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Subject[PATCH net-next 7/7] r8169: fix could not dump registers
Date
For new version of Fedora and Ubuntu, we see all 0xff when dumping
the hw regs through ethtool. Using a loop to read registers could
fix it.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
---
drivers/net/ethernet/realtek/r8169.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 876e088..c9cd64c 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1889,12 +1889,16 @@ static void rtl8169_get_regs(struct net_device *dev, struct ethtool_regs *regs,
void *p)
{
struct rtl8169_private *tp = netdev_priv(dev);
+ void __iomem *ioaddr = tp->mmio_addr;
+ u8 *d = (u8 *)p;
+ int i;

if (regs->len > R8169_REGS_SIZE)
regs->len = R8169_REGS_SIZE;

rtl_lock_work(tp);
- memcpy_fromio(p, tp->mmio_addr, regs->len);
+ for (i = 0; i < regs->len; i++)
+ *d++ = RTL_R8(i);
rtl_unlock_work(tp);
}

--
1.8.1


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