[PATCH 6/8] tools uapi headers: add linux/module_signature.h

[Thomas Weißschuh]

On Mon, Mar 02, 2026 at 01:32:34PM +0000, bot+bpf-ci at kernel.org wrote:
> > diff --git a/tools/include/uapi/linux/module_signature.h b/tools/include/uapi/linux/module_signature.h
> > --- /dev/null
> > +++ b/tools/include/uapi/linux/module_signature.h
> 
> [ ... ]
> 
> > +enum module_signature_type {
> > +	MODULE_SIGNATURE_TYPE_PKCS7 = 2,	/* Signature in PKCS#7 message */
> > +	MODULE_SIGNATURE_TYPE_MERKLE = 3,	/* Merkle proof for modules */
> > +};
> 
> The source UAPI header at include/uapi/linux/module_signature.h does not
> define MODULE_SIGNATURE_TYPE_MERKLE:
> 
> include/uapi/linux/module_signature.h:
>     enum module_signature_type {
>         MODULE_SIGNATURE_TYPE_PKCS7 = 2,
>     };
> 
> Was this value intentionally added here ahead of the kernel header?  It
> appears to come from the CONFIG_MODULE_HASHES series referenced in the
> cover letter, but no commit in this series adds it to the kernel UAPI
> header, so the tools copy diverges from its source at creation time.

Indeed, this should only appear in the follow-up CONFIG_MODULE_HASHES series.
I'll fix it for v2.

> ---
> AI reviewed your patch. Please fix the bug or email reply why it's not a bug.
> See: https://github.com/kernel-patches/vmtest/blob/master/ci/claude/README.md
> 
> CI run summary: https://github.com/kernel-patches/bpf/actions/runs/22577240517
> 
> AI-authorship-score: low
> AI-authorship-explanation: Straightforward mechanical UAPI header copy with terse commit message, consistent with experienced kernel developer style from a known Linutronix contributor.
> issues-found: 1
> issue-severity-score: low
> issue-severity-explanation: The tools UAPI copy contains an enum value (MODULE_SIGNATURE_TYPE_MERKLE) not present in the kernel source header, creating a content mismatch that does not affect runtime behavior but violates the convention that tools copies mirror kernel UAPI headers.