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Commit b9b32597 authored Jul 14, 2013 by Greg Kroah-Hartman

sysfs.h: add __ATTR_RW() macro



A number of parts of the kernel created their own version of this, might
as well have the sysfs core provide it instead.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent ad81f054

include/linux/sysfs.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -79,6 +79,8 @@ struct attribute_group {
	.show = _name##_show, \		.show = _name##_show, \
	}		}

			#define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store)

	#define __ATTR_NULL { .attr = { .name = NULL } }		#define __ATTR_NULL { .attr = { .name = NULL } }

	#ifdef CONFIG_DEBUG_LOCK_ALLOC		#ifdef CONFIG_DEBUG_LOCK_ALLOC

kernel/events/core.c

+0 −2

Original line number	Original line	Diff line number	Diff line
	@@ -6234,8 +6234,6 @@ perf_event_mux_interval_ms_store(struct device *dev,
	return count;		return count;
	}		}

	#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)

	static struct device_attribute pmu_dev_attrs[] = {		static struct device_attribute pmu_dev_attrs[] = {
	__ATTR_RO(type),		__ATTR_RO(type),
	__ATTR_RW(perf_event_mux_interval_ms),		__ATTR_RW(perf_event_mux_interval_ms),

mm/backing-dev.c

+0 −2

Original line number	Original line	Diff line number	Diff line
	@@ -232,8 +232,6 @@ static ssize_t stable_pages_required_show(struct device *dev,
	bdi_cap_stable_pages_required(bdi) ? 1 : 0);		bdi_cap_stable_pages_required(bdi) ? 1 : 0);
	}		}

	#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)

	static struct device_attribute bdi_dev_attrs[] = {		static struct device_attribute bdi_dev_attrs[] = {
	__ATTR_RW(read_ahead_kb),		__ATTR_RW(read_ahead_kb),
	__ATTR_RW(min_ratio),		__ATTR_RW(min_ratio),