diff mbox series

[N/U,4/8] hwmon: (coretemp) Remove redundant pdata->cpu_map[]

Message ID 20240305064644.251754-5-andrea.righi@canonical.com
State New
Headers show
Series hwmon: (coretemp) Fix core count limitation | expand

Commit Message

Andrea Righi March 5, 2024, 6:44 a.m. UTC 
From: Zhang Rui <rui.zhang@intel.com>

BugLink: https://bugs.launchpad.net/bugs/2056126

pdata->cpu_map[] saves the mapping between cpu core id and the index in
pdata->core_data[]. This is used to find the temp_data structure using
cpu_core_id, by traversing the pdata->cpu_map[] array. But the same goal
can be achieved by traversing the pdata->core_temp[] array directly.

Remove redundant pdata->cpu_map[].

No functional change.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20240202092144.71180-8-rui.zhang@intel.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
(cherry picked from commit 87eb801925a0a391dce0d7519eb1d45a9d7e0953 linux-next)
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
---
 drivers/hwmon/coretemp.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index cdd1e069d5c1..29ee8e0c0fe9 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -96,7 +96,6 @@  struct temp_data {
 struct platform_data {
 	struct device		*hwmon_dev;
 	u16			pkg_id;
-	u16			cpu_map[NUM_REAL_CORES];
 	struct ida		ida;
 	struct cpumask		cpumask;
 	struct temp_data	*core_data[MAX_CORE_DATA];
@@ -517,7 +516,6 @@  static int create_core_data(struct platform_device *pdev, unsigned int cpu,
 		if (index < 0)
 			return index;
 
-		pdata->cpu_map[index] = topology_core_id(cpu);
 		index += BASE_SYSFS_ATTR_NO;
 	}
 
@@ -696,7 +694,7 @@  static int coretemp_cpu_offline(unsigned int cpu)
 	struct platform_device *pdev = coretemp_get_pdev(cpu);
 	struct platform_data *pd;
 	struct temp_data *tdata;
-	int i, indx = -1, target;
+	int i, target;
 
 	/* No need to tear down any interfaces for suspend */
 	if (cpuhp_tasks_frozen)
@@ -707,18 +705,16 @@  static int coretemp_cpu_offline(unsigned int cpu)
 	if (!pd->hwmon_dev)
 		return 0;
 
-	for (i = 0; i < NUM_REAL_CORES; i++) {
-		if (pd->cpu_map[i] == topology_core_id(cpu)) {
-			indx = i + BASE_SYSFS_ATTR_NO;
+	for (i = BASE_SYSFS_ATTR_NO; i < MAX_CORE_DATA; i++) {
+		if (pd->core_data[i] && pd->core_data[i]->cpu_core_id == topology_core_id(cpu))
 			break;
-		}
 	}
 
 	/* Too many cores and this core is not populated, just return */
-	if (indx < 0)
+	if (i == MAX_CORE_DATA)
 		return 0;
 
-	tdata = pd->core_data[indx];
+	tdata = pd->core_data[i];
 
 	cpumask_clear_cpu(cpu, &pd->cpumask);
 
@@ -729,7 +725,7 @@  static int coretemp_cpu_offline(unsigned int cpu)
 	 */
 	target = cpumask_any_and(&pd->cpumask, topology_sibling_cpumask(cpu));
 	if (target >= nr_cpu_ids) {
-		coretemp_remove_core(pd, indx);
+		coretemp_remove_core(pd, i);
 	} else if (tdata && tdata->cpu == cpu) {
 		mutex_lock(&tdata->update_lock);
 		tdata->cpu = target;