tree d97a16be3c5c6e3df17cc2ae535cada149486a51
parent 41f7f60d31e5e1dfc9a92957b3e14e08a2f04964
author FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> 1204704570 +0900
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1204768513 -0800

parisc: fix IOMMU's device boundary overflow bug on 32bits arch

On 32bits boxes, boundary_size becomes zero due to a overflow and we
hit BUG_ON in iommu_is_span_boundary.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Matthew Wilcox <matthew@wil.cx>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>