Re: [PATCH 0/8] add generic builtin command line

From: Maksym Kokhan <maksym.kokhan@globallogic.com>
To: Daniel Walker <dwalker@fifo99.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	Paul Burton <paul.burton@mips.com>,
	James Hogan <jhogan@kernel.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Daniel Walker <danielwa@cisco.com>,
	Andrii Bordunov <aborduno@cisco.com>,
	Ruslan Bilovol <rbilovol@cisco.com>,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-efi@vger.kernel.org, linux-mips@linux-mips.org,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 0/8] add generic builtin command line
Date: Mon, 8 Oct 2018 21:01:28 +0300	[thread overview]
Message-ID: <CAMT6-xiQ0vGcKpA+SiWHQWQFwU9Oo9j=Zin+UXDoPqKTz5fbeA@mail.gmail.com> (raw)
In-Reply-To: <20180929181725.GB27441@fifo99.com>

Hi, Daniel

On Sat, Sep 29, 2018 at 9:17 PM <dwalker@fifo99.com> wrote:
>
> On Thu, Sep 27, 2018 at 07:55:08PM +0300, Maksym Kokhan wrote:
> > Daniel Walker (7):
> >   add generic builtin command line
> >   drivers: of: ifdef out cmdline section
> >   x86: convert to generic builtin command line
> >   arm: convert to generic builtin command line
> >   arm64: convert to generic builtin command line
> >   mips: convert to generic builtin command line
> >   powerpc: convert to generic builtin command line
> >
>
> When I originally submitted these I had a very good conversion with Rob Herring
> on the device tree changes. It seemed fairly clear that my approach in these
> changes could be done better. It effected specifically arm64, but a lot of other
> platforms use the device tree integrally. With arm64 you can reduce the changes
> down to only Kconfig changes, and that would likely be the case for many of the
> other architecture. I made patches to do this a while back, but have not had
> time to test them and push them out.

Can you please share this patches? I could test them and use to improve this
generic command line implementation.

> In terms of mips I think there's a fair amount of work needed to pull out their
> architecture specific mangling into something generic. Part of my motivation for
> these was to take the architecture specific feature and open that up for all the
> architecture. So it makes sense that the mips changes should become part of
> that.

This is really makes sense, and we have intentions to implement it
afterward. It would be easier to initially merge this simple
implementation and then develop it step by step.

> The only changes which have no comments are the generic changes, x86, and
> powerpc. Those patches have been used at Cisco for years with no issues.
> I added those changes into my -next tree for a round of testing. Assuming there
> are no issues I can work out the merging with the architecture maintainers.
> As for the other changes I think they can be done in time, as long as the
> generic parts of upstream the rest can be worked on by any of the architecture
> developers.

Thanks,
Maksym