This is a note to let you know that I've just added the patch titled
tty: goldfish: Enable 'earlycon' only if built-in
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: tty-goldfish-enable-earlycon-only-if-built-in.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Thu Mar 22 14:26:48 CET 2018
From: Sebastian Andrzej Siewior bigeasy@linutronix.de Date: Thu, 30 Nov 2017 09:16:31 +0100 Subject: tty: goldfish: Enable 'earlycon' only if built-in
From: Sebastian Andrzej Siewior bigeasy@linutronix.de
[ Upstream commit 6a28fd2bbc94bfca105632e5ef8a9dbe63ba0b39 ]
Commit 3840ed9548f7 ("tty: goldfish: Implement support for kernel 'earlycon' parameter") breaks an allmodconfig config on x86: | LD vmlinux.o | MODPOST vmlinux.o |drivers/tty/serial/earlycon.o: In function `parse_options': |drivers/tty/serial/earlycon.c:97: undefined reference to `uart_parse_earlycon' |Makefile:1005: recipe for target 'vmlinux' failed
earlycon.c::parse_options() invokes uart_parse_earlycon() from serial_core.c which is compiled=m because GOLDFISH_TTY itself (and most others) are =m. To avoid that, I'm adding the _CONSOLE config option which is selected if the GOLDFISH module itself is =y since it doesn't need the early bits for the =m case (other drivers do the same dance). The alternative would be to move uart_parse_earlycon() from serial_core.c to earlycon.c (we don't have that many users of that function).
Fixes: 3840ed9548f7 ("tty: goldfish: Implement support for kernel 'earlycon' parameter") Signed-off-by: Sebastian Andrzej Siewior bigeasy@linutronix.de Reviewed-by: Miodrag Dinic miodrag.dinic@mips.com Acked-by: Miodrag Dinic miodrag.dinic@mips.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/Kconfig | 6 +++++- drivers/tty/goldfish.c | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -394,10 +394,14 @@ config GOLDFISH_TTY depends on GOLDFISH select SERIAL_CORE select SERIAL_CORE_CONSOLE - select SERIAL_EARLYCON help Console and system TTY driver for the Goldfish virtual platform.
+config GOLDFISH_TTY_EARLY_CONSOLE + bool + default y if GOLDFISH_TTY=y + select SERIAL_EARLYCON + config DA_TTY bool "DA TTY" depends on METAG_DA --- a/drivers/tty/goldfish.c +++ b/drivers/tty/goldfish.c @@ -442,6 +442,7 @@ static int goldfish_tty_remove(struct pl return 0; }
+#ifdef CONFIG_GOLDFISH_TTY_EARLY_CONSOLE static void gf_early_console_putchar(struct uart_port *port, int ch) { __raw_writel(ch, port->membase); @@ -465,6 +466,7 @@ static int __init gf_earlycon_setup(stru }
OF_EARLYCON_DECLARE(early_gf_tty, "google,goldfish-tty", gf_earlycon_setup); +#endif
static const struct of_device_id goldfish_tty_of_match[] = { { .compatible = "google,goldfish-tty", },
Patches currently in stable-queue which might be from bigeasy@linutronix.de are
queue-4.14/tty-goldfish-enable-earlycon-only-if-built-in.patch