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Date: Fri, 16 Jan 2015 05:39:30 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: David Miller <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org> Subject: [PATCH net-next] niu: remove one compound_head() call From: Eric Dumazet <edumazet@...gle.com> After a "page = alloc_page(mask);", we do not need to use compound_head() : page already points to the right place. This would be true even if using alloc_pages(). Signed-off-by: Eric Dumazet <edumazet@...gle.com> --- drivers/net/ethernet/sun/niu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 0c6416213837..4b51f903fb73 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -3341,8 +3341,7 @@ static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, niu_hash_page(rp, page, addr); if (rp->rbr_blocks_per_page > 1) - atomic_add(rp->rbr_blocks_per_page - 1, - &compound_head(page)->_count); + atomic_add(rp->rbr_blocks_per_page - 1, &page->_count); for (i = 0; i < rp->rbr_blocks_per_page; i++) { __le32 *rbr = &rp->rbr[start_index + i]; -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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