linux-kernel - [PATCH v2 04/11] staging: rtl8192e: Remove unused variables numpacket.. and received

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Date:   Wed, 25 Jan 2023 21:08:47 +0100
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH v2 04/11] staging: rtl8192e: Remove unused variables
 numpacket.. and received_pre..

numpacket_toself, numpacket_matchbssid and received_preamble_GI are
initialized and increased but never read. Remove dead code. As a result
the local variable preamble_guardinterval is unused. Remove it also.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@...il.com>
---
V1->V2: removed unused variable preamble_guardinterval
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 11 -----------
 drivers/staging/rtl8192e/rtl8192e/rtl_core.h   |  3 ---
 2 files changed, 14 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index e9273dfb638e..b4651cea07a1 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -1685,10 +1685,6 @@ static void _rtl92e_translate_rx_signal_stats(struct net_device *dev,
 			 ether_addr_equal(praddr, priv->rtllib->dev->dev_addr);
 	if (WLAN_FC_GET_FRAMETYPE(fc) == RTLLIB_STYPE_BEACON)
 		bPacketBeacon = true;
-	if (bpacket_match_bssid)
-		priv->stats.numpacket_matchbssid++;
-	if (bpacket_toself)
-		priv->stats.numpacket_toself++;
 	_rtl92e_process_phyinfo(priv, tmp_buf, &previous_stats, pstats);
 	_rtl92e_query_rxphystatus(priv, pstats, pdesc, pdrvinfo,
 				  &previous_stats, bpacket_match_bssid,
@@ -1703,18 +1699,12 @@ static void _rtl92e_update_received_rate_histogram_stats(
 	struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev);
 	u32 rcvType = 1;
 	u32 rateIndex;
-	u32 preamble_guardinterval;
 
 	if (pstats->bCRC)
 		rcvType = 2;
 	else if (pstats->bICV)
 		rcvType = 3;
 
-	if (pstats->bShortPreamble)
-		preamble_guardinterval = 1;
-	else
-		preamble_guardinterval = 0;
-
 	switch (pstats->rate) {
 	case MGN_1M:
 		rateIndex = 0;
@@ -1804,7 +1794,6 @@ static void _rtl92e_update_received_rate_histogram_stats(
 		rateIndex = 28;
 		break;
 	}
-	priv->stats.received_preamble_GI[preamble_guardinterval][rateIndex]++;
 	priv->stats.received_rate_histogram[0][rateIndex]++;
 	priv->stats.received_rate_histogram[rcvType][rateIndex]++;
 }
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index 167c4aeea44e..70767238e721 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -184,9 +184,6 @@ enum reset_type {
 
 struct rt_stats {
 	unsigned long received_rate_histogram[4][32];
-	unsigned long received_preamble_GI[2][32];
-	unsigned long numpacket_matchbssid;
-	unsigned long numpacket_toself;
 	unsigned long num_process_phyinfo;
 	unsigned long numqry_phystatus;
 	unsigned long numqry_phystatusCCK;
-- 
2.39.1