linux-kernel - [PATCH 1/5] sysfs: add macro BIN_ATTR_ADMIN

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Message-Id: <20241202-sysfs-const-bin_attr-admin_wo-v1-1-f489116210bf@weissschuh.net>
Date: Mon, 02 Dec 2024 20:00:36 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>, 
 Alexander Gordeev <agordeev@...ux.ibm.com>, 
 Christian Borntraeger <borntraeger@...ux.ibm.com>, 
 Sven Schnelle <svens@...ux.ibm.com>, Michael Ellerman <mpe@...erman.id.au>, 
 Nicholas Piggin <npiggin@...il.com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Naveen N Rao <naveen@...nel.org>, Madhavan Srinivasan <maddy@...ux.ibm.com>, 
 Tzung-Bi Shih <tzungbi@...nel.org>, Brian Norris <briannorris@...omium.org>, 
 Julius Werner <jwerner@...omium.org>, 
 "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>, 
 "Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org, 
 linuxppc-dev@...ts.ozlabs.org, chrome-platform@...ts.linux.dev, 
 linux-scsi@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 1/5] sysfs: add macro BIN_ATTR_ADMIN_WO()

The macros BIN_ATTR_RO/BIN_ATTR_WO/BIN_ATTR_WR and
BIN_ATTR_ADMIN_RO/BIN_ATTR_ADMIN_RW already exist.
To complete the collection also add BIN_ATTR_ADMIN_WO.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 include/linux/sysfs.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 0f2fcd244523f050c5286f19d4fe1846506f9214..bcae49105e54a79b7d8a610f17212cb5920c205a 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -385,12 +385,18 @@ struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
 #define __BIN_ATTR_ADMIN_RO(_name, _size)				\
 	__BIN_ATTR(_name, 0400, _name##_read, NULL, _size)

+#define __BIN_ATTR_ADMIN_WO(_name, _size)				\
+	__BIN_ATTR(_name, 0200, NULL, _name##_write, _size)
+
 #define __BIN_ATTR_ADMIN_RW(_name, _size)					\
 	__BIN_ATTR(_name, 0600, _name##_read, _name##_write, _size)

 #define BIN_ATTR_ADMIN_RO(_name, _size)					\
 struct bin_attribute bin_attr_##_name = __BIN_ATTR_ADMIN_RO(_name, _size)

+#define BIN_ATTR_ADMIN_WO(_name, _size)					\
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_ADMIN_WO(_name, _size)
+
 #define BIN_ATTR_ADMIN_RW(_name, _size)					\
 struct bin_attribute bin_attr_##_name = __BIN_ATTR_ADMIN_RW(_name, _size)

-- 
2.47.1