sysdev: Pass the attribute to the low level sysdev show/store function
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>
diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c
index b642648..c539c68 100644
--- a/arch/ia64/kernel/err_inject.c
+++ b/arch/ia64/kernel/err_inject.c
@@ -55,7 +55,8 @@
#define show(name) \
static ssize_t \
-show_##name(struct sys_device *dev, char *buf) \
+show_##name(struct sys_device *dev, struct sysdev_attribute *attr, \
+ char *buf) \
{ \
u32 cpu=dev->id; \
return sprintf(buf, "%lx\n", name[cpu]); \
@@ -63,7 +64,8 @@
#define store(name) \
static ssize_t \
-store_##name(struct sys_device *dev, const char *buf, size_t size) \
+store_##name(struct sys_device *dev, struct sysdev_attribute *attr, \
+ const char *buf, size_t size) \
{ \
unsigned int cpu=dev->id; \
name[cpu] = simple_strtoull(buf, NULL, 16); \
@@ -76,7 +78,8 @@
* processor. The cpu number in driver is only used for storing data.
*/
static ssize_t
-store_call_start(struct sys_device *dev, const char *buf, size_t size)
+store_call_start(struct sys_device *dev, struct sysdev_attribute *attr,
+ const char *buf, size_t size)
{
unsigned int cpu=dev->id;
unsigned long call_start = simple_strtoull(buf, NULL, 16);
@@ -124,14 +127,16 @@
store(err_type_info)
static ssize_t
-show_virtual_to_phys(struct sys_device *dev, char *buf)
+show_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr,
+ char *buf)
{
unsigned int cpu=dev->id;
return sprintf(buf, "%lx\n", phys_addr[cpu]);
}
static ssize_t
-store_virtual_to_phys(struct sys_device *dev, const char *buf, size_t size)
+store_virtual_to_phys(struct sys_device *dev, struct sysdev_attribute *attr,
+ const char *buf, size_t size)
{
unsigned int cpu=dev->id;
u64 virt_addr=simple_strtoull(buf, NULL, 16);
@@ -154,7 +159,8 @@
store(err_struct_info)
static ssize_t
-show_err_data_buffer(struct sys_device *dev, char *buf)
+show_err_data_buffer(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
unsigned int cpu=dev->id;
@@ -165,7 +171,9 @@
}
static ssize_t
-store_err_data_buffer(struct sys_device *dev, const char *buf, size_t size)
+store_err_data_buffer(struct sys_device *dev,
+ struct sysdev_attribute *attr,
+ const char *buf, size_t size)
{
unsigned int cpu=dev->id;
int ret;