Re: wish: build time warning for missing MODULE_LICENSE

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On Sun, Mar 30, 2008 at 11:34:17PM +0300, Adrian Bunk wrote:
 > On Sun, Mar 30, 2008 at 09:04:30PM +0200, Sam Ravnborg wrote:
 > > On Sun, Mar 30, 2008 at 09:01:19PM +0300, Adrian Bunk wrote:
 > > > I just fixed a bug where I had accidentally removed a MODULE_LICENSE() 
 > > > from a file.
 > > > 
 > > > The problem is that such bugs are currently not discovered until someone 
 > > > actually runs a kernel with this module loaded.
 > > > 
 > > > Could we get a build time warning/error for a missing MODULE_LICENSE?
 > > 
 > > Is it something as simple as this you are after?
 > > [My dev box is dead atm so I have not done a kernel build
 > > with this, only a single module].
 > 
 > Thanks, it seems to work - and I'm currently working on fixing the bugs 
 > it catches.
 > 
 > Considering that these are trivial to fix I'd even suggest a fatal() 
 > instead of the warn() for making them obvious for everyone doing build 
 > testing.
 
In the Fedora kernel specfile, we have something to catch this at build time.
Relevant pieces are (munged a bit for clarity) ..

    find . -name "*.ko" -type f >modnames

    while read i
    do
      echo -n "$i " >> modinfo
      /sbin/modinfo -l $i >> modinfo
    done < modnames

    egrep -v \
          'GPL( v2)?$|Dual BSD/GPL$|Dual MPL/GPL$|GPL and additional rights$' \
          modinfo && exit 1

This hasn't been triggering though, so either it stopped working at some point,
or we don't build the module you mention.  Which was it out of curiosity ?
Or was your slip-up an -mm only thing?

	Dave

-- 
http://www.codemonkey.org.uk
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