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authorDan Williams <dan.j.williams@intel.com>2018-10-11 18:25:20 -0700
committerDan Williams <dan.j.williams@intel.com>2018-10-12 08:39:41 -0700
commit97052c1c31d5bcf08823ce1ea272447edd2d52de (patch)
treec40d5db2a641f3d03b1b18731b8904ada4a89fbc /drivers/nvdimm
parent7d47aad4570e5e6e9a8162bb417ca9b74132f27c (diff)
downloadlinux-97052c1c31d5bcf08823ce1ea272447edd2d52de.tar.gz
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>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/label.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c
index 7f03d117824f..750dbaa6ce82 100644
--- a/drivers/nvdimm/label.c
+++ b/drivers/nvdimm/label.c
@@ -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 */