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Date:   Mon, 26 Sep 2022 17:56:38 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Pavel Machek <pavel@denx.de>
Cc:     linux-kernel@vger.kernel.org, stable@vger.kernel.org,
        James Morse <james.morse@arm.com>,
        Sami Tolvanen <samitolvanen@google.com>,
        Kees Cook <keescook@chromium.org>,
        Ard Biesheuvel <ardb@kernel.org>,
        Will Deacon <will@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: Re: [PATCH 4.14 05/40] efi/libstub: Disable Shadow Call Stack
Message-ID: <YzHLtttzBVeg8gpM@kroah.com>
References: <20220926100738.148626940@linuxfoundation.org>
 <20220926100738.422260948@linuxfoundation.org>
 <20220926111408.GF8978@amd>
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On Mon, Sep 26, 2022 at 01:14:08PM +0200, Pavel Machek wrote:
> Hi!
> 
> > From: Sami Tolvanen <samitolvanen@google.com>
> > 
> > [ Upstream commit cc49c71d2abe99c1c2c9bedf0693ad2d3ee4a067 ]
> > 
> > Shadow stacks are not available in the EFI stub, filter out SCS
> > flags.
> 
> AFAICT, SCS is not available in 4.19, CC_FLAGS_SCS is not defined
> there, and we should apply this patch.

Now dropped from everywhere, thanks.

greg k-h