linux-kernel - Re: [PATCH 0/3] usb: gadget: Add a prefix to log messages

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Message-ID: <2026012339-landmine-risk-5c9c@gregkh>
Date: Fri, 23 Jan 2026 15:52:11 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Jisheng Zhang <jszhang@...nel.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] usb: gadget: Add a prefix to log messages

On Fri, Jan 23, 2026 at 10:22:18PM +0800, Jisheng Zhang wrote:
> 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 be look as below:
> 
> [  581.262476] usb_f_fs: read descriptors
> [  581.265558] usb_f_fs: bcdVersion must be 0x0100, stored in Little Endian order...
> 
> Then solve similar issues for f_mass_storage and f_tcm.

These should all be using the dev_info() and like calls, not pr_*(), and
if that happens, then you will get the correct prefix.  Can you make
that change instead?

thanks,

greg k-h