Thread (5 messages) 5 messages, 2 authors, 2012-10-26

[PATCH net 1/3] net/mlx4_en: Fix double-release-range in tx-rings

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STALE5107d

From: Or Gerlitz <hidden>
Date: 2012-10-25 11:12:58
Subsystem: mellanox ethernet driver (mlx4_en), mellanox mlx4 core vpi driver, networking drivers, the rest · Maintainers: Tariq Toukan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Revision v1 of 2 in this series.

Revisions (2)
  1. v1 current
  2. v1
From: Jack Morgenstein <redacted>

The QP range is reserved as a single block. However, when freeing the
en resources, the tx-ring QPs are released both in mlx4_en_destroy_tx_ring
(one at a time) and in mlx4_en_free_resources (as a block release).

Fix by eliminating the one-at-a-time release in mlx4_en_destroy_tx_ring.

Signed-off-by: Jack Morgenstein <redacted>
Signed-off-by: Or Gerlitz <redacted>
---
 drivers/net/ethernet/mellanox/mlx4/en_tx.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index c10e3a6..0a51095 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -143,7 +143,6 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 		mlx4_bf_free(mdev->dev, &ring->bf);
 	mlx4_qp_remove(mdev->dev, &ring->qp);
 	mlx4_qp_free(mdev->dev, &ring->qp);
-	mlx4_qp_release_range(mdev->dev, ring->qpn, 1);
 	mlx4_en_unmap_buffer(&ring->wqres.buf);
 	mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
 	kfree(ring->bounce_buf);
-- 
1.7.1
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