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Date: Mon, 07 Oct 2013 23:27:07 +0200
From: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH 03/11] PNP: convert bus code to use dev_groups
On 10/7/2013 8:55 AM, Greg Kroah-Hartman wrote:
> The dev_attrs field of struct bus_type is going away soon, dev_groups
> should be used instead. This converts the PNP bus code to use the
> correct field.
>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
>
> Rafael, I can take this through my driver-core tree if you like, just let
> me know what would be the easiest for you.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
and please merge through driver-core.
Thanks!
> drivers/pnp/base.h | 2 +-
> drivers/pnp/driver.c | 2 +-
> drivers/pnp/interface.c | 43 ++++++++++++++++++++++++++-----------------
> 3 files changed, 28 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
> index ffd53e3..c8873b0 100644
> --- a/drivers/pnp/base.h
> +++ b/drivers/pnp/base.h
> @@ -4,7 +4,7 @@
> */
>
> extern spinlock_t pnp_lock;
> -extern struct device_attribute pnp_interface_attrs[];
> +extern const struct attribute_group *pnp_dev_groups[];
> void *pnp_alloc(long size);
>
> int pnp_register_protocol(struct pnp_protocol *protocol);
> diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
> index a39ee38..6936e0a 100644
> --- a/drivers/pnp/driver.c
> +++ b/drivers/pnp/driver.c
> @@ -246,7 +246,7 @@ struct bus_type pnp_bus_type = {
> .remove = pnp_device_remove,
> .shutdown = pnp_device_shutdown,
> .pm = &pnp_bus_dev_pm_ops,
> - .dev_attrs = pnp_interface_attrs,
> + .dev_groups = pnp_dev_groups,
> };
>
> int pnp_register_driver(struct pnp_driver *drv)
> diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
> index 0c20131..e6c403b 100644
> --- a/drivers/pnp/interface.c
> +++ b/drivers/pnp/interface.c
> @@ -203,8 +203,8 @@ static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
> }
> }
>
> -static ssize_t pnp_show_options(struct device *dmdev,
> - struct device_attribute *attr, char *buf)
> +static ssize_t options_show(struct device *dmdev, struct device_attribute *attr,
> + char *buf)
> {
> struct pnp_dev *dev = to_pnp_dev(dmdev);
> pnp_info_buffer_t *buffer;
> @@ -241,10 +241,10 @@ static ssize_t pnp_show_options(struct device *dmdev,
> kfree(buffer);
> return ret;
> }
> +static DEVICE_ATTR_RO(options);
>
> -static ssize_t pnp_show_current_resources(struct device *dmdev,
> - struct device_attribute *attr,
> - char *buf)
> +static ssize_t resources_show(struct device *dmdev,
> + struct device_attribute *attr, char *buf)
> {
> struct pnp_dev *dev = to_pnp_dev(dmdev);
> pnp_info_buffer_t *buffer;
> @@ -331,9 +331,9 @@ static char *pnp_get_resource_value(char *buf,
> return buf;
> }
>
> -static ssize_t pnp_set_current_resources(struct device *dmdev,
> - struct device_attribute *attr,
> - const char *ubuf, size_t count)
> +static ssize_t resources_store(struct device *dmdev,
> + struct device_attribute *attr, const char *ubuf,
> + size_t count)
> {
> struct pnp_dev *dev = to_pnp_dev(dmdev);
> char *buf = (void *)ubuf;
> @@ -434,9 +434,10 @@ done:
> return retval;
> return count;
> }
> +static DEVICE_ATTR_RW(resources);
>
> -static ssize_t pnp_show_current_ids(struct device *dmdev,
> - struct device_attribute *attr, char *buf)
> +static ssize_t id_show(struct device *dmdev, struct device_attribute *attr,
> + char *buf)
> {
> char *str = buf;
> struct pnp_dev *dev = to_pnp_dev(dmdev);
> @@ -448,12 +449,20 @@ static ssize_t pnp_show_current_ids(struct device *dmdev,
> }
> return (str - buf);
> }
> +static DEVICE_ATTR_RO(id);
>
> -struct device_attribute pnp_interface_attrs[] = {
> - __ATTR(resources, S_IRUGO | S_IWUSR,
> - pnp_show_current_resources,
> - pnp_set_current_resources),
> - __ATTR(options, S_IRUGO, pnp_show_options, NULL),
> - __ATTR(id, S_IRUGO, pnp_show_current_ids, NULL),
> - __ATTR_NULL,
> +static struct attribute *pnp_dev_attrs[] = {
> + &dev_attr_resources.attr,
> + &dev_attr_options.attr,
> + &dev_attr_id.attr,
> + NULL,
> +};
> +
> +static const struct attribute_group pnp_dev_group = {
> + .attrs = pnp_dev_attrs,
> +};
> +
> +const struct attribute_group *pnp_dev_groups[] = {
> + &pnp_dev_group,
> + NULL,
> };
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