diff mbox series

[v6,15/21] arch_topology: Avoid parsing through all the CPUs once a outlier CPU is found

Message ID 20220704101605.1318280-16-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 July 4, 2022, 10:15 a.m. UTC 
There is no point in looping through all the CPU's physical package
identifier to check if it is valid or not once a CPU which is outside
the topology(i.e. outlier CPU) is found.

Let us just break out of the loop early in such case.

Tested-by: Ionela Voinescu <ionela.voinescu@arm.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 drivers/base/arch_topology.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index c0b0ee64a79d..8f6a964d2512 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -642,8 +642,10 @@  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 < 0)
+		if (cpu_topology[cpu].package_id < 0) {
 			ret = -EINVAL;
+			break;
+		}
 
 out_map:
 	of_node_put(map);