Subject: Re: linux-next: build failure after merge of the sound-asoc tree

From: Cezary Rojewski <[email-masked]>
Date: Mon, 8 Apr 2024 10:24:28 +0200

On 2024-04-08 6:12 AM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the sound-asoc tree, today's linux-next build (powerpc
> allyesconfig) failed like this:
> 
> In file included from include/linux/bits.h:22,
>                   from include/linux/gfp_types.h:5,
>                   from include/linux/gfp.h:5,
>                   from include/linux/slab.h:16,
>                   from sound/soc/intel/avs/icl.c:9:
> include/linux/build_bug.h:78:41: error: static assertion failed: "sizeof(struct avs_icl_memwnd2) == 65536"
>     78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
>        |                                         ^~~~~~~~~~~~~~
> include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
>     77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
>        |                                  ^~~~~~~~~~~~~~~
> sound/soc/intel/avs/icl.c:73:1: note: in expansion of macro 'static_assert'
>     73 | static_assert(sizeof(struct avs_icl_memwnd2) == 65536);
>        | ^~~~~~~~~~~~~
> 
> Caused by commit
> 
>    c2b10acb62c1 ("ASoC: Intel: avs: Add assert_static to guarantee ABI sizes")
> 
> PAGE_SIZE is 64K for this build.
> 
> I have applied this patch for today:
> 
> From: Stephen Rothwell <[email-masked]>
> Date: Mon, 8 Apr 2024 13:50:53 +1000
> Subject: [PATCH] ASoC: Intel: avs: stop building when PAGE_SIZE == 64K
> 
> Signed-off-by: Stephen Rothwell <[email-masked]>
> ---
>   sound/soc/intel/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
> index 4b9e498e3303..abe5cba82d50 100644
> --- a/sound/soc/intel/Kconfig
> +++ b/sound/soc/intel/Kconfig
> @@ -211,7 +211,7 @@ config SND_SOC_INTEL_KEEMBAY
>   
>   config SND_SOC_INTEL_AVS
>   	tristate "Intel AVS driver"
> -	depends on X86 || COMPILE_TEST
> +	depends on X86
>   	depends on PCI
>   	depends on COMMON_CLK
>   	select SND_SOC_ACPI if ACPI

Hello Stephen,

Thank you for the report. I do not believe the patch above is the 
correct fix. Below is the context and the proposed fix [1] has just been 
sent to alsa-devel.

Recent series for the avs-driver added static_asserts() [2]. Since that 
moment, build problems occur when PAGE_SIZE != SZ_4K. Patch originally 
designed to fix problems with the window description [3], didn't address 
all the problems, unfortunately.

[1]: 
https://lore.kernel.org/alsa-devel/[email-masked]/
[2]: 
https://lore.kernel.org/alsa-devel/[email-masked]/
[3]: 
https://lore.kernel.org/alsa-devel/[email-masked]/

Kind regards,
Czarek