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| author | Keith Busch <keith.busch@intel.com> | 2014-04-29 15:52:27 -0600 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2014-06-03 22:59:01 -0400 |
| commit | dedf4b156134e0dedec18ebecda3e74077fa7c92 (patch) | |
| tree | 760542df2883422bdfd8568173e799e70b75cef4 | |
| parent | b4e75cbf1364c4bbce3599c3279892a55b6ede07 (diff) | |
| download | op-kernel-dev-dedf4b156134e0dedec18ebecda3e74077fa7c92.zip op-kernel-dev-dedf4b156134e0dedec18ebecda3e74077fa7c92.tar.gz | |
NVMe: Use last bytes of f/w rev SCSI Inquiry
After skipping right-padded spaces, use the last four bytes of the
firmware revision when reporting the Inquiry Product Revision. These
are generally more indicative to what is running.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Acked-by: Vishal Verma <vishal.l.verma@linux.intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
| -rw-r--r-- | drivers/block/nvme-scsi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c index 13403ee..4fc25b9 100644 --- a/drivers/block/nvme-scsi.c +++ b/drivers/block/nvme-scsi.c @@ -681,6 +681,7 @@ static int nvme_trans_standard_inquiry_page(struct nvme_ns *ns, u8 resp_data_format = 0x02; u8 protect; u8 cmdque = 0x01 << 1; + u8 fw_offset = sizeof(dev->firmware_rev); mem = dma_alloc_coherent(&dev->pci_dev->dev, sizeof(struct nvme_id_ns), &dma_addr, GFP_KERNEL); @@ -716,7 +717,11 @@ static int nvme_trans_standard_inquiry_page(struct nvme_ns *ns, inq_response[7] = cmdque; /* wbus16=0 | sync=0 | vs=0 */ strncpy(&inq_response[8], "NVMe ", 8); strncpy(&inq_response[16], dev->model, 16); - strncpy(&inq_response[32], dev->firmware_rev, 4); + + while (dev->firmware_rev[fw_offset - 1] == ' ' && fw_offset > 4) + fw_offset--; + fw_offset -= 4; + strncpy(&inq_response[32], dev->firmware_rev + fw_offset, 4); xfer_len = min(alloc_len, STANDARD_INQUIRY_LENGTH); res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len); |
