CVS log for src/sys/arch/vax/vsa/gpx.c

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vax/gpx: Stop copy{in,out}(9) from/to 0-length buffers

Found by GCC12 -Wmaybe-uninitialized.

Authored by kalvisd@.

Make local variables static.

Misc cleanup.

- move function declarations after struct declarations and
  before global variables
- sort function declarations per actual implementation
- explicitly denote 'static' for static functions
- some KNF

No functional change (though gcc generates different binary).

Pull up following revision(s) (requested by tsutsui in ticket #79):

	sys/arch/vax/conf/GENERIC: revision 1.217
	sys/arch/vax/conf/VAX780: revision 1.34
	sys/arch/vax/conf/files.vax: revision 1.126
	sys/arch/vax/vsa/smg.c: revision 1.63
	sys/arch/vax/include/qdreg.h: revision 1.7
	sys/arch/vax/vax/conf.c: revision 1.69
	sys/arch/vax/conf/INSTALL: revision 1.76
	sys/arch/vax/vsa/gpx.c: revision 1.1

Add a support for gpx(4) color framebuffer found on VAXstation 3100.

Ported from OpenBSD/vax. Note smg(4) monochrome onboard framebuffer
driver is also changed attached only if gpx(4) is not installed
or flags 1 is specified in config files, as OpenBSD did.

Tested on my VAXstation 3100/m30 with and without 8bpp gpx(4).

Revied on port-vax@ and "Please go ahead!" from ragge@.
https://mail-index.netbsd.org/port-vax/2023/01/thread1.html#004147

file gpx.c was added on branch netbsd-10 on 2023-02-12 12:27:26 +0000

Add a support for gpx(4) color framebuffer found on VAXstation 3100.

Poted from OpenBSD/vax. Note smg(4) monochrome onboard framebuffer
driver is also changed attached only if gpx(4) is not installed
or flags 1 is specified in config files, as OpenBSD did.

Tested on my VAXstation 3100/m30 with and without 8bpp gpx(4).
Revied on port-vax@ and "Please go ahead!" from ragge@.
 https://mail-index.netbsd.org/port-vax/2023/01/thread1.html#004147

Worth to pullup to netbsd-10.