On 15/09/2022 21:40, Mikhail Rudenko wrote: > > Hi Krzysztof, > > On 2022-09-12 at 12:56 +02, Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote: >> On 11/09/2022 22:01, Mikhail Rudenko wrote: >>> +static const struct i2c_device_id ov4689_id[] = { >>> + { "ov4689", 0 }, >>> + {}, >>> +}; >>> +MODULE_DEVICE_TABLE(i2c, ov4689_id); >>> + >>> +static const struct of_device_id ov4689_of_match[] = { >>> + { .compatible = "ovti,ov4689" }, >>> + {}, >>> +}; >>> +MODULE_DEVICE_TABLE(of, ov4689_of_match); >>> + >>> +static struct i2c_driver ov4689_i2c_driver = { >>> + .driver = { >>> + .name = "ov4689", >>> + .pm = &ov4689_pm_ops, >>> + .of_match_table = of_match_ptr(ov4689_of_match), >> >> of_match_ptr is usually paired with maybe_unused, otherwise you will >> have compile test warnings. > > I see. I think we could also use `#if IS_ENABLED(CONFIG_OF)` around > `ov4689_of_match` and the corresponding `MODULE_DEVICE_TABLE`. Is it > appropriate here? Would work, but ifdefs are not nice. Just use maybe_unused. Warnings should disappear. Best regards, Krzysztof