netdev - Re: [PATCH] SSB: make it depend on PCI

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Date:	Thu, 06 Nov 2008 12:22:53 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Mike Frysinger <vapier.adi@...il.com>
Cc:	Mike Frysinger <vapier@...too.org>, Michael Buesch <mb@...sch.de>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] SSB: make it depend on PCI

On Thu, 2008-11-06 at 06:15 -0500, Mike Frysinger wrote:

> while that may be the intent, it doesnt work today.
> 
> drivers/ssb/main.c always includes linux/ssb/ssb.h
> 
> linux/ssb/ssb.h always calls pci_dma_* functions
> 
> arches that do not support PCI fail to build:
>   CC      drivers/ssb/main.o
> In file included from drivers/ssb/ssb_private.h:5,
>                  from drivers/ssb/main.c:12:
> include/linux/ssb/ssb.h: In function 'ssb_dma_mapping_error':
> include/linux/ssb/ssb.h:430: error: implicit declaration of function 'pci_dma_mapping_error'
> include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_for_cpu':
> include/linux/ssb/ssb.h:475: error: implicit declaration of function 'pci_dma_sync_single_for_cpu'
> include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_for_device':
> include/linux/ssb/ssb.h:493: error: implicit declaration of function 'pci_dma_sync_single_for_device'
> include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_cpu':
> include/linux/ssb/ssb.h:517: error: implicit declaration of function 'dma_sync_single_range_for_cpu'
> include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_device':
> include/linux/ssb/ssb.h:538: error: implicit declaration of function 'dma_sync_single_range_for_device'
> drivers/ssb/main.c: In function 'ssb_dma_set_mask':
> drivers/ssb/main.c:1183: error: implicit declaration of function 'dma_set_mask'


That seems odd, shouldn't at least the dma_sync_* functions and
dma_set_mask be supported?

There probably need to be ifdefs, if you look at those functions then
you'll see that it depends on the bustype the device is on.

johannes

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