Keep earlycon related symbols only when CONFIG_SERIAL_EARLYCON is enabled and the driver is built-in. This will be helpful to clean up ifdefs surrounding earlycon code in serial drivers.
Signed-off-by: Masahiro Yamada <[email protected]> --- include/linux/serial_core.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index a3d7c0d..2f44e20 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -352,9 +352,15 @@ struct earlycon_id { extern const struct earlycon_id __earlycon_table[]; extern const struct earlycon_id __earlycon_table_end[]; +#if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE) +#define EARLYCON_USED_OR_UNUSED __used +#else +#define EARLYCON_USED_OR_UNUSED __maybe_unused +#endif + #define OF_EARLYCON_DECLARE(_name, compat, fn) \ static const struct earlycon_id __UNIQUE_ID(__earlycon_##_name) \ - __used __section(__earlycon_table) \ + EARLYCON_USED_OR_UNUSED __section(__earlycon_table) \ = { .name = __stringify(_name), \ .compatible = compat, \ .setup = fn } -- 1.9.1
