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Message-ID: <Pine.LNX.4.64.0706081402510.7805@localhost.localdomain>
Date: Fri, 8 Jun 2007 14:05:22 -0400 (EDT)
From: "Robert P. J. Day" <rpjday@...dspring.com>
To: Chuck Ebbert <cebbert@...hat.com>
cc: USB development list <linux-usb-devel@...ts.sourceforge.net>,
linux-kernel <linux-kernel@...r.kernel.org>,
Greg KH <greg@...ah.com>
Subject: Re: blank filenames in /sys/modules, kernel 2.6.21
On Fri, 8 Jun 2007, Chuck Ebbert wrote:
> We just found a file with this name in 2.6.21:
>
> Directory name: /sys/module/nousb/parameters
> File name: ""
>
> IOW the file has an empty name. Is this intentional?
> It sure confuses updatedb...
>
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242715
that appears to be the result of:
$ grep -r __module_param_call *
drivers/usb/core/usb.c:__module_param_call("", nousb, param_set_bool, param_get_bool, &nousb, 0444);
include/linux/moduleparam.h:#define __module_param_call(prefix, name, set, get, arg, perm) \
include/linux/moduleparam.h: __module_param_call(MODULE_PARAM_PREFIX, name, set, get, arg, perm)
and from drivers/usb/core/usb.c:
/* format to disable USB on kernel command line is: nousb */
__module_param_call("", nousb, param_set_bool, param_get_bool, &nousb, 0444);
one has to wonder about the value of a macro that is invoked only
once throughout the entire tree.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA
http://fsdev.net/wiki/index.php?title=Main_Page
========================================================================
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