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>
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 2c1d178..f4873a6 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -421,10 +421,10 @@
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 @@
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) {