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nvme: use helpers to access io_uring cmd space

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Command implementations shouldn't be directly looking into io_uring_cmd
to carve free space. Use an io_uring helper, which will also do build
time size sanitisation.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Pavel Begunkov
2024-10-18 17:16:37 +01:00
committed by Keith Busch
parent fdad1a20cd
commit 5e52f71f85
1 changed files with 1 additions and 3 deletions
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4
drivers/nvme/host/ioctl.c
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@@ -402,7 +402,7 @@ struct nvme_uring_cmd_pdu {
static inline struct nvme_uring_cmd_pdu *nvme_uring_cmd_pdu(
struct io_uring_cmd *ioucmd)
{
return (struct nvme_uring_cmd_pdu *)&ioucmd->pdu;
return io_uring_cmd_to_pdu(ioucmd, struct nvme_uring_cmd_pdu);
}
static void nvme_uring_task_cb(struct io_uring_cmd *ioucmd,
@@ -632,8 +632,6 @@ static int nvme_ns_uring_cmd(struct nvme_ns *ns, struct io_uring_cmd *ioucmd,
struct nvme_ctrl *ctrl = ns->ctrl;
int ret;
BUILD_BUG_ON(sizeof(struct nvme_uring_cmd_pdu) > sizeof(ioucmd->pdu));
ret = nvme_uring_cmd_checks(issue_flags);
if (ret)
return ret;