diff options
| author | Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2021-06-07 22:54:50 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-06-16 06:36:16 +0300 |
| commit | e7d4b5493a2d5a6225fc572e01167e12f89c6a42 (patch) | |
| tree | 8b3f16f59dc03e7069a900229df7b98ac54fdb5c /drivers | |
| parent | d399742cd02dca6d1ed17ae7db7a366192516591 (diff) | |
| download | linux-e7d4b5493a2d5a6225fc572e01167e12f89c6a42.tar.xz | |
nvme: factor out a nvme_validate_passthru_nsid helper
Add a helper nvme_validate_passthru_nsid() to validate the nsid that
removes the nsid validation and error message print code from
nvme_user_cmd() and nvme_user_cmd64().
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvme/host/ioctl.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/nvme/host/ioctl.c b/drivers/nvme/host/ioctl.c index 2e7780ea0354..d93928d1e5bd 100644 --- a/drivers/nvme/host/ioctl.c +++ b/drivers/nvme/host/ioctl.c @@ -177,6 +177,20 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio) metadata, meta_len, lower_32_bits(io.slba), NULL, 0); } +static bool nvme_validate_passthru_nsid(struct nvme_ctrl *ctrl, + struct nvme_ns *ns, __u32 nsid) +{ + if (ns && nsid != ns->head->ns_id) { + dev_err(ctrl->device, + "%s: nsid (%u) in cmd does not match nsid (%u)" + "of namespace\n", + current->comm, nsid, ns->head->ns_id); + return false; + } + + return true; +} + static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns, struct nvme_passthru_cmd __user *ucmd) { @@ -192,12 +206,8 @@ static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns, return -EFAULT; if (cmd.flags) return -EINVAL; - if (ns && cmd.nsid != ns->head->ns_id) { - dev_err(ctrl->device, - "%s: nsid (%u) in cmd does not match nsid (%u) of namespace\n", - current->comm, cmd.nsid, ns->head->ns_id); + if (!nvme_validate_passthru_nsid(ctrl, ns, cmd.nsid)) return -EINVAL; - } memset(&c, 0, sizeof(c)); c.common.opcode = cmd.opcode; @@ -242,12 +252,8 @@ static int nvme_user_cmd64(struct nvme_ctrl *ctrl, struct nvme_ns *ns, return -EFAULT; if (cmd.flags) return -EINVAL; - if (ns && cmd.nsid != ns->head->ns_id) { - dev_err(ctrl->device, - "%s: nsid (%u) in cmd does not match nsid (%u) of namespace\n", - current->comm, cmd.nsid, ns->head->ns_id); + if (!nvme_validate_passthru_nsid(ctrl, ns, cmd.nsid)) return -EINVAL; - } memset(&c, 0, sizeof(c)); c.common.opcode = cmd.opcode; |