[PATCH 3/3] thermal/powerclamp: add back module device table

Kai-Heng Feng kai.heng.feng at canonical.com
Thu Apr 13 08:24:55 UTC 2017


From: Jacob Pan <jacob.jun.pan at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/1591641

Commit 3105f234e0aba43e44e277c20f9b32ee8add43d4 replaced module
cpu id table with a cpu feature check, which is logically correct.
But we need the module device table to allow module auto loading.

Cc: stable at vger.kernel.org # 4.8
Fixes:3105f234 thermal/powerclamp: correct cpu support check
Signed-off-by: Jacob Pan <jacob.jun.pan at linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang at intel.com>
(cherry picked from commit ec638db8cb9ddd5ca08b23f2835b6c9c15eb616d)
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
---
 drivers/thermal/intel_powerclamp.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index 4b61c89b42d3..5306add74838 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -666,9 +666,16 @@ static struct thermal_cooling_device_ops powerclamp_cooling_ops = {
 	.set_cur_state = powerclamp_set_cur_state,
 };
 
+static const struct x86_cpu_id __initconst intel_powerclamp_ids[] = {
+	{ X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_MWAIT },
+	{}
+};
+MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);
+
 static int __init powerclamp_probe(void)
 {
-	if (!boot_cpu_has(X86_FEATURE_MWAIT)) {
+
+	if (!x86_match_cpu(intel_powerclamp_ids)) {
 		pr_err("CPU does not support MWAIT");
 		return -ENODEV;
 	}
-- 
2.12.2





More information about the kernel-team mailing list