Re: [PATCH] scatterlist: Update size type to support greater then 4GB size.

[David Miller]

From: Ashish Mhetre <amhetre@xxxxxxxxxx>
Date: Wed, 12 Dec 2018 11:54:13 +0530

> diff --git a/include/linux/nvme.h b/include/linux/nvme.h
> index 68e91ef..0a07a29 100644
> --- a/include/linux/nvme.h
> +++ b/include/linux/nvme.h
> @@ -587,7 +587,7 @@ enum {
>  
>  struct nvme_sgl_desc {
>  	__le64	addr;
> -	__le32	length;
> +	__le64	length;
>  	__u8	rsvd[3];
>  	__u8	type;
>  };

Isn't this a device or protocol defined datastructure?  You can't just
change it like this.