kern/59716: Need a mechanism to more selectively build and install modules

[paul%whooppee.com@localhost]

>Number:         59716
>Category:       kern
>Synopsis:       Need a mechanism to more selectively build and install modules
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Oct 20 07:35:00 +0000 2025
>Originator:     Paul Goyette
>Release:        NetBSD 11.99.3
>Organization:
+---------------------+--------------------------+----------------------+
| Paul Goyette (.sig) | PGP Key fingerprint:     | E-mail addresses:    |
| (Retired)           | 1B11 1849 721C 56C8 F63A | paul%whooppee.com@localhost    |
| Software Developer  | 6E2E 05FD 15CE 9F2D 5102 | pgoyette%netbsd.org@localhost  |
| & Network Engineer  |                          | pgoyette99%gmail.com@localhost |
+---------------------+--------------------------+----------------------+
>Environment:
	
	
System: NetBSD speedy.whooppee.com 11.99.3 NetBSD 11.99.3 (SPEEDY 2025-10-02 05:04:28 UTC) #0: Thu Oct 2 08:10:57 UTC 2025 paul%speedy.whooppee.com@localhost:/build/netbsd-local/obj/amd64/sys/arch/amd64/compile/SPEEDY amd64
Architecture: x86_64
Machine: amd64
>Description:
We need a mechanism to selectively build and install modules based on
bus attachment rather than only selecting based on machine and/or
architecture.  Ref the following comment in $SRC/sys/modules/Makefile
starting at line 484

	# For now, all of these are disabled, pending resolution of how to deal
	# with attachment-specific modules and bus-specific modules (as opposed
	# to machine- or architecture-specific modules)

	.if 0
	...

Note that there are more than 30 modules listed which aren't even
being compile-tested due to this lack of selectivity.

(Well, a few of them _are_ being built, tested, and used on my own
system, but my testing of even these few cannot be assumed to continue
indefinitely!)
	
>How-To-Repeat:
	
>Fix:
	

>Unformatted: