linux-kernel - Re: [PATCH v9 1/2] platform/arm64: build drivers even on non-ARM64 platforms

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Date: Mon, 24 Jun 2024 19:27:41 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
cc: Bjorn Andersson <andersson@...nel.org>, 
    Bryan O'Donoghue <bryan.odonoghue@...aro.org>, 
    Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
    Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
    Konrad Dybcio <konrad.dybcio@...aro.org>, 
    LKML <linux-kernel@...r.kernel.org>, platform-driver-x86@...r.kernel.org, 
    linux-usb@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
    Nikita Travkin <nikita@...n.ru>
Subject: Re: [PATCH v9 1/2] platform/arm64: build drivers even on non-ARM64
 platforms

On Mon, 24 Jun 2024, Dmitry Baryshkov wrote:

> The Kconfig for platforms/arm64 has 'depends on ARM64 || COMPILE_TEST'.
> However due to Makefile having just obj-$(CONFIG_ARM64) the subdir will
> not be descended for !ARM64 platforms and thus the drivers won't get
> built. This breaks modular builds of other driver drivers which depend
> on arm64 platform drivers.
> 
> Reported-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Fixes: 363c8aea2572 ("platform: Add ARM64 platform directory")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  drivers/platform/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
> index fbbe4f77aa5d..837202842a6f 100644
> --- a/drivers/platform/Makefile
> +++ b/drivers/platform/Makefile
> @@ -11,4 +11,4 @@ obj-$(CONFIG_OLPC_EC)		+= olpc/
>  obj-$(CONFIG_GOLDFISH)		+= goldfish/
>  obj-$(CONFIG_CHROME_PLATFORMS)	+= chrome/
>  obj-$(CONFIG_SURFACE_PLATFORMS)	+= surface/
> -obj-$(CONFIG_ARM64)		+= arm64/
> +obj-$(CONFIG_ARM64_PLATFORM_DEVICES)	+= arm64/

I made a second ib tag with this patch.

I'm a bit disappointed that LKP didn't catch this in the patch stage, it 
feels almost as if it never built any of the versions.


-- 
 i.