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Subject: Re: [patch 20/30] net/mlx4: Replace irq_to_desc() abuse
To:     Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Marc Zyngier <maz@kernel.org>,
        Tariq Toukan <tariqt@nvidia.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-rdma@vger.kernel.org,
        "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
        Helge Deller <deller@gmx.de>,
        afzal mohammed <afzal.mohd.ma@gmail.com>,
        linux-parisc@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
        linux-arm-kernel@lists.infradead.org,
        Mark Rutland <mark.rutland@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Heiko Carstens <hca@linux.ibm.com>, linux-s390@vger.kernel.org,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
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        Daniel Vetter <daniel@ffwll.ch>,
        Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>,
        Chris Wilson <chris@chris-wilson.co.uk>,
        Wambui Karuga <wambui.karugax@gmail.com>,
        intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
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        linux-gpio@vger.kernel.org, Lee Jones <lee.jones@linaro.org>,
        Jon Mason <jdmason@kudzu.us>,
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        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Rob Herring <robh@kernel.org>,
        Bjorn Helgaas <bhelgaas@google.com>,
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        Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>,
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        Stefano Stabellini <sstabellini@kernel.org>,
        xen-devel@lists.xenproject.org
References: <20201210192536.118432146@linutronix.de>
 <20201210194044.580936243@linutronix.de>
From:   Tariq Toukan <ttoukan.linux@gmail.com>
Message-ID: <01e427f9-7238-d6a8-25ec-8585914d32df@gmail.com>
Date:   Sun, 13 Dec 2020 13:24:00 +0200
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On 12/10/2020 9:25 PM, Thomas Gleixner wrote:
> No driver has any business with the internals of an interrupt
> descriptor. Storing a pointer to it just to use yet another helper at the
> actual usage site to retrieve the affinity mask is creative at best. Just
> because C does not allow encapsulation does not mean that the kernel has no
> limits.
> 
> Retrieve a pointer to the affinity mask itself and use that. It's still
> using an interface which is usually not for random drivers, but definitely
> less hideous than the previous hack.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Cc: Tariq Toukan <tariqt@nvidia.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: netdev@vger.kernel.org
> Cc: linux-rdma@vger.kernel.org
> ---
>   drivers/net/ethernet/mellanox/mlx4/en_cq.c   |    8 +++-----
>   drivers/net/ethernet/mellanox/mlx4/en_rx.c   |    6 +-----
>   drivers/net/ethernet/mellanox/mlx4/mlx4_en.h |    3 ++-
>   3 files changed, 6 insertions(+), 11 deletions(-)
> 

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>

Thanks for your patch.