linux-kernel - Re: [PATCH] memstick: make enable

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Date:	Tue, 29 Mar 2011 09:48:56 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Linus <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Alex Dubov <oakad@...oo.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Subject: Re: [PATCH] memstick: make enable_dma less generic in r592

Hi all,

ignore this ...  I will send a fixed version soon, sorry

On Tue, 29 Mar 2011 09:24:16 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> On Mon, 28 Mar 2011 14:44:58 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > Hi all,
> > 
> > After merging the final tree, today's linux-next build (powerpc
> > allyesconfig) failed like this:
> > 
> > drivers/memstick/host/r592.c:26: error: 'enable_dma' redeclared as different kind of symbol
> > arch/powerpc/include/asm/dma.h:189: note: previous definition of 'enable_dma' was here
> > 
> > Caused by commit 926341250102 ("memstick: add driver for Ricoh R5C592
> > card reader").
> > 
> > enable_dma() is also defined in a few other architectures including x86
> > (presumably asm/dma.h does not get included there).
> > 
> > I just reverted that commit for today.
> 
> I will, instead, apply this patch for today:
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Tue, 29 Mar 2011 09:12:53 +1100
> Subject: [PATCH] memstick: make enable_dma less generic in r592
> 
> Fixes this build error:
> 
> drivers/memstick/host/r592.c:26: error: 'enable_dma' redeclared as different kind of symbol
> arch/powerpc/include/asm/dma.h:189: note: previous definition of 'enable_dma' was here
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> Cc: Alex Dubov <oakad@...oo.com>
> Cc: Maxim Levitsky <maximlevitsky@...il.com>
> ---
>  drivers/memstick/host/r592.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
> index 767406c..ecf3d7d 100644
> --- a/drivers/memstick/host/r592.c
> +++ b/drivers/memstick/host/r592.c
> @@ -23,7 +23,7 @@
>  #include <linux/swab.h>
>  #include "r592.h"
>  
> -static int enable_dma = 1;
> +static int r592_enable_dma = 1;
>  static int debug;
>  
>  static const char *tpc_names[] = {
> @@ -267,7 +267,7 @@ static void r592_stop_dma(struct r592_device *dev, int error)
>  /* Test if hardware supports DMA */
>  static void r592_check_dma(struct r592_device *dev)
>  {
> -	dev->dma_capable = enable_dma &&
> +	dev->dma_capable = r592_enable_dma &&
>  		(r592_read_reg(dev, R592_FIFO_DMA_SETTINGS) &
>  			R592_FIFO_DMA_SETTINGS_CAP);
>  }
> @@ -898,7 +898,7 @@ static void __exit r592_module_exit(void)
>  module_init(r592_module_init);
>  module_exit(r592_module_exit);
>  
> -module_param(enable_dma, bool, S_IRUGO);
> +module_param_named(r592_enable_dma, enable_dma, bool, S_IRUGO);
>  MODULE_PARM_DESC(enable_dma, "Enable usage of the DMA (default)");
>  module_param(debug, int, S_IRUGO | S_IWUSR);
>  MODULE_PARM_DESC(debug, "Debug level (0-3)");
> -- 
> 1.7.4.1
> 
> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@...b.auug.org.au
> http://www.canb.auug.org.au/~sfr/


-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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