From: Yazen Ghannam <yazen.ghannam@xxxxxxx> [ Upstream commit bee9e840609cc67d0a7d82f22a2130fb7a0a766d ] The code implicitly operates on AMD-based systems by matching on PCI IDs. However, the use of these IDs is going away. Add an explicit CPU vendor check instead of relying on PCI IDs. Signed-off-by: Yazen Ghannam <yazen.ghannam@xxxxxxx> Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx> Link: https://lore.kernel.org/r/20241206161210.163701-3-yazen.ghannam@xxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/x86/kernel/amd_nb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 16cd56627574d..3dcaeb25ee301 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -536,6 +536,10 @@ static __init void fix_erratum_688(void) static __init int init_amd_nbs(void) { + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD && + boot_cpu_data.x86_vendor != X86_VENDOR_HYGON) + return 0; + amd_cache_northbridges(); amd_cache_gart(); -- 2.39.5
