linux-kernel - Re: [PATCH] iommu/vt-d: Fix W=1 clang warning in intel/perf.c

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Date:   Thu, 17 Jun 2021 22:30:48 +0200
From:   Joerg Roedel <jroedel@...e.de>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        David Woodhouse <dwmw2@...radead.org>,
        iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] iommu/vt-d: Fix W=1 clang warning in intel/perf.c

On Thu, Jun 17, 2021 at 10:16:50AM -0700, Nick Desaulniers wrote:
> On Thu, Jun 17, 2021 at 7:54 AM Joerg Roedel <joro@...tes.org> wrote:
> >
> > From: Joerg Roedel <jroedel@...e.de>
> >
> > Fix this warning when compiled with clang and W=1:
> >
> >         drivers/iommu/intel/perf.c:16: warning: Function parameter or member 'latency_lock' not described in 'DEFINE_SPINLOCK'
> >         drivers/iommu/intel/perf.c:16: warning: expecting prototype for perf.c(). Prototype was for DEFINE_SPINLOCK() instead
> 
> I think these warnings are actually produced by kernel-doc? (not clang)

Will kernel-doc check automatically when COMPILER=clang is set and W=1?
Because I did not explicitly enable any kernel-doc checks.

Regards,

	Joerg