From fd01a15164a15328fd96f9ce820f0fc9f700f00b Mon Sep 17 00:00:00 2001 From: Venkata Prasad Potturu Date: Wed, 14 Jun 2023 16:07:05 +0530 Subject: [PATCH] ASoC: SOF: amd: Add support for IPC with a reply_size set to zero Add support for IPC tx_message with a reply_size set to zero, return zero when message reply_size is zero at acp_dsp_ipc_get_reply(). Signed-off-by: Venkata Prasad Potturu Link: https://lore.kernel.org/r/20230614103707.2246296-1-venkataprasad.potturu@amd.com Signed-off-by: Mark Brown --- sound/soc/sof/amd/acp-ipc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/sof/amd/acp-ipc.c b/sound/soc/sof/amd/acp-ipc.c index 749e856dc601..8a0fc635a997 100644 --- a/sound/soc/sof/amd/acp-ipc.c +++ b/sound/soc/sof/amd/acp-ipc.c @@ -130,6 +130,13 @@ static void acp_dsp_ipc_get_reply(struct snd_sof_dev *sdev) memcpy(msg->reply_data, &reply, sizeof(reply)); ret = reply.error; } else { + /* + * To support an IPC tx_message with a + * reply_size set to zero. + */ + if (!msg->reply_size) + goto out; + /* reply correct size ? */ if (reply.hdr.size != msg->reply_size && !(reply.hdr.cmd & SOF_IPC_GLB_PROBE)) {