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 <[email protected]> Tested-by: Guenter Roeck <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
ambv · Jul 16, 2013 · b9b3259 · b9b3259
1 parent ad81f05
commit b9b3259
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Showing 3 changed files with 2 additions and 4 deletions.
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
@@ -79,6 +79,8 @@ struct attribute_group {
 	.show	= _name##_show,					\
 }
 
+#define __ATTR_RW(_name) __ATTR(_name, 0644, _name##_show, _name##_store)
+
 #define __ATTR_NULL { .attr = { .name = NULL } }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC

diff --git a/kernel/events/core.c b/kernel/events/core.c
@@ -6234,8 +6234,6 @@ perf_event_mux_interval_ms_store(struct device *dev,
 	return count;
 }
 
-#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)
-
 static struct device_attribute pmu_dev_attrs[] = {
 	__ATTR_RO(type),
 	__ATTR_RW(perf_event_mux_interval_ms),

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
@@ -232,8 +232,6 @@ static ssize_t stable_pages_required_show(struct device *dev,
 			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[] = {
 	__ATTR_RW(read_ahead_kb),
 	__ATTR_RW(min_ratio),