staging: r8188eu: remove the helpers of usb_write8()

Remove the unnecessary _rtw_write8() and usb_write8() and embed their
code into the caller (i.e., rtw_write8()).

_rtw_write8() is a mere redefinition of rtw_write8() and it is unneeded.
usb_write8() was the only functions assigned to the (*_usb_write8) pointer,
so we can simply remove it and make a direct call.

This patch is in preparation for the _io_ops structure removal.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Co-developed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20210917071837.10926-6-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/r8188eu/core/rtw_io.c b/drivers/staging/r8188eu/core/rtw_io.c
index cb24500..69ab6e2 100644 (file)
--- a/drivers/staging/r8188eu/core/rtw_io.c
+++ b/drivers/staging/r8188eu/core/rtw_io.c
@@ -34,21 +34,6 @@ jackson@realtek.com.tw
 #define rtw_cpu_to_le16(val)           cpu_to_le16(val)
 #define rtw_cpu_to_le32(val)           cpu_to_le32(val)
 
-int _rtw_write8(struct adapter *adapter, u32 addr, u8 val)
-{
-       struct io_priv *pio_priv = &adapter->iopriv;
-       struct  intf_hdl                *pintfhdl = &pio_priv->intf;
-       int (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
-       int ret;
-
-       _write8 = pintfhdl->io_ops._write8;
-
-       ret = _write8(pintfhdl, addr, val);
-
-
-       return RTW_STATUS_CODE(ret);
-}
-
 int _rtw_write16(struct adapter *adapter, u32 addr, u16 val)
 {
        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 39fd999..69e6486 100644 (file)
--- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
@@ -133,11 +133,16 @@ u32 rtw_read32(struct adapter *adapter, u32 addr)
        return le32_to_cpu(data);
 }
 
-static int usb_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val)
+int rtw_write8(struct adapter *adapter, u32 addr, u8 val)
 {
+       struct io_priv *pio_priv = &adapter->iopriv;
+       struct intf_hdl *pintfhdl = &pio_priv->intf;
        u16 wvalue = (u16)(addr & 0x0000ffff);
+       int ret;
+
+       ret = usbctrl_vendorreq(pintfhdl, wvalue, &val, 1, REALTEK_USB_VENQT_WRITE);
 
-       return usbctrl_vendorreq(pintfhdl, wvalue, &val, 1, REALTEK_USB_VENQT_WRITE);
+       return RTW_STATUS_CODE(ret);
 }
 
 static int usb_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
@@ -545,7 +550,6 @@ void rtl8188eu_set_intf_ops(struct _io_ops  *pops)
 
        memset((u8 *)pops, 0, sizeof(struct _io_ops));
        pops->_read_port = &usb_read_port;
-       pops->_write8 = &usb_write8;
        pops->_write16 = &usb_write16;
        pops->_write32 = &usb_write32;
        pops->_writeN = &usb_writeN;

diff --git a/drivers/staging/r8188eu/include/rtw_io.h b/drivers/staging/r8188eu/include/rtw_io.h
index c53d9c8..3b22902 100644 (file)
--- a/drivers/staging/r8188eu/include/rtw_io.h
+++ b/drivers/staging/r8188eu/include/rtw_io.h
@@ -252,7 +252,7 @@ void _rtw_read_mem(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
 void _rtw_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
 void _rtw_read_port_cancel(struct adapter *adapter);
 
-int _rtw_write8(struct adapter *adapter, u32 addr, u8 val);
+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_writeN(struct adapter *adapter, u32 addr, u32 length, u8 *pdata);
@@ -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_write8(adapter, addr, val)                                        \
-       _rtw_write8((adapter), (addr), (val))
 #define  rtw_write16(adapter, addr, val)                               \
        _rtw_write16((adapter), (addr), (val))
 #define  rtw_write32(adapter, addr, val)                               \