers/input/mouse/focaltech.h
> +++ b/drivers/input/mouse/focaltech.h
> @@ -19,6 +19,5 @@
>
> int focaltech_detect(struct psmouse *psmouse, bool set_properties);
> int focaltech_init(struct psmouse *psmouse);
> -bool focaltech_supported(void);
>
> #endif
> diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
> index 68469fe..4ccd01d 100644
> --- a/drivers/input/mouse/psmouse-base.c
> +++ b/drivers/input/mouse/psmouse-base.c
> @@ -727,7 +727,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
> if (psmouse_do_detect(focaltech_detect, psmouse, set_properties) == 0) {
> if (max_proto > PSMOUSE_IMEX) {
> if (!set_properties || focaltech_init(psmouse) == 0) {
> - if (focaltech_supported())
> + if (IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH))
> return PSMOUSE_FOCALTECH;
> /*
> * Note that we need to also restrict
> @@ -776,7 +776,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
> * Try activating protocol, but check if support is enabled first, since
> * we try detecting Synaptics even when protocol is disabled.
> */
> - if (synaptics_supported() &&
> + if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) &&
> (!set_properties || synaptics_init(psmouse) == 0)) {
> return PSMOUSE_SYNAPTICS;
> }
> @@ -801,7 +801,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
> */
> if (max_proto > PSMOUSE_IMEX &&
> cypress_detect(psmouse, set_properties) == 0) {
> - if (cypress_supported()) {
> + if (IS_ENABLED(CONFIG_MOUSE_PS2_CYPRESS)) {
> if (cypress_init(psmouse) == 0)
> return PSMOUSE_CYPRESS;
>
> diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
> index f947292..094bf64 100644
> --- a/drivers/input/mouse/synaptics.c
> +++ b/drivers/input/mouse/synaptics.c
> @@ -1817,11 +1817,6 @@ int synaptics_init_relative(struct psmouse *psmouse)
> return __synaptics_init(psmouse, false);
> }
>
> -bool synaptics_supported(void)
> -{
> - return true;
> -}
> -
> #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
>
> void __init synaptics_module_init(void)
> @@ -1833,9 +1828,4 @@ int synaptics_init(struct psmouse *psmouse)
> return -ENOSYS;
> }
>
> -bool synaptics_supported(void)
> -{
> - return false;
> -}
> -
> #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
> diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
> index 1bd01f2..feb28a5 100644
> --- a/drivers/input/mouse/synaptics.h
> +++ b/drivers/input/mouse/synaptics.h
> @@ -191,6 +191,5 @@ int synaptics_detect(struct psmouse *psmouse, bool set_properties);
> int synaptics_init(struct psmouse *psmouse);
> int synaptics_init_relative(struct psmouse *psmouse);
> void synaptics_reset(struct psmouse *psmouse);
> -bool synaptics_supported(void);
>
> #endif /* _SYNAPTICS_H */
> --
> 2.2.0.rc0.207.ga3a616c
>
>
> --
> Dmitry
--
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