linux-kernel - [PATCH] 6fire: Convert byte_rev

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Date:	Fri, 14 Nov 2014 13:13:45 +0800
From:	"Wang, Yalin" <Yalin.Wang@...ymobile.com>
To:	"'perex@...ex.cz'" <perex@...ex.cz>,
	"'tiwai@...e.de'" <tiwai@...e.de>,
	"'joe@...ches.com'" <joe@...ches.com>,
	"'alsa-devel@...a-project.org'" <alsa-devel@...a-project.org>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>
Subject: [PATCH] 6fire: Convert byte_rev_table uses to bitrev8

Use the inline function instead of directly indexing the array.

This allows some architectures with hardware instructions for bit
reversals to eliminate the array.

Signed-off-by: Joe Perches <joe@...ches.com>
Signed-off-by: Yalin Wang <yalin.wang@...ymobile.com>
---
 sound/usb/6fire/firmware.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
index 3b02e54..2e39c3f 100644
--- a/sound/usb/6fire/firmware.c
+++ b/sound/usb/6fire/firmware.c
@@ -316,7 +316,7 @@ static int usb6fire_fw_fpga_upload(
 
 	while (c != end) {
 		for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++)
-			buffer[i] = byte_rev_table[(u8) *c];
+			buffer[i] = bitrev8((u8) *c);
 
 		ret = usb6fire_fw_fpga_write(device, buffer, i);
 		if (ret < 0) {
-- 
2.1.1
--
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