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qcacld-3.0: only unmap the mapped nbuf in the ol_txrx_vdev_flush

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The TX buffers in the vdev->ll_pause pending queue, which haven't mapped
the physical address.

Adding nbuf physical address checking to avoid the mis-matching unmap
especially when the MEMORY_DEBUG is enabled.

Change-Id: I6b0fcd1c7d07ca358d07b9931dea321ee8c6169a
CRs-Fixed: 2183678
This commit is contained in:
Tiger Yu 2018-02-06 14:45:57 +08:00 • committed by snandini
commit 2da63e421a
1 changed files with 6 additions and 4 deletions
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10
core/dp/txrx/ol_tx_queue.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2012-2017 The Linux Foundation. All rights reserved.
* Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
*
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
*
@ -1794,9 +1794,11 @@ void ol_txrx_vdev_flush(struct cdp_vdev *pvdev)
qdf_nbuf_t next =
qdf_nbuf_next(vdev->ll_pause.txq.head);
qdf_nbuf_set_next(vdev->ll_pause.txq.head, NULL);
qdf_nbuf_unmap(vdev->pdev->osdev,
vdev->ll_pause.txq.head,
QDF_DMA_TO_DEVICE);
if (QDF_NBUF_CB_PADDR(vdev->ll_pause.txq.head)) {
qdf_nbuf_unmap(vdev->pdev->osdev,
vdev->ll_pause.txq.head,
QDF_DMA_TO_DEVICE);
}
qdf_nbuf_tx_free(vdev->ll_pause.txq.head,
QDF_NBUF_PKT_ERROR);
vdev->ll_pause.txq.head = next;