[src/trunk]: src/sys/dev/nvmm Add CTASSERT.

[maxv <maxv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f6649ff660b2
branches:  trunk
changeset: 936838:f6649ff660b2
user:      maxv <maxv%NetBSD.org@localhost>
date:      Wed Aug 05 16:36:33 2020 +0000

description:
Add CTASSERT.

diffstat:

 sys/dev/nvmm/nvmm.h |  7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diffs (19 lines):

diff -r 094c5060c921 -r f6649ff660b2 sys/dev/nvmm/nvmm.h
--- a/sys/dev/nvmm/nvmm.h       Wed Aug 05 15:48:09 2020 +0000
+++ b/sys/dev/nvmm/nvmm.h       Wed Aug 05 16:36:33 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nvmm.h,v 1.13 2020/08/01 08:18:36 maxv Exp $   */
+/*     $NetBSD: nvmm.h,v 1.14 2020/08/05 16:36:33 maxv Exp $   */
 
 /*
  * Copyright (c) 2018-2020 The NetBSD Foundation, Inc.
@@ -96,4 +96,9 @@
 #define NVMM_COMM_CPUID(off)           \
        ((off >> 12) & 0xFF)
 
+#ifdef _KERNEL
+/* At most one page, for the NVMM_COMM_* macros. */
+CTASSERT(sizeof(struct nvmm_comm_page) <= PAGE_SIZE);
 #endif
+
+#endif