linux-kernel - [PATCH 1/9] staging/rtl8187se: Remove code without effect

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Date:	Wed, 13 Feb 2013 03:58:14 +0100
From:	Peter Huewe <peterhuewe@....de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Peter Huewe <peterhuewe@....de>, Andrew Miller <amiller@...lx.com>,
	Maxim Mikityanskiy <maxtram95@...il.com>,
	YAMANE Toshiaki <yamanetoshi@...il.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/9] staging/rtl8187se: Remove code without effect

Local variable AcmCtrl is never read/used after assignment so we can remove
all assignments to it and the related code around the assignments.

Signed-off-by: Peter Huewe <peterhuewe@....de>
---
 drivers/staging/rtl8187se/r8185b_init.c |   49 +------------------------------
 1 files changed, 1 insertions(+), 48 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index f1db9e4..41419f0 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -964,54 +964,7 @@ void ActUpdateChannelAccessSetting(struct net_device *dev,
 					break;
 				}
 
-				/* Cehck ACM bit. */
-				/* If it is set, immediately set ACM control bit to downgrading AC for passing WMM testplan. Annie, 2005-12-13.	*/
-				{
-					PACI_AIFSN	pAciAifsn = (PACI_AIFSN)(&pAcParam->f.AciAifsn);
-					AC_CODING	eACI = pAciAifsn->f.ACI;
-
-					/*for 8187B AsynIORead issue */
-					u8	AcmCtrl = 0;
-					if (pAciAifsn->f.ACM) {
-						/* ACM bit is 1. */
-						switch (eACI) {
-						case AC0_BE:
-							AcmCtrl |= (BEQ_ACM_EN|BEQ_ACM_CTL|ACM_HW_EN); /* or 0x21 */
-							break;
-
-						case AC2_VI:
-							AcmCtrl |= (VIQ_ACM_EN|VIQ_ACM_CTL|ACM_HW_EN); /* or 0x42 */
-							break;
-
-						case AC3_VO:
-							AcmCtrl |= (VOQ_ACM_EN|VOQ_ACM_CTL|ACM_HW_EN); /* or 0x84 */
-							break;
-
-						default:
-							DMESGW("SetHwReg8185(): [HW_VAR_ACM_CTRL] ACM set failed: eACI is %d\n", eACI);
-							break;
-						}
-					} else {
-						/* ACM bit is 0. */
-						switch (eACI) {
-						case AC0_BE:
-							AcmCtrl &= ((~BEQ_ACM_EN) & (~BEQ_ACM_CTL) & (~ACM_HW_EN)); /* and 0xDE */
-							break;
-
-						case AC2_VI:
-							AcmCtrl &= ((~VIQ_ACM_EN) & (~VIQ_ACM_CTL) & (~ACM_HW_EN)); /* and 0xBD */
-							break;
-
-						case AC3_VO:
-							AcmCtrl &= ((~VOQ_ACM_EN) & (~VOQ_ACM_CTL) & (~ACM_HW_EN)); /* and 0x7B */
-							break;
-
-						default:
-							break;
-						}
-					}
-					write_nic_byte(dev, ACM_CONTROL, 0);
-				}
+				write_nic_byte(dev, ACM_CONTROL, 0);
 			}
 		}
 	}
-- 
1.7.8.6

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