diff options
| author | Roland Dreier <rolandd@cisco.com> | 2007-10-09 19:59:16 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-10-09 19:59:16 -0700 |
| commit | cf78237d7b0e683d172e40b1e85b26ca49a3cdba (patch) | |
| tree | 37ab3ac0744ef2a699649e8949260301dc570f51 /drivers/net/mlx4 | |
| parent | 5b0bf5e25efea77103b0ac7c8057cd56c778ef41 (diff) | |
| download | lwn-cf78237d7b0e683d172e40b1e85b26ca49a3cdba.tar.gz lwn-cf78237d7b0e683d172e40b1e85b26ca49a3cdba.zip | |
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')
| -rw-r--r-- | drivers/net/mlx4/mr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c index 5b87183e62ce..60a6ee27cfd4 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; |