linux-hardening - Re: [PATCH v3 7/7] UAPI: Introduce KUnit userspace compatibility

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Date:   Thu, 3 Mar 2022 09:28:04 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     David Gow <davidgow@...gle.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Vitor Massaru Iha <vitor@...saru.org>,
        Daniel Latypov <dlatypov@...gle.com>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        linux-kbuild@...r.kernel.org,
        KUnit Development <kunit-dev@...glegroups.com>,
        llvm@...ts.linux.dev, x86@...nel.org,
        linux-hardening@...r.kernel.org
Subject: Re: [PATCH v3 7/7] UAPI: Introduce KUnit userspace compatibility

On Thu, Mar 03, 2022 at 02:05:56PM +0100, Greg KH wrote:
> On Thu, Mar 03, 2022 at 04:27:13PM +0800, David Gow wrote:
> > On Mon, Feb 28, 2022 at 2:45 AM Kees Cook <keescook@...omium.org> wrote:
> > > diff --git a/include/uapi/misc/kunit.h b/include/uapi/misc/kunit.h
> > > new file mode 100644
> > > index 000000000000..afdffda583ae
> > > --- /dev/null
> > > +++ b/include/uapi/misc/kunit.h
> > > @@ -0,0 +1,181 @@
> > > +#ifndef __UAPI_MISC_KUNIT_H__
> > > +#define __UAPI_MISC_KUNIT_H__
> > > +/*
> > > + * This is a light-weight userspace drop-in replacement for the in-kernel
> 
> <snip>
> 
> Someone forgot a SPDX license line for the new file.  Didn't checkpatch
> complain about this?  :(

Yeah, that file has a bunch of problems. ;) The UAPI header checking
logic also freaks out, etc, etc. I'll being fixing that and the other
issues.

-- 
Kees Cook