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* [PATCH] ASoC: SOF: amd: Add support for IPC with a reply_size set to zero
@ 2023-06-14 10:37 Venkata Prasad Potturu
  2023-06-14 13:47 ` Mark Brown
  0 siblings, 1 reply; 2+ messages in thread
From: Venkata Prasad Potturu @ 2023-06-14 10:37 UTC (permalink / raw)
  To: broonie, alsa-devel
  Cc: vsujithkumar.reddy, Vijendar.Mukunda, Basavaraj.Hiregoudar,
	Sunil-kumar.Dommati, syed.sabakareem, mastan.katragadda,
	arungopal.kondaveeti, Venkata Prasad Potturu,
	Pierre-Louis Bossart, Liam Girdwood, Peter Ujfalusi, Bard Liao,
	Ranjani Sridharan, Daniel Baluta, Kai Vehmanen, Jaroslav Kysela,
	Takashi Iwai, V sujith kumar Reddy, Iuliana Prodan,
	Ajit Kumar Pandey,
	moderated list:SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS,
	open list

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 <venkataprasad.potturu@amd.com>
---
 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)) {
-- 
2.25.1


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2023-06-14 10:37 [PATCH] ASoC: SOF: amd: Add support for IPC with a reply_size set to zero Venkata Prasad Potturu
2023-06-14 13:47 ` Mark Brown

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