When I enable generic IDE chipset support, but do not enable DMA, the kernel won't compile. The patch below (while admittedly inelegant) fixed that up for me.
For the record, I only enabled these IDE options:
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_GENERIC=y
-Phil Oester
diff -ru linux-2.5.45-orig/drivers/ide/pci/generic.c linux-2.5.45/drivers/ide/pci/generic.c
--- linux-2.5.45-orig/drivers/ide/pci/generic.c Wed Oct 30 19:42:57 2002
+++ linux-2.5.45/drivers/ide/pci/generic.c Fri Nov 1 14:42:16 2002
@@ -60,7 +60,11 @@
static void init_dma_generic (ide_hwif_t *hwif, unsigned long dmabase)
{
+#ifdef CONFIG_BLK_DEV_IDEDMA
ide_setup_dma(hwif, dmabase, 8);
+#else /* !CONFIG_BLK_DEV_IDEDMA */
+ return;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
}
extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
diff -ru linux-2.5.45-orig/drivers/ide/setup-pci.c linux-2.5.45/drivers/ide/setup-pci.c
--- linux-2.5.45-orig/drivers/ide/setup-pci.c Wed Oct 30 19:42:28 2002
+++ linux-2.5.45/drivers/ide/setup-pci.c Fri Nov 1 14:00:55 2002
@@ -475,6 +475,8 @@
return hwif;
}
+#ifdef CONFIG_BLK_DEV_IDEDMA
+
/**
* ide_hwif_setup_dma - configure DMA interface
* @dev: PCI device
@@ -528,6 +530,8 @@
}
}
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
/**
* ide_setup_pci_controller - set up IDE PCI
* @dev: PCI device