staging: r8188eu: remove the helpers of rtw_read32()

Remove the unnecessary _rtw_readr32() and usb_read32() and embed their
code into the caller (i.e., rtw_read32()).

_rtw_read32() is a mere redefinition of rtw_read32() and it is unneeded.
usb_read32() was the only functions assigned to the (*_usb_read32) 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/20210917071837.10926-5-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 b5d1c8e..cb24500 100644 (file)
--- a/drivers/staging/r8188eu/core/rtw_io.c
+++ b/drivers/staging/r8188eu/core/rtw_io.c
@@ -34,20 +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)
 
-u32 _rtw_read32(struct adapter *adapter, u32 addr)
-{
-       u32 r_val;
-       struct io_priv *pio_priv = &adapter->iopriv;
-       struct  intf_hdl                *pintfhdl = &pio_priv->intf;
-       u32     (*_read32)(struct intf_hdl *pintfhdl, u32 addr);
-
-       _read32 = pintfhdl->io_ops._read32;
-
-       r_val = _read32(pintfhdl, addr);
-
-       return r_val;
-}
-
 int _rtw_write8(struct adapter *adapter, u32 addr, u8 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 8b4fc01..39fd999 100644 (file)
--- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
@@ -121,8 +121,10 @@ u16 rtw_read16(struct adapter *adapter, u32 addr)
        return (u16)(le32_to_cpu(data) & 0xffff);
 }
 
-static u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
+u32 rtw_read32(struct adapter *adapter, u32 addr)
 {
+       struct io_priv *pio_priv = &adapter->iopriv;
+       struct intf_hdl *pintfhdl = &pio_priv->intf;
        u16 wvalue = (u16)(addr & 0x0000ffff);
        __le32 data;
 
@@ -542,7 +544,6 @@ void rtl8188eu_set_intf_ops(struct _io_ops  *pops)
 {
 
        memset((u8 *)pops, 0, sizeof(struct _io_ops));
-       pops->_read32 = &usb_read32;
        pops->_read_port = &usb_read_port;
        pops->_write8 = &usb_write8;
        pops->_write16 = &usb_write16;

diff --git a/drivers/staging/r8188eu/include/rtw_io.h b/drivers/staging/r8188eu/include/rtw_io.h
index 527503d..c53d9c8 100644 (file)
--- a/drivers/staging/r8188eu/include/rtw_io.h
+++ b/drivers/staging/r8188eu/include/rtw_io.h
@@ -247,7 +247,7 @@ void _rtw_attrib_write(struct adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
 
 u8 rtw_read8(struct adapter *adapter, u32 addr);
 u16 rtw_read16(struct adapter *adapter, u32 addr);
-u32 _rtw_read32(struct adapter *adapter, u32 addr);
+u32 rtw_read32(struct adapter *adapter, u32 addr);
 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);
@@ -267,7 +267,6 @@ u32 _rtw_write_port_and_wait(struct adapter *adapter, u32 addr, u32 cnt,
                             u8 *pmem, int timeout_ms);
 void _rtw_write_port_cancel(struct adapter *adapter);
 
-#define rtw_read32(adapter, addr) _rtw_read32((adapter), (addr))
 #define rtw_read_port(adapter, addr, cnt, mem)                         \
        _rtw_read_port((adapter), (addr), (cnt), (mem))
 #define rtw_read_port_cancel(adapter) _rtw_read_port_cancel((adapter))