[PATCH RFC next 03/18] scripts/Makefile.extrawarn: migrate -Wvla to a U-Boot-specific file

[Simon Glass]

Hi Quentin,

On 2026-05-04T13:20:27, Quentin Schulz <foss+uboot at 0leil.net> wrote:
> scripts/Makefile.extrawarn: migrate -Wvla to a U-Boot-specific file
>
> In the next commits, we'll be synchronizing scripts/Makefile.extrawarn
> with the Linux kernel's at version 6.1 which is what we've been claiming
> we've synced to for a while but that isn't true.
>
> In kernel commit 0bb95f80a38f ("Makefile: Globally enable VLA warning"),
> available in v4.20, -Wvla is now enabled tree-wide and not present in
> scripts/Makefile.extrawarn anymore. When we'll be syncing to v6.1, we'll
> therefore be losing this flag (since it's not in our root Makefile). We
> could backport the changes to the root Makefile to our root Makefile but
> U-Boot is not VLA-free unlike the kernel.
>
> We have two options:
> - backport the changes to the root Makefile and disable it in
>   scripts/Makefile.extrawarn.u-boot,
> - only enable it in scripts/Makefile.extrawarn.u-boot, with the same
>   warn level as currently: 3,
>
> For now, do the second option. We should probably go for the first
> [...]
>
> Makefile                          | 1 +
>  scripts/Makefile.extrawarn        | 1 -
>  scripts/Makefile.extrawarn.u-boot | 9 +++++++++
>  3 files changed, 10 insertions(+), 1 deletion(-)

Reviewed-by: Simon Glass <sjg at chromium.org>