| From 7588713482056dcb8395da1d6fa470559f139e94 Mon Sep 17 00:00:00 2001 |
| From: ligd <liguiding1@xiaomi.com> |
| Date: Thu, 16 Feb 2023 17:41:57 +0800 |
| Subject: [PATCH 5/6] rpmsg: do cache_invalidate() when real data returned |
| |
| Change-Id: Ib5788c3974e40421deda2d100a46f61348ccafbd |
| Signed-off-by: ligd <liguiding1@xiaomi.com> |
| --- |
| lib/rpmsg/rpmsg_virtio.c | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| diff --git a/lib/rpmsg/rpmsg_virtio.c open-amp/lib/rpmsg/rpmsg_virtio.c |
| index 1a510e6..3db86e6 100644 |
| --- a/lib/rpmsg/rpmsg_virtio.c |
| +++ open-amp/lib/rpmsg/rpmsg_virtio.c |
| @@ -239,7 +239,8 @@ static void *rpmsg_virtio_get_rx_buffer(struct rpmsg_virtio_device *rvdev, |
| |
| #ifdef VIRTIO_CACHED_BUFFERS |
| /* Invalidate the buffer before returning it */ |
| - metal_cache_invalidate(data, *len); |
| + if (data) |
| + metal_cache_invalidate(data, *len); |
| #endif /* VIRTIO_CACHED_BUFFERS */ |
| |
| return data; |
| -- |
| 2.25.1 |
| |
