On Wednesday, April 27, 2016 09:45:21 AM Chen, Yu C wrote:
> Hi Lv,
>
> > -----Original Message-----
> > From: Zheng, Lv
> > Sent: Wednesday, April 27, 2016 4:55 PM
> > To: Wysocki, Rafael J; Rafael J. Wysocki; Brown, Len
> > Cc: Zheng, Lv; Lv Zheng; linux-kernel@xxxxxxxxxxxxxxx; linux-
> > acpi@xxxxxxxxxxxxxxx; Chen, Yu C
> > Subject: [PATCH v2 4/6] ACPI / osi: Fix default _OSI(Darwin) support
> >
> > From: Chen Yu <yu.c.chen@xxxxxxxxx>
> >
> > The following commit always reports positive value when Apple hardware
> > queries _OSI("Darwin"):
> > Commit: 7bc5a2bad0b8d9d1ac9f7b8b33150e4ddf197334
> > Subject: ACPI: Support _OSI("Darwin") correctly However since this
> > implementation places the judgement in runtime, it breaks acpi_osi=!Darwin
> > and cannot return unsupported for _OSI("WinXXX") invoked before invoking
> > _OSI("Darwin").
> >
> > This patch fixes the issues by reverting the wrong support and implementing
> > the default behavior of _OSI("Darwin")/_OSI("WinXXX") on Apple hardware via
> > DMI matching.
> >
> > Fixes: 7bc5a2bad0b8 ("ACPI: Support _OSI("Darwin") correctly")
> > Cc: <stable@xxxxxxxxxxxxxxx> # 3.18+
> > Link: https://bugzilla.kernel.org/show_bug.cgi?id=92111
> > Reported-by: Lukas Wunner <lukas@xxxxxxxxx>
> > Signed-off-by: Chen Yu <yu.c.chen@xxxxxxxxx>
> > Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
> > ---
> > drivers/acpi/blacklist.c | 23 ++++++++++++++++++
> > drivers/acpi/osl.c | 58 ++++++++++++++++++++++++++++++++++++++++---
> > ---
> > include/linux/acpi.h | 1 +
> > 3 files changed, 75 insertions(+), 7 deletions(-)
> >
> > diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index
> > 96809cd..e947d3e 100644
> > --- a/drivers/acpi/blacklist.c
> > +++ b/drivers/acpi/blacklist.c
> > @@ -133,6 +133,11 @@ int __init acpi_blacklisted(void)
> > return blacklisted;
> > }
> > #ifdef CONFIG_DMI
> > +static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
> > +{
> > + acpi_dmi_osi_darwin(1, d); /* enable */
> > + return 0;
> > +}
> > static int __init dmi_enable_osi_linux(const struct dmi_system_id *d) {
> > acpi_dmi_osi_linux(1, d); /* enable */
> > @@ -331,6 +336,24 @@ static struct dmi_system_id acpi_osi_dmi_table[]
> > __initdata = {
> > },
> > },
> >
> > + /*
> > + * Enable _OSI("Darwin") for all apple platforms.
> > + */
> > + {
> > + .callback = dmi_enable_osi_darwin,
> > + .ident = "Apple hardware",
> > + .matches = {
> > + DMI_MATCH(DMI_SYS_VENDOR, "Apple INC."),
> > + },
> > + },
> > + {
> > + .callback = dmi_enable_osi_darwin,
> > + .ident = "Apple hardware",
> > + .matches = {
> > + DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, INC."),
> > + },
> > + },
> > +
> The vendor id should be 'Apple Inc.' and 'Apple Computer, Inc.' instead.
If this is the only problem with this patch, I can fix it up. No need to resend.
Thanks,
Rafael
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