powerpc/dma: pci_set_dma_mask() shouldn't fail if mask fits in RAM

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On an iMac G5, the b43 driver is failing to initialise because trying to
set the dma mask to 30-bit fails. Even though there's only 512MiB of RAM
in the machine anyway:
	https://bugzilla.redhat.com/show_bug.cgi?id=514787

We should probably let it succeed if the available RAM in the system
doesn't exceed the requested limit.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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This commit is contained in:

Benjamin Herrenschmidt 2009-08-10 16:36:38 +10:00

parent f4b9a98868

commit b2f2e8fee3

1 changed files with 3 additions and 3 deletions

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arch/powerpc/kernel/dma.c

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