linux-kernel - Re: [PATCH v2 4/7] uacce: Use

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Date:   Fri, 21 May 2021 21:56:49 +0800
From:   Zhangfei Gao <zhangfei.gao@...aro.org>
To:     Joe Richey <joerichey94@...il.com>, trivial@...nel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Joe Richey <joerichey@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Zhangfei Gao <zhangfei.gao@...aro.org>,
        Zhou Wang <wangzhou1@...ilicon.com>,
        Andy Whitcroft <apw@...onical.com>,
        Joe Perches <joe@...ches.com>,
        Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        Sasha Levin <sashal@...nel.org>,
        "Chang S. Bae" <chang.seok.bae@...el.com>,
        Andi Kleen <ak@...ux.intel.com>, Peter Xu <peterx@...hat.com>,
        Lei Cao <lei.cao@...atus.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Zaibo Xu <xuzaibo@...wei.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        linux-accelerators@...ts.ozlabs.org
Subject: Re: [PATCH v2 4/7] uacce: Use _BITUL() macro in UAPI headers



On 2021/5/21 下午4:58, Joe Richey wrote:
> From: Joe Richey <joerichey@...gle.com>
>
> Replace BIT() in uacce's UPAI header with _BITUL(). BIT() is not defined
> in the UAPI headers and its usage may cause userspace build errors.
>
> Fixes: 015d239ac014 ("uacce: add uacce driver")
> Signed-off-by: Joe Richey <joerichey@...gle.com>
Thanks Joe

Acked-by: Zhangfei Gao <zhangfei.gao@...aro.org>

> ---
>   include/uapi/misc/uacce/uacce.h | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/misc/uacce/uacce.h b/include/uapi/misc/uacce/uacce.h
> index cc7185678f47..e0b4c8a2d29c 100644
> --- a/include/uapi/misc/uacce/uacce.h
> +++ b/include/uapi/misc/uacce/uacce.h
> @@ -2,6 +2,7 @@
>   #ifndef _UAPIUUACCE_H
>   #define _UAPIUUACCE_H
>   
> +#include <linux/const.h>
>   #include <linux/types.h>
>   #include <linux/ioctl.h>
>   
> @@ -23,7 +24,7 @@
>    *		  Support PASID
>    *		  Support device page faults (PCI PRI or SMMU Stall)
>    */
> -#define UACCE_DEV_SVA		BIT(0)
> +#define UACCE_DEV_SVA		_BITUL(0)
>   
>   /**
>    * enum uacce_qfrt: queue file region type