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powercap: intel_rapl: Optimize rp->domains memory allocation

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In the memory allocation of rp->domains in rapl_detect_domains(), there
is an additional memory of struct rapl_domain allocated, optimize the
code here to save sizeof(struct rapl_domain) bytes of memory.

Test in Intel NUC (i5-1135G7).

Signed-off-by: xiongxin <xiongxin@kylinos.cn>
Tested-by: xiongxin <xiongxin@kylinos.cn>
Reviewed-by: Srinivas Pandruvada<srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
xiongxin 2023-04-07 10:47:59 +08:00 • committed by Rafael J. Wysocki
parent 3e767d6850
commit 2fa00769b1
1 changed files with 1 additions and 1 deletions
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2
drivers/powercap/intel_rapl_common.c
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@ -1485,7 +1485,7 @@ static int rapl_detect_domains(struct rapl_package *rp)
}
pr_debug("found %d domains on %s\n", rp->nr_domains, rp->name);
rp->domains = kcalloc(rp->nr_domains + 1, sizeof(struct rapl_domain),
rp->domains = kcalloc(rp->nr_domains, sizeof(struct rapl_domain),
GFP_KERNEL);
if (!rp->domains)
return -ENOMEM;