Commit-ID: d26ecc4894464318dce51d709e19dd9d88916bee
Gitweb: http://git.kernel.org/tip/d26ecc4894464318dce51d709e19dd9d88916bee
Author: Borislav Petkov <borislav.petkov@xxxxxxx>
AuthorDate: Mon, 16 Apr 2012 18:20:36 +0200
Committer: Borislav Petkov <borislav.petkov@xxxxxxx>
CommitDate: Mon, 30 Apr 2012 13:22:44 +0200
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@xxxxxxx>
---
arch/x86/kernel/cpu/mcheck/mce_amd.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
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(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) {
--
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