From: Manish Mandlik <mmandlik@google.com>
Date: Thu, 30 Mar 2023 16:58:25 +0000 (-0700)
Subject: Bluetooth: btusb: Add btusb devcoredump support
X-Git-Tag: v6.6.7~2736^2~57^2~32
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4f9c1a089623ac606e79a7886646939e0e2f89bf;p=platform%2Fkernel%2Flinux-starfive.git

Bluetooth: btusb: Add btusb devcoredump support

This patch implements the btusb driver side .coredump() callback to
trigger a devcoredump via sysfs.

Signed-off-by: Manish Mandlik <mmandlik@google.com>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 9bf1d4e..498e131 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -4397,6 +4397,17 @@ done:
 }
 #endif
 
+#ifdef CONFIG_DEV_COREDUMP
+static void btusb_coredump(struct device *dev)
+{
+	struct btusb_data *data = dev_get_drvdata(dev);
+	struct hci_dev *hdev = data->hdev;
+
+	if (hdev->dump.coredump)
+		hdev->dump.coredump(hdev);
+}
+#endif
+
 static struct usb_driver btusb_driver = {
 	.name		= "btusb",
 	.probe		= btusb_probe,
@@ -4408,6 +4419,14 @@ static struct usb_driver btusb_driver = {
 	.id_table	= btusb_table,
 	.supports_autosuspend = 1,
 	.disable_hub_initiated_lpm = 1,
+
+#ifdef CONFIG_DEV_COREDUMP
+	.drvwrap = {
+		.driver = {
+			.coredump = btusb_coredump,
+		},
+	},
+#endif
 };
 
 module_usb_driver(btusb_driver);