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hwmon: (coretemp) replace hardcoded core count with dynamic value

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The hardcoded maximum of 512 cores per package was first defined by commit
34cf8c657c ("hwmon: (coretemp) Enlarge per package core count limit")
and later kept as a fallback with a TODO in commit 1a793caf6f ("hwmon:
(coretemp) Use dynamic allocated memory for core temp_data") because the
actual per-package core count was not reliably available at the time.

Now that topology_num_cores_per_package() is stable and suitable for use,
it's time to complete the TODO and allocate only the needed amount of
memory for core_data.

Signed-off-by: Roman Bakshansky <bakshansky.lists@gmail.com>
Link: https://lore.kernel.org/r/20260516114253.5466-2-bakshansky.lists@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Roman Bakshansky 2026-05-16 14:42:52 +03:00 committed by Guenter Roeck
parent 5354f06bdb
commit b89e1255c9
1 changed files with 1 additions and 8 deletions
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9
drivers/hwmon/coretemp.c
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@ -39,7 +39,6 @@ static int force_tjmax;
module_param_named(tjmax, force_tjmax, int, 0444);
MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
#define NUM_REAL_CORES 512 /* Number of Real cores per cpu */
#define CORETEMP_NAME_LENGTH 28 /* String Length of attrs */
enum coretemp_attr_index {
@ -485,13 +484,7 @@ init_temp_data(struct platform_data *pdata, unsigned int cpu, int pkg_flag)
struct temp_data *tdata;
if (!pdata->core_data) {
/*
* TODO:
* The information of actual possible cores in a package is broken for now.
* Will replace hardcoded NUM_REAL_CORES with actual per package core count
* when this information becomes available.
*/
pdata->nr_cores = NUM_REAL_CORES;
pdata->nr_cores = topology_num_cores_per_package();
pdata->core_data = kzalloc_objs(struct temp_data *,
pdata->nr_cores);
if (!pdata->core_data)