linux-kernel - [PATCH 1/3] usb: gadget: f_fs: Add a prefix to log messages

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Message-ID: <20260123142221.14285-2-jszhang@kernel.org>
Date: Fri, 23 Jan 2026 22:22:19 +0800
From: Jisheng Zhang <jszhang@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] usb: gadget: f_fs: Add a prefix to log messages

I met some log as below:
[  581.262476] read descriptors
[  581.265558] bcdVersion must be 0x0100, stored in Little Endian order...

To be honest, if I'm not familiar with the usb gadget framework, I dunno
which component is complaining. Add a prefix to log messages, so the
above messages will look like:

[  581.262476] usb_f_fs: read descriptors
[  581.265558] usb_f_fs: bcdVersion must be 0x0100, stored in Little Endian order...

Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
---
 drivers/usb/gadget/function/f_fs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 05c6750702b6..97c7f0052327 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -14,6 +14,8 @@
 /* #define DEBUG */
 /* #define VERBOSE_DEBUG */

+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/blkdev.h>
 #include <linux/dma-buf.h>
 #include <linux/dma-fence.h>
-- 
2.51.0