libnvdimm/label: Remove the dpa align check

There's no strict requirement why slot_valid() needs to check for page alignment and it would seem to actively hurt cross-page-size compatibility. Let's delete the check and rely on checksum validation. Signed-off-by: Aneesh Kumar K.V <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Dan Williams <[email protected]>
adn770 · Sep 5, 2019 · 047e0ef · 047e0ef
1 parent edbb52c
commit 047e0ef
Showing 1 changed file with 0 additions and 5 deletions.
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c
@@ -353,11 +353,6 @@ static bool slot_valid(struct nvdimm_drvdata *ndd,
 	if (slot != __le32_to_cpu(nd_label->slot))
 		return false;
 
-	/* check that DPA allocations are page aligned */
-	if ((__le64_to_cpu(nd_label->dpa)
-				| __le64_to_cpu(nd_label->rawsize)) % SZ_4K)
-		return false;
-
 	/* check checksum */
 	if (namespace_label_has(ndd, checksum)) {
 		u64 sum, sum_save;