From 4a0b2b4dbe1335b8b9886ba3dc85a145d5d938ed Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 1 Jul 2008 18:48:41 +0200 Subject: 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 Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/kernel/sysfs.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/kernel/sysfs.c') diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index c8127f832df..aba0ba95f06 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -28,7 +28,9 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices); /* Time in microseconds we delay before sleeping in the idle loop */ DEFINE_PER_CPU(unsigned long, smt_snooze_delay) = { 100 }; -static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf, +static ssize_t store_smt_snooze_delay(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t count) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); @@ -44,7 +46,9 @@ static ssize_t store_smt_snooze_delay(struct sys_device *dev, const char *buf, return count; } -static ssize_t show_smt_snooze_delay(struct sys_device *dev, char *buf) +static ssize_t show_smt_snooze_delay(struct sys_device *dev, + struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); @@ -152,14 +156,17 @@ static unsigned long write_##NAME(unsigned long val) \ mtspr(ADDRESS, val); \ return 0; \ } \ -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) \ { \ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \ unsigned long val = run_on_cpu(cpu->sysdev.id, read_##NAME, 0); \ return sprintf(buf, "%lx\n", val); \ } \ static ssize_t __used \ - store_##NAME(struct sys_device *dev, const char *buf, size_t count) \ + store_##NAME(struct sys_device *dev, struct sysdev_attribute *attr, \ + const char *buf, size_t count) \ { \ struct cpu *cpu = container_of(dev, struct cpu, sysdev); \ unsigned long val; \ -- cgit v1.2.3