Re: [PATCH v2 1/2] nvme-pci: Use size_t for length fields to handle larger sizes

Keith Busch
2025-11-17T19:35:44Z

On Mon, Nov 17, 2025 at 09:22:43PM +0200, Leon Romanovsky wrote:
> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index e5ca8301bb8b..b61ec62b0ec6 100644
> --- a/drivers/nvme/host/pci.c
> +++ b/drivers/nvme/host/pci.c
> @@ -290,14 +290,14 @@ struct nvme_iod {
> u8 flags;
> u8 nr_descriptors;
>
> - unsigned int total_len;
> + size_t total_len;

Changing the generic phys_vec sounds fine, but the nvme driver has a 8MB
limitation on how large an IO can be, so I don't think the driver's
length needs to match the phys_vec type.