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SubjectRE: [PATCH 0/4] ACPICA: Stable material of ACPI executer fixes for linux-3.8.
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> From: Rafael J. Wysocki [mailto:rjw@rjwysocki.net]
> Sent: Thursday, October 31, 2013 8:22 PM
>
> On Thursday, October 31, 2013 05:08:50 AM Greg Kroah-Hartman wrote:
> > On Thu, Oct 31, 2013 at 12:39:21PM +0100, Rafael J. Wysocki wrote:
> > > On Thursday, October 31, 2013 09:07:40 AM Lv Zheng wrote:
> > > > There are bug-fixes for AML interpreter upstreamed, fixing some serious
> > > > issues found in recent platforms. These fixes make Linux AML interpreter
> > > > more ACPI 2.0 ASL concept compliant. Further AML interpreter fixes should
> > > > be based on such improvements, thus they are good materials for stable.
> > > >
> > > > This patch set can be safely applied to linux-3.8:
> > > > commit 19f949f52599ba7c3f67a5897ac6be14bfcb1200 upstream.
> > > >
> > > > The patch set has passed build/boot tests on the following machines:
> > > > Dell Inspiron Mini 1010 (i386)
> > > > HP Compaq 8200 Elite SFF PC (x86-64)
> > > >
> > > > Bob Moore (4):
> > > > ACPICA: Interpreter: Fix Store() when implicit conversion is not
> > > > possible.
> > > > ACPICA: DeRefOf operator: Update to fully resolve FieldUnit and
> > > > BufferField refs.
> > > > ACPICA: Return error if DerefOf resolves to a null package element.
> > > > ACPICA: Fix for a Store->ArgX when ArgX contains a reference to a
> > > > field.
> > >
> > > Hi Greg,
> > >
> > > Please take patches [1-4/4] for stable.
> >
> > "Which" stable tree?
> >
> > I don't do 3.8, it's long been end-of-life, although one company is
> > trying to keep it alive, but that's not me.
> >
> > I'm only handling 3.4, 3.10, and 3.11 stable trees right now, which
> > one(s) should these be applied to?
>
> 3.10.x and 3.11.x then.
>
> Lv, do the original mainline commits apply to these kernels?
>
> Rafael

Hi, Rafael and Greg

I checked the back port dependencies since v3.8:
1. [PATCH 1] belongs to v3.9.
2. [PATCH 4] includes an empty line belonging to a coding style fix affecting this series (between [PATCH 3] and [PATCH 4]).
Thus,
1. For v3.10:
[PATCH 1]: It's already in the repo, so please drop it.
[PATCH 2-4]: They can be used directly as 3.10.x stable materials.
2. For v3.11:
[PATCH 1]: It's already in the repo, so please drop it.
[PATCH 2-3]: They can be used directly as 3.11.x stable materials.
[PATCH 4]: The original commit from Linus' tree should be used instead.

I checked the commit log since v3.4.
There is no functional change done to the AML executer between v3.4 and v3.8.
The problem is there is a coding style fix affecting this series (between v3.4 and [PATCH 1]).
I generated the following diff block before applying [PATCH 1], and obtained a successful build/boot to a v3.4 kernel with these patches applied.
Thus,
1. For v3.4:
[PATCH 1]: You can merge this diff block to [PATCH 1] or simply modify the [PATCH 1] by manually adding this white space.
[PATCH 2-4]: They can be used directly as 3.4.x stable materials.

---
Index: linux-acpica/drivers/acpi/acpica/exstore.c
===================================================================
--- linux-acpica.orig/drivers/acpi/acpica/exstore.c
+++ linux-acpica/drivers/acpi/acpica/exstore.c
@@ -491,7 +491,7 @@ acpi_ex_store_object_to_node(union acpi_
acpi_ut_get_object_type_name(source_desc),
source_desc, node));

- /* No conversions for all other types. Just attach the source object */
+ /* No conversions for all other types. Just attach the source object */

status = acpi_ns_attach_object(node, source_desc,
source_desc->common.type);
---
Thanks and best regards
-Lv
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