diff options
Diffstat (limited to 'drivers/nvme/host')
| -rw-r--r-- | drivers/nvme/host/ioctl.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 7b0e2c9cdcae..114b490592b0 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -556,22 +556,30 @@ long nvme_ns_chr_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return __nvme_ioctl(ns, cmd, (void __user *)arg); } -static int nvme_ns_uring_cmd(struct nvme_ns *ns, struct io_uring_cmd *ioucmd, - unsigned int issue_flags) +static int nvme_uring_cmd_checks(unsigned int issue_flags) { - struct nvme_ctrl *ctrl = ns->ctrl; - int ret; - - BUILD_BUG_ON(sizeof(struct nvme_uring_cmd_pdu) > sizeof(ioucmd->pdu)); - /* IOPOLL not supported yet */ if (issue_flags & IO_URING_F_IOPOLL) return -EOPNOTSUPP; - /* NVMe passthrough requires bit SQE/CQE support */ + /* NVMe passthrough requires big SQE/CQE support */ if ((issue_flags & (IO_URING_F_SQE128|IO_URING_F_CQE32)) != (IO_URING_F_SQE128|IO_URING_F_CQE32)) return -EOPNOTSUPP; + return 0; +} + +static int nvme_ns_uring_cmd(struct nvme_ns *ns, struct io_uring_cmd *ioucmd, + unsigned int issue_flags) +{ + 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; switch (ioucmd->cmd_op) { case NVME_URING_CMD_IO: |