From: Tianli Xiong <xiongtianli@loongson.cn> LoongArch inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I6BWFP -------------------------------- Fix patch "LoongArch: Add PCI controller support" Signed-off-by: Tianli Xiong <xiongtianli@loongson.cn> --- arch/loongarch/pci/acpi.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/loongarch/pci/acpi.c b/arch/loongarch/pci/acpi.c index 813b668450c1..c2219ac1d7e8 100644 --- a/arch/loongarch/pci/acpi.c +++ b/arch/loongarch/pci/acpi.c @@ -214,9 +214,11 @@ static int acpi_prepare_root_resources(struct acpi_pci_root_info *ci) if (status > 0) { resource_list_for_each_entry_safe(entry, tmp, &ci->resources) { if (entry->res->flags & IORESOURCE_MEM) { - entry->offset = ci->root->mcfg_addr & GENMASK_ULL(63, 40); - entry->res->start |= entry->offset; - entry->res->end |= entry->offset; + if (!entry->offset) { + entry->offset = ci->root->mcfg_addr & GENMASK_ULL(63, 40); + entry->res->start |= entry->offset; + entry->res->end |= entry->offset; + } } } return status; -- 2.33.0