Re: [PATCH] LoongArch: Select HAVE_DEBUG_KMEMLEAK to support kmemleak

[Tiezhu Yang]

Cc: Jonathan Corbet <corbet@xxxxxxx>
    linux-doc@xxxxxxxxxxxxxxx

On 05/09/2023 03:13 PM, Youling Tang wrote:
> Hi, Tiezhu
>
> On 05/09/2023 02:49 PM, Tiezhu Yang wrote:
> > We can see that DEBUG_KMEMLEAK depends on HAVE_DEBUG_KMEMLEAK after
> > commit b69ec42b1b19 ("Kconfig: clean up the long arch list for the
> > DEBUG_KMEMLEAK config option"), just select HAVE_DEBUG_KMEMLEAK to
> > support kmemleak on LoongArch.
> >
> > Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
> > ---
> >
> > This is based on 6.4-rc1
> >
> >  arch/loongarch/Kconfig | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
> > index d38b066..1e64edd 100644
> > --- a/arch/loongarch/Kconfig
> > +++ b/arch/loongarch/Kconfig
> > @@ -90,6 +90,7 @@ config LOONGARCH
> >      select HAVE_ASM_MODVERSIONS
> >      select HAVE_CONTEXT_TRACKING_USER
> >      select HAVE_C_RECORDMCOUNT
> > +    select HAVE_DEBUG_KMEMLEAK
> >      select HAVE_DEBUG_STACKOVERFLOW
> >      select HAVE_DMA_CONTIGUOUS
> >      select HAVE_DYNAMIC_FTRACE
>
> At the same time, you need to modify the loongarch in arch-support.txt
> to ok.
>
> BTW, we can submit a separate patch to modify the features already
> supported by LoongArch.
>
> The following features are already supported in LoongArch.
>
> diff --git
> a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
> b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
...
> diff --git a/Documentation/features/debug/kprobes/arch-support.txt
> b/Documentation/features/debug/kprobes/arch-support.txt
> index 8a77d62a42c5..aad83b57587a 100644
> --- a/Documentation/features/debug/kprobes/arch-support.txt
> +++ b/Documentation/features/debug/kprobes/arch-support.txt
...
> diff --git a/Documentation/features/debug/kretprobes/arch-support.txt
> b/Documentation/features/debug/kretprobes/arch-support.txt
> index cf4723c5ac55..61380010a4a7 100644
> --- a/Documentation/features/debug/kretprobes/arch-support.txt
> +++ b/Documentation/features/debug/kretprobes/arch-support.txt
...
> diff --git
> a/Documentation/features/debug/stackprotector/arch-support.txt
> b/Documentation/features/debug/stackprotector/arch-support.txt
> index 71cd4ba18f7d..4c64c5d596f7 100644
> --- a/Documentation/features/debug/stackprotector/arch-support.txt
> +++ b/Documentation/features/debug/stackprotector/arch-support.txt

Thank you, I have already prepared a patch to update the docs,
but some more features will be added on LoongArch in the following
merge window, I am not sure what is the proper time to send the
following patch, maybe two months later, or right away, maybe
Jonathan can give some suggestions.

Documentation/features: Refresh LoongArch support files

Run the refresh script [1] to document the recent feature additions
on LoongArch.

[1] Documentation/features/scripts/features-refresh.sh

Thanks,
Tiezhu