diff mbox series

[v4,13/20] arch_topology: Check for non-negative value rather than -1 for IDs validity

Message ID 20220621192034.3332546-14-sudeep.holla@arm.com (mailing list archive)
State New, archived
Headers show
Series arch_topology: Updates to add socket support and fix cluster ids | expand

Commit Message

Sudeep Holla June 21, 2022, 7:20 p.m. UTC 
Instead of just comparing the cpu topology IDs with -1 to check their
validity, improve that by checking for a valid non-negative value.

Reviewed-by: Gavin Shan <gshan@redhat.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 drivers/base/arch_topology.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 7a5ff1ea5f00..ef90d9c00d9e 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);
 		}