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@xxxxxxxxx>
---
drivers/nvme/host/ioctl.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c
index 1d769c842fbf..6f351da7f049 100644
--- a/drivers/nvme/host/ioctl.c
+++ b/drivers/nvme/host/ioctl.c
@@ -404,7 +404,7 @@ 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,
@@ -634,8 +634,6 @@ 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;
--
2.46.0
