IB/mthca: create_eq with size not a power of 2

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

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c
index 34d68e5a72d8..e8a948f087c0 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(struct mthca_dev *dev,
                                      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(struct mthca_dev *dev,
 
         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);