[PATCH] nvme-pci: expose active quirks in sysfs

[Maurizio Lombardi]

On Tue Oct 28, 2025 at 5:32 PM CET, Bart Van Assche wrote:
> On 10/28/25 7:29 AM, Maurizio Lombardi wrote:
>> Currently, there is no straightforward way for a user to inspect
>> the quirks value from userspace.
>> Add a new read-only sysfs attribute "quirks";
>> reading this file will display the hexadecimal
>> value of the ctrl->quirks bitmask for the given NVMe device.
>
> This patch changes the constants in enum nvme_quirks from
> kernel-internal constants into an ABI. I'm not sure that's what we
> want.

I understand your concern.
I could respin it to export the names of the active quirks
rather than the raw bitmask, if there is an interest in having
this feature.

Maurizio