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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Eugene Syromiatnikov <esyr@redhat.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Michael Williams <michael.williams@arm.com>,
	linux-kernel@vger.kernel.org,
	Chunyan Zhang <zhang.chunyan@linaro.org>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	"Dmitry V. Levin" <ldv@altlinux.org>,
	Pratik Patel <pratikp@codeaurora.org>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] coresight: do not use the BIT() macro in the UAPI header
Date: Tue, 24 Mar 2020 11:19:38 +0100	[thread overview]
Message-ID: <20200324101938.GA2220478@kroah.com> (raw)
In-Reply-To: <20200324095304.GA2444@asgard.redhat.com>

On Tue, Mar 24, 2020 at 10:53:04AM +0100, Eugene Syromiatnikov wrote:
> On Tue, Mar 24, 2020 at 07:28:53AM +0100, Greg Kroah-Hartman wrote:
> > On Tue, Mar 24, 2020 at 05:22:13AM +0100, Eugene Syromiatnikov 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>.
> > 
> > Why is somehow _BITUL() ok to use here instead?
> 
> It is provided in an UAPI header (include/uapi/linux/const.h)
> and is appropriately prefixed with an underscore to avoid conflicts.

Because no one uses _ in their own macros?  :)

Anyway, this is fine, but if it's really the way forward, I think a lot
of files will end up being changed...

thanks,

greg k-h

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  reply	other threads:[~2020-03-24 10:19 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24  4:22 [PATCH] coresight: do not use the BIT() macro in the UAPI header Eugene Syromiatnikov
2020-03-24  6:28 ` Greg Kroah-Hartman
2020-03-24  9:53   ` Eugene Syromiatnikov
2020-03-24 10:19     ` Greg Kroah-Hartman [this message]
2020-03-24 12:13       ` Eugene Syromiatnikov
2020-03-24 15:31 ` Mathieu Poirier
2020-03-26 14:10   ` Greg Kroah-Hartman

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