linux-kernel - Re: [PATCH] iommu/omap: Fix debugfs_create

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Date:   Wed, 17 Jan 2018 14:23:49 +0100
From:   Joerg Roedel <joro@...tes.org>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     iommu@...ts.linux-foundation.org, Tony Lindgren <tony@...mide.com>,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iommu/omap: Fix debugfs_create_*() usage

On Tue, Jan 02, 2018 at 04:29:45PM +0100, Geert Uytterhoeven wrote:
> When exposing data access through debugfs, the correct
> debugfs_create_*() functions must be used, depending on data type.
> 
> Remove all casts from data pointers passed to debugfs_create_*()
> functions, as such casts prevent the compiler from flagging bugs.
> 
> omap_iommu.nr_tlb_entries is "int", hence casting to "u8 *" exposes only
> a part of it.  Fix this by using debugfs_create_u32() instead.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
> Compile-tested only.
> ---
>  drivers/iommu/omap-iommu-debug.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.