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Message-ID: <20201205103954.GA17088@kernel.org>
Date:   Sat, 5 Dec 2020 12:39:54 +0200
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Jerry Snitselaar <jsnitsel@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        kernel test robot <lkp@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Peter Huewe <peterhuewe@....de>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        Matthew Garrett <mjg59@...gle.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Jiri Kosina <jkosina@...e.cz>,
        Yunfeng Ye <yeyunfeng@...wei.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, jani.nikula@...ux.intel.com,
        joonas.lahtinen@...ux.intel.com
Subject: Re: [PATCH v3 1/4] irq: export kstat_irqs

On Fri, Dec 04, 2020 at 06:43:37PM -0700, Jerry Snitselaar wrote:
> To try and detect potential interrupt storms that
> have been occurring with tpm_tis devices it was suggested
> to use kstat_irqs() to get the number of interrupts.
> Since tpm_tis can be built as a module it needs kstat_irqs
> exported.

I think you should also have a paragraph explicitly stating that
i915_pmu.c contains a duplicate of kstat_irqs() because it is not
exported as of today. It adds a lot more weight to this given that
there is already existing mainline usage (kind of).

> 
> Reported-by: kernel test robot <lkp@...el.com>

I'm not sure if this makes much sense.

> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Jarkko Sakkinen <jarkko@...nel.org>
> Cc: Jason Gunthorpe <jgg@...pe.ca>
> Cc: Peter Huewe <peterhuewe@....de>
> Cc: James Bottomley <James.Bottomley@...senPartnership.com>
> Cc: Matthew Garrett <mjg59@...gle.com>
> Cc: Hans de Goede <hdegoede@...hat.com>
> Signed-off-by: Jerry Snitselaar <jsnitsel@...hat.com>

/Jarkko

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