[15/15] Bluetooth: hci_event: Use of a function table to handle Command Status

Message ID	20211201000215.1134831-16-luiz.dentz@gmail.com (mailing list archive)
State	Changes Requested
Delegated to:	Netdev Maintainers
Headers	show Return-Path: <netdev-owner@kernel.org> From: Luiz Augusto von Dentz <luiz.dentz@gmail.com> To: davem@davemloft.net, kuba@kernel.org Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, dan.carpenter@oracle.com, Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Subject: [PATCH 15/15] Bluetooth: hci_event: Use of a function table to handle Command Status Date: Tue, 30 Nov 2021 16:02:15 -0800 Message-Id: <20211201000215.1134831-16-luiz.dentz@gmail.com> In-Reply-To: <20211201000215.1134831-1-luiz.dentz@gmail.com> References: <20211201000215.1134831-1-luiz.dentz@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	Rework parsing of HCI events \| expand [00/15] Rework parsing of HCI events [01/15] skbuff: introduce skb_pull_data [02/15] Bluetooth: HCI: Use skb_pull_data to parse BR/EDR events [03/15] Bluetooth: HCI: Use skb_pull_data to parse Command Complete event [04/15] Bluetooth: HCI: Use skb_pull_data to parse Number of Complete Packets event [05/15] Bluetooth: HCI: Use skb_pull_data to parse Inquiry Result event [06/15] Bluetooth: HCI: Use skb_pull_data to parse Inquiry Result with RSSI event [07/15] Bluetooth: HCI: Use skb_pull_data to parse Extended Inquiry Result event [08/15] Bluetooth: HCI: Use skb_pull_data to parse LE Metaevents [09/15] Bluetooth: HCI: Use skb_pull_data to parse LE Advertising Report event [10/15] Bluetooth: HCI: Use skb_pull_data to parse LE Ext Advertising Report event [11/15] Bluetooth: HCI: Use skb_pull_data to parse LE Direct Advertising Report event [12/15] Bluetooth: hci_event: Use of a function table to handle HCI events [13/15] Bluetooth: hci_event: Use of a function table to handle LE subevents [14/15] Bluetooth: hci_event: Use of a function table to handle Command Complete [15/15] Bluetooth: hci_event: Use of a function table to handle Command Status

Context	Check	Description
netdev/tree_selection	success	Guessing tree name failed - patch did not apply

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 0b69d527ca4e..3f485d181eb6 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2195,7 +2195,7 @@ static u8 hci_cc_write_ssp_debug_mode(struct hci_dev *hdev, void *data, static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status) { - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (status) { hci_conn_check_pending(hdev); @@ -2210,7 +2210,7 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) struct hci_cp_create_conn *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); cp = hci_sent_cmd_data(hdev, HCI_OP_CREATE_CONN); if (!cp) @@ -2220,7 +2220,7 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); - BT_DBG("%s bdaddr %pMR hcon %p", hdev->name, &cp->bdaddr, conn); + bt_dev_dbg(hdev, "bdaddr %pMR hcon %p", &cp->bdaddr, conn); if (status) { if (conn && conn->state == BT_CONNECT) { @@ -2249,7 +2249,7 @@ static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) struct hci_conn *acl, *sco; __u16 handle; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2260,7 +2260,7 @@ static void hci_cs_add_sco(struct hci_dev *hdev, __u8 status) handle = __le16_to_cpu(cp->handle); - BT_DBG("%s handle 0x%4.4x", hdev->name, handle); + bt_dev_dbg(hdev, "handle 0x%4.4x", handle); hci_dev_lock(hdev); @@ -2283,7 +2283,7 @@ static void hci_cs_auth_requested(struct hci_dev *hdev, __u8 status) struct hci_cp_auth_requested *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2310,7 +2310,7 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status) struct hci_cp_set_conn_encrypt *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2446,7 +2446,7 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) struct hci_cp_remote_name_req *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); /* If successful wait for the name req complete event before * checking for the need to do authentication */ @@ -2489,7 +2489,7 @@ static void hci_cs_read_remote_features(struct hci_dev *hdev, __u8 status) struct hci_cp_read_remote_features *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2516,7 +2516,7 @@ static void hci_cs_read_remote_ext_features(struct hci_dev *hdev, __u8 status) struct hci_cp_read_remote_ext_features *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2544,7 +2544,7 @@ static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status) struct hci_conn *acl, *sco; __u16 handle; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2555,7 +2555,7 @@ static void hci_cs_setup_sync_conn(struct hci_dev *hdev, __u8 status) handle = __le16_to_cpu(cp->handle); - BT_DBG("%s handle 0x%4.4x", hdev->name, handle); + bt_dev_dbg(hdev, "handle 0x%4.4x", handle); hci_dev_lock(hdev); @@ -2613,7 +2613,7 @@ static void hci_cs_sniff_mode(struct hci_dev *hdev, __u8 status) struct hci_cp_sniff_mode *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2640,7 +2640,7 @@ static void hci_cs_exit_sniff_mode(struct hci_dev *hdev, __u8 status) struct hci_cp_exit_sniff_mode *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2669,6 +2669,8 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) struct hci_conn *conn; bool mgmt_conn; + bt_dev_dbg(hdev, "status 0x%2.2x", status); + /* Wait for HCI_EV_DISCONN_COMPLETE if status 0x00 and not suspended * otherwise cleanup the connection immediately. */ @@ -2802,7 +2804,7 @@ static void hci_cs_le_create_conn(struct hci_dev *hdev, u8 status) { struct hci_cp_le_create_conn *cp; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); /* All connection failure handling is taken care of by the * hci_le_conn_failed function which is triggered by the HCI @@ -2827,7 +2829,7 @@ static void hci_cs_le_ext_create_conn(struct hci_dev *hdev, u8 status) { struct hci_cp_le_ext_create_conn *cp; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); /* All connection failure handling is taken care of by the * hci_le_conn_failed function which is triggered by the HCI @@ -2853,7 +2855,7 @@ static void hci_cs_le_read_remote_features(struct hci_dev *hdev, u8 status) struct hci_cp_le_read_remote_features *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -2880,7 +2882,7 @@ static void hci_cs_le_start_enc(struct hci_dev *hdev, u8 status) struct hci_cp_le_start_enc *cp; struct hci_conn *conn; - BT_DBG("%s status 0x%2.2x", hdev->name, status); + bt_dev_dbg(hdev, "status 0x%2.2x", status); if (!status) return; @@ -3948,92 +3950,56 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, void *data, queue_work(hdev->workqueue, &hdev->cmd_work); } +#define HCI_CS(_op, _func) \ +{ \ + .op = _op, \ + .func = _func, \ +} + +static const struct hci_cs { + u16 op; + void (*func)(struct hci_dev *hdev, __u8 status); +} hci_cs_table[] = { + HCI_CS(HCI_OP_INQUIRY, hci_cs_inquiry), + HCI_CS(HCI_OP_CREATE_CONN, hci_cs_create_conn), + HCI_CS(HCI_OP_DISCONNECT, hci_cs_disconnect), + HCI_CS(HCI_OP_ADD_SCO, hci_cs_add_sco), + HCI_CS(HCI_OP_AUTH_REQUESTED, hci_cs_auth_requested), + HCI_CS(HCI_OP_SET_CONN_ENCRYPT, hci_cs_set_conn_encrypt), + HCI_CS(HCI_OP_REMOTE_NAME_REQ, hci_cs_remote_name_req), + HCI_CS(HCI_OP_READ_REMOTE_FEATURES, hci_cs_read_remote_features), + HCI_CS(HCI_OP_READ_REMOTE_EXT_FEATURES, + hci_cs_read_remote_ext_features), + HCI_CS(HCI_OP_SETUP_SYNC_CONN, hci_cs_setup_sync_conn), + HCI_CS(HCI_OP_ENHANCED_SETUP_SYNC_CONN, + hci_cs_enhanced_setup_sync_conn), + HCI_CS(HCI_OP_SNIFF_MODE, hci_cs_sniff_mode), + HCI_CS(HCI_OP_EXIT_SNIFF_MODE, hci_cs_exit_sniff_mode), + HCI_CS(HCI_OP_SWITCH_ROLE, hci_cs_switch_role), + HCI_CS(HCI_OP_LE_CREATE_CONN, hci_cs_le_create_conn), + HCI_CS(HCI_OP_LE_READ_REMOTE_FEATURES, hci_cs_le_read_remote_features), + HCI_CS(HCI_OP_LE_START_ENC, hci_cs_le_start_enc), + HCI_CS(HCI_OP_LE_EXT_CREATE_CONN, hci_cs_le_ext_create_conn) +}; + static void hci_cmd_status_evt(struct hci_dev *hdev, void *data, struct sk_buff *skb, u16 *opcode, u8 *status, hci_req_complete_t *req_complete, hci_req_complete_skb_t *req_complete_skb) { struct hci_ev_cmd_status *ev = data; + int i; *opcode = __le16_to_cpu(ev->opcode); *status = ev->status; - switch (*opcode) { - case HCI_OP_INQUIRY: - hci_cs_inquiry(hdev, ev->status); - break; - - case HCI_OP_CREATE_CONN: - hci_cs_create_conn(hdev, ev->status); - break; - - case HCI_OP_DISCONNECT: - hci_cs_disconnect(hdev, ev->status); - break; - - case HCI_OP_ADD_SCO: - hci_cs_add_sco(hdev, ev->status); - break; - - case HCI_OP_AUTH_REQUESTED: - hci_cs_auth_requested(hdev, ev->status); - break; - - case HCI_OP_SET_CONN_ENCRYPT: - hci_cs_set_conn_encrypt(hdev, ev->status); - break; - - case HCI_OP_REMOTE_NAME_REQ: - hci_cs_remote_name_req(hdev, ev->status); - break; - - case HCI_OP_READ_REMOTE_FEATURES: - hci_cs_read_remote_features(hdev, ev->status); - break; - - case HCI_OP_READ_REMOTE_EXT_FEATURES: - hci_cs_read_remote_ext_features(hdev, ev->status); - break; - - case HCI_OP_SETUP_SYNC_CONN: - hci_cs_setup_sync_conn(hdev, ev->status); - break; - - case HCI_OP_ENHANCED_SETUP_SYNC_CONN: - hci_cs_enhanced_setup_sync_conn(hdev, ev->status); - break; - - case HCI_OP_SNIFF_MODE: - hci_cs_sniff_mode(hdev, ev->status); - break; - - case HCI_OP_EXIT_SNIFF_MODE: - hci_cs_exit_sniff_mode(hdev, ev->status); - break; - - case HCI_OP_SWITCH_ROLE: - hci_cs_switch_role(hdev, ev->status); - break; - - case HCI_OP_LE_CREATE_CONN: - hci_cs_le_create_conn(hdev, ev->status); - break; - - case HCI_OP_LE_READ_REMOTE_FEATURES: - hci_cs_le_read_remote_features(hdev, ev->status); - break; - - case HCI_OP_LE_START_ENC: - hci_cs_le_start_enc(hdev, ev->status); - break; - - case HCI_OP_LE_EXT_CREATE_CONN: - hci_cs_le_ext_create_conn(hdev, ev->status); - break; + bt_dev_dbg(hdev, "opcode 0x%4.4x", *opcode); - default: - BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode); - break; + for (i = 0; i < ARRAY_SIZE(hci_cs_table); i++) { + if (hci_cs_table[i].op == *opcode) { + hci_cs_table[i].func(hdev, ev->status); + break; + } } handle_cmd_cnt_and_timer(hdev, ev->ncmd);

[15/15] Bluetooth: hci_event: Use of a function table to handle Command Status

Checks

Commit Message

Patch