[PATCH net-next] r8169: inline rtl8169_free_rx_databuff

[Heiner Kallweit]

rtl8169_free_rx_databuff is used in only one place, so let's inline it.
We can improve the loop because rtl8169_init_ring zero's RX_databuff
before calling rtl8169_rx_fill, and rtl8169_rx_fill fills
Rx_databuff starting from index 0.

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 24 +++++++----------------
 1 file changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c 
b/drivers/net/ethernet/realtek/r8169_main.c
index b2a275d85..641a34942 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -5260,18 +5260,6 @@ static inline void rtl8169_make_unusable_by_asic(struct 
RxDesc *desc)
        desc->opts1 &= ~cpu_to_le32(DescOwn | RsvdMask);
 }
 
-static void rtl8169_free_rx_databuff(struct rtl8169_private *tp,
-                                    struct page **data_buff,
-                                    struct RxDesc *desc)
-{
-       dma_unmap_page(tp_to_dev(tp), le64_to_cpu(desc->addr),
-                      R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
-
-       __free_pages(*data_buff, get_order(R8169_RX_BUF_SIZE));
-       *data_buff = NULL;
-       rtl8169_make_unusable_by_asic(desc);
-}
-
 static inline void rtl8169_mark_to_asic(struct RxDesc *desc)
 {
        u32 eor = le32_to_cpu(desc->opts1) & RingEnd;
@@ -5312,11 +5300,13 @@ static void rtl8169_rx_clear(struct rtl8169_private *tp)
 {
        unsigned int i;
 
-       for (i = 0; i < NUM_RX_DESC; i++) {
-               if (tp->Rx_databuff[i]) {
-                       rtl8169_free_rx_databuff(tp, tp->Rx_databuff + i,
-                                           tp->RxDescArray + i);
-               }
+       for (i = 0; i < NUM_RX_DESC && tp->Rx_databuff[i]; i++) {
+               dma_unmap_page(tp_to_dev(tp),
+                              le64_to_cpu(tp->RxDescArray[i].addr),
+                              R8169_RX_BUF_SIZE, DMA_FROM_DEVICE);
+               __free_pages(tp->Rx_databuff[i], get_order(R8169_RX_BUF_SIZE));
+               tp->Rx_databuff[i] = NULL;
+               rtl8169_make_unusable_by_asic(tp->RxDescArray + i);
        }
 }
 
-- 
2.22.0