From: Michael Chang <mchang@xxxxxxxx> Fix the overriding ACPI table header do not override the existing ACPI header thus the existing one is still in use. This caused a discrepency of header and body, which would introdce a serios side effect that when overriding DSDT, system might have error with "Unable to load the System Description Tables" due to DSDT table verified failed. Most field in ACPI table is static, but the length field is dyamically changed and corresponds the new assembled *.aml size. We reserve the ACPI data region using the overridden table size but attemps to map it with existing ACPI table size introduced by above discrepency. It would lead to remap fail during verifying DSDT able if length difference cross a page boundary. Signed-off-by: Michael Chang <mchang@xxxxxxxx> --- drivers/acpi/acpica/tbutils.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index df85afe..2e797d9 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -511,9 +511,9 @@ acpi_tb_install_table(acpi_physical_address address, ACPI_CAST_PTR(void, address))); acpi_os_unmap_memory(mapped_table, sizeof(struct acpi_table_header)); + address = tmp_addr; mapped_table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - address = tmp_addr; } flags = ACPI_TABLE_ORIGIN_MAPPED; table_to_install = mapped_table; -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
