Messages in this thread | | | Date | Sat, 7 Mar 2015 00:27:46 +0100 | Subject | Re: [PATCH] bgmac: ratelimit warning messages | From | Rafał Miłecki <> |
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On 6 March 2015 at 19:17, Peter Senna Tschudin <peter.senna@gmail.com> wrote: > 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;
Nack. Please just drop this code.
From what I understand network works for you. I've also checked Broadcom's open source code, and on SoC we can always safely write whole low 32b.
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