[PATCH 4.16 24/47] rtlwifi: rtl8192cu: Remove variable self-assignment in rf.c

[Greg Kroah-Hartman]

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matthias Kaehlcke <m...@chromium.org>

commit fb239c1209bb0f0b4830cc72507cc2f2d63fadbd upstream.

In _rtl92c_get_txpower_writeval_by_regulatory() the variable writeVal
is assigned to itself in an if ... else statement, apparently only to
document that the branch condition is handled and that a previously read
value should be returned unmodified. The self-assignment causes clang to
raise the following warning:

drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rf.c:304:13:
  error: explicitly assigning value of variable of type 'u32'
    (aka 'unsigned int') to itself [-Werror,-Wself-assign]
  writeVal = writeVal;

Delete the branch with the self-assignment.

Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
Acked-by: Larry Finger <larry.fin...@lwfinger.net>
Reviewed-by: Guenter Roeck <gro...@chromium.org>
Signed-off-by: Kalle Valo <kv...@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rf.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rf.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/rf.c
@@ -299,9 +299,6 @@ static void _rtl92c_get_txpower_writeval
                        writeVal = 0x00000000;
                if (rtlpriv->dm.dynamic_txhighpower_lvl == TXHIGHPWRLEVEL_BT1)
                        writeVal = writeVal - 0x06060606;
-               else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
-                        TXHIGHPWRLEVEL_BT2)
-                       writeVal = writeVal;
                *(p_outwriteval + rf) = writeVal;
        }
 }