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Diffstat (limited to 'arch/arm64/kernel/acpi.c')
-rw-r--r--arch/arm64/kernel/acpi.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index 2804330c95dc..3a58e9db5cfe 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -152,10 +152,14 @@ static int __init acpi_fadt_sanity_check(void)
*/
if (table->revision < 5 ||
(table->revision == 5 && fadt->minor_revision < 1)) {
- pr_err("Unsupported FADT revision %d.%d, should be 5.1+\n",
+ pr_err(FW_BUG "Unsupported FADT revision %d.%d, should be 5.1+\n",
table->revision, fadt->minor_revision);
- ret = -EINVAL;
- goto out;
+
+ if (!fadt->arm_boot_flags) {
+ ret = -EINVAL;
+ goto out;
+ }
+ pr_err("FADT has ARM boot flags set, assuming 5.1\n");
}
if (!(fadt->flags & ACPI_FADT_HW_REDUCED)) {