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libnvdimm, label: Fix sparse warning 

The kbuild robot reports:

drivers/nvdimm/label.c:500:32: warning: restricted __le32 degrades to integer

...read 'nslot' into a local u32.

Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2018-10-11 18:25:20 -07:00
parent 7d47aad457
commit 97052c1c31
1 changed files with 3 additions and 1 deletions
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4
drivers/nvdimm/label.c
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@ -424,6 +424,7 @@ int nd_label_data_init(struct nvdimm_drvdata *ndd)
struct nd_namespace_index *nsindex;
unsigned int i;
int rc = 0;
u32 nslot;
if (ndd->data)
return 0;
@ -495,9 +496,10 @@ int nd_label_data_init(struct nvdimm_drvdata *ndd)
/* Determine starting offset for label data */
offset = __le64_to_cpu(nsindex->labeloff);
nslot = __le32_to_cpu(nsindex->nslot);
/* Loop through the free list pulling in any active labels */
for (i = 0; i < nsindex->nslot; i++, offset += ndd->nslabel_size) {
for (i = 0; i < nslot; i++, offset += ndd->nslabel_size) {
size_t label_read_size;
/* zero out the unused labels */