[PATCH] Tables: Restore old behavor to favor 32-bit FADT addresses.

From: Lv Zheng
Date: Tue May 13 2014 - 04:51:09 EST


We need to find a smarter way to switch to 64-bit FADT addresses according
to the bug report. This patch reverts Linux to the original behavior.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=74021
Reported-by: Oswald Buddenhagen <ossi@xxxxxxx>
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
Tested-by: Oswald Buddenhagen <ossi@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 3.14.x: 0249ed24: ACPICA: Add option to favor 32-bit FADT addresses
---
include/acpi/acpixf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 4e3044c..b66b6a8 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -190,7 +190,7 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
* some machines have been found to have a corrupted non-zero 64-bit
* address. Default is FALSE, do not favor the 32-bit addresses.
*/
-ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);

/*
* Optionally truncate I/O addresses to 16 bits. Provides compatibility
--
1.7.10

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