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qcacmn: Propperly free ce recv buffers durring driver unload

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Ce recv buffers that were given to hardware and never returned
need to be freed.

Change-Id: I427ef993110e24dcbbc1891fe3eb456f688526ae
CRs-Fixed: 2000136
This commit is contained in:
Houston Hoffman 2017-01-30 14:21:46 -08:00 • committed by qcabuildsw
commit 72ddc02a93
1 changed files with 29 additions and 2 deletions
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31
hif/src/ce/ce_service_srng.c
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@ -414,9 +414,36 @@ ce_revoke_recv_next_srng(struct CE_handle *copyeng,
void **per_CE_contextp,
void **per_transfer_contextp, qdf_dma_addr_t *bufferp)
{
QDF_STATUS status = QDF_STATUS_E_FAILURE;
struct CE_state *CE_state = (struct CE_state *)copyeng;
struct CE_ring_state *dest_ring = CE_state->dest_ring;
unsigned int sw_index;
return status;
if (!dest_ring)
return QDF_STATUS_E_FAILURE;
sw_index = dest_ring->sw_index;
if (per_CE_contextp)
*per_CE_contextp = CE_state->recv_context;
/* NOTE: sw_index is more like a read_index in this context. It has a
* one-to-one mapping with status ring.
* Get the per trasnfer context from dest_ring.
*/
if (per_transfer_contextp)
*per_transfer_contextp =
dest_ring->per_transfer_context[sw_index];
if (dest_ring->per_transfer_context[sw_index] == NULL)
return QDF_STATUS_E_FAILURE;
/* provide end condition */
dest_ring->per_transfer_context[sw_index] = NULL;
/* Update sw_index */
sw_index = CE_RING_IDX_INCR(dest_ring->nentries_mask, sw_index);
dest_ring->sw_index = sw_index;
return QDF_STATUS_SUCCESS;
}
/*