linux-kernel - finding macro names that might need a "CONFIG

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Date:	Fri, 2 Feb 2007 04:22:51 -0500 (EST)
From:	"Robert P. J. Day" <rpjday@...dspring.com>
To:	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: finding macro names that might need a "CONFIG_" prefix


  as another test, i wrote the following script:

http://www.fsdev.dreamhosters.com/wiki/index.php?title=Misspelled_CONFIG_variables

that scans whatever part of the kernel source tree you want, and
locates macro names in preprocessor conditionals that might be
erroneously missing a "CONFIG_" prefix.

  as an example (and for no particular reason), let's pick on the
reiser file system:

$ bad_config.sh fs/reiserfs/
========== REISERFS_PROC_INFO ==========
fs/reiserfs/procfs.c:#if defined( REISERFS_PROC_INFO )
fs/reiserfs/procfs.c:/* REISERFS_PROC_INFO */
fs/reiserfs/procfs.c:/* REISERFS_PROC_INFO */
./fs/Kconfig:config REISERFS_PROC_INFO

that looks pretty clearly like someone should be testing
"CONFIG_REISERFS_PROC_INFO" rather than just "REISERFS_PROC_INFO", no?

  what about NTFS?

$ bad_config.sh fs/ntfs
========== NTFS_DEBUG ==========
fs/ntfs/attrib.c:#ifdef NTFS_DEBUG          <---  aha!
./fs/Kconfig:config NTFS_DEBUG
========== NTFS_RW ==========
fs/ntfs/logfile.h:#ifdef NTFS_RW            <--- another potential aha
fs/ntfs/logfile.h:#endif /* NTFS_RW */
... lots of dups removed ...
./fs/Kconfig:config NTFS_RW

  anyway, you get the idea.  have at it.

rday

-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://www.fsdev.dreamhosters.com/wiki/index.php?title=Main_Page
========================================================================
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