Commit 495023e4 authored Nov 02, 2020 by Geert Uytterhoeven Committed by Linus Torvalds Nov 02, 2020

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: 48ab6d5d ("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>

parent 3cea11cd

drivers/of/device.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

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