On Mon, Mar 02, 2020 at 08:35:12PM +0300, Dmitry Osipenko wrote: > The I2C timeout error message doesn't tell us what exactly failed and some > I2C client drivers do not clarify the error either. Adding WARN_ON_ONCE() > results in a stacktrace being dumped into KMSG, which is very useful for > debugging purposes. This is good for debugging, in deed, yet not good in the generic case. Timeouts are not an exception on the I2C bus (think of an EEPROM which is busy during an erase cycle), so it shouldn't be printed at all. This prinout should rather be dropped or at least be dev_dbg.
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