[RFC 02/11] i2c: add quirk checks to core

Wolfram Sang wsa at the-dreams.de
Tue Feb 24 06:25:24 PST 2015


On Mon, Jan 12, 2015 at 12:08:14PM +0000, Russell King - ARM Linux wrote:
> On Fri, Jan 09, 2015 at 06:21:32PM +0100, Wolfram Sang wrote:
> > +static int i2c_quirk_error(struct i2c_adapter *adap, struct i2c_msg *msg, char *err_msg)
> > +{
> > +	dev_err(&adap->dev, "quirk: %s (addr 0x%04x, size %u)\n", err_msg, msg->addr, msg->len);
> > +	return -EOPNOTSUPP;
> > +}
> 
> So, what happens if I open an I2C adapter, find a message which causes
> i2c_quirk_error() to be called, and then spin repeatedly calling that...
> Shouldn't there be some rate limiting to this?

Can be argued. Changed to dev_err_ratelimited(). Thanks!

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