Bluetooth: Get rid of cmd_timeout and use the reset callback

The hdev->reset is never used now and the hdev->cmd_timeout actually
does reset. This patch changes the call path from
  hdev->cmd_timeout -> vendor_cmd_timeout -> btusb_reset -> hdev->reset
, to
  hdev->reset -> vendor_reset -> btusb_reset
Which makes it clear when we export the hdev->reset to a wider usage
e.g. allowing reset from sysfs.

This patch doesn't introduce any behavior change.

Signed-off-by: Hsin-chen Chuang <chharry@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index a1dfcfe43d3aad5269210dac8de7799dd6629341..bd5464bde174fa8ca2d4e38ec9bad5e0d8b49d5b 100644 (file)
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -1249,7 +1249,7 @@ static int btmtksdio_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
        return 0;
 }
 
-static void btmtksdio_cmd_timeout(struct hci_dev *hdev)
+static void btmtksdio_reset(struct hci_dev *hdev)
 {
        struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
        u32 status;
@@ -1360,7 +1360,7 @@ static int btmtksdio_probe(struct sdio_func *func,
 
        hdev->open     = btmtksdio_open;
        hdev->close    = btmtksdio_close;
-       hdev->cmd_timeout = btmtksdio_cmd_timeout;
+       hdev->reset    = btmtksdio_reset;
        hdev->flush    = btmtksdio_flush;
        hdev->setup    = btmtksdio_setup;
        hdev->shutdown = btmtksdio_shutdown;

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 9f267b70f6ab4ef20565df5836132d446dc5a986..9aa018d4f6f502da4feb6f14558dc52b7e5ccaec 100644 (file)
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -916,7 +916,7 @@ static void btusb_reset(struct hci_dev *hdev)
        usb_queue_reset_device(data->intf);
 }
 
-static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
+static void btusb_intel_reset(struct hci_dev *hdev)
 {
        struct btusb_data *data = hci_get_drvdata(hdev);
        struct gpio_desc *reset_gpio = data->reset_gpio;
@@ -994,7 +994,7 @@ static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
        }
 }
 
-static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
+static void btusb_rtl_reset(struct hci_dev *hdev)
 {
        struct btusb_data *data = hci_get_drvdata(hdev);
        struct gpio_desc *reset_gpio = data->reset_gpio;
@@ -1038,13 +1038,13 @@ static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
        btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 }
 
-static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
+static void btusb_qca_reset(struct hci_dev *hdev)
 {
        struct btusb_data *data = hci_get_drvdata(hdev);
        struct gpio_desc *reset_gpio = data->reset_gpio;
 
        if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
-               bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
+               bt_dev_info(hdev, "Ramdump in progress, defer reset");
                return;
        }
 
@@ -3868,7 +3868,7 @@ static int btusb_probe(struct usb_interface *intf,
 
                /* Transport specific configuration */
                hdev->send = btusb_send_frame_intel;
-               hdev->cmd_timeout = btusb_intel_cmd_timeout;
+               hdev->reset = btusb_intel_reset;
 
                if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
                        btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
@@ -3888,7 +3888,7 @@ static int btusb_probe(struct usb_interface *intf,
                hdev->setup = btusb_mtk_setup;
                hdev->shutdown = btusb_mtk_shutdown;
                hdev->manufacturer = 70;
-               hdev->cmd_timeout = btmtk_reset_sync;
+               hdev->reset = btmtk_reset_sync;
                hdev->set_bdaddr = btmtk_set_bdaddr;
                hdev->send = btusb_send_frame_mtk;
                set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
@@ -3920,7 +3920,7 @@ static int btusb_probe(struct usb_interface *intf,
                data->setup_on_usb = btusb_setup_qca;
                hdev->shutdown = btusb_shutdown_qca;
                hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
-               hdev->cmd_timeout = btusb_qca_cmd_timeout;
+               hdev->reset = btusb_qca_reset;
                set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
                btusb_check_needs_reset_resume(intf);
        }
@@ -3934,7 +3934,7 @@ static int btusb_probe(struct usb_interface *intf,
                data->setup_on_usb = btusb_setup_qca;
                hdev->shutdown = btusb_shutdown_qca;
                hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
-               hdev->cmd_timeout = btusb_qca_cmd_timeout;
+               hdev->reset = btusb_qca_reset;
                set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
                hci_set_msft_opcode(hdev, 0xFD70);
        }
@@ -3953,7 +3953,7 @@ static int btusb_probe(struct usb_interface *intf,
                btrtl_set_driver_name(hdev, btusb_driver.name);
                hdev->setup = btusb_setup_realtek;
                hdev->shutdown = btrtl_shutdown_realtek;
-               hdev->cmd_timeout = btusb_rtl_cmd_timeout;
+               hdev->reset = btusb_rtl_reset;
                hdev->hw_error = btusb_rtl_hw_error;
 
                /* Realtek devices need to set remote wakeup on auto-suspend */

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 0cfe40393600d50c0e49dbcff102ff31b9f9461a..0ac2168f1dc4f8ae2f7a3b2912e7f5b5b8115cac 100644 (file)
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1650,7 +1650,7 @@ static void qca_hw_error(struct hci_dev *hdev, u8 code)
        clear_bit(QCA_HW_ERROR_EVENT, &qca->flags);
 }
 
-static void qca_cmd_timeout(struct hci_dev *hdev)
+static void qca_reset(struct hci_dev *hdev)
 {
        struct hci_uart *hu = hci_get_drvdata(hdev);
        struct qca_data *qca = hu->priv;
@@ -1981,7 +1981,7 @@ retry:
                clear_bit(QCA_IBS_DISABLED, &qca->flags);
                qca_debugfs_init(hdev);
                hu->hdev->hw_error = qca_hw_error;
-               hu->hdev->cmd_timeout = qca_cmd_timeout;
+               hu->hdev->reset = qca_reset;
                if (hu->serdev) {
                        if (device_can_wakeup(hu->serdev->ctrl->dev.parent))
                                hu->hdev->wakeup = qca_wakeup;
@@ -2215,7 +2215,7 @@ static int qca_power_off(struct hci_dev *hdev)
        enum qca_btsoc_type soc_type = qca_soc_type(hu);
 
        hu->hdev->hw_error = NULL;
-       hu->hdev->cmd_timeout = NULL;
+       hu->hdev->reset = NULL;
 
        del_timer_sync(&qca->wake_retrans_timer);
        del_timer_sync(&qca->tx_idle_timer);

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 84b522a10019218a64b40f2865580625fefde31f..f756fac95488af41f88bd6ba814ea8fa81adca26 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -633,7 +633,6 @@ struct hci_dev {
        int (*post_init)(struct hci_dev *hdev);
        int (*set_diag)(struct hci_dev *hdev, bool enable);
        int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
-       void (*cmd_timeout)(struct hci_dev *hdev);
        void (*reset)(struct hci_dev *hdev);
        bool (*wakeup)(struct hci_dev *hdev);
        int (*set_quality_report)(struct hci_dev *hdev, bool enable);

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ba955447b359ee8bd05061b77110c5b96aaf6b73..e7ec12437c8b1687e84c339b7b473918ca5ffa08 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1456,8 +1456,8 @@ static void hci_cmd_timeout(struct work_struct *work)
                bt_dev_err(hdev, "command tx timeout");
        }
 
-       if (hdev->cmd_timeout)
-               hdev->cmd_timeout(hdev);
+       if (hdev->reset)
+               hdev->reset(hdev);
 
        atomic_set(&hdev->cmd_cnt, 1);
        queue_work(hdev->workqueue, &hdev->cmd_work);