[MLX4] fixed a PREFast warning

git-svn-id: svn://openib.tc.cornell.edu/gen1/trunk@1225 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86

diff --git a/hw/mlx4/kernel/bus/net/fw.c b/hw/mlx4/kernel/bus/net/fw.c
index 1596c03..b0f01d9 100644 (file)
--- a/hw/mlx4/kernel/bus/net/fw.c
+++ b/hw/mlx4/kernel/bus/net/fw.c
@@ -648,6 +648,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
        struct mlx4_cmd_mailbox *mailbox;
        __be32 *inbox;
        int err;
+       u8 uar_page_sz = PAGE_SHIFT - 12;
 
 #define INIT_HCA_IN_SIZE                0x200
 #define INIT_HCA_VERSION_OFFSET                 0x000
@@ -739,7 +740,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 
        /* UAR attributes */
 
-       MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
+       MLX4_PUT(inbox, uar_page_sz, INIT_HCA_UAR_PAGE_SZ_OFFSET);
        MLX4_PUT(inbox, param->log_uar_sz,      INIT_HCA_LOG_UAR_SZ_OFFSET);
 
        err = mlx4_cmd(dev, mailbox->dma.da, 0, 0, MLX4_CMD_INIT_HCA, 10000);