On Fri, Oct 7, 2016 at 10:33 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: > On Fri, Oct 7, 2016 at 10:26 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote: >> On Fri, Oct 7, 2016 at 6:28 AM, tip-bot for Thomas Gleixner >>> diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c >>> index 32a7d70..6d35baf 100644 >>> --- a/arch/x86/kernel/acpi/boot.c >>> +++ b/arch/x86/kernel/acpi/boot.c >>> @@ -233,6 +233,9 @@ acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end) >>> >>> acpi_table_print_madt_entry(header); >>> >>> + if (processor->id >= 0xff) >>> + return -EINVAL; >>> + >>> /* >>> * We need to register disabled CPU as well to permit >>> * counting disabled CPUs. This allows us to size >> >> >> some thing is wrong: >> >> [ 71.787437] ACPI: LAPIC (acpi_id[0xff] lapic_id[0xff] disabled) >> [ 71.799681] ACPI: Error parsing LAPIC/X2APIC entries >> [ 71.809934] ACPI: Invalid BIOS MADT, disabling ACPI >> >> looks like should change >> return -EINVAL ; >> ==> >> return 0; > > also processor->id is u8, > > so the patch should be: + if (processor->id == 0xff) + return 0; + -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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