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of: Drop superfluous ULL suffix for ~0 

There is no need to specify a "ULL" suffix for "all bits set": "~0" is
sufficient, and works regardless of type.  In fact adding the suffix
makes the code more fragile.

Fixes: 48ab6d5d1f ("dma-mapping: fix 32-bit overflow with CONFIG_ARM_LPAE=n")
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Geert Uytterhoeven 2020-11-02 11:54:22 +01:00 committed by Linus Torvalds
parent 3cea11cd5e
commit 495023e4e4
1 changed files with 1 additions and 1 deletions
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2
drivers/of/device.c
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@ -112,7 +112,7 @@ int of_dma_configure_id(struct device *dev, struct device_node *np,
u64 dma_end = 0;
/* Determine the overall bounds of all DMA regions */
for (dma_start = ~0ULL; r->size; r++) {
for (dma_start = ~0; r->size; r++) {
/* Take lower and upper limits */
if (r->dma_start < dma_start)
dma_start = r->dma_start;