CVS commit: src/sys/arch/next68k/include

["Izumi Tsutsui" <tsutsui%netbsd.org@localhost>]

Module Name:    src
Committed By:   tsutsui
Date:           Fri Jan 27 15:25:47 UTC 2023

Modified Files:
        src/sys/arch/next68k/include: bus_space.h

Log Message:
next68k: Specify proper constraints for bus_space_read region and multi ops.

These functions write the read data into memory at a specified pointer,
but without the "memory" constraint gcc could optimize out these ops
if the memory is allocated on local stack.

With this fix nextkbd(4) works again.

Should be pulled up to netbsd-10 and netbsd-9.


To generate a diff of this commit:
cvs rdiff -u -r1.19 -r1.20 src/sys/arch/next68k/include/bus_space.h

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