Re: Patch "LoongArch: Init acpi_gbl_use_global_lock to false" has been added to the 6.12-stable tree

Re: Patch "LoongArch: Init acpi_gbl_use_global_lock to false" has been added to the 6.12-stable tree

[Huacai Chen]

Hi, Sasha,

On Wed, Oct 15, 2025 at 7:42 PM Sasha Levin <sashal@kernel.org> wrote:
>
> This is a note to let you know that I've just added the patch titled
>
>     LoongArch: Init acpi_gbl_use_global_lock to false
>
> to the 6.12-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:
>      loongarch-init-acpi_gbl_use_global_lock-to-false.patch
> and it can be found in the queue-6.12 subdirectory.
>
> If you, or anyone else, feels it should not be added to the stable tree,
> please let <stable@vger.kernel.org> know about it.
>
Please also backport feb8ae81b2378b75a99c81d3156 ("ACPICA: Allow to
skip Global Lock initialization") as a dependency for all stable
branches.


Huacai

>
>
> commit abbcba805d220623909699cbeb81b739d3dd5a06
> Author: Huacai Chen <chenhuacai@kernel.org>
> Date:   Thu Oct 2 22:38:57 2025 +0800
>
>     LoongArch: Init acpi_gbl_use_global_lock to false
>
>     [ Upstream commit 98662be7ef20d2b88b598f72e7ce9b6ac26a40f9 ]
>
>     Init acpi_gbl_use_global_lock to false, in order to void error messages
>     during boot phase:
>
>      ACPI Error: Could not enable GlobalLock event (20240827/evxfevnt-182)
>      ACPI Error: No response from Global Lock hardware, disabling lock (20240827/evglock-59)
>
>     Fixes: 628c3bb40e9a8cefc0a6 ("LoongArch: Add boot and setup routines")
>     Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
>     Signed-off-by: Sasha Levin <sashal@kernel.org>
>
> diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
> index 1fa6a604734ef..2ceb198ae8c80 100644
> --- a/arch/loongarch/kernel/setup.c
> +++ b/arch/loongarch/kernel/setup.c
> @@ -354,6 +354,7 @@ void __init platform_init(void)
>
>  #ifdef CONFIG_ACPI
>         acpi_table_upgrade();
> +       acpi_gbl_use_global_lock = false;
>         acpi_gbl_use_default_register_widths = false;
>         acpi_boot_table_init();
>  #endif

Re: Patch "LoongArch: Init acpi_gbl_use_global_lock to false" has been added to the 6.12-stable tree

[Greg KH]

On Thu, Oct 16, 2025 at 10:30:20PM +0800, Huacai Chen wrote:
> Hi, Sasha,
> 
> On Wed, Oct 15, 2025 at 7:42 PM Sasha Levin <sashal@kernel.org> wrote:
> >
> > This is a note to let you know that I've just added the patch titled
> >
> >     LoongArch: Init acpi_gbl_use_global_lock to false
> >
> > to the 6.12-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:
> >      loongarch-init-acpi_gbl_use_global_lock-to-false.patch
> > and it can be found in the queue-6.12 subdirectory.
> >
> > If you, or anyone else, feels it should not be added to the stable tree,
> > please let <stable@vger.kernel.org> know about it.
> >
> Please also backport feb8ae81b2378b75a99c81d3156 ("ACPICA: Allow to
> skip Global Lock initialization") as a dependency for all stable
> branches.
> 

Now queued up, thanks.

greg k-h