[patch 167/198] IB/mthca: allow unaligned memory regions

[akpm]

From: Michael S. Tsirkin <mst@xxxxxxxxxxxxxx>

The first buffer of a memory region is not required to be page-aligned, so
don't return an error if it's not.

Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxxxxxx>
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---

 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions drivers/infiniband/hw/mthca/mthca_provider.c
--- 25/drivers/infiniband/hw/mthca/mthca_provider.c~ib-mthca-allow-unaligned-memory-regions	2005-04-12 03:21:43.262559992 -0700
+++ 25-akpm/drivers/infiniband/hw/mthca/mthca_provider.c	2005-04-12 03:21:43.265559536 -0700
@@ -494,7 +494,7 @@ static struct ib_mr *mthca_reg_phys_mr(s
 	mask = 0;
 	total_size = 0;
 	for (i = 0; i < num_phys_buf; ++i) {
-		if (buffer_list[i].addr & ~PAGE_MASK)
+		if (i != 0 && buffer_list[i].addr & ~PAGE_MASK)
 			return ERR_PTR(-EINVAL);
 		if (i != 0 && i != num_phys_buf - 1 &&
 		    (buffer_list[i].size & ~PAGE_MASK))
_
-
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