Revision 722ec35f7faefcc34d12616eca7976a848870f9d authored by Marek Szyprowski on 16 February 2016, 14:14:44 UTC, committed by Will Deacon on 17 February 2016, 11:48:01 UTC
This patch ensures that devices, which got registered before arch_initcall
will be handled correctly by IOMMU-based DMA-mapping code.
Cc: <stable@vger.kernel.org>
Fixes: 13b8629f6511 ("arm64: Add IOMMU dma_ops")
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
1 parent 7f4e346
gcd.c
#include <linux/kernel.h>
#include <linux/gcd.h>
#include <linux/export.h>
/* Greatest common divisor */
unsigned long gcd(unsigned long a, unsigned long b)
{
unsigned long r;
if (a < b)
swap(a, b);
if (!b)
return a;
while ((r = a % b) != 0) {
a = b;
b = r;
}
return b;
}
EXPORT_SYMBOL_GPL(gcd);
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