This is a note to let you know that I've just added the patch titled
ACPICA: Restore code that repairs NULL package elements in return values.
ACPICA: Add mechanism for early object repairs on a per-name basis
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpica-restore-code-that-repairs-null-package-elements-in-return-values.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 61db45ca21630f5ab7f678d54c5d969c21647854 Mon Sep 17 00:00:00 2001
From: Lv Zheng <[email protected]>
Date: Wed, 26 Feb 2014 10:29:40 +0800
Subject: ACPICA: Restore code that repairs NULL package elements in return
values.
From: Lv Zheng <[email protected]>
commit 61db45ca21630f5ab7f678d54c5d969c21647854 upstream.
The original code was lost accidently, it was not generated along with the
following commit of mechanism improvements and thus not get merged:
Commit: d5a36100f62fa6db5541344e08b361b34e9114c5
Subject: ACPICA: Add mechanism for early object repairs on a per-name basis
Adds the framework to allow object repairs very early in the
return object analysis. Enables repairs like string->unicode,
etc.
This patch restores the implementation of the NULL element repair code for
ACPI_RTYPE_NONE. In the original design, ACPI_RTYPE_NONE is defined to
collect simple NULL object repairs.
Lv Zheng.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=67901
Signed-off-by: Lv Zheng <[email protected]>
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/acpica/nsrepair.c | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -207,13 +207,30 @@ acpi_ns_simple_repair(struct acpi_evalua
* this predefined name. Either one return value is expected, or none,
* for both methods and other objects.
*
- * Exit now if there is no return object. Warning if one was expected.
+ * Try to fix if there was no return object. Warning if failed to fix.
*/
if (!return_object) {
if (expected_btypes && (!(expected_btypes & ACPI_RTYPE_NONE))) {
- ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
- ACPI_WARN_ALWAYS,
- "Missing expected return value"));
+ if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
+ ACPI_WARN_PREDEFINED((AE_INFO,
+ info->full_pathname,
+ ACPI_WARN_ALWAYS,
+ "Found unexpected NULL
package element"));
+
+ status =
+ acpi_ns_repair_null_element(info,
+ expected_btypes,
+ package_index,
+
return_object_ptr);
+ if (ACPI_SUCCESS(status)) {
+ return (AE_OK); /* Repair was
successful */
+ }
+ } else {
+ ACPI_WARN_PREDEFINED((AE_INFO,
+ info->full_pathname,
+ ACPI_WARN_ALWAYS,
+ "Missing expected return
value"));
+ }
return (AE_AML_NO_RETURN_VALUE);
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/acpica-restore-code-that-repairs-null-package-elements-in-return-values.patch
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