From: Jack Morgenstein Date: Sun, 3 Nov 2013 08:03:22 +0000 (+0200) Subject: net/mlx4_core: Fix checking order in MR table init X-Git-Tag: v3.13-rc1~105^2~66^2~3 X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Flinux.git;a=commitdiff_plain;h=a30f1bc5c0254cee94bc22304e57fe030fcf68f5 net/mlx4_core: Fix checking order in MR table init In procedure mlx4_init_mr_table(), slaves should do no processing, but should return success. This initialization is hypervisor-only. However, the check for num_mpts being a power-of-2 was performed before the check to return immediately if the driver is for a slave. This resulted in spurious failures. The order of performing the checks is reversed, so that if the driver is for a slave, no processing is done and success is returned. Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c index f91719a08cba..63391a1a7f8c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mr.c +++ b/drivers/net/ethernet/mellanox/mlx4/mr.c @@ -755,14 +755,14 @@ int mlx4_init_mr_table(struct mlx4_dev *dev) struct mlx4_mr_table *mr_table = &priv->mr_table; int err; - if (!is_power_of_2(dev->caps.num_mpts)) - return -EINVAL; - /* Nothing to do for slaves - all MR handling is forwarded * to the master */ if (mlx4_is_slave(dev)) return 0; + if (!is_power_of_2(dev->caps.num_mpts)) + return -EINVAL; + err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts, ~0, dev->caps.reserved_mrws, 0); if (err)