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| author | Sudeep Holla <sudeep.holla@arm.com> | 2022-07-04 13:15:59 +0300 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2022-07-04 18:22:29 +0300 |
| commit | 5a01bb8efb5177236498fc57b147cabd2b792613 (patch) | |
| tree | 8e01976a48c0cf9df290e06f6a0539baec3417d8 /drivers/base/arch_topology.c | |
| parent | 9eb5e54f876dda1aae0aef10bdd61da4331509ba (diff) | |
| download | linux-5a01bb8efb5177236498fc57b147cabd2b792613.tar.xz | |
arch_topology: Avoid parsing through all the CPUs once a outlier CPU is found
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.
Link: https://lore.kernel.org/r/20220704101605.1318280-16-sudeep.holla@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>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/base/arch_topology.c')
| -rw-r--r-- | drivers/base/arch_topology.c | 4 |
1 files changed, 3 insertions, 1 deletions
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); |