Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d26ecc48 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

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: default avatarBorislav Petkov <borislav.petkov@amd.com>
parent f227d430

arch/x86/kernel/cpu/mcheck/mce_amd.c

+7 −2
Original line number Diff line number Diff line
@@ -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) {