ixgbevf: use page_address offset from page

Based on commit 3456fd53421e
("igb: Use page_address offset from page instead of masking virtual address")

Update the handling of page addresses so that we always refer to them using
a void pointer, and try to use the consistent name of va indicating we are
working with a virtual address.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 9b3d43d..604b026 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -795,7 +795,7 @@ static bool ixgbevf_add_rx_frag(struct ixgbevf_ring *rx_ring,
                                struct sk_buff *skb)
 {
        struct page *page = rx_buffer->page;
-       unsigned char *va = page_address(page) + rx_buffer->page_offset;
+       void *va = page_address(page) + rx_buffer->page_offset;
 #if (PAGE_SIZE < 8192)
        unsigned int truesize = IXGBEVF_RX_BUFSZ;
 #else
@@ -831,7 +831,7 @@ static bool ixgbevf_add_rx_frag(struct ixgbevf_ring *rx_ring,
 
 add_tail_frag:
        skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page,
-                       (unsigned long)va & ~PAGE_MASK, size, truesize);
+                       va - page_address(page), size, truesize);
 
        return ixgbevf_can_reuse_rx_page(rx_buffer, page, truesize);
 }
@@ -856,13 +856,12 @@ static struct sk_buff *ixgbevf_fetch_rx_buffer(struct ixgbevf_ring *rx_ring,
                                      DMA_FROM_DEVICE);
 
        if (likely(!skb)) {
-               void *page_addr = page_address(page) +
-                                 rx_buffer->page_offset;
+               void *va = page_address(page) + rx_buffer->page_offset;
 
                /* prefetch first cache line of first page */
-               prefetch(page_addr);
+               prefetch(va);
 #if L1_CACHE_BYTES < 128
-               prefetch(page_addr + L1_CACHE_BYTES);
+               prefetch(va + L1_CACHE_BYTES);
 #endif
 
                /* allocate a skb to store the frags */