[src/trunk]: src/sys/external/bsd/drm2/include/linux statically allocated kfifo

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

details:   https://anonhg.NetBSD.org/src/rev/d21169d01095
branches:  trunk
changeset: 1028400:d21169d01095
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 10:57:34 2021 +0000

description:
statically allocated kfifo

diffstat:

 sys/external/bsd/drm2/include/linux/kfifo.h |  9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r 6416e18a948a -r d21169d01095 sys/external/bsd/drm2/include/linux/kfifo.h
--- a/sys/external/bsd/drm2/include/linux/kfifo.h       Sun Dec 19 10:57:27 2021 +0000
+++ b/sys/external/bsd/drm2/include/linux/kfifo.h       Sun Dec 19 10:57:34 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kfifo.h,v 1.3 2018/08/27 14:41:53 riastradh Exp $      */
+/*     $NetBSD: kfifo.h,v 1.4 2021/12/19 10:57:34 riastradh Exp $      */
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -52,7 +52,14 @@
                TYPE                    *kf_buf;                              \
        }
 
+#define        _KFIFO_TYPE(TAG, TYPE, N)                                             \
+       struct TAG {                                                          \
+               struct kfifo_meta       kf_meta;                              \
+               TYPE                    kf_buf[N];                            \
+       }
+
 #define        DECLARE_KFIFO_PTR(FIFO, TYPE)   _KFIFO_PTR_TYPE(, TYPE) FIFO
+#define        DECLARE_KFIFO(FIFO, TYPE, N)    _KFIFO_TYPE(, TYPE, N) FIFO
 
 _KFIFO_PTR_TYPE(kfifo, void);