linux-kernel - Re: [PATCH 01/13] arm: debug: remove obsolete debug code for DEBUG_ZTE

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Message-ID: <CAK8P3a2UmTj2imJWdeLHX0TTV36Hk-Xx5c3j8cPe+Gk33-3Tyw@mail.gmail.com>
Date:   Thu, 28 Oct 2021 16:38:08 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc:     Russell King <linux@...linux.org.uk>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Sekhar Nori <nsekhar@...com>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Linus Walleij <linusw@...nel.org>,
        Imre Kaloz <kaloz@...nwrt.org>,
        Krzysztof Halasa <khalasa@...p.pl>,
        Avi Fishman <avifishman70@...il.com>,
        Tomer Maimon <tmaimon77@...il.com>,
        Tali Perry <tali.perry1@...il.com>,
        Patrick Venture <venture@...gle.com>,
        Nancy Yuen <yuenn@...gle.com>,
        Benjamin Fair <benjaminfair@...gle.com>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        kernel-janitors@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/13] arm: debug: remove obsolete debug code for DEBUG_ZTE_ZX

On Thu, Oct 28, 2021 at 4:19 PM Lukas Bulwahn <lukas.bulwahn@...il.com> wrote:
>
> Commit 89d4f98ae90d ("ARM: remove zte zx platform") removes the config
> DEBUG_ZTE_ZX. Hence, since then, the "ifdef CONFIG_DEBUG_ZTE_ZX" in
> ./arch/arm/include/debug/pl01x.S is dead code.
>
> Fortunately, ./scripts/checkkconfigsymbols.py detects this and warns:
>
> DEBUG_ZTE_ZX
> Referencing files: arch/arm/include/debug/pl01x.S
>
> So, remove the obsolete ifdef CONFIG_DEBUG_ZTE_ZX.
>
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>

Reviewed-by: Arnd Bergmann <arnd@...db.de>

I see another copy of these constants in drivers/tty/serial/amba-pl011.c,
which we should probably clean up as well.

          Arnd