cvs commit: src/sys/modules Makefile

[John Baldwin]

On Monday 02 August 2004 05:51 pm, Nate Lawson wrote:
> Mark Murray wrote:
> > Brooks Davis writes:
> >>IMO this is a module system bug not a bug in any given module.  There's
> >> no good reason for the system to succeed at loading a module that's
> >> already there regardless of how it got there.  I don't understand the
> >> module system well enough to know where the bug lies, but I believe the
> >> DECLARE_MODULE statement provides more then enough information to avoid
> >> duplicates.
> >
> > I'm looking to see if MODULE_VERSION() may fix this.
>
> The case where mem is compiled into the kernel and then an attempt is
> made to load it as a module needs to be detected by looking for an
> instance of the devclass.  See how acpi/legacy co-exist.  This is not
> just a problem with the same module being loaded multiple times.

mem is a dev_t aka struct cdev *, not a device_t.  There is no devclass.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org