[ide] obsolete "enable DMA by default" config options

CONFIG_IDEDMA_PCI_AUTO and CONFIG_IDEDMA_ICS_AUTO

Host drivers should deal with broken hardware themselves.
Warn if DMA support is enabled but "enable DMA by default" is not.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/arm/icside.c

@@ -197,6 +197,11 @@ static void icside_maskproc(ide_drive_t *drive, int mask)
 }
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_ICS
+
+#ifndef CONFIG_IDEDMA_ICS_AUTO
+#warning CONFIG_IDEDMA_ICS_AUTO=n support is obsolete, and will be removed soon.
+#endif
+
 /*
  * SG-DMA support.
  *

drivers/ide/setup-pci.c

@@ -494,6 +494,11 @@ static void ide_hwif_setup_dma(struct pci_dev *dev, ide_pci_device_t *d, ide_hwi
 		}
 	}
 }
+
+#ifndef CONFIG_IDEDMA_PCI_AUTO
+#warning CONFIG_IDEDMA_PCI_AUTO=n support is obsolete, and will be removed soon.
+#endif
+
 #endif /* CONFIG_BLK_DEV_IDEDMA_PCI*/
 
 /**