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Message-ID: <CAMuHMdX33SQe8n7SRda0TjQV05yP1zbuw129Jqjknt8=CY=LjA@mail.gmail.com>
Date: Fri, 29 Jan 2016 09:01:31 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Arnd Bergmann <arnd@...db.de>
Cc: Russell King - ARM Linux <linux@....linux.org.uk>,
Fengguang Wu <fengguang.wu@...el.com>,
Linux-Arch <linux-arch@...r.kernel.org>,
Linux MIPS Mailing List <linux-mips@...ux-mips.org>,
James Hogan <james.hogan@...tec.com>,
Paul Burton <paul.burton@...tec.com>,
linux-kbuild <linux-kbuild@...r.kernel.org>,
Heinrich Schuchardt <xypron.glpk@....de>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Ralf Baechle <ralf@...ux-mips.org>,
Florian Fainelli <f.fainelli@...il.com>,
Michal Marek <mmarek@...e.com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [linux-review:James-Hogan/kbuild-Remove-stale-asm-generic-wrappers/20160119-183642]
d979f99e9cc14e2667e9b6e268db695977e4197a BUILD DONE
Hi Arnd,
On Fri, Jan 29, 2016 at 12:07 AM, Arnd Bergmann <arnd@...db.de> wrote:
> The other related issue is the DEBUG_UART_{VIRT,PHYS} setting,
> where there is no safe platform-specific default. I have two
> ideas for working around that, maybe one of them sounds ok to
> you:
>
> a) find a way to warn and/or disable DEBUG_LL when no address
> is set, rather than failing the build
>
> b) add 'default 0 if COMPILE_TEST' to make it harder to get this
> wrong by accident (hopefully nobody tries to run a COMPILE_TEST
> kernel). Also maybe add a #warning if DEBUG_UART_VIRT is
Make sure to add it at the end of the list, so enabling COMPILE_TEST in a
working .config should give another working .config.
Perhaps you can use 0xdeadbeef instead of 0, and add
#if DEBUG_UART_PHYS == 0xdeadbeed
#warning Broken value of DEBUG_UART_PHYS.
#endif
somewhere?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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