Re: [PATCH 0/1] Fix bug resulting in double hpmemsize being assigned to MMIO window

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On 2019-11-07 6:50 a.m., Nicholas Johnson wrote:
> I have split this patch off my main series, as I realised that it does 
> not need to be part of that series.
> 
> I have made some recent improvements to add assurance against it 
> breaking existing behaviour. Instead of returning the first resource of 
> the desired type regardless of it being assigned, now it goes through 
> all of the resources and returns only those of type that are not 
> assigned. Only then does it go through and return the first resource of 
> desired type that is assigned. If none are found then it returns NULL as 
> usual.
> 
> I have made extensive changes to the patch notes, also.
> 
> Logan Gunthorpe <logang@xxxxxxxxxxxx> has an alternative method of 
> fixing this same bug. Please also consider his patch and accept 
> whichever is best for Linux. All I care is that the bug be fixed.

Oh, yes, I haven't had time to follow up on this. My patch is here[1].
It has a bit more info in the commit message and is a bit less
intrusive. However, Nicholas's approach is more of a cleanup and may be
a bit cleaner going forward.

I also had another bug fix in that series I really need to find time to
update and resend. I'll try to do it in the next cycle.

Logan

[1]
https://lore.kernel.org/linux-pci/20190531171216.20532-2-logang@xxxxxxxxxxxx/



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