linux-kernel - [PATCH] ASoC: q6dsp: q6afe: remove unneeded dead-store initialization

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Message-Id: <1619345553-29781-1-git-send-email-yang.lee@linux.alibaba.com>
Date:   Sun, 25 Apr 2021 18:12:33 +0800
From:   Yang Li <yang.lee@...ux.alibaba.com>
To:     perex@...ex.cz
Cc:     srinivas.kandagatla@...aro.org, bgoswami@...eaurora.org,
        lgirdwood@...il.com, broonie@...nel.org, tiwai@...e.com,
        nathan@...nel.org, ndesaulniers@...gle.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        Yang Li <yang.lee@...ux.alibaba.com>
Subject: [PATCH] ASoC: q6dsp: q6afe: remove unneeded dead-store initialization

Variables 'wait' and 'port_id' are being initialized, however the
values are never read and updated later on, hence the redundant
initializations can be removed.

Cleans up clang warnings:
sound/soc/qcom/qdsp6/q6afe.c:933:21: warning: Value stored to 'wait'
during its initialization is never read
sound/soc/qcom/qdsp6/q6afe.c:1186:6: warning: Value stored to 'port_id'
during its initialization is never read

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@...ux.alibaba.com>
---
 sound/soc/qcom/qdsp6/q6afe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c
index cad1cd1..442bf27 100644
--- a/sound/soc/qcom/qdsp6/q6afe.c
+++ b/sound/soc/qcom/qdsp6/q6afe.c
@@ -930,7 +930,7 @@ int q6afe_get_port_id(int index)
 static int afe_apr_send_pkt(struct q6afe *afe, struct apr_pkt *pkt,
 			    struct q6afe_port *port, uint32_t rsp_opcode)
 {
-	wait_queue_head_t *wait = &port->wait;
+	wait_queue_head_t *wait;
 	struct aprv2_ibasic_rsp_result_t *result;
 	int ret;
 
@@ -1183,7 +1183,7 @@ int q6afe_port_stop(struct q6afe_port *port)
 	struct afe_port_cmd_device_stop *stop;
 	struct q6afe *afe = port->afe;
 	struct apr_pkt *pkt;
-	int port_id = port->id;
+	int port_id;
 	int ret = 0;
 	int index, pkt_size;
 	void *p;
-- 
1.8.3.1