linux-kernel - Re: [PATCH] coresight: do not use the BIT() macro in the UAPI header

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Message-ID: <20200326141011.GA1313869@kroah.com>
Date:   Thu, 26 Mar 2020 15:10:11 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Eugene Syromiatnikov <esyr@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-stm32@...md-mailman.stormreply.com,
        Pratik Patel <pratikp@...eaurora.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Michael Williams <michael.williams@....com>,
        Chunyan Zhang <zhang.chunyan@...aro.org>,
        "Dmitry V. Levin" <ldv@...linux.org>
Subject: Re: [PATCH] coresight: do not use the BIT() macro in the UAPI header

On Tue, Mar 24, 2020 at 09:31:15AM -0600, Mathieu Poirier wrote:
> On Mon, 23 Mar 2020 at 22:22, Eugene Syromiatnikov <esyr@...hat.com> wrote:
> >
> > The BIT() macro definition is not available for the UAPI headers
> > (moreover, it can be defined differently in the user space); replace
> > its usage with the _BITUL() macro that is defined in <linux/const.h>.
> >
> > Fixes: 237483aa5cf4 ("coresight: stm: adding driver for CoreSight STM component")
> > Signed-off-by: Eugene Syromiatnikov <esyr@...hat.com>
> > ---
> >  include/uapi/linux/coresight-stm.h | 6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
> >
> > diff --git a/include/uapi/linux/coresight-stm.h b/include/uapi/linux/coresight-stm.h
> > index aac550a..8847dbf 100644
> > --- a/include/uapi/linux/coresight-stm.h
> > +++ b/include/uapi/linux/coresight-stm.h
> > @@ -2,8 +2,10 @@
> >  #ifndef __UAPI_CORESIGHT_STM_H_
> >  #define __UAPI_CORESIGHT_STM_H_
> >
> > -#define STM_FLAG_TIMESTAMPED   BIT(3)
> > -#define STM_FLAG_GUARANTEED    BIT(7)
> > +#include <linux/const.h>
> > +
> > +#define STM_FLAG_TIMESTAMPED   _BITUL(3)
> > +#define STM_FLAG_GUARANTEED    _BITUL(7)
> 
> Greg, if you want to pick this up right away:
> 
> Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> 
> Otherwise let me know and I'll add it to my next tree.

I'll take it now, thanks.

greg k-h