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

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Message-ID: <20180923064322.GA12338@flashbox>
Date:   Sat, 22 Sep 2018 23:43:22 -0700
From:   Nathan Chancellor <natechancellor@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rtlwifi: Use proper enumerated types for Wi-Fi
 only interface

On Fri, Sep 21, 2018 at 03:12:02PM -0700, Nathan Chancellor wrote:
> 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
> 

I have sent a v2 making these values correct.

I will make sure the '--in-reply-to' option in the future.

Nathan

> 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
>