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x86, MCE, AMD: Hide interrupt_enable sysfs node 

Depending on whether the box supports the APIC LVT interrupt for
thresholding, we want to show the 'interrupt_enable' sysfs node or not.
Make that the case by adding it to the default sysfs attributes only if
it is supported.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2012-04-16 18:20:36 +02:00
parent f227d4306c
commit d26ecc4894
1 changed files with 7 additions and 2 deletions
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9
arch/x86/kernel/cpu/mcheck/mce_amd.c
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@ -421,10 +421,10 @@ RW_ATTR(threshold_limit);
RW_ATTR(error_count);
static struct attribute *default_attrs[] = {
&interrupt_enable.attr,
&threshold_limit.attr,
&error_count.attr,
NULL
NULL, /* possibly interrupt_enable if supported, see below */
NULL,
};
#define to_block(k) container_of(k, struct threshold_block, kobj)
@ -501,6 +501,11 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
b->interrupt_capable = lvt_interrupt_supported(bank, high);
b->threshold_limit = THRESHOLD_MAX;
if (b->interrupt_capable)
threshold_ktype.default_attrs[2] = &interrupt_enable.attr;
else
threshold_ktype.default_attrs[2] = NULL;
INIT_LIST_HEAD(&b->miscj);
if (per_cpu(threshold_banks, cpu)[bank]->blocks) {