driver core: remove DRIVER_ATTR
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 18 Sep 2017 10:17:57 +0000 (12:17 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 19 Sep 2017 07:20:33 +0000 (09:20 +0200)
DRIVER_ATTR is no longer in use, and driver authors should be using
DRIVER_ATTR_RW() or DRIVER_ATTR_RO() or DRIVER_ATTR_WO() instead in
order to always get the permissions correct.  So remove it so that no
one can use it anymore.

Acked-by: Alan Tull <atull@kernel.org>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation/driver-model/driver.txt
Documentation/filesystems/sysfs.txt
include/linux/device.h

index 4421135826a2e5fb8526288afa06473cb2137027..d661e6f7e6a0cb6b161e30ab1ad800bc8bd581f6 100644 (file)
@@ -196,12 +196,13 @@ struct driver_attribute {
 };
 
 Device drivers can export attributes via their sysfs directories. 
-Drivers can declare attributes using a DRIVER_ATTR macro that works
-identically to the DEVICE_ATTR macro. 
+Drivers can declare attributes using a DRIVER_ATTR_RW and DRIVER_ATTR_RO
+macro that works identically to the DEVICE_ATTR_RW and DEVICE_ATTR_RO
+macros.
 
 Example:
 
-DRIVER_ATTR(debug,0644,show_debug,store_debug);
+DRIVER_ATTR_RW(debug);
 
 This is equivalent to declaring:
 
index 24da7b32c489fd65408dbd8b33f7bc0402ddba0b..9a3658cc399ed459f1e21d613dbf8e5b1b2bc647 100644 (file)
@@ -366,7 +366,8 @@ struct driver_attribute {
 
 Declaring:
 
-DRIVER_ATTR(_name, _mode, _show, _store)
+DRIVER_ATTR_RO(_name)
+DRIVER_ATTR_RW(_name)
 
 Creation/Removal:
 
index c6f27207dbe87392502dba2082e73617bd6d02ac..2bc70ddda09b306c6478561e631e48687eb1a537 100644 (file)
@@ -307,8 +307,6 @@ struct driver_attribute {
                         size_t count);
 };
 
-#define DRIVER_ATTR(_name, _mode, _show, _store) \
-       struct driver_attribute driver_attr_##_name = __ATTR(_name, _mode, _show, _store)
 #define DRIVER_ATTR_RW(_name) \
        struct driver_attribute driver_attr_##_name = __ATTR_RW(_name)
 #define DRIVER_ATTR_RO(_name) \