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sysdev: Pass the attribute to the low level sysdev show/store function

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This allow to dynamically generate attributes and share show/store
functions between attributes. Right now most attributes are generated
by special macros and lots of duplicated code. With the attribute
passed it's instead possible to attach some data to the attribute
and then use that in shared low level functions to do different things.

I need this for the dynamically generated bank attributes in the x86
machine check code, but it'll allow some further cleanups.

I converted all users in tree to the new show/store prototype. It's a single
huge patch to avoid unbisectable sections.

Runtime tested: x86-32, x86-64
Compiled only: ia64, powerpc
Not compile tested/only grep converted: sh, arm, avr32

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andi Kleen
2008-07-01 18:48:41 +02:00
committed by Greg Kroah-Hartman
parent 36ce6dad6e
commit 4a0b2b4dbe
24 changed files with 239 additions and 112 deletions
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8
kernel/time/clocksource.c
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@@ -376,7 +376,8 @@ void clocksource_unregister(struct clocksource *cs)
* Provides sysfs interface for listing current clocksource.
*/
static ssize_t
sysfs_show_current_clocksources(struct sys_device *dev, char *buf)
sysfs_show_current_clocksources(struct sys_device *dev,
struct sysdev_attribute *attr, char *buf)
{
ssize_t count = 0;
@@ -397,6 +398,7 @@ sysfs_show_current_clocksources(struct sys_device *dev, char *buf)
* clocksource selction.
*/
static ssize_t sysfs_override_clocksource(struct sys_device *dev,
struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct clocksource *ovr = NULL;
@@ -449,7 +451,9 @@ static ssize_t sysfs_override_clocksource(struct sys_device *dev,
* Provides sysfs interface for listing registered clocksources
*/
static ssize_t
sysfs_show_available_clocksources(struct sys_device *dev, char *buf)
sysfs_show_available_clocksources(struct sys_device *dev,
struct sysdev_attribute *attr,
char *buf)
{
struct clocksource *src;
ssize_t count = 0;