linux-kernel - Re: [PATCH] ssb: Fix Sparse error in main

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Date:	Wed, 01 Oct 2014 09:29:04 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Pramod Gurav <pramod.gurav@...rtplayin.com>
Cc:	linux-kernel@...r.kernel.org, Michael Buesch <m@...s.ch>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] ssb: Fix Sparse error in main

On Wed, 2014-10-01 at 12:36 +0530, Pramod Gurav wrote:
> This change fixes below sparse error:
> 
> drivers/ssb/main.c:94:16: warning: symbol 'ssb_sdio_func_to_bus'
> was not declared. Should it be static?
> 
> Cc: Michael Buesch <m@...s.ch>
> Cc: netdev@...r.kernel.org
> Signed-off-by: Pramod Gurav <pramod.gurav@...rtplayin.com>
> ---
>  drivers/ssb/ssb_private.h |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
> index eb507a5..86bbbe3 100644
> --- a/drivers/ssb/ssb_private.h
> +++ b/drivers/ssb/ssb_private.h
> @@ -193,6 +193,7 @@ extern struct ssb_bus *ssb_pci_dev_to_bus(struct pci_dev *pdev);
>  int ssb_for_each_bus_call(unsigned long data,
>  			  int (*func)(struct ssb_bus *bus, unsigned long data));
>  extern struct ssb_bus *ssb_pcmcia_dev_to_bus(struct pcmcia_device *pdev);
> +struct ssb_bus *ssb_sdio_func_to_bus(struct sdio_func *func);
>  
>  struct ssb_freeze_context {
>  	/* Pointer to the bus */

To me this looked like an odd way to silence that warning. So I dug a
bit further.

ssb_sdio_func_to_bus() was added in commit 24ea602e183c ("ssb: Implement
SDIO host bus support"). So it was added in release v2.6.32. I found no
evidence this function was ever used. Can't it be removed?


Paul Bolle

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