* [PATCH v3 2/3] PM: Make *_DEV_PM_OPS macros use __maybe_unused
2020-07-16 12:42 [PATCH v3 1/3] PM: introduce pm_ptr() macro Paul Cercueil
@ 2020-07-16 12:42 ` Paul Cercueil
2020-07-16 12:42 ` [PATCH v3 3/3] mmc: jz4740: Use pm_ptr() macro Paul Cercueil
2020-07-27 11:54 ` [PATCH v3 1/3] PM: introduce " Rafael J. Wysocki
2 siblings, 0 replies; 4+ messages in thread
From: Paul Cercueil @ 2020-07-16 12:42 UTC (permalink / raw)
To: Rafael J . Wysocki, Len Brown, Pavel Machek
Cc: Ulf Hansson, od, linux-mmc, linux-kernel, linux-pm, Paul Cercueil
This way, when the dev_pm_ops instance is not referenced anywhere, it
will simply be dropped by the compiler without a warning.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
---
Notes:
v2: No change
v3: Rebase on 5.8-rc5 and add Ulf's Reviewed-by
include/linux/pm.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 1f227c518db3..a30a4b54df52 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -351,7 +351,7 @@ struct dev_pm_ops {
* to RAM and hibernation.
*/
#define SIMPLE_DEV_PM_OPS(name, suspend_fn, resume_fn) \
-const struct dev_pm_ops name = { \
+const struct dev_pm_ops __maybe_unused name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
}
@@ -369,7 +369,7 @@ const struct dev_pm_ops name = { \
* .runtime_resume(), respectively (and analogously for hibernation).
*/
#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
-const struct dev_pm_ops name = { \
+const struct dev_pm_ops __maybe_unused name = { \
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
}
--
2.27.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH v3 3/3] mmc: jz4740: Use pm_ptr() macro
2020-07-16 12:42 [PATCH v3 1/3] PM: introduce pm_ptr() macro Paul Cercueil
2020-07-16 12:42 ` [PATCH v3 2/3] PM: Make *_DEV_PM_OPS macros use __maybe_unused Paul Cercueil
@ 2020-07-16 12:42 ` Paul Cercueil
2020-07-27 11:54 ` [PATCH v3 1/3] PM: introduce " Rafael J. Wysocki
2 siblings, 0 replies; 4+ messages in thread
From: Paul Cercueil @ 2020-07-16 12:42 UTC (permalink / raw)
To: Rafael J . Wysocki, Len Brown, Pavel Machek
Cc: Ulf Hansson, od, linux-mmc, linux-kernel, linux-pm, Paul Cercueil
Use the newly introduced pm_ptr() macro to simplify the code.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
---
Notes:
v2: Use pm_ptr() macro instead of pm_sleep_ptr()
v3: Rebase on 5.8-rc5 and add Ulf's Reviewed-by
drivers/mmc/host/jz4740_mmc.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index cba7a6fcd178..447552ac25c4 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -1108,24 +1108,18 @@ static int jz4740_mmc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-
-static int jz4740_mmc_suspend(struct device *dev)
+static int __maybe_unused jz4740_mmc_suspend(struct device *dev)
{
return pinctrl_pm_select_sleep_state(dev);
}
-static int jz4740_mmc_resume(struct device *dev)
+static int __maybe_unused jz4740_mmc_resume(struct device *dev)
{
return pinctrl_select_default_state(dev);
}
static SIMPLE_DEV_PM_OPS(jz4740_mmc_pm_ops, jz4740_mmc_suspend,
jz4740_mmc_resume);
-#define JZ4740_MMC_PM_OPS (&jz4740_mmc_pm_ops)
-#else
-#define JZ4740_MMC_PM_OPS NULL
-#endif
static struct platform_driver jz4740_mmc_driver = {
.probe = jz4740_mmc_probe,
@@ -1133,7 +1127,7 @@ static struct platform_driver jz4740_mmc_driver = {
.driver = {
.name = "jz4740-mmc",
.of_match_table = of_match_ptr(jz4740_mmc_of_match),
- .pm = JZ4740_MMC_PM_OPS,
+ .pm = pm_ptr(&jz4740_mmc_pm_ops),
},
};
--
2.27.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v3 1/3] PM: introduce pm_ptr() macro
2020-07-16 12:42 [PATCH v3 1/3] PM: introduce pm_ptr() macro Paul Cercueil
2020-07-16 12:42 ` [PATCH v3 2/3] PM: Make *_DEV_PM_OPS macros use __maybe_unused Paul Cercueil
2020-07-16 12:42 ` [PATCH v3 3/3] mmc: jz4740: Use pm_ptr() macro Paul Cercueil
@ 2020-07-27 11:54 ` Rafael J. Wysocki
2 siblings, 0 replies; 4+ messages in thread
From: Rafael J. Wysocki @ 2020-07-27 11:54 UTC (permalink / raw)
To: Paul Cercueil
Cc: Rafael J . Wysocki, Len Brown, Pavel Machek, Ulf Hansson, od,
linux-mmc, Linux Kernel Mailing List, Linux PM
On Thu, Jul 16, 2020 at 2:43 PM Paul Cercueil <paul@crapouillou.net> wrote:
>
> This macro is analogous to the infamous of_match_ptr(). If CONFIG_PM
> is enabled, this macro will resolve to its argument, otherwise to NULL.
>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> ---
>
> Notes:
> v2: Remove pm_sleep_ptr() macro
> v3: Rebase on 5.8-rc5 and add Ulf's Reviewed-by
>
> include/linux/pm.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index 121c104a4090..1f227c518db3 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -374,6 +374,12 @@ const struct dev_pm_ops name = { \
> SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
> }
>
> +#ifdef CONFIG_PM
> +#define pm_ptr(_ptr) (_ptr)
> +#else
> +#define pm_ptr(_ptr) NULL
> +#endif
> +
> /*
> * PM_EVENT_ messages
> *
> --
Applied along with the [2-3/3] as 5.9 material, thanks!
^ permalink raw reply [flat|nested] 4+ messages in thread