Re: [Buildroot] [PATCH 1/1] package/wilc-driver: bump to linux4microchip-2024.04

[Thomas Petazzoni via buildroot <buildroot@buildroot.org>]

Hello Kris,

On Wed, 31 Jul 2024 23:55:48 +0000
Kris Bahnsen via buildroot <buildroot@buildroot.org> wrote:

> Latest update from Microchip's kernel.
> 
> Removes Buildroot patches and instead incorporates these directly
> to a community branch of the repo. Also adds a check in wilc-driver.mk
> to use the new linux4microchip-2024.04-community tag when
> BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_4 is true.

Could you clarify why the code in linux4microchip-2024.04-community
doesn't work on older kernels?

> We investigated the potential to use backports to make maintenance
> easier as I mentioned, however it did not work out as we had expected.

Not sure what "backports" you're referring to here. Backporting what
from what, to what?

> I'm not sure if I did the kernel dependency check in the most elegant
> way. If there is a preferred way to handle that, please let me know and
> I'll happily make a revision.

The version dependency check is annoying, which is why I'm asking above
if we could get away with it, which would be the best solution.

> -WILC_DRIVER_VERSION = linux4microchip-2021.10-1
> +# Set up driver version based on kernel headers
> +# See the project's README for more information on this
> +ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_6_4),y)
> +WILC_DRIVER_VERSION = linux4microchip-2024.04-community
> +else
> +WILC_DRIVER_VERSION = linux4microchip-2021.10-1-upto-linux-6.6
> +endif

Unfortunately, we cannot use the kernel headers version. Some people
use external toolchains that have possibly a bit old kernel headers,
but they may be running a very up-to-date kernel. So the only option I
believe is to do like AUFS in linux/Config.ext.in, with an explicit
choice.

But that's also going to break badly with autobuilder testing. So
really, if we can use a single version for all kernel versions, it
would be much, much, much better.

Thanks!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot