linux-kernel - [PATCH] staging: rtlwifi: Use proper enumerated types for Wi-Fi only interface

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Message-Id: <20180921221202.20448-1-natechancellor@gmail.com>
Date:   Fri, 21 Sep 2018 15:12:02 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH] staging: rtlwifi: Use proper enumerated types for Wi-Fi only interface

Clang warns when one enumerated type is implicitly converted to another.

drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c:1264:34: warning:
implicit conversion from enumeration type 'enum btc_chip_interface' to
different enumeration type 'enum wifionly_chip_interface'
[-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_PCI;
                                             ~ ^~~~~~~~~~~~
drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c:1267:34: warning:
implicit conversion from enumeration type 'enum btc_chip_interface' to
different enumeration type 'enum wifionly_chip_interface'
[-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_USB;
                                             ~ ^~~~~~~~~~~~
drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c:1270:34: warning:
implicit conversion from enumeration type 'enum btc_chip_interface' to
different enumeration type 'enum wifionly_chip_interface'
[-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_UNKNOWN;
                                             ~ ^~~~~~~~~~~~~~~~
3 warnings generated.

Use the values from the correct enumerated type, wifionly_chip_interface.

BTC_INTF_UNKNOWN = WIFIONLY_INTF_UNKNOWN = 0
BTC_INTF_PCI = WIFIONLY_INTF_PCI = 0
BTC_INTF_USB = WIFIONLY_INTF_USB = 0

Link: https://github.com/ClangBuiltLinux/linux/issues/171
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
---
 drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c
index 4d1f9bf53c53..85a7490e6bbd 100644
--- a/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -1261,13 +1261,13 @@ bool exhalbtc_initlize_variables_wifi_only(struct rtl_priv *rtlpriv)
 
 	switch (rtlpriv->rtlhal.interface) {
 	case INTF_PCI:
-		wifionly_cfg->chip_interface = BTC_INTF_PCI;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_PCI;
 		break;
 	case INTF_USB:
-		wifionly_cfg->chip_interface = BTC_INTF_USB;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_USB;
 		break;
 	default:
-		wifionly_cfg->chip_interface = BTC_INTF_UNKNOWN;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_UNKNOWN;
 		break;
 	}
 
-- 
2.19.0