linux-kernel - Re: [PATCH v2 1/6] video: fbdev: controlfb: fix sparse warning about using incorrect type

Open Source and information security mailing list archives

Date:   Fri, 17 Apr 2020 16:07:51 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Daniel Vetter <daniel@...ll.ch>
Cc:     linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Andrzej Hajda <a.hajda@...sung.com>,
        Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH v2 1/6] video: fbdev: controlfb: fix sparse warning
 about using incorrect type

On 3/24/20 9:45 PM, Daniel Vetter wrote:
> On Tue, Mar 24, 2020 at 02:45:03PM +0100, Bartlomiej Zolnierkiewicz wrote:
>> Use in_le32() instead of le32_to_cpup() to fix sparse warning about
>> improper type of the argument.
>>
>> Also add missing inline keyword to control_par_to_var() definition
>> (to match function prototype).
>>
>> Acked-by: Sam Ravnborg <sam@...nborg.org>
>> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
>> ---
>>  drivers/video/fbdev/controlfb.c | 5 +++--
>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
>> index 38b61cdb5ca4..9625792f4413 100644
>> --- a/drivers/video/fbdev/controlfb.c
>> +++ b/drivers/video/fbdev/controlfb.c
>> @@ -313,7 +313,7 @@ static int controlfb_blank(int blank_mode, struct fb_info *info)
>>  		container_of(info, struct fb_info_control, info);
>>  	unsigned ctrl;
>>  
>> -	ctrl = le32_to_cpup(CNTRL_REG(p,ctrl));
>> +	ctrl = in_le32(CNTRL_REG(p, ctrl));
>>  	if (blank_mode > 0)
>>  		switch (blank_mode) {
>>  		case FB_BLANK_VSYNC_SUSPEND:
>> @@ -952,7 +952,8 @@ static int control_var_to_par(struct fb_var_screeninfo *var,
>>   * Convert hardware data in par to an fb_var_screeninfo
>>   */
>>  
>> -static void control_par_to_var(struct fb_par_control *par, struct fb_var_screeninfo *var)
>> +static inline void control_par_to_var(struct fb_par_control *par,
> 
> Just quick drive-by bikeshed, feel free to ignore: static inline within a
> .c file imo doesn't make sense anymore, compilers are smart enough
> nowadays. I'd just drop this.
> -Daniel

I fixed this while applying patch series, thanks!

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics

>> +	struct fb_var_screeninfo *var)
>>  {
>>  	struct control_regints *rv;
>>  	
>> -- 
>> 2.24.1
>>
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