linux-kernel - [PATCH] usb: storage: ignore bogus device raised by JieLi BR21 USB sound chip

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Message-ID: <20241001083407.8336-1-uwu@icenowy.me>
Date: Tue,  1 Oct 2024 16:34:07 +0800
From: Icenowy Zheng <uwu@...nowy.me>
To: Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org,
	usb-storage@...ts.one-eyed-alien.net,
	linux-kernel@...r.kernel.org,
	Icenowy Zheng <uwu@...nowy.me>
Subject: [PATCH] usb: storage: ignore bogus device raised by JieLi BR21 USB sound chip

JieLi tends to use SCSI via USB Mass Storage to implement their own
proprietary commands instead of implementing another USB interface.
Enumerating it as a generic mass storage device will lead to a Hardware
Error sense key get reported.

Ignore this bogus device to prevent appearing a unusable sdX device
file.

Signed-off-by: Icenowy Zheng <uwu@...nowy.me>
---
 drivers/usb/storage/unusual_devs.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index fd68204374f2c..e5ad23d86833d 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2423,6 +2423,17 @@ UNUSUAL_DEV(  0xc251, 0x4003, 0x0100, 0x0100,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NOT_LOCKABLE),
 
+/*
+ * Reported by Icenowy Zheng <uwu@...nowy.me>
+ * This is an interface for vendor-specific cryptic commands instead
+ * of real USB storage device.
+ */
+UNUSUAL_DEV(  0xe5b7, 0x0811, 0x0100, 0x0100,
+		"ZhuHai JieLi Technology",
+		"JieLi BR21",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_DEVICE),
+
 /* Reported by Andrew Simmons <andrew.simmons@...il.com> */
 UNUSUAL_DEV(  0xed06, 0x4500, 0x0001, 0x0001,
 		"DataStor",
-- 
2.46.2