linux-kernel - Re: [PATCH] x86/KASLR: always return a value from process_mem

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Message-ID: <CAKwvOdkjMv8xGTEagpbsbe3ky4eAXpUAXxkDUcZp9DN8xY5rYw@mail.gmail.com>
Date:   Wed, 6 Mar 2019 13:37:30 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Louis Taylor <louis@...gniz.eu>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        fanc.fnst@...fujitsu.com, bhe@...hat.com,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux@...glegroups.com,
        Jon Flatley <jflat@...omium.org>
Subject: Re: [PATCH] x86/KASLR: always return a value from process_mem_region

On Wed, Mar 6, 2019 at 12:38 PM Louis Taylor <louis@...gniz.eu> wrote:
>
> On Wed, Mar 06, 2019 at 09:02:47PM +0100, Thomas Gleixner wrote:
> > On Sat, 2 Mar 2019, Louis Taylor wrote:
> >
> > > When compiling with -Wreturn-type, clang warns:
> > >
> > > arch/x86/boot/compressed/kaslr.c:704:1: warning: control may reach end of
> > >       non-void function [-Wreturn-type]
> > >
> > > This function's return statement should probably have been placed
> > > outside the #endif, so move it there
> > >
> > > Link: https://github.com/ClangBuiltLinux/linux/issues/360
> > > Signed-off-by: Louis Taylor <louis@...gniz.eu>
> >
> > This lacks a
> >
> > Fixes: commitsha1 (".....")
>
> Fixes: 690eaa532057 ("x86/boot/KASLR: Limit KASLR to extract the kernel in immovable memory only")
>
> Would you like me to resend with that tag?


Looks like it was added.
Looking at https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/boot,
it looks like part of the commit message got cut off. `#endif, so move
it there` is missing?
-- 
Thanks,
~Nick Desaulniers