Commit 9e26cac5 authored by Gavin Shan's avatar Gavin Shan Committed by Will Deacon
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arm64: numa: Don't check node against MAX_NUMNODES 



When the NUMA nodes are sorted by checking ACPI SRAT (GICC AFFINITY)
sub-table, it's impossible for acpi_map_pxm_to_node() to return
any value, which is greater than or equal to MAX_NUMNODES. Lets drop
the unnecessary check in acpi_numa_gicc_affinity_init().

No functional change intended.

Signed-off-by: default avatarGavin Shan <gshan@redhat.com>
Link: https://lore.kernel.org/r/20220718064232.3464373-1-gshan@redhat.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 7eacf185

arch/arm64/kernel/acpi_numa.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -109,7 +109,7 @@ void __init acpi_numa_gicc_affinity_init(struct acpi_srat_gicc_affinity *pa) 
	pxm = pa->proximity_domain;

	pxm = pa->proximity_domain;

	node = acpi_map_pxm_to_node(pxm);

	node = acpi_map_pxm_to_node(pxm);





	if (node == NUMA_NO_NODE || node >= MAX_NUMNODES) {

	if (node == NUMA_NO_NODE) {

		pr_err("SRAT: Too many proximity domains %d\n", pxm);

		pr_err("SRAT: Too many proximity domains %d\n", pxm);

		bad_srat();

		bad_srat();

		return;

		return;