linux-kernel - Re: [PATCH v2 0/3] Add the DWC3 instance name in traces

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Message-ID: <2026010555-squealing-easily-7659@gregkh>
Date: Mon, 5 Jan 2026 13:44:29 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Prashanth K <prashanth.k@....qualcomm.com>
Cc: Thinh Nguyen <Thinh.Nguyen@...opsys.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Add the DWC3 instance name in traces

On Mon, Jan 05, 2026 at 05:23:22PM +0530, Prashanth K wrote:
> When multiple DWC3 controllers are being used, trace events from
> different instances get mixed up making debugging difficult as
> there's no way to distinguish which instance generated the trace.
> 
> Hence append the controller base address into ftrace. This needs
> the following reworks which is addressed using this patch series.
> 
>   1. Removal of dep->regs and use dwc->regs everywhere
>   2. Use dwc pointer in all dwc3_readl/writel()
>   3. Adding the base addr in traces.
> 
> Changes in v2:
> - Avoid using macros for dwc3_readl/writel()
> - Use base address intraces instead of dev name.

Wait, why change this?  The dev name is what you should care about.
"base address" doesn't make much sense as this is on a lot of different
busses, right?

thanks,

greg k-h