Re: [PATCH -next] staging: ks7010: Macros with complex values

From: Greg KH
Date: Thu Feb 11 2021 - 06:44:05 EST


On Thu, Feb 11, 2021 at 01:57:04PM +0300, Fatih YILDIRIM wrote:
> On Thu, Feb 11, 2021 at 11:02:51AM +0100, Greg KH wrote:
> > On Thu, Feb 11, 2021 at 12:22:39PM +0300, Fatih Yildirim wrote:
> > > Fix for checkpatch.pl warning:
> > > Macros with complex values should be enclosed in parentheses.
> > >
> > > Signed-off-by: Fatih Yildirim <yildirim.fatih@xxxxxxxxx>
> > > ---
> > > drivers/staging/ks7010/ks_hostif.h | 24 ++++++++++++------------
> > > 1 file changed, 12 insertions(+), 12 deletions(-)
> > >
> > > diff --git a/drivers/staging/ks7010/ks_hostif.h b/drivers/staging/ks7010/ks_hostif.h
> > > index 39138191a556..c62a494ed6bb 100644
> > > --- a/drivers/staging/ks7010/ks_hostif.h
> > > +++ b/drivers/staging/ks7010/ks_hostif.h
> > > @@ -498,20 +498,20 @@ struct hostif_mic_failure_request {
> > > #define TX_RATE_FIXED 5
> > >
> > > /* 11b rate */
> > > -#define TX_RATE_1M (u8)(10 / 5) /* 11b 11g basic rate */
> > > -#define TX_RATE_2M (u8)(20 / 5) /* 11b 11g basic rate */
> > > -#define TX_RATE_5M (u8)(55 / 5) /* 11g basic rate */
> > > -#define TX_RATE_11M (u8)(110 / 5) /* 11g basic rate */
> > > +#define TX_RATE_1M ((u8)(10 / 5)) /* 11b 11g basic rate */
> > > +#define TX_RATE_2M ((u8)(20 / 5)) /* 11b 11g basic rate */
> > > +#define TX_RATE_5M ((u8)(55 / 5)) /* 11g basic rate */
> > > +#define TX_RATE_11M ((u8)(110 / 5)) /* 11g basic rate */
> >
> > But these are not "complex macros" that need an extra () added to them,
> > right?
> >
> > Checkpatch is a hint, it's not a code parser and can not always know
> > what is happening. With your knowledge of C, does this look like
> > something that needs to be "fixed"?
> >
> > thanks,
> >
> > greg k-h
>
> Hi Greg,
>
> Thanks for your reply.
> Actually, I'm following the Eudyptula Challenge and I'm at task 10.

First rule of that challenge is that you are not allowed to talk about
it in public :)

That being said, you didn't answer any of my questions above :(

greg k-h