Re: linux-next: build warning after merge of the akpm tree

From: Stephen Rothwell
Date: Wed Dec 09 2020 - 05:35:13 EST


Hi all,

On Tue, 8 Dec 2020 23:01:57 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> I will try the following patch tomorrow:
>
> From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Date: Tue, 8 Dec 2020 22:58:24 +1100
> Subject: [PATCH] powerpc: Add .data..Lubsan_data*/.data..Lubsan_type* sections explicitly
>
> Similarly to commit
>
> beba24ac5913 ("powerpc/32: Add .data..Lubsan_data*/.data..Lubsan_type* sections explicitly")
>
> since CONFIG_UBSAN bits can now be enabled for all*config.
>
> Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> ---
> arch/powerpc/kernel/vmlinux.lds.S | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
> index 3b4c26e94328..0318ba436f34 100644
> --- a/arch/powerpc/kernel/vmlinux.lds.S
> +++ b/arch/powerpc/kernel/vmlinux.lds.S
> @@ -296,6 +296,10 @@ SECTIONS
> #else
> .data : AT(ADDR(.data) - LOAD_OFFSET) {
> DATA_DATA
> +#ifdef CONFIG_UBSAN
> + *(.data..Lubsan_data*)
> + *(.data..Lubsan_type*)
> +#endif
> *(.data.rel*)
> *(.toc1)
> *(.branch_lt)
> --
> 2.29.2

This got rid of all the warnings.

--
Cheers,
Stephen Rothwell

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