Re: [PATCH] allow SGI IOC4 chipset support

[Jes Sorensen <jes@wildopensource.com>]

>>>>> "Christoph" == Christoph Hellwig <hch@infradead.org> writes:

Christoph> On Mon, Jan 05, 2004 at 05:09:24PM -0800, Jesse Barnes
Christoph> wrote:
>> The 'depends' directive for SGI IOC4 support is too restrictive.
>> Just kill it altogether.

Christoph> Umm, it won't work for anything but a kernel with SN2
Christoph> support compile in due to the bridge-level dma byteswapping
Christoph> it needs (through a week symbol, that's why you don't see
Christoph> compile failures for other architectures, eek!).

Christoph> So at least make it depend on CONFIG_IA64

What about adding this?

Though shall not use weak symbols in though kernel ....

Jes

--- drivers/ide/pci/sgiioc4.c~	Tue Jan  6 01:43:41 2004
+++ drivers/ide/pci/sgiioc4.c	Wed Jan  7 03:13:13 2004
@@ -719,6 +719,7 @@
 	return 0;
 }
 
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
 /* This ensures that we can build this for generic kernels without
  * having all the SN2 code sync'd and merged.
  */
@@ -726,9 +727,10 @@
 	PCIDMA_ENDIAN_BIG,
 	PCIDMA_ENDIAN_LITTLE
 } pciio_endian_t;
-pciio_endian_t __attribute__ ((weak)) snia_pciio_endian_set(struct pci_dev
-					    *pci_dev, pciio_endian_t device_end,
-					    pciio_endian_t desired_end);
+pciio_endian_t snia_pciio_endian_set(struct pci_dev
+				     *pci_dev, pciio_endian_t device_end,
+				     pciio_endian_t desired_end);
+#endif
 
 static unsigned int __init
 pci_init_sgiioc4(struct pci_dev *dev, ide_pci_device_t * d)
@@ -754,6 +756,7 @@
 		return 1;
 	}
 
+#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
 	/* Enable Byte Swapping in the PIC... */
 	if (snia_pciio_endian_set) {
 		snia_pciio_endian_set(dev, PCIDMA_ENDIAN_LITTLE,
@@ -764,7 +767,7 @@
 		       d->name, dev->slot_name);
 		return 1;
 	}
-
+#endif
 	return sgiioc4_ide_setup_pci_device(dev, d);
 }