[PATCH v6 14/21] arch_topology: Check for non-negative value rather than -1 for IDs validity
Sudeep Holla
sudeep.holla at arm.com
Mon Jul 4 03:15:58 PDT 2022
Instead of just comparing the cpu topology IDs with -1 to check their
validity, improve that by checking for a valid non-negative value.
Suggested-by: Andy Shevchenko <andy.shevchenko at gmail.com>
Tested-by: Ionela Voinescu <ionela.voinescu at arm.com>
Reviewed-by: Gavin Shan <gshan at redhat.com>
Signed-off-by: Sudeep Holla <sudeep.holla at arm.com>
---
drivers/base/arch_topology.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 6ab173caf1dc..c0b0ee64a79d 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -642,7 +642,7 @@ static int __init parse_dt_topology(void)
* only mark cores described in the DT as possible.
*/
for_each_possible_cpu(cpu)
- if (cpu_topology[cpu].package_id == -1)
+ if (cpu_topology[cpu].package_id < 0)
ret = -EINVAL;
out_map:
@@ -714,7 +714,7 @@ void update_siblings_masks(unsigned int cpuid)
if (cpuid_topo->cluster_id != cpu_topo->cluster_id)
continue;
- if (cpuid_topo->cluster_id != -1) {
+ if (cpuid_topo->cluster_id >= 0) {
cpumask_set_cpu(cpu, &cpuid_topo->cluster_sibling);
cpumask_set_cpu(cpuid, &cpu_topo->cluster_sibling);
}
--
2.37.0
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