Re: [PATCH] bgmac: ratelimit warning messages

On my test environment the troughput of a file transfer drops from
4.4Mbps to 116Kbps due the number of repeated warning messages.
Adding printk_ratelimit() solves the issue without removing the
warning message.

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
---
 drivers/net/ethernet/broadcom/bgmac.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 676ffe0..d1a259b 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c

@@ -302,7 +302,7 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
        slot->skb = skb;
        slot->dma_addr = dma_addr;

-       if (slot->dma_addr & 0xC0000000)
+       if ((slot->dma_addr & 0xC0000000) && printk_ratelimit())
                bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");

        return 0;