[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <cc426e67-106d-4b0f-b4ec-f8fbf089770e@quicinc.com>
Date: Fri, 21 Feb 2025 11:34:35 +0800
From: Zijun Hu <quic_zijuhu@...cinc.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Greg Kroah-Hartman
<gregkh@...uxfoundation.org>,
Bartosz Golaszewski
<bartosz.golaszewski@...aro.org>,
Raag Jadav <raag.jadav@...el.com>, <linux-kernel@...r.kernel.org>,
<linux-gpio@...r.kernel.org>
CC: "Rafael J. Wysocki" <rafael@...nel.org>,
Danilo Krummrich
<dakr@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz
Golaszewski <brgl@...ev.pl>
Subject: Re: [PATCH v2 2/3] devres: Add devm_is_action_added() helper
On 2/21/2025 12:20 AM, Andy Shevchenko wrote:
> In some code we would like to know if the action in device managed resources
> was added by devm_add_action() family of calls. Introduce a helper for that.
>
> Reviewed-by: Raag Jadav <raag.jadav@...el.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
> drivers/base/devres.c | 11 +++++++++++
> include/linux/device/devres.h | 2 ++
> 2 files changed, 13 insertions(+)
>
> diff --git a/drivers/base/devres.c b/drivers/base/devres.c
> index 93e7779ef21e..7c2babfa9396 100644
> --- a/drivers/base/devres.c
> +++ b/drivers/base/devres.c
> @@ -749,6 +749,17 @@ int __devm_add_action(struct device *dev, void (*action)(void *), void *data, co
> }
> EXPORT_SYMBOL_GPL(__devm_add_action);
>
> +bool devm_is_action_added(struct device *dev, void (*action)(void *), void *data)
> +{
> + struct action_devres devres = {
> + .data = data,
> + .action = action,
> + };
> +
> + return devres_find(dev, devm_action_release, devm_action_match, &devres);
> +}
> +EXPORT_SYMBOL_GPL(devm_is_action_added);
> +
> /**
> * devm_remove_action_nowarn() - removes previously added custom action
> * @dev: Device that owns the action
> diff --git a/include/linux/device/devres.h b/include/linux/device/devres.h
> index 9cd1787ef28e..ae696d10faff 100644
> --- a/include/linux/device/devres.h
> +++ b/include/linux/device/devres.h
> @@ -165,4 +165,6 @@ static inline int __devm_add_action_or_reset(struct device *dev, void (*action)(
> #define devm_add_action_or_reset(dev, action, data) \
> __devm_add_action_or_reset(dev, action, data, #action)
>
> +bool devm_is_action_added(struct device *dev, void (*action)(void *), void *data);
> +
> #endif /* _DEVICE_DEVRES_H_ */
Reviewed-by: Zijun Hu <quic_zijuhu@...cinc.com>
Powered by blists - more mailing lists