Re: [PATCH v1] ata: ahci_xgene: Add AHCI Support for second generation of APM X-Gene SoC

[Russell King - ARM Linux <linux@arm.linux.org.uk>]

On Wed, Apr 01, 2015 at 06:00:33PM +0100, Catalin Marinas wrote:
> On Wed, Apr 01, 2015 at 05:39:56PM +0100, Russell King - ARM Linux wrote:
> > On Wed, Apr 01, 2015 at 12:31:16PM -0400, Tejun Heo wrote:
> > > On Wed, Apr 01, 2015 at 12:13:36PM -0400, Tejun Heo wrote:
> > > > > Signed-off-by : Suman Tripathi <stripathi@apm.com>
> > > > 
> > > > Applied to libata/for-4.1 w/ minor edit.
> > > 
> > > Reverted due to build failure from missing asm/cputype.h.
> > 
> > I'm guessing this is some kind of ARM driver, which is why
> > linux-arm-kernel has been Cc'd - though I haven't seen the original
> > patch.
> > 
> > ARM has asm/cputype.h, and has had for a long time, so "missing
> > asm/cputype.h" doesn't make sense as a reason to revert it.  Maybe
> > it's trying to be built on x86 when it should be restricted to
> > only ARM?
> > 
> > Dunno without seeing the original patch.
> 
> First search result leads here:
> 
> https://www.mail-archive.com/devicetree@vger.kernel.org/msg67774.html

Thanks.

> The driver in general should not be ARM specific, though it runs on an
> ARMv8 platform. But looking at the patch it has some errata workarounds
> triggered based on the CPU id (MIDR). That looks dodgy as it doesn't
> even check the full ID, only the variant part.

Okay, it's not ARM but an ARM64 driver, so that's your territory, not
mine. :)

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