> > > https://lore.kernel.org/lkml/20191121135743.GA552517@xxxxxxxxx/ > > > > Huh? This renders WARN completely useless, or? If somebody wants panic > > on warn, this person should get it? > > I also have my doubts... Good to know :) > What other information will you have in the backtrace, that you don't have > available inside the function? > Would printing the i2c_driver name be sufficient? Yes, but we don't have the client struct, only the adapter and the address: +static int i2c_scan_for_client(struct i2c_adapter *adap, unsigned short addr, + int (*probe)(struct i2c_adapter *adap, unsigned short addr)) And even if we had the client struct, it would be empty because for most cases scanning happens before binding to the driver. We don't even have the name/type in case of i2c_detect().
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