From ceaf7191b99daedd5b2026bf786c86ccadd94630 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Thu, 28 May 2020 09:35:11 -0500
Subject: [PATCH] ASoC: SOF: Replace zero-length array with flexible-array
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Git-commit: ceaf7191b99daedd5b2026bf786c86ccadd94630
Patch-mainline: v5.8-rc2
References: jsc#SLE-16518

There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/sof/probe.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sof/probe.h b/sound/soc/sof/probe.h
index b04b728c7224..5e159ab239fa 100644
--- a/sound/soc/sof/probe.h
+++ b/sound/soc/sof/probe.h
@@ -36,7 +36,7 @@ struct sof_probe_point_desc {
 struct sof_ipc_probe_dma_add_params {
 	struct sof_ipc_cmd_hdr hdr;
 	unsigned int num_elems;
-	struct sof_probe_dma dma[0];
+	struct sof_probe_dma dma[];
 } __packed;
 
 struct sof_ipc_probe_info_params {
@@ -51,19 +51,19 @@ struct sof_ipc_probe_info_params {
 struct sof_ipc_probe_dma_remove_params {
 	struct sof_ipc_cmd_hdr hdr;
 	unsigned int num_elems;
-	unsigned int stream_tag[0];
+	unsigned int stream_tag[];
 } __packed;
 
 struct sof_ipc_probe_point_add_params {
 	struct sof_ipc_cmd_hdr hdr;
 	unsigned int num_elems;
-	struct sof_probe_point_desc desc[0];
+	struct sof_probe_point_desc desc[];
 } __packed;
 
 struct sof_ipc_probe_point_remove_params {
 	struct sof_ipc_cmd_hdr hdr;
 	unsigned int num_elems;
-	unsigned int buffer_id[0];
+	unsigned int buffer_id[];
 } __packed;
 
 int sof_ipc_probe_init(struct snd_sof_dev *sdev,
-- 
2.16.4