qcacld-3.0: reduce stack size during ipa_setup

Reduce stack size by allocating pipe_in memory
dynamically during ipa_setup.

Change-Id: I33692b5a5dd920a2784fab4294af84d827cb092b
CRs-Fixed: 2638947

core/dp/txrx/ol_txrx_ipa.c

@@ -584,7 +584,7 @@ QDF_STATUS ol_txrx_ipa_setup(struct cdp_soc_t *soc_hdl, uint8_t pdev_id,
 	qdf_ipa_wdi_pipe_setup_info_t *rx;
 	qdf_ipa_wdi_pipe_setup_info_smmu_t *tx_smmu;
 	qdf_ipa_wdi_pipe_setup_info_smmu_t *rx_smmu;
-	qdf_ipa_wdi_conn_in_params_t pipe_in;
+	qdf_ipa_wdi_conn_in_params_t *pipe_in = NULL;
 	qdf_ipa_wdi_conn_out_params_t pipe_out;
 	qdf_device_t osdev = cds_get_context(QDF_MODULE_ID_QDF_DEVICE);
 	uint32_t tx_comp_db_dmaaddr = 0, rx_rdy_db_dmaaddr = 0;
@@ -601,20 +601,26 @@ QDF_STATUS ol_txrx_ipa_setup(struct cdp_soc_t *soc_hdl, uint8_t pdev_id,
 		return QDF_STATUS_E_NOENT;
 	}
 
+	pipe_in = qdf_mem_malloc(sizeof(*pipe_in));
+	if (!pipe_in) {
+		ol_txrx_err("pipe_in allocation failed");
+		return QDF_STATUS_E_NOMEM;
+	}
+
 	ipa_res = &pdev->ipa_resource;
-	qdf_mem_zero(&pipe_in, sizeof(pipe_in));
+	qdf_mem_zero(pipe_in, sizeof(*pipe_in));
 	qdf_mem_zero(&pipe_out, sizeof(pipe_out));
 
-	ol_txrx_setup_mcc_sys_pipes(sys_in, &pipe_in);
+	ol_txrx_setup_mcc_sys_pipes(sys_in, pipe_in);
 
 	/* TX PIPE */
 	if (is_smmu_enabled) {
-		QDF_IPA_WDI_CONN_IN_PARAMS_SMMU_ENABLED(&pipe_in) = true;
-		tx_smmu = &QDF_IPA_WDI_CONN_IN_PARAMS_TX_SMMU(&pipe_in);
+		QDF_IPA_WDI_CONN_IN_PARAMS_SMMU_ENABLED(pipe_in) = true;
+		tx_smmu = &QDF_IPA_WDI_CONN_IN_PARAMS_TX_SMMU(pipe_in);
 		tx_cfg = &QDF_IPA_WDI_SETUP_INFO_SMMU_EP_CFG(tx_smmu);
 	} else {
-		QDF_IPA_WDI_CONN_IN_PARAMS_SMMU_ENABLED(&pipe_in) = false;
-		tx = &QDF_IPA_WDI_CONN_IN_PARAMS_TX(&pipe_in);
+		QDF_IPA_WDI_CONN_IN_PARAMS_SMMU_ENABLED(pipe_in) = false;
+		tx = &QDF_IPA_WDI_CONN_IN_PARAMS_TX(pipe_in);
 		tx_cfg = &QDF_IPA_WDI_SETUP_INFO_EP_CFG(tx);
 	}
 
@@ -635,10 +641,10 @@ QDF_STATUS ol_txrx_ipa_setup(struct cdp_soc_t *soc_hdl, uint8_t pdev_id,
 
 	/* RX PIPE */
 	if (is_smmu_enabled) {
-		rx_smmu = &QDF_IPA_WDI_CONN_IN_PARAMS_RX_SMMU(&pipe_in);
+		rx_smmu = &QDF_IPA_WDI_CONN_IN_PARAMS_RX_SMMU(pipe_in);
 		rx_cfg = &QDF_IPA_WDI_SETUP_INFO_EP_CFG(rx_smmu);
 	} else {
-		rx = &QDF_IPA_WDI_CONN_IN_PARAMS_RX(&pipe_in);
+		rx = &QDF_IPA_WDI_CONN_IN_PARAMS_RX(pipe_in);
 		rx_cfg = &QDF_IPA_WDI_SETUP_INFO_EP_CFG(rx);
 	}
 
@@ -658,15 +664,16 @@ QDF_STATUS ol_txrx_ipa_setup(struct cdp_soc_t *soc_hdl, uint8_t pdev_id,
 	else
 		ol_txrx_ipa_wdi_rx_params(ipa_res, rx, over_gsi);
 
-	QDF_IPA_WDI_CONN_IN_PARAMS_NOTIFY(&pipe_in) = ipa_w2i_cb;
-	QDF_IPA_WDI_CONN_IN_PARAMS_PRIV(&pipe_in) = ipa_priv;
+	QDF_IPA_WDI_CONN_IN_PARAMS_NOTIFY(pipe_in) = ipa_w2i_cb;
+	QDF_IPA_WDI_CONN_IN_PARAMS_PRIV(pipe_in) = ipa_priv;
 
 	/* Connect WDI IPA PIPE */
-	ret = qdf_ipa_wdi_conn_pipes(&pipe_in, &pipe_out);
+	ret = qdf_ipa_wdi_conn_pipes(pipe_in, &pipe_out);
 	if (ret) {
 		QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR,
 			  "%s: ipa_wdi_conn_pipes: IPA pipe setup failed: ret=%d",
 			  __func__, ret);
+		qdf_mem_free(pipe_in);
 		return QDF_STATUS_E_FAILURE;
 	}
 
@@ -693,6 +700,7 @@ QDF_STATUS ol_txrx_ipa_setup(struct cdp_soc_t *soc_hdl, uint8_t pdev_id,
 		ipa_res->rx_ready_doorbell_dmaaddr = rx_rdy_db_dmaaddr;
 	}
 
+	qdf_mem_free(pipe_in);
 	return QDF_STATUS_SUCCESS;
 }