Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'dma-mapping-5.10-2' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fix from Christoph Hellwig:
"Fix an integer overflow on 32-bit platforms in the new DMA range code
(Geert Uytterhoeven)"
* tag 'dma-mapping-5.10-2' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: fix 32-bit overflow with CONFIG_ARM_LPAE=n
+3
-3
+3
-3
drivers/of/device.c
+3
-3
drivers/of/device.c
···
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{
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const struct iommu_ops *iommu;
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const struct bus_dma_region *map = NULL;
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-
dma_addr_t dma_start = 0;
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+
u64 dma_start = 0;
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u64 mask, end, size = 0;
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bool coherent;
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int ret;
···
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return ret == -ENODEV ? 0 : ret;
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} else {
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const struct bus_dma_region *r = map;
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-
dma_addr_t dma_end = 0;
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+
u64 dma_end = 0;
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/* Determine the overall bounds of all DMA regions */
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-
for (dma_start = ~(dma_addr_t)0; r->size; r++) {
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+
for (dma_start = ~0ULL; r->size; r++) {
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/* Take lower and upper limits */
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if (r->dma_start < dma_start)
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dma_start = r->dma_start;