linux-kernel - Re: [PATCH v2 3/4] staging: sm750fb: correctly define SM750LE_REVISION

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Date:	Mon, 9 Mar 2015 07:47:40 +0000
From:	"Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LFBDEV <linux-fbdev@...r.kernel.org>,
	OSUOSL Drivers <devel@...verdev.osuosl.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/4] staging: sm750fb: correctly define SM750LE_REVISION_ID

On Mon, Mar 9, 2015 at 7:35 AM, Sudip Mukherjee
<sudipm.mukherjee@...il.com> wrote:
> check if it is already defined before defining SM750LE_REVISION_ID
> again and at the same time mention correct data type.
>
> Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
> ---
>
> v2: removed the redundant cast in sm750_hw.c
>
>  drivers/staging/sm750fb/ddk750_chip.h | 4 +++-
>  drivers/staging/sm750fb/sm750_hw.c    | 2 +-
>  2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
> index 1c78875..d761b72 100644
> --- a/drivers/staging/sm750fb/ddk750_chip.h
> +++ b/drivers/staging/sm750fb/ddk750_chip.h
> @@ -1,7 +1,9 @@
>  #ifndef DDK750_CHIP_H__
>  #define DDK750_CHIP_H__
>  #define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
> -#define SM750LE_REVISION_ID (char)0xfe
> +#ifndef SM750LE_REVISION_ID
> +#define SM750LE_REVISION_ID ((unsigned char)0xfe)

BTW who is defining this somewhere else ?

Cheers,
--Prabhakar Lad
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