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authorAndi Kleen <andi@firstfloor.org>2008-07-01 18:48:41 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2008-07-21 21:55:02 -0700
commit4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed (patch)
treec2d3a0f86ade5061a1bb9a14aa702323d729fd54 /drivers/cpuidle/sysfs.c
parent36ce6dad6e3cb3f050ed41e0beac0070d2062b25 (diff)
downloadop-kernel-dev-4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed.zip
op-kernel-dev-4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed.tar.gz
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>
Diffstat (limited to 'drivers/cpuidle/sysfs.c')
-rw-r--r--drivers/cpuidle/sysfs.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index e949618..31a0e0b 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -21,7 +21,8 @@ static int __init cpuidle_sysfs_setup(char *unused)
}
__setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup);
-static ssize_t show_available_governors(struct sys_device *dev, char *buf)
+static ssize_t show_available_governors(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t i = 0;
struct cpuidle_governor *tmp;
@@ -39,7 +40,8 @@ out:
return i;
}
-static ssize_t show_current_driver(struct sys_device *dev, char *buf)
+static ssize_t show_current_driver(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t ret;
@@ -53,7 +55,8 @@ static ssize_t show_current_driver(struct sys_device *dev, char *buf)
return ret;
}
-static ssize_t show_current_governor(struct sys_device *dev, char *buf)
+static ssize_t show_current_governor(struct sys_device *dev,
+ struct sysdev_attribute *attr, char *buf)
{
ssize_t ret;
@@ -68,6 +71,7 @@ static ssize_t show_current_governor(struct sys_device *dev, char *buf)
}
static ssize_t store_current_governor(struct sys_device *dev,
+ struct sysdev_attribute *attr,
const char *buf, size_t count)
{
char gov_name[CPUIDLE_NAME_LEN];
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