lib/iommu-common.c: do not use 0xffffffffffffffffl for computing align_mask

Using a 64 bit constant generates "warning: integer constant is too
large for 'long' type" on 32 bit platforms.  Instead use ~0ul and
BITS_PER_LONG.

Detected by Andrew Morton on ARMD.

Signed-off-by: Sowmini Varadhan <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index df30632f0bef9ec1c36a48d83a6eb87cd18ee405..ff19f66d3f7fbd635a44cc03614b5fbe4485cc56 100644 (file)
--- a/lib/iommu-common.c
+++ b/lib/iommu-common.c
@@ -119,7 +119,7 @@ unsigned long iommu_tbl_range_alloc(struct device *dev,
        unsigned long align_mask = 0;
 
        if (align_order > 0)
-               align_mask = 0xffffffffffffffffl >> (64 - align_order);
+               align_mask = ~0ul >> (BITS_PER_LONG - align_order);
 
        /* Sanity check */
        if (unlikely(npages == 0)) {