redonkable/alistair23-linux
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mlx4_core: fix mtt range deallocation

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The mtt range was allocated in mtt units but deallocated
in segments. Among the rest, this caused crash during hotplug removal

Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Marcel Apfelbaum <marcela@mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marcel Apfelbaum 2012-01-02 04:07:39 +00:00 committed by David S. Miller
parent f7d9821a6a
commit 1e27ca6944
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/mellanox/mlx4/mr.c
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@ -239,8 +239,8 @@ void __mlx4_free_mtt_range(struct mlx4_dev *dev, u32 offset, int order)
first_seg = offset / (1 << log_mtts_per_seg);
mlx4_buddy_free(&mr_table->mtt_buddy, first_seg, seg_order);
mlx4_table_put_range(dev, &mr_table->mtt_table, first_seg,
first_seg + (1 << seg_order) - 1);
mlx4_table_put_range(dev, &mr_table->mtt_table, offset,
offset + (1 << order) - 1);
}
static void mlx4_free_mtt_range(struct mlx4_dev *dev, u32 offset, int order)