From: Mark Brown <broonie@kernel.org>
To: David Daney <ddaney@caviumnetworks.com>
Cc: Jan Glauber <jan.glauber@caviumnetworks.com>,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
"Steven J. Hill" <steven.hill@cavium.com>,
David Daney <david.daney@cavium.com>
Subject: Re: [PATCH 6/6] spi: octeon: Add thunderx driver
Date: Wed, 27 Jul 2016 20:08:55 +0100 [thread overview]
Message-ID: <20160727190855.GA11806@sirena.org.uk> (raw)
In-Reply-To: <5798FC86.8040601@caviumnetworks.com>
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On Wed, Jul 27, 2016 at 11:25:10AM -0700, David Daney wrote:
> On 07/27/2016 11:12 AM, Mark Brown wrote:
> > On Mon, Jul 25, 2016 at 09:31:15AM -0700, David Daney wrote:
> > > ARCH_THUNDER needs to die, so perhaps it should be (ARM64 || COMPILE_TEST)
> > > && PCI && 64BIT if you really want to hide it from non-arm64 kernel configs.
> > It does? Why?
> It adds clutter. If we build a generic kernel, we first must select all the
> ARCH_*, then go back and select the devices we want. Not much of a value
> add.
The value comes when moving to a new kernel version and updating your
config or doing a new board - if you're building for a specific system
then you get fewer new driver prompts (especially if you've got a
smaller number of hotpluggable buses enabled). This is the much more
common case for people doing kernel configuration, it did bother people
a lot in the past.
> Better to just directly select the devices and remove this middle ARCH_*
> layer.
It's one option every time a new vendor appears rather than every time a
new driver appears - it's a useful quality of life improvement for
people who are doing system customization that is fairly painless for
those doing generic kernels (who can just enable everything).
> Also who is responsible for making sure the proper ARCH_* constraints are
> maintained? If we remove ARCH_THUNDER, no need to worry about this.
People using the devices or writing drivers... this really isn't
particularly challenging and it's not like it's hard to fix if people
notice issues.
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next prev parent reply other threads:[~2016-07-27 19:09 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-23 10:42 [PATCH 0/6] SPI ThunderX driver Jan Glauber
2016-07-23 10:42 ` [PATCH 1/6] spi: octeon: Convert driver to use readq()/writeq() functions Jan Glauber
2016-07-23 10:42 ` [PATCH 2/6] spi: octeon: Store system clock freqency in struct octeon_spi Jan Glauber
2016-07-23 10:42 ` [PATCH 3/6] spi: octeon: Put register offsets into a struct Jan Glauber
2016-07-23 10:42 ` [PATCH 4/6] spi: octeon: Move include file from arch/mips to drivers/spi Jan Glauber
2016-07-23 10:42 ` [PATCH 5/6] spi: octeon: Split driver into Octeon specific and common parts Jan Glauber
2016-07-24 18:38 ` Paul Gortmaker
2016-07-25 11:32 ` Jan Glauber
2016-07-24 20:54 ` Mark Brown
2016-07-25 11:37 ` Jan Glauber
2016-07-25 17:49 ` [PATCH v2] " Jan Glauber
2016-07-23 10:42 ` [PATCH 6/6] spi: octeon: Add thunderx driver Jan Glauber
2016-07-24 21:04 ` Mark Brown
2016-07-25 15:51 ` Jan Glauber
2016-07-25 16:16 ` Mark Brown
2016-07-25 16:31 ` David Daney
2016-07-25 17:56 ` [PATCH v2] " Jan Glauber
2016-07-27 18:08 ` Mark Brown
2016-07-28 8:12 ` Jan Glauber
2016-07-28 13:58 ` Mark Brown
2016-07-27 18:12 ` [PATCH 6/6] " Mark Brown
2016-07-27 18:25 ` David Daney
2016-07-27 19:08 ` Mark Brown [this message]
2016-07-25 16:20 ` Mark Brown
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