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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/base/cpu.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/base/cpu.c')
-rw-r--r--drivers/base/cpu.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index e38dfed..20537d5 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -21,15 +21,16 @@ EXPORT_SYMBOL(cpu_sysdev_class);
static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices);
#ifdef CONFIG_HOTPLUG_CPU
-static ssize_t show_online(struct sys_device *dev, char *buf)
+static ssize_t show_online(struct sys_device *dev, struct sysdev_attribute *attr,
+ char *buf)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id));
}
-static ssize_t __ref store_online(struct sys_device *dev, const char *buf,
- size_t count)
+static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr,
+ const char *buf, size_t count)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
ssize_t ret;
@@ -80,7 +81,8 @@ static inline void register_cpu_control(struct cpu *cpu)
#ifdef CONFIG_KEXEC
#include <linux/kexec.h>
-static ssize_t show_crash_notes(struct sys_device *dev, char *buf)
+static ssize_t show_crash_notes(struct sys_device *dev, struct sysdev_attribute *attr,
+ char *buf)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
ssize_t rc;
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