Commit 7d877c35 authored Jun 04, 2020 by Pavel Machek Committed by David S. Miller Jun 04, 2020

net/xdp: use shift instead of 64 bit division



64bit division is kind of expensive, and shift should do the job here.

Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent a624a865

net/xdp/xdp_umem.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -336,7 +336,7 @@ static int xdp_umem_reg(struct xdp_umem umem, struct xdp_umem_reg mr)
		if ((addr + size) < addr)
		return -EINVAL;

		npgs = div_u64(size, PAGE_SIZE);
		npgs = size >> PAGE_SHIFT;
		if (npgs > U32_MAX)
		return -EINVAL;

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