linux-kernel - Re: [PATCH 5/12] ISDN/sc: fix longstanding warning

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Date:	Wed, 24 Oct 2007 09:24:40 +0200
From:	Karsten Keil <kkeil@...e.de>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, akpm@...ux-foundation.org,
	isdn4linux@...tserv.isdn4linux.de
Subject: Re: [PATCH 5/12] ISDN/sc: fix longstanding warning

On Tue, Oct 23, 2007 at 06:36:39PM -0400, Jeff Garzik wrote:
> drivers/isdn/sc/shmem.c: In function ‘memcpy_toshmem’:
> drivers/isdn/sc/shmem.c:54: warning: passing argument 1 of ‘memcpy_toio’ makes pointer from integer without a cast
> 
> Also, remove some unneeded braces, and add some useful whitespace.
> 
> Signed-off-by: Jeff Garzik <jgarzik@...hat.com>

Acked.
> ---
> 
> diff --git a/drivers/isdn/sc/shmem.c b/drivers/isdn/sc/shmem.c
> index 034d41a..e0331e0 100644
> --- a/drivers/isdn/sc/shmem.c
> +++ b/drivers/isdn/sc/shmem.c
> @@ -28,15 +28,15 @@ void memcpy_toshmem(int card, void *dest, const void *src, size_t n)
>  {
>  	unsigned long flags;
>  	unsigned char ch;
> +	unsigned long dest_rem = ((unsigned long) dest) % 0x4000;
>  
> -	if(!IS_VALID_CARD(card)) {
> +	if (!IS_VALID_CARD(card)) {
>  		pr_debug("Invalid param: %d is not a valid card id\n", card);
>  		return;
>  	}
>  
> -	if(n > SRAM_PAGESIZE) {
> +	if (n > SRAM_PAGESIZE)
>  		return;
> -	}
>  
>  	/*
>  	 * determine the page to load from the address
> @@ -50,8 +50,7 @@ void memcpy_toshmem(int card, void *dest, const void *src, size_t n)
>  
>  	outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80,
>  		sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]);
> -	memcpy_toio(sc_adapter[card]->rambase +
> -		((unsigned long) dest % 0x4000), src, n);
> +	memcpy_toio(sc_adapter[card]->rambase + dest_rem, src, n);
>  	spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
>  	pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename,
>  		((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80);
> -
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-- 
Karsten Keil
SuSE Labs
ISDN and VOIP development
SUSE LINUX Products GmbH, Maxfeldstr.5 90409 Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg)
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