diff options
| author |   John Efstathiades <john.efstathiades@pebblebay.com> | 2021-08-24 19:56:13 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-08-25 10:55:43 +0100 |
| commit | df0d6f7a342cd8e4fad1dff4ca262462300223f7 (patch) | |
| tree | 0d8a5befb242085cfc6119813126d9cfa89244d7 /drivers/net/usb/lan78xx.c | |
| parent | lan78xx: Fix race condition in disconnect handling (diff) | |
| download | linux-dev-df0d6f7a342cd8e4fad1dff4ca262462300223f7.tar.xz linux-dev-df0d6f7a342cd8e4fad1dff4ca262462300223f7.zip | |
lan78xx: Limit number of driver warning messages
Device removal can result in a large burst of driver warning messages
(20 - 30) sent to the kernel log. Most of these are register read/write
failures.
This change limits the rate at which these messages are emitted.
Signed-off-by: John Efstathiades <john.efstathiades@pebblebay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/lan78xx.c')
| -rw-r--r-- | drivers/net/usb/lan78xx.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 4ec752d9751a..793f8fbe0069 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -462,7 +462,7 @@ static int lan78xx_read_reg(struct lan78xx_net *dev, u32 index, u32 *data) if (likely(ret >= 0)) { le32_to_cpus(buf); *data = *buf; - } else { + } else if (net_ratelimit()) { netdev_warn(dev->net, "Failed to read register index 0x%08x. ret = %d", index, ret); @@ -492,7 +492,8 @@ static int lan78xx_write_reg(struct lan78xx_net *dev, u32 index, u32 data) USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0, index, buf, 4, USB_CTRL_SET_TIMEOUT); - if (unlikely(ret < 0)) { + if (unlikely(ret < 0) && + net_ratelimit()) { netdev_warn(dev->net, "Failed to write register index 0x%08x. ret = %d", index, ret); |