Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cf78237d7b0e683d172e40b1e85b26ca49a3cdba
Commit: cf78237d7b0e683d172e40b1e85b26ca49a3cdba
Parent: 5b0bf5e25efea77103b0ac7c8057cd56c778ef41
Author: Roland Dreier <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 9 19:59:16 2007 -0700
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Oct 9 19:59:16 2007 -0700
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 <[EMAIL PROTECTED]>
---
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 5b87183..60a6ee2 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;
-
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