From: Adrian Huang <ahuang12@xxxxxxxxxx> Table 5.90 "Runtime Performance Record Types" in ACPI 6.4 spec [1] says: These type values "0x0003-0xFFFF" of Runtime Performance Record Types are reserved for ACPI spec usage, platform vendor usage, hardware vendor usage, platform firmware vendor usage and future use. Users might be confused with the FW_BUG message, and they think this is the FW issue. Here is the example in a Lenovo box: ACPI: FPDT 0x00000000A820A000 000044 (v01 LENOVO THINKSYS 00000100 01000013) ACPI: Reserving FPDT table memory at [mem 0xa820a000-0xa820a043] ACPI FPDT: [Firmware Bug]: Invalid record 4113 found So, remove the FW_BUG message to avoid confusion since those subtable types are reserved in ACPI 6.4 spec. [1] https://uefi.org/specs/ACPI/6.4/05_ACPI_Software_Programming_Model/ACPI_Software_Programming_Model.html#firmware-performance-data-table-fpdt Cc: Zhang Rui <rui.zhang@xxxxxxxxx> Signed-off-by: Adrian Huang <ahuang12@xxxxxxxxxx> --- drivers/acpi/acpi_fpdt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/acpi_fpdt.c b/drivers/acpi/acpi_fpdt.c index 4ee2ad234e3d..568f26a7490a 100644 --- a/drivers/acpi/acpi_fpdt.c +++ b/drivers/acpi/acpi_fpdt.c @@ -220,8 +220,8 @@ static int fpdt_process_subtable(u64 address, u32 subtable_type) break; default: - pr_err(FW_BUG "Invalid record %d found.\n", record_header->type); - return -EINVAL; + /* Other types are reserved in ACPI 6.4 spec. */ + break; } } return 0; -- 2.25.1
