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authorChristoph Hellwig <hch@lst.de>2020-03-25 14:19:35 +0100
committerKeith Busch <kbusch@kernel.org>2020-03-26 04:51:56 +0900
commitfb314eb0cbb2e11540d1ae1a7b28346397f621ef (patch)
tree9b72ee4b5d7729b49a0568f36d1ac50ceb2e2df7 /drivers/nvme
parentbea54ef53fce57c8b2f11315c9384e43b2ecb321 (diff)
downloadlinux-fb314eb0cbb2e11540d1ae1a7b28346397f621ef.tar.bz2
nvme: refactor nvme_identify_ns_descs error handling
Move the handling of an error into the function from the caller, and only do it for an actual error on the admin command itself, not the command parsing, as that should be enough to deal with devices claiming a bogus version compliance. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 66fe301d9abb..6bd1c6dfac6b 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1102,8 +1102,17 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
status = nvme_submit_sync_cmd(ctrl->admin_q, &c, data,
NVME_IDENTIFY_DATA_SIZE);
- if (status)
+ if (status) {
+ dev_warn(ctrl->device,
+ "Identify Descriptors failed (%d)\n", status);
+ /*
+ * Don't treat an error as fatal, as we potentially already
+ * have a NGUID or EUI-64.
+ */
+ if (status > 0)
+ status = 0;
goto free_data;
+ }
for (pos = 0; pos < NVME_IDENTIFY_DATA_SIZE; pos += len) {
struct nvme_ns_id_desc *cur = data + pos;
@@ -1757,26 +1766,15 @@ static void nvme_config_write_zeroes(struct gendisk *disk, struct nvme_ns *ns)
static int nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
struct nvme_id_ns *id, struct nvme_ns_ids *ids)
{
- int ret = 0;
-
memset(ids, 0, sizeof(*ids));
if (ctrl->vs >= NVME_VS(1, 1, 0))
memcpy(ids->eui64, id->eui64, sizeof(id->eui64));
if (ctrl->vs >= NVME_VS(1, 2, 0))
memcpy(ids->nguid, id->nguid, sizeof(id->nguid));
- if (ctrl->vs >= NVME_VS(1, 3, 0)) {
- /* Don't treat error as fatal we potentially
- * already have a NGUID or EUI-64
- */
- ret = nvme_identify_ns_descs(ctrl, nsid, ids);
- if (ret)
- dev_warn(ctrl->device,
- "Identify Descriptors failed (%d)\n", ret);
- if (ret > 0)
- ret = 0;
- }
- return ret;
+ if (ctrl->vs >= NVME_VS(1, 3, 0))
+ return nvme_identify_ns_descs(ctrl, nsid, ids);
+ return 0;
}
static bool nvme_ns_ids_valid(struct nvme_ns_ids *ids)