netvsc: optimize calculation of number of slots

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Speed up transmit check for fragmented packets by using existing
macros to compute number of pages, and eliminate loop since
skb fragments each take a page. Number of slots is also unsigned.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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stephen hemminger 2017-06-08 16:21:18 -07:00 • committed by David S. Miller

parent e073782a41

commit 60b86665af

1 changed files with 10 additions and 33 deletions

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43

drivers/net/hyperv/netvsc_drv.c

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