linux-kernel - [PATCH] staging: rtl8723bs: remove header file ethernet.h

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Date:   Wed, 25 Aug 2021 12:08:42 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     hdegoede@...hat.com, Larry.Finger@...inger.net,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH] staging: rtl8723bs: remove header file ethernet.h

The header file ehternet.h defines only two constants.

#define ETHERNET_HEADER_SIZE   14          /*  Ethernet Header Length */
#define LLC_HEADER_SIZE         6          /*  LLC Header Length */

Both are only used in the file core/rtw_recv.c and ETHERNET_HEADER_SIZE
just duplicates the in-kernel constant ETH_HLEN. Replace the usage of
ETHERNET_HEADER_SIZE with ETH_HLEN, move the definition of LLC_HEADER_SIZE
into rtw_rev.h (renamed to LLC_HEADER_LENGTH) and remove the now unused
header file ethernet.h.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/rtl8723bs/core/rtw_recv.c     |  6 +++---
 drivers/staging/rtl8723bs/include/drv_types.h |  1 -
 drivers/staging/rtl8723bs/include/ethernet.h  | 14 --------------
 drivers/staging/rtl8723bs/include/rtw_recv.h  |  2 ++
 4 files changed, 5 insertions(+), 18 deletions(-)
 delete mode 100644 drivers/staging/rtl8723bs/include/ethernet.h

diff --git a/drivers/staging/rtl8723bs/core/rtw_recv.c b/drivers/staging/rtl8723bs/core/rtw_recv.c
index d4c1725718d9..5b0a596eefb7 100644
--- a/drivers/staging/rtl8723bs/core/rtw_recv.c
+++ b/drivers/staging/rtl8723bs/core/rtw_recv.c
@@ -480,7 +480,7 @@ static union recv_frame *portctrl(struct adapter *adapter, union recv_frame *pre
 			prtnframe = precv_frame;
 
 			/* get ether_type */
-			ptr = ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE;
+			ptr = ptr + pfhdr->attrib.hdrlen + pfhdr->attrib.iv_len + LLC_HEADER_LENGTH;
 			memcpy(&be_tmp, ptr, 2);
 			ether_type = ntohs(be_tmp);
 
@@ -1485,7 +1485,7 @@ static signed int validate_recv_frame(struct adapter *adapter, union recv_frame
 			/*  dump eapol */
 			rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
 			/*  get ether_type */
-			memcpy(&eth_type, ptr + pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_SIZE, 2);
+			memcpy(&eth_type, ptr + pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_LENGTH, 2);
 			eth_type = ntohs((unsigned short) eth_type);
 #endif
 		}
@@ -1588,7 +1588,7 @@ static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe)
 		/* Offset 12 denote 2 mac address */
 		nSubframe_Length = get_unaligned_be16(pdata + 12);
 
-		if (a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length))
+		if (a_len < ETH_HLEN + nSubframe_Length)
 			break;
 
 		sub_pkt = rtw_os_alloc_msdu_pkt(prframe, nSubframe_Length, pdata);
diff --git a/drivers/staging/rtl8723bs/include/drv_types.h b/drivers/staging/rtl8723bs/include/drv_types.h
index 580028d28c42..c192b5a1a067 100644
--- a/drivers/staging/rtl8723bs/include/drv_types.h
+++ b/drivers/staging/rtl8723bs/include/drv_types.h
@@ -57,7 +57,6 @@
 
 #include <linux/ip.h>
 #include <linux/if_ether.h>
-#include <ethernet.h>
 
 #define SPEC_DEV_ID_NONE BIT(0)
 #define SPEC_DEV_ID_DISABLE_HT BIT(1)
diff --git a/drivers/staging/rtl8723bs/include/ethernet.h b/drivers/staging/rtl8723bs/include/ethernet.h
deleted file mode 100644
index 59899ab52aab..000000000000
--- a/drivers/staging/rtl8723bs/include/ethernet.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
- *
- ******************************************************************************/
-/*! \file */
-#ifndef __INC_ETHERNET_H
-#define __INC_ETHERNET_H
-
-#define ETHERNET_HEADER_SIZE	14		/*  Ethernet Header Length */
-#define LLC_HEADER_SIZE		6		/*  LLC Header Length */
-
-#endif /*  #ifndef __INC_ETHERNET_H */
diff --git a/drivers/staging/rtl8723bs/include/rtw_recv.h b/drivers/staging/rtl8723bs/include/rtw_recv.h
index 9c3cdcc990fa..a88b7c088a86 100644
--- a/drivers/staging/rtl8723bs/include/rtw_recv.h
+++ b/drivers/staging/rtl8723bs/include/rtw_recv.h
@@ -35,6 +35,8 @@
 
 #define MAX_SUBFRAME_COUNT	64
 
+#define LLC_HEADER_LENGTH	6
+
 /* for Rx reordering buffer control */
 struct recv_reorder_ctrl {
 	struct adapter	*padapter;
-- 
2.32.0