CVS commit: [thorpej-cfargs] src/sys/kern

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sun Mar 21 17:58:40 UTC 2021

Modified Files:
        src/sys/kern [thorpej-cfargs]: subr_autoconf.c

Log Message:
In config_search(), we already asserted that either an interface
attribute is not specified, or the specified attribute is carried
by the parent.

Add an additional assertion: That an interface attribute is specified
or that the parent has fewer than 2 interface attributes (i.e. lack of
interface attribute specification would be ambiguous).

Yes, "fewer than 2".  Zero interface attributes doesn't really make sense,
because a device cannot then be a parent of another device by definition.
But cfparent_match() would already catch this situation gracefully, and
there is obviously no ambiguity when a device has no interface attributes.


To generate a diff of this commit:
cvs rdiff -u -r1.277.2.1 -r1.277.2.2 src/sys/kern/subr_autoconf.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.