Commit a9c2f188 authored Aug 01, 2007 by Stefan Richter

ieee1394: revert "sbp2: enforce 32bit DMA mapping"

Revert commit 0555659d from 2.6.22-rc1.
The dma_set_mask call somehow failed on a PowerMac G5, PPC64:
http://lkml.org/lkml/2007/8/1/344



Should there ever occur a DMA mapping beyond the physical DMA range, a
proper SBP-2 firmware will report transport errors.  So let's leave it
at that.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Tested-by: Olaf Hering <olh@suse.de>

parent 1ed43950

drivers/ieee1394/sbp2.c

+0 −5

Original line number	Diff line number	Diff line
		@@ -773,11 +773,6 @@ static struct sbp2_lu sbp2_alloc_device(struct unit_directory ud)
		SBP2_ERR("failed to register lower 4GB address range");
		goto failed_alloc;
		}
		#else
		if (dma_set_mask(hi->host->device.parent, DMA_32BIT_MASK)) {
		SBP2_ERR("failed to set 4GB DMA mask");
		goto failed_alloc;
		}
		#endif
		}