linux-kernel - [PATCH v5 07/19] staging: r8188eu: remove the helpers of usb

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Date:   Wed, 15 Sep 2021 14:41:37 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Philip Potter <phil@...lpotter.co.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        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>
Cc:     "Fabio M . De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH v5 07/19] staging: r8188eu: remove the helpers of usb_write32

From: Pavel Skripkin <paskripkin@...il.com>

Remove the unnecessary _rtw_write32() and usb_write32() and embed their
code into the caller (i.e., rtw_write32()).

_rtw_write32() is a mere redefinition of rtw_write32() and it is unneeded.
usb_write32() was the only functions assigned to the (*_usb_write32)
pointer, so we can simply remove it and make a direct call.

This patch is in preparation for the _io_ops structure removal.

Co-developed-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
Signed-off-by: Pavel Skripkin <paskripkin@...il.com>
---
 drivers/staging/r8188eu/core/rtw_io.c       | 15 ---------------
 drivers/staging/r8188eu/hal/usb_ops_linux.c | 10 +++++++---
 drivers/staging/r8188eu/include/rtw_io.h    |  4 +---
 3 files changed, 8 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_io.c b/drivers/staging/r8188eu/core/rtw_io.c
index 7547e25d870b..98c9823fe53b 100644
--- a/drivers/staging/r8188eu/core/rtw_io.c
+++ b/drivers/staging/r8188eu/core/rtw_io.c
@@ -34,21 +34,6 @@ jackson@...ltek.com.tw
 #define rtw_cpu_to_le16(val)		cpu_to_le16(val)
 #define rtw_cpu_to_le32(val)		cpu_to_le32(val)
 
-int _rtw_write32(struct adapter *adapter, u32 addr, u32 val)
-{
-	struct io_priv *pio_priv = &adapter->iopriv;
-	struct	intf_hdl		*pintfhdl = &pio_priv->intf;
-	int (*_write32)(struct intf_hdl *pintfhdl, u32 addr, u32 val);
-	int ret;
-
-	_write32 = pintfhdl->io_ops._write32;
-
-	ret = _write32(pintfhdl, addr, val);
-
-
-	return RTW_STATUS_CODE(ret);
-}
-
 int _rtw_writeN(struct adapter *adapter, u32 addr, u32 length, u8 *pdata)
 {
 	struct io_priv *pio_priv = &adapter->iopriv;
diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
index 128cdb178abc..73f90b21364e 100644
--- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
@@ -158,12 +158,17 @@ int rtw_write16(struct adapter *adapter, u32 addr, u16 val)
 	return RTW_STATUS_CODE(ret);
 }
 
-static int usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
+int rtw_write32(struct adapter *adapter, u32 addr, u32 val)
 {
+	struct io_priv *pio_priv = &adapter->iopriv;
+	struct intf_hdl *pintfhdl = &pio_priv->intf;
 	u16 wvalue = (u16)(addr & 0x0000ffff);
 	__le32 data = cpu_to_le32(val);
+	int ret;
 
-	return usbctrl_vendorreq(pintfhdl, wvalue, &data, 4, REALTEK_USB_VENQT_WRITE);
+	ret = usbctrl_vendorreq(pintfhdl, wvalue, &data, 4, REALTEK_USB_VENQT_WRITE);
+
+	return RTW_STATUS_CODE(ret);
 }
 
 static int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata)
@@ -555,7 +560,6 @@ void rtl8188eu_set_intf_ops(struct _io_ops	*pops)
 
 	memset((u8 *)pops, 0, sizeof(struct _io_ops));
 	pops->_read_port = &usb_read_port;
-	pops->_write32 = &usb_write32;
 	pops->_writeN = &usb_writeN;
 	pops->_write_port = &usb_write_port;
 	pops->_read_port_cancel = &usb_read_port_cancel;
diff --git a/drivers/staging/r8188eu/include/rtw_io.h b/drivers/staging/r8188eu/include/rtw_io.h
index 0cb1f626a549..83e2ed13b667 100644
--- a/drivers/staging/r8188eu/include/rtw_io.h
+++ b/drivers/staging/r8188eu/include/rtw_io.h
@@ -254,7 +254,7 @@ void _rtw_read_port_cancel(struct adapter *adapter);
 
 int rtw_write8(struct adapter *adapter, u32 addr, u8 val);
 int rtw_write16(struct adapter *adapter, u32 addr, u16 val);
-int _rtw_write32(struct adapter *adapter, u32 addr, u32 val);
+int rtw_write32(struct adapter *adapter, u32 addr, u32 val);
 int _rtw_writeN(struct adapter *adapter, u32 addr, u32 length, u8 *pdata);
 
 int _rtw_write8_async(struct adapter *adapter, u32 addr, u8 val);
@@ -271,8 +271,6 @@ void _rtw_write_port_cancel(struct adapter *adapter);
 	_rtw_read_port((adapter), (addr), (cnt), (mem))
 #define rtw_read_port_cancel(adapter) _rtw_read_port_cancel((adapter))
 
-#define  rtw_write32(adapter, addr, val)				\
-	_rtw_write32((adapter), (addr), (val))
 #define  rtw_writeN(adapter, addr, length, data)			\
 	_rtw_writeN((adapter), (addr), (length), (data))
 #define rtw_write8_async(adapter, addr, val)				\
-- 
2.33.0