linux-kernel - [PATCH v9 10/16] staging: r8188eu: remove a bitwise AND from rtw

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Date:   Tue, 21 Sep 2021 20:18:28 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        David Laight <david.Laight@...lab.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Martin Kaiser <martin@...ser.cx>
Cc:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH v9 10/16] staging: r8188eu: remove a bitwise AND from rtw_writeN()

Remove an unnecessary bitwise AND because "length" can never be greater
than 0xffff since VENDOR_CMD_MAX_DATA_LEN is defined as '254'.

Co-developed-by: Pavel Skripkin <paskripkin@...il.com>
Signed-off-by: Pavel Skripkin <paskripkin@...il.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
---
 drivers/staging/r8188eu/hal/usb_ops_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
index 8e4e578ed60b..3b50d2b5c0e3 100644
--- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
@@ -176,7 +176,7 @@ int rtw_writeN(struct adapter *adapter, u32 addr, u32 length, u8 *data)
 	if (length > VENDOR_CMD_MAX_DATA_LEN)
 		return _FAIL;
 
-	ret = usbctrl_vendorreq(intf, value, data, (length & 0xffff), REALTEK_USB_VENQT_WRITE);
+	ret = usbctrl_vendorreq(intf, value, data, length, REALTEK_USB_VENQT_WRITE);
 
 	return RTW_STATUS_CODE(ret);
 }
-- 
2.33.0