[PATCH][next] nvme-loop: Avoid -Wflex-array-member-not-at-end warning

[Chaitanya Kulkarni]

On 3/28/25 07:25, Gustavo A. R. Silva wrote:
> -Wflex-array-member-not-at-end was introduced in GCC-14, and we are
> getting ready to enable it, globally.
>
> Move the conflicting declaration to the end of the structure. Notice
> that `struct nvme_loop_iod` is a flexible structure --a structure
> that contains a flexible-array member.

Indeed :-

  18 struct nvme_loop_iod {
  19         struct nvme_request     nvme_req;
  20         struct nvme_command     cmd;
  21         struct nvme_completion  cqe;
  22         struct nvmet_req        req;
  23         struct nvme_loop_queue  *queue;
  24         struct work_struct      work;
  25         struct sg_table sg_table;
  26         struct scatterlist      first_sgl[];
  27 };


> Fix the following warning:
>
> drivers/nvme/target/loop.c:36:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
>
> Signed-off-by: Gustavo A. R. Silva<gustavoars at kernel.org>

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>

-ck