linux-kernel - [PATCH 3/6] staging: r8188eu: change void parameters to u8

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Date:   Tue, 12 Apr 2022 20:57:51 +0200
From:   Michael Straube <straube.linux@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     Larry.Finger@...inger.net, phil@...lpotter.co.uk,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Subject: [PATCH 3/6] staging: r8188eu: change void parameters to u8

The second parameter of write_fw(), page_write() and block_write()
is a void pointer, but we always pass an u8 pointer. We can convert
this parameter to an u8 pointer. The pointer is not changed in the
functions, so we can safely remove the local variable bufferPtr.

Signed-off-by: Michael Straube <straube.linux@...il.com>
---
 drivers/staging/r8188eu/core/rtw_fw.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_fw.c b/drivers/staging/r8188eu/core/rtw_fw.c
index 5f59acfd8b5d..3cea4e41ab13 100644
--- a/drivers/staging/r8188eu/core/rtw_fw.c
+++ b/drivers/staging/r8188eu/core/rtw_fw.c
@@ -71,7 +71,7 @@ static void fw_download_enable(struct adapter *padapter, bool enable)
 	}
 }
 
-static int block_write(struct adapter *padapter, void *buffer, u32 size)
+static int block_write(struct adapter *padapter, u8 *buffer, u32 size)
 {
 	int ret = _SUCCESS;
 	u32	blockSize_p1 = 4;	/*  (Default) Phase #1 : PCI muse use 4-byte write to download FW */
@@ -79,7 +79,6 @@ static int block_write(struct adapter *padapter, void *buffer, u32 size)
 	u32	blockSize_p3 = 1;	/*  Phase #3 : Use 1-byte, the remnant of FW image. */
 	u32	blockCount_p1 = 0, blockCount_p2 = 0, blockCount_p3 = 0;
 	u32	remainSize_p1 = 0, remainSize_p2 = 0;
-	u8 *bufferPtr	= (u8 *)buffer;
 	u32	i = 0, offset = 0;
 
 	blockSize_p1 = MAX_REG_BLOCK_SIZE;
@@ -89,7 +88,7 @@ static int block_write(struct adapter *padapter, void *buffer, u32 size)
 	remainSize_p1 = size % blockSize_p1;
 
 	for (i = 0; i < blockCount_p1; i++) {
-		ret = rtw_writeN(padapter, (FW_8188E_START_ADDRESS + i * blockSize_p1), blockSize_p1, (bufferPtr + i * blockSize_p1));
+		ret = rtw_writeN(padapter, (FW_8188E_START_ADDRESS + i * blockSize_p1), blockSize_p1, (buffer + i * blockSize_p1));
 		if (ret == _FAIL)
 			goto exit;
 	}
@@ -102,7 +101,7 @@ static int block_write(struct adapter *padapter, void *buffer, u32 size)
 		remainSize_p2 = remainSize_p1 % blockSize_p2;
 
 		for (i = 0; i < blockCount_p2; i++) {
-			ret = rtw_writeN(padapter, (FW_8188E_START_ADDRESS + offset + i * blockSize_p2), blockSize_p2, (bufferPtr + offset + i * blockSize_p2));
+			ret = rtw_writeN(padapter, (FW_8188E_START_ADDRESS + offset + i * blockSize_p2), blockSize_p2, (buffer + offset + i * blockSize_p2));
 
 			if (ret == _FAIL)
 				goto exit;
@@ -116,7 +115,7 @@ static int block_write(struct adapter *padapter, void *buffer, u32 size)
 		blockCount_p3 = remainSize_p2 / blockSize_p3;
 
 		for (i = 0; i < blockCount_p3; i++) {
-			ret = rtw_write8(padapter, (FW_8188E_START_ADDRESS + offset + i), *(bufferPtr + offset + i));
+			ret = rtw_write8(padapter, (FW_8188E_START_ADDRESS + offset + i), *(buffer + offset + i));
 
 			if (ret == _FAIL)
 				goto exit;
@@ -127,7 +126,7 @@ static int block_write(struct adapter *padapter, void *buffer, u32 size)
 	return ret;
 }
 
-static int page_write(struct adapter *padapter, u32 page, void *buffer, u32 size)
+static int page_write(struct adapter *padapter, u32 page, u8 *buffer, u32 size)
 {
 	u8 value8;
 	u8 u8Page = (u8)(page & 0x07);
@@ -138,21 +137,20 @@ static int page_write(struct adapter *padapter, u32 page, void *buffer, u32 size
 	return block_write(padapter, buffer, size);
 }
 
-static int write_fw(struct adapter *padapter, void *buffer, u32 size)
+static int write_fw(struct adapter *padapter, u8 *buffer, u32 size)
 {
 	/*  Since we need dynamic decide method of dwonload fw, so we call this function to get chip version. */
 	/*  We can remove _ReadChipVersion from ReadpadapterInfo8192C later. */
 	int ret = _SUCCESS;
 	u32	pageNums, remainSize;
 	u32	page, offset;
-	u8 *bufferPtr = (u8 *)buffer;
 
 	pageNums = size / MAX_PAGE_SIZE;
 	remainSize = size % MAX_PAGE_SIZE;
 
 	for (page = 0; page < pageNums; page++) {
 		offset = page * MAX_PAGE_SIZE;
-		ret = page_write(padapter, page, bufferPtr + offset, MAX_PAGE_SIZE);
+		ret = page_write(padapter, page, buffer + offset, MAX_PAGE_SIZE);
 
 		if (ret == _FAIL)
 			goto exit;
@@ -160,7 +158,7 @@ static int write_fw(struct adapter *padapter, void *buffer, u32 size)
 	if (remainSize) {
 		offset = pageNums * MAX_PAGE_SIZE;
 		page = pageNums;
-		ret = page_write(padapter, page, bufferPtr + offset, remainSize);
+		ret = page_write(padapter, page, buffer + offset, remainSize);
 
 		if (ret == _FAIL)
 			goto exit;
-- 
2.35.1