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| author | Dan Williams <dan.j.williams@intel.com> | 2016-04-22 22:26:05 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-04-22 22:26:05 +0300 |
| commit | 9dec4892ca9afd6aad3c9c9e6c17480ecbd04440 (patch) | |
| tree | 2959023f5940526e9062630e83dccc23386ff890 /drivers/nvdimm/btt.c | |
| parent | 8259542348d93da6a04eed979047b1fd1ca72abe (diff) | |
| download | linux-9dec4892ca9afd6aad3c9c9e6c17480ecbd04440.tar.xz | |
libnvdimm, btt: add btt startup debug
Report the reason for btt probe failures when debug is enabled.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/btt.c')
| -rw-r--r-- | drivers/nvdimm/btt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index f068b6513cd2..af09d6c26709 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1388,11 +1388,15 @@ int nvdimm_namespace_attach_btt(struct nd_namespace_common *ndns) struct btt *btt; size_t rawsize; - if (!nd_btt->uuid || !nd_btt->ndns || !nd_btt->lbasize) + if (!nd_btt->uuid || !nd_btt->ndns || !nd_btt->lbasize) { + dev_dbg(&nd_btt->dev, "incomplete btt configuration\n"); return -ENODEV; + } rawsize = nvdimm_namespace_capacity(ndns) - SZ_4K; if (rawsize < ARENA_MIN_SIZE) { + dev_dbg(&nd_btt->dev, "%s must be at least %ld bytes\n", + dev_name(&ndns->dev), ARENA_MIN_SIZE + SZ_4K); return -ENXIO; } nd_region = to_nd_region(nd_btt->dev.parent); |