[PATCH AUTOSEL 6.14 295/642] nvme: map uring_cmd data even if address is 0

Sasha Levin sashal at kernel.org
Tue May 20 07:13:44 PDT 2025


On Mon, May 05, 2025 at 04:15:47PM -0700, Caleb Sander Mateos wrote:
>I wouldn't backport this change to any releases. It's a potential
>behavior change if a userspace application was submitting NVMe
>passthru commands with a NULL data pointer but nonzero data length and
>expecting the data buffer to be ignored. And supporting the data field
>set to 0 is only necessary for ublk zero-copy, which is introduced in
>6.15.

I'll drop it, thanks!

-- 
Thanks,
Sasha



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