CVS commit: src/sys/dev/ofw

["Rin Okuyama" <rin%netbsd.org@localhost>]

Module Name:    src
Committed By:   rin
Date:           Thu Jun 25 22:50:56 UTC 2020

Modified Files:
        src/sys/dev/ofw: ofw_subr.c

Log Message:
Fix fallout from migration from alloca() to malloc() in the previous.

of_compatible() is used at least for macppc in very early boot stage
where malloc() is still not available.

Therefore, for small (<= OFW_MAX_STACK_BUF_SIZE = 256) buffer, use
statically allocated one in the stack. For larger one, we continue to
use malloc() but KASSERT(!cold) is added for sure.

Fix boot failure for macppc reported by martin:
http://mail-index.netbsd.org/port-macppc/2020/06/25/msg002756.html


To generate a diff of this commit:
cvs rdiff -u -r1.37 -r1.38 src/sys/dev/ofw/ofw_subr.c

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