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authorRoland Dreier <rolandd@cisco.com>2007-10-09 19:59:16 -0700
committerRoland Dreier <rolandd@cisco.com>2007-10-09 19:59:16 -0700
commitcf78237d7b0e683d172e40b1e85b26ca49a3cdba (patch)
tree37ab3ac0744ef2a699649e8949260301dc570f51 /drivers/net/mlx4/mr.c
parent5b0bf5e25efea77103b0ac7c8057cd56c778ef41 (diff)
downloadlinux-linaro-android-cf78237d7b0e683d172e40b1e85b26ca49a3cdba.tar.gz
mlx4_core: Reserve the correct number of MTT segments
Taking ilog2(dev->caps.reserved_mtts) to find out the order to pass to the MTT buddy allocator will do the wrong thing if reserved_mtts is ever not a power of 2. Be safe and use fls(dev->caps.reserved_mtts - 1). Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/mr.c')
-rw-r--r--drivers/net/mlx4/mr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
index 5b87183e62c..60a6ee27cfd 100644
--- a/drivers/net/mlx4/mr.c
+++ b/drivers/net/mlx4/mr.c
@@ -444,7 +444,7 @@ int __devinit mlx4_init_mr_table(struct mlx4_dev *dev)
goto err_buddy;
if (dev->caps.reserved_mtts) {
- if (mlx4_alloc_mtt_range(dev, ilog2(dev->caps.reserved_mtts)) == -1) {
+ if (mlx4_alloc_mtt_range(dev, fls(dev->caps.reserved_mtts - 1)) == -1) {
mlx4_warn(dev, "MTT table of order %d is too small.\n",
mr_table->mtt_buddy.max_order);
err = -ENOMEM;