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>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 3f6d9b0a6abe..199cd97e32e6 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -34,7 +34,8 @@
 static SYSDEV_ATTR(_name, 0444, show_##_name, NULL)
 
 #define define_id_show_func(name)                               \
-static ssize_t show_##name(struct sys_device *dev, char *buf)   \
+static ssize_t show_##name(struct sys_device *dev,              \
+                struct sysdev_attribute *attr, char *buf)       \
 {                                                               \
         unsigned int cpu = dev->id;                             \
         return sprintf(buf, "%d\n", topology_##name(cpu));      \
@@ -59,14 +60,17 @@ static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf)
 
 #ifdef arch_provides_topology_pointers
 #define define_siblings_show_map(name)                                  \
-static ssize_t show_##name(struct sys_device *dev, char *buf)   \
+static ssize_t show_##name(struct sys_device *dev,                      \
+                           struct sysdev_attribute *attr, char *buf)    \
 {                                                                       \
         unsigned int cpu = dev->id;                                     \
         return show_cpumap(0, &(topology_##name(cpu)), buf);            \
 }
 
 #define define_siblings_show_list(name)                                 \
-static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
+static ssize_t show_##name##_list(struct sys_device *dev,               \
+                                  struct sysdev_attribute *attr,        \
+                                  char *buf)                            \
 {                                                                       \
         unsigned int cpu = dev->id;                                     \
         return show_cpumap(1, &(topology_##name(cpu)), buf);            \
@@ -74,7 +78,8 @@ static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
 
 #else
 #define define_siblings_show_map(name)                                  \
-static ssize_t show_##name(struct sys_device *dev, char *buf)   \
+static ssize_t show_##name(struct sys_device *dev,                      \
+                           struct sysdev_attribute *attr, char *buf)    \
 {                                                                       \
         unsigned int cpu = dev->id;                                     \
         cpumask_t mask = topology_##name(cpu);                          \
@@ -82,7 +87,9 @@ static ssize_t show_##name(struct sys_device *dev, char *buf)	\
 }
 
 #define define_siblings_show_list(name)                                 \
-static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \
+static ssize_t show_##name##_list(struct sys_device *dev,               \
+                                  struct sysdev_attribute *attr,        \
+                                  char *buf)                            \
 {                                                                       \
         unsigned int cpu = dev->id;                                     \
         cpumask_t mask = topology_##name(cpu);                          \