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Date:   Fri, 4 Mar 2022 10:59:53 -0800
From:   Josh Poimboeuf <jpoimboe@redhat.com>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     x86@kernel.org, joao@overdrivepizza.com, hjl.tools@gmail.com,
        andrew.cooper3@citrix.com, linux-kernel@vger.kernel.org,
        ndesaulniers@google.com, keescook@chromium.org,
        samitolvanen@google.com, mark.rutland@arm.com,
        alyssa.milburn@intel.com, mbenes@suse.cz, rostedt@goodmis.org,
        mhiramat@kernel.org, alexei.starovoitov@gmail.com
Subject: Re: [PATCH v3 05/39] x86/ibt: Add ANNOTATE_NOENDBR
Message-ID: <20220304185953.pom5at6roevsmm2w@treble>
References: <20220303112321.422525803@infradead.org>
 <20220303112825.251775688@infradead.org>
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On Thu, Mar 03, 2022 at 12:23:26PM +0100, Peter Zijlstra wrote:
> In order to have objtool warn about code references to !ENDBR
> instruction, we need an annotation to allow this for non-control-flow
> instances -- consider text range checks, text patching, or return
> trampolines etc.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> Reviewed-by: Kees Cook <keescook@chromium.org>
> ---
>  include/linux/objtool.h |   16 ++++++++++++++++
>  1 file changed, 16 insertions(+)

Also needs copied over to tools/include/linux/objtool.h to avoid the
sync warning.

-- 
Josh