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psci: simplify hotplug_tests()

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Switch to pr_info("... %pbl"), and drop the temporary buffer allocation.

This prepares for removing cpumap_print_to_pagebuf().

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
This commit is contained in:
Yury Norov
2026-07-22 15:38:36 -04:00
parent 6ec1241416
commit e61575a62f
1 changed files with 2 additions and 13 deletions
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drivers/firmware/psci/psci_checker.c
+2 -13
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@@ -186,7 +186,6 @@ static int hotplug_tests(void)
{
int i, nb_cpu_group, err = -ENOMEM;
cpumask_var_t offlined_cpus, *cpu_groups;
char *page_buf;
if (!alloc_cpumask_var(&offlined_cpus, GFP_KERNEL))
return err;
@@ -194,10 +193,6 @@ static int hotplug_tests(void)
nb_cpu_group = alloc_init_cpu_groups(&cpu_groups);
if (nb_cpu_group < 0)
goto out_free_cpus;
page_buf = (char *)__get_free_page(GFP_KERNEL);
if (!page_buf)
goto out_free_cpu_groups;
/*
* Of course the last CPU cannot be powered down and cpu_down() should
* refuse doing that.
@@ -210,17 +205,11 @@ static int hotplug_tests(void)
* off, the cpu group itself should shut down.
*/
for (i = 0; i < nb_cpu_group; ++i) {
ssize_t len = cpumap_print_to_pagebuf(true, page_buf,
cpu_groups[i]);
/* Remove trailing newline. */
page_buf[len - 1] = '\0';
pr_info("Trying to turn off and on again group %d (CPUs %s)\n",
i, page_buf);
pr_info("Trying to turn off and on again group %d (CPUs %*pbl)\n",
i, cpumask_pr_args(cpu_groups[i]));
err += down_and_up_cpus(cpu_groups[i], offlined_cpus);
}
free_page((unsigned long)page_buf);
out_free_cpu_groups:
free_cpu_groups(nb_cpu_group, &cpu_groups);
out_free_cpus:
free_cpumask_var(offlined_cpus);