Re: [PATCH] PCI: mvebu: Mark driver as BROKEN

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Hello,

On Fri, Aug 04, 2023 at 03:46:22PM +0200, Uwe Kleine-König wrote:
> On Fri, Aug 04, 2023 at 12:35:13PM +0100, Russell King (Oracle) wrote:
> > So it seems this patch got applied, but it wasn't Cc'd to
> > linux-arm-kernel or anyone else, so those of us with platforms never
> > had a chance to comment on it.
> > 
> > *** This change causes a regression to working setups. ***
> > 
> > It appears that the *only* reason this patch was proposed is to stop a
> > kernel developer receiving problem reports from a set of users, but
> > completely ignores that there is another group of users where this works
> > fine - and thus the addition of this patch causes working setups to
> > regress.
> > 
> > Because one is being bothered with problem reports is not a reason to
> > mark a driver broken - and especially not doing so in a way that those
> > who may be affected don't get an opportunity to comment on the patch!
> > Also, there is _zero_ information provided on what the reported problems
> > actually are, so no one else can guess what these issues are.
> > 
> > However, given that there are working setups and this change causes
> > those to regress, it needs to be reverted.
> > 
> > For example, I have an Atheros PCIe WiFi card in an Armada 388 Clearfog
> > platform, and this works fine.
> > 
> > Uwe has a SATA controller for a bunch of disks in an Armada 370 based
> > NAS platform that is connected to PCIe, and removing PCIe support
> > effectively makes his platform utterly useless.
> 
> While this is true there is really a problem on my platform with
> accessing the hard disks via that pci controller and a 88SE9215 SATA
> controller. While it seems to work in principle, it's incredible slow.
> 
> I intend to bisect that, 6.1.x is still fine. Don't know when I find the
> time though, as there are a few things that are more important
> currently.

I did that and found next-20230803 to be bad but next-20230804 is good.
I didn't debug that further and didn't spot anything obvious in

	git log --oneline --no-merges --left-right next-20230803...next-20230804

. I will just assume the problem is gone for good.

So now I'm in the position to say: For me PCI_MVEBU works fine and so I
support Russell's request to revert
b3574f579ece24439c90e9a179742c61205fbcfa.

Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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