linux-kernel - Re: [PATCH v3] dynamic_debug: add wildcard support to filter files/functions/modules

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Message-Id: <8F7F1A3C-949F-4718-9FD5-E35C1B78E1D9@holtmann.org>
Date:	Tue, 29 Oct 2013 21:21:28 +0100
From:	Marcel Holtmann <marcel@...tmann.org>
To:	"Du, Changbin" <changbin.du@...il.com>
Cc:	jbaron@...mai.com, Joe Perches <joe@...ches.com>,
	"linux-kernel@...r.kernel.org list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] dynamic_debug: add wildcard support to filter files/functions/modules

Hi Changbin,

> This patch add wildcard '*'(matches zero or more characters) and '?'
> (matches one character) support when qurying debug flags.
> 
> Now we can open debug messages using keywords. eg:
> 1. open debug logs in all usb drivers
>    echo "file drivers/usb/* +p" > <debugfs>/dynamic_debug/control
> 2.  open debug logs for usb xhci code
>    echo "file *xhci* +p" > <debugfs>/dynamic_debug/control

and this should have a section in Documentation/dynamic-debug-howto.txt.

Regards

Marcel

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