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powerpc: Fix link errors on 32-bit machines using legacy DMA 

The new merged DMA code will try to access isa_bridge_pcidev when
trying to DMA to/from legacy devices. This is however only defined
on 64-bit. Fixes this for now by adding the variable, even if it
stays NULL. In the long run, we'll make isa-bridge.c common to
32 and 64-bit.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
hifive-unleashed-5.1
Benjamin Herrenschmidt 2008-10-13 17:51:46 +00:00
parent b556151110
commit 7b6b574ca7
1 changed files with 6 additions and 0 deletions
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6
arch/powerpc/kernel/pci_32.c
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@ -53,6 +53,12 @@ LIST_HEAD(hose_list);
static int pci_bus_count;
/* This will remain NULL for now, until isa-bridge.c is made common
* to both 32-bit and 64-bit.
*/
struct pci_dev *isa_bridge_pcidev;
EXPORT_SYMBOL_GPL(isa_bridge_pcidev);
static void
fixup_hide_host_resource_fsl(struct pci_dev *dev)
{