qcacld-3.0: Refine API wlan_sap_get_vht_ch_width()

See change "qcacld-3.0: Refine API wlansap_open()" for the API history.
Update wlan_sap_get_vht_ch_width() to use the true struct pointer type.

Change-Id: I1c717866721a6f2573df5bc7adbd0ddb6ea61cc3
CRs-Fixed: 2116267

core/sap/inc/sap_api.h

@@ -1056,7 +1056,16 @@ QDF_STATUS wlansap_set_dfs_target_chnl(tHalHandle hHal,
  */
 eCsrPhyMode wlan_sap_get_phymode(struct sap_context *sap_ctx);
 
-uint32_t wlan_sap_get_vht_ch_width(void *ctx);
+/**
+ * wlan_sap_get_vht_ch_width() - Returns SAP VHT channel width.
+ * @sap_ctx:	Pointer to Sap Context
+ *
+ * This function provides the SAP current VHT channel with.
+ *
+ * Return: VHT channel width
+ */
+uint32_t wlan_sap_get_vht_ch_width(struct sap_context *sap_ctx);
+
 void wlan_sap_set_vht_ch_width(void *ctx, uint32_t vht_channel_width);
 QDF_STATUS wlansap_update_sap_config_add_ie(tsap_Config_t *pConfig,
 		const uint8_t *

core/sap/src/sap_module.c

@@ -598,21 +598,11 @@ eCsrPhyMode wlan_sap_get_phymode(struct sap_context *sap_ctx)
 	return sap_ctx->csr_roamProfile.phyMode;
 }
 
-/**
- * wlan_sap_get_vht_ch_width() - Returns SAP VHT channel width.
- * @ctx:	Pointer to cds Context or Sap Context based on MBSSID
- *
- * This function provides the SAP current VHT channel with.
- *
- * Return: VHT channel width
- */
-uint32_t wlan_sap_get_vht_ch_width(void *ctx)
+uint32_t wlan_sap_get_vht_ch_width(struct sap_context *sap_ctx)
 {
-	struct sap_context *sap_ctx = CDS_GET_SAP_CB(ctx);
-
 	if (!sap_ctx) {
 		QDF_TRACE(QDF_MODULE_ID_SAP, QDF_TRACE_LEVEL_ERROR,
-			FL("Invalid SAP pointer from ctx"));
+			FL("Invalid SAP pointer"));
 		return 0;
 	}