Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mthca: Clear ICM pages before handing to FW

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index b224079d4e1f..d5862e5d99a0 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -109,7 +109,11 @@ static int mthca_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_m
 {
         struct page *page;
 
-        page = alloc_pages(gfp_mask, order);
+        /*
+         * Use __GFP_ZERO because buggy firmware assumes ICM pages are
+         * cleared, and subtle failures are seen if they aren't.
+         */
+        page = alloc_pages(gfp_mask | __GFP_ZERO, order);
         if (!page)
                 return -ENOMEM;