[git patch review 4/4] IB/mthca: create_eq with size not a power of 2

[Roland Dreier]

Fix mthca_create_eq for when the EQ size is not a power of 2.

Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxxxxxx>
Signed-off-by: Roland Dreier <rolandd@xxxxxxxxx>

---

 drivers/infiniband/hw/mthca/mthca_eq.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

466200562ccd80f728f7ef602d2b97b4fdedd566
diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c
index 34d68e5..e8a948f 100644
--- a/drivers/infiniband/hw/mthca/mthca_eq.c
+++ b/drivers/infiniband/hw/mthca/mthca_eq.c
@@ -484,8 +484,7 @@ static int __devinit mthca_create_eq(str
 				     u8 intr,
 				     struct mthca_eq *eq)
 {
-	int npages = (nent * MTHCA_EQ_ENTRY_SIZE + PAGE_SIZE - 1) /
-		PAGE_SIZE;
+	int npages;
 	u64 *dma_list = NULL;
 	dma_addr_t t;
 	struct mthca_mailbox *mailbox;
@@ -496,6 +495,7 @@ static int __devinit mthca_create_eq(str
 
 	eq->dev  = dev;
 	eq->nent = roundup_pow_of_two(max(nent, 2));
+ 	npages = ALIGN(eq->nent * MTHCA_EQ_ENTRY_SIZE, PAGE_SIZE) / PAGE_SIZE;
 
 	eq->page_list = kmalloc(npages * sizeof *eq->page_list,
 				GFP_KERNEL);
-- 
0.99.9n
-
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