Remove the unused and unusable MDIOCLIST ioctl.
ClosedPublic
Actions

Authored by brooks on Jan 24 2019, 12:13 AM.

Details

Reviewers

kib
emaste

Commits

rS351132: md(4): remove the unused and unusable MDIOCLIST ioctl.

Summary

It is unused, the ABI was broken in r322969, and it is broken by design
(more than MDNPAD md devices can exist and there is no way to retreive
them with this interface).

mdconfig(8) was converted to use libgeom to obtain this information
in r157160 and any other consumers of MDIOCLIST should likewise be
converted.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

brooks created this revision.Jan 24 2019, 12:13 AM

Harbormaster completed remote builds in B22106: Diff 53133.Jan 24 2019, 12:13 AM

A search of dports for MDIOCLIST shows only on result (in a duplicate header) so I don't think an exp-run is required here https://grok.dragonflybsd.org/search?q=MDIOCLIST&defs=&refs=&path=&hist=&type=

Does the removal mean that we are unable to build some old releases in chroot ?

In D18936#404680, @kib wrote:

Does the removal mean that we are unable to build some old releases in chroot ?

Only for releases prior to rS157160 (March 2006) if they depend on being able to list all md(4) devices, but that was already broken in rS322969 when the ABI was broken by adding labels. I'd be surprised if anything depended on that. The usual pattern: