linux-kernel - [PATCH] Bluetooth: btrtl: fix rtl_dump.fw

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Message-ID: <20250814025552.10627-1-liujiajia@kylinos.cn>
Date: Thu, 14 Aug 2025 10:55:51 +0800
From: Jiajia Liu <liujiajia@...inos.cn>
To: Marcel Holtmann <marcel@...tmann.org>,
	Luiz Augusto von Dentz <luiz.dentz@...il.com>
Cc: linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jiajia Liu <liujiajia@...inos.cn>
Subject: [PATCH] Bluetooth: btrtl: fix rtl_dump.fw_version for firmware v2

rtl_dump.fw_version is not set for firmware v2. Since
rtl_epatch_header_v2.fw_version seems to be different with the
release version, set it to the fw version read after downloading
firmware.

Signed-off-by: Jiajia Liu <liujiajia@...inos.cn>
---
 drivers/bluetooth/btrtl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 6abd962502e3..6ad3ba7901e9 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -822,6 +822,7 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 	int j = 0;
 	struct sk_buff *skb;
 	struct hci_rp_read_local_version *rp;
+	struct btrealtek_data *coredump_info = hci_get_priv(hdev);
 
 	dl_cmd = kmalloc(sizeof(*dl_cmd), GFP_KERNEL);
 	if (!dl_cmd)
@@ -873,6 +874,9 @@ static int rtl_download_firmware(struct hci_dev *hdev,
 	rp = (struct hci_rp_read_local_version *)skb->data;
 	rtl_dev_info(hdev, "fw version 0x%04x%04x",
 		     __le16_to_cpu(rp->hci_rev), __le16_to_cpu(rp->lmp_subver));
+	if (coredump_info->rtl_dump.fw_version == 0)
+		coredump_info->rtl_dump.fw_version =
+			__le16_to_cpu(rp->hci_rev) << 16 | __le16_to_cpu(rp->lmp_subver);
 	kfree_skb(skb);
 
 out:
-- 
2.50.1