diff options
Diffstat (limited to 'drivers/nvme/target/admin-cmd.c')
| -rw-r--r-- | drivers/nvme/target/admin-cmd.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 35f930db3c02..a53bb6635b83 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -168,11 +168,21 @@ out: nvmet_req_complete(req, status); } +static void copy_and_pad(char *dst, int dst_len, const char *src, int src_len) +{ + int len = min(src_len, dst_len); + + memcpy(dst, src, len); + if (dst_len > len) + memset(dst + len, ' ', dst_len - len); +} + static void nvmet_execute_identify_ctrl(struct nvmet_req *req) { struct nvmet_ctrl *ctrl = req->sq->ctrl; struct nvme_id_ctrl *id; u16 status = 0; + const char model[] = "Linux"; id = kzalloc(sizeof(*id), GFP_KERNEL); if (!id) { @@ -184,14 +194,10 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) id->vid = 0; id->ssvid = 0; - memset(id->sn, ' ', sizeof(id->sn)); - snprintf(id->sn, sizeof(id->sn), "%llx", ctrl->serial); - - memset(id->mn, ' ', sizeof(id->mn)); - strncpy((char *)id->mn, "Linux", sizeof(id->mn)); - - memset(id->fr, ' ', sizeof(id->fr)); - strncpy((char *)id->fr, UTS_RELEASE, sizeof(id->fr)); + bin2hex(id->sn, &ctrl->subsys->serial, + min(sizeof(ctrl->subsys->serial), sizeof(id->sn) / 2)); + copy_and_pad(id->mn, sizeof(id->mn), model, sizeof(model) - 1); + copy_and_pad(id->fr, sizeof(id->fr), UTS_RELEASE, strlen(UTS_RELEASE)); id->rab = 6; |