Re: [tip: x86/build] x86/boot: Add back some padding for the CRC-32 checksum

[Ard Biesheuvel]

On Mon, 14 Apr 2025 at 15:56, Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> On Wed, Mar 12, 2025 at 12:09:34PM -0000, tip-bot2 for Ard Biesheuvel wrote:
> > The following commit has been merged into the x86/build branch of tip:
> >
> > Commit-ID:     e471a86a8c523eccdfd1c4745ed7ac7cbdcc1f3f
> > Gitweb:        https://git.kernel.org/tip/e471a86a8c523eccdfd1c4745ed7ac7cbdcc1f3f
> > Author:        Ard Biesheuvel <ardb@xxxxxxxxxx>
> > AuthorDate:    Wed, 12 Mar 2025 09:12:05 +01:00
> > Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
> > CommitterDate: Wed, 12 Mar 2025 13:04:52 +01:00
> >
> > x86/boot: Add back some padding for the CRC-32 checksum
> >
> > Even though no uses of the bzImage CRC-32 checksum are known, ensure
> > that the last 4 bytes of the image are unused zero bytes, so that the
> > checksum can be generated post-build if needed.
>
> Sounds like it is not needed and sounds like we should whack this thing no?
>
> Or are we doing a grace period and then whack it when that grace period
> expires?
>

This was done on hpa's request - maybe he has a duration in mind for
this grace period?