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

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Message-ID: <20200324062853.GD1977781@kroah.com>
Date:   Tue, 24 Mar 2020 07:28:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Eugene Syromiatnikov <esyr@...hat.com>
Cc:     linux-kernel@...r.kernel.org, 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>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        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 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?

Just open-code it, I didn't think we could use any BIT()-like macros in
uapi .h files.

thanks,

greg k-h