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Subject[PATCH] ia64: add pci_get_legacy_ide_irq() (was: [2.6 patch] let BLK_DEV_AMD74XX depend on X86)

Adrian Bunk wrote:
>
> It's unlikely that this driver will ever be of any use on other
> architectures.

It is already used on PPC.

[ see arch/powerpc/platforms/maple/pci.c:maple_pci_get_legacy_ide_irq() ]


> This fixes the following compile error on ia64:
>
> <-- snip -->
>
> ...
> CC drivers/ide/pci/amd74xx.o
> /home/bunk/linux/kernel-2.6/linux-2.6.20-rc3-mm1/drivers/ide/pci/amd74xx.c:
> In function 'init_hwif_amd74xx':
> /home/bunk/linux/kernel-2.6/linux-2.6.20-rc3-mm1/drivers/ide/pci/amd74xx.c:421:
>
> warning: implicit declaration of function 'pci_get_legacy_ide_irq'
> CC drivers/ide/pci/cmd64x.o
> ...
> LD .tmp_vmlinux1
> drivers/built-in.o: In function `init_hwif_amd74xx':
> /home/bunk/linux/kernel-2.6/linux-2.6.20-rc3-mm1/drivers/ide/pci/amd74xx.c:421:
>
> undefined reference to `pci_get_legacy_ide_irq'
> make[1]: *** [.tmp_vmlinux1] Error 1
>
> <-- snip -->
>
>
> This fixes kernel Bugzilla #6644.

Does the following patch fix the problem?

[PATCH] ia64: add pci_get_legacy_ide_irq()

Add pci_get_legacy_ide_irq() identical to the one used by i386/x86_64.
Fixes amd74xx driver build on ia64 (bugzilla bug #6644).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

---
include/asm-ia64/pci.h | 6 ++++++
1 file changed, 6 insertions(+)

Index: a/include/asm-ia64/pci.h
===================================================================
--- a.orig/include/asm-ia64/pci.h
+++ a/include/asm-ia64/pci.h
@@ -167,4 +167,10 @@ pcibios_select_root(struct pci_dev *pdev

#define pcibios_scan_all_fns(a, b) 0

+#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+ return channel ? 15 : 14;
+}
+
#endif /* _ASM_IA64_PCI_H */


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