Messages in this thread | | | From | John Garry <> | Subject | Re: v5.9-rc1 commit reliably breaks pci nvme detection | Date | Fri, 21 Aug 2020 08:28:03 +0100 |
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On 20/08/2020 18:12, Christoph Hellwig wrote: > On Thu, Aug 20, 2020 at 11:10:58AM -0600, Jens Axboe wrote: >> To be fair, I've only heard this one complaint about it, so hopefully it's >> not too widespread. I'm on an x86-64 laptop myself with nvme, and it works >> just fine:-) > The cause for this is the weird NVMe of by ones, where 0 in a field > means 1.
I thought that this was a common trick by spec writers to fit a number in range (0, 2^x] in x bits (as opposed to x+1).
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