linux-kernel - Re: [PATCH 04/16] drivers/fsi: Add fsi master definition

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Date:   Wed, 7 Dec 2016 10:06:10 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Chris Bostic <christopher.lee.bostic@...il.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, linux@...linux.org.uk,
        sre@...nel.org, mturquette@...libre.com, geert+renesas@...der.be,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Jeremy Kerr <jk@...abs.org>, joel@....id.au,
        linux-kernel@...r.kernel.org, andrew@...id.au,
        alistair@...ple.id.au, benh@...nel.crashing.org,
        Chris Bostic <cbostic@...ibm.com>
Subject: Re: [PATCH 04/16] drivers/fsi: Add fsi master definition

On Tue, Dec 06, 2016 at 08:09:30PM -0600, Chris Bostic wrote:
> From: Jeremy Kerr <jk@...abs.org>
> 
> Signed-off-by: Jeremy Kerr <jk@...abs.org>
> Signed-off-by: Chris Bostic <cbostic@...ibm.com>
> ---
>  drivers/fsi/fsi-core.c   | 20 ++++++++++++++++++++
>  drivers/fsi/fsi-master.h | 37 +++++++++++++++++++++++++++++++++++++
>  2 files changed, 57 insertions(+)
>  create mode 100644 drivers/fsi/fsi-master.h
> 
> diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
> index 3d55bd5..ce9428d 100644
> --- a/drivers/fsi/fsi-core.c
> +++ b/drivers/fsi/fsi-core.c
> @@ -17,6 +17,26 @@
>  #include <linux/fsi.h>
>  #include <linux/module.h>
>  
> +#include "fsi-master.h"
> +
> +static atomic_t master_idx = ATOMIC_INIT(-1);

You don't really want/need an atomic variable, please use the simple ida
interface instead.

thanks,

greg k-h