mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-14 09:25:12 +00:00
f8c3686c65
If a driver exposes early consoles with EARLYCON_DECLARE() and OF_EARLYCON_DECLARE(), pefer the non-OF variant if the user specifies it by earlycon=<driver>,<options> The rationale behind this is that some drivers register multiple setup functions under the same driver name. Eg. OF_EARLYCON_DECLARE(lpuart, "fsl,vf610-lpuart", lpuart_early_console_setup); OF_EARLYCON_DECLARE(lpuart32, "fsl,ls1021a-lpuart", lpuart32_early_console_setup); OF_EARLYCON_DECLARE(lpuart32, "fsl,imx7ulp-lpuart", lpuart32_imx_early_console_setup); EARLYCON_DECLARE(lpuart, lpuart_early_console_setup); EARLYCON_DECLARE(lpuart32, lpuart32_early_console_setup); It depends on the order of the entries which console_setup() actually gets called. To make things worse, I guess it also depends on the compiler how these are ordered. Thus always prefer the EARLYCON_DECLARE() ones. Signed-off-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20200220174607.24285-1-michael@walle.cc Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>