Commit 1e27ca69 authored Jan 02, 2012 by Marcel Apfelbaum Committed by David S. Miller Jan 03, 2012

mlx4_core: fix mtt range deallocation



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>

parent f7d9821a

drivers/net/ethernet/mellanox/mlx4/mr.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)

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