Re: linux-next: build failure after merge of the final tree (net-next tree related)

From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 20 Sep 2012 12:10:14 +0300

On Thu, Sep 20, 2012 at 05:36:22PM +1000, Stephen Rothwell wrote:

quoted

Hi all,

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/net/ethernet/i825xx/znet.c: In function 'hardware_init':
drivers/net/ethernet/i825xx/znet.c:868:2: error: implicit declaration of function 'isa_virt_to_bus' [-Werror=implicit-function-declaration]

Caused by commit 1d3ff76759b7 ("i825xx: znet: fix compiler warnings when
building a 64-bit kernel").  Is there some Kconfig dependency missing (CONFIG_ISA)?

If we make it dependent on CONFIG_ISA then the driver cannot be built with
64-bit kernel. Then again is there someone running 64-bit kernel on Zenith
Z-note notebook? From the pictures it looks like very ancient "laptop".

An alternative is to make it depend on X86 like this:

I think the powerpc port is at fault here.

Part of being able to advertise ISA_DMA_API is providing isa_virt_to_bus().