sysfs: add BIN_ATTR_WO() macro (7f905761) · Commits · 戴 / test

This variant was missing from sysfs.h, I guess no one noticed it before. Turns out the powerpc secure variable code can use it, so add it to the tree for it, and potentially others to take advantage of, instead of open-coding it. Reported-by:

Nayna Jain <nayna@linux.ibm.com> Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20190826150153.GD18418@kroah.com Signed-off-by:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/sysfs.h

+9 −0

Original line number	Diff line number	Diff line
		@@ -196,6 +196,12 @@ struct bin_attribute {
		.size = _size, \
		}

		#define __BIN_ATTR_WO(_name) { \
		.attr = { .name = __stringify(_name), .mode = 0200 }, \
		.store = _name##_store, \
		.size = _size, \
		}

		#define __BIN_ATTR_RW(_name, _size) \
		__BIN_ATTR(_name, 0644, _name##_read, _name##_write, _size)

		@@ -208,6 +214,9 @@ struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
		#define BIN_ATTR_RO(_name, _size) \
		struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)

		#define BIN_ATTR_WO(_name, _size) \
		struct bin_attribute bin_attr_##_name = __BIN_ATTR_WO(_name, _size)

		#define BIN_ATTR_RW(_name, _size) \
		struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)

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