[PATCH] ALSA: cs5535audio: Remove the redundant assignment

[PATCH] ALSA: cs5535audio: Remove the redundant assignment

[Jiapeng Chong]

Variable 'desc_addr' set but not used.

sound/pci/cs5535audio/cs5535audio_pcm.c:113:12: warning: variable 'desc_addr' set but not used.

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2739
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
 sound/pci/cs5535audio/cs5535audio_pcm.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index 0db24cc4d916..9c88e99e3750 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -110,7 +110,7 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au,
 					 unsigned int period_bytes)
 {
 	unsigned int i;
-	u32 addr, desc_addr, jmpprd_addr;
+	u32 addr, jmpprd_addr;
 	struct cs5535audio_dma_desc *lastdesc;
 
 	if (periods > CS5535AUDIO_MAX_DESCRIPTORS)
@@ -131,14 +131,12 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au,
 	/* the u32 cast is okay because in snd*create we successfully told
 	   pci alloc that we're only 32 bit capable so the upper will be 0 */
 	addr = (u32) substream->runtime->dma_addr;
-	desc_addr = (u32) dma->desc_buf.addr;
 	for (i = 0; i < periods; i++) {
 		struct cs5535audio_dma_desc *desc =
 			&((struct cs5535audio_dma_desc *) dma->desc_buf.area)[i];
 		desc->addr = cpu_to_le32(addr);
 		desc->size = cpu_to_le16(period_bytes);
 		desc->ctlreserved = cpu_to_le16(PRD_EOP);
-		desc_addr += sizeof(struct cs5535audio_dma_desc);
 		addr += period_bytes;
 	}
 	/* we reserved one dummy descriptor at the end to do the PRD jump */
-- 
2.20.1.7.g153144c

Re: [PATCH] ALSA: cs5535audio: Remove the redundant assignment

[Takashi Iwai]

On Mon, 07 Nov 2022 07:35:54 +0100,
Jiapeng Chong wrote:
> 
> Variable 'desc_addr' set but not used.
> 
> sound/pci/cs5535audio/cs5535audio_pcm.c:113:12: warning: variable 'desc_addr' set but not used.
> 
> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2739
> Reported-by: Abaci Robot <abaci@linux.alibaba.com>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>

Thanks, applied.


Takashi