arm64: topology: Remove redundant setting of llc_id in CPU topology

Since the cacheinfo LLC information is used directly in arch_topology,
there is no need to parse and fetch the LLC ID information only for
ACPI systems.

Just drop the redundant parsing and setting of llc_id in CPU topology
from ACPI PPTT.

Link: https://lore.kernel.org/r/20220704101605.1318280-12-sudeep.holla@arm.com
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 9ab78ad826e2ad3984aecddbb0fc1e7db0d45792..869ffc4d4484777310d2bf905c3d7346cef04c4c 100644 (file)
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -89,8 +89,6 @@ int __init parse_acpi_topology(void)
                return 0;
 
        for_each_possible_cpu(cpu) {
-               int i, cache_id;
-
                topology_id = find_acpi_cpu_topology(cpu, 0);
                if (topology_id < 0)
                        return topology_id;
@@ -107,18 +105,6 @@ int __init parse_acpi_topology(void)
                cpu_topology[cpu].cluster_id = topology_id;
                topology_id = find_acpi_cpu_topology_package(cpu);
                cpu_topology[cpu].package_id = topology_id;
-
-               i = acpi_find_last_cache_level(cpu);
-
-               if (i > 0) {
-                       /*
-                        * this is the only part of cpu_topology that has
-                        * a direct relationship with the cache topology
-                        */
-                       cache_id = find_acpi_cpu_cache_topology(cpu, i);
-                       if (cache_id > 0)
-                               cpu_topology[cpu].llc_id = cache_id;
-               }
        }
 
        return 0;