On Fri, 06 Nov 2020, Greg Kroah-Hartman wrote: > On Fri, Nov 06, 2020 at 10:16:46AM +0000, Lee Jones wrote: > > On Fri, 06 Nov 2020, Lee Jones wrote: > > > > > On Fri, 06 Nov 2020, Greg Kroah-Hartman wrote: > > > > > > > On Wed, Nov 04, 2020 at 07:35:26PM +0000, Lee Jones wrote: > > > > > Fixes the following W=1 kernel build warning(s): > > > > > > > > > > drivers/tty/serial/8250/8250_port.c:349:14: warning: no previous prototype for ‘au_serial_in’ [-Wmissing-prototypes] > > > > > drivers/tty/serial/8250/8250_port.c:359:6: warning: no previous prototype for ‘au_serial_out’ [-Wmissing-prototypes] > > > > > > > > > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > > > > Cc: Jiri Slaby <jirislaby@xxxxxxxxxx> > > > > > Cc: Mike Hudson <Exoray@xxxxxxx> > > > > > Cc: linux-serial@xxxxxxxxxxxxxxx > > > > > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> > > > > > --- > > > > > drivers/tty/serial/8250/8250_port.c | 4 ++-- > > > > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > > > > > And now I get build errors of: > > > > ld: drivers/tty/serial/8250/8250_early.o: in function `early_au_setup': > > > > 8250_early.c:(.init.text+0x7): undefined reference to `au_serial_in' > > > > ld: 8250_early.c:(.init.text+0xf): undefined reference to `au_serial_out' > > > > make: *** [Makefile:1164: vmlinux] Error 1 > > > > > > > > > > I *always* test build my sets before posting. > > > > > > /investigating > > > > What config failed for you? > > > > It looks as though SERIAL_8250_CONSOLE is a bool and doesn't appear to > > be compiled with allmodconfig builds for any architecture that I test > > against (Arm, Arm64, MIPS, PPC, x86). > > I build on x86, and here's what I have set: > > CONFIG_SERIAL_EARLYCON=y > CONFIG_SERIAL_8250=y > CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y > CONFIG_SERIAL_8250_PNP=y > CONFIG_SERIAL_8250_16550A_VARIANTS=y > CONFIG_SERIAL_8250_FINTEK=y > CONFIG_SERIAL_8250_CONSOLE=y > CONFIG_SERIAL_8250_DMA=y > CONFIG_SERIAL_8250_PCI=y > CONFIG_SERIAL_8250_EXAR=y > CONFIG_SERIAL_8250_NR_UARTS=16 > CONFIG_SERIAL_8250_RUNTIME_UARTS=8 > CONFIG_SERIAL_8250_EXTENDED=y > # CONFIG_SERIAL_8250_MANY_PORTS is not set > # CONFIG_SERIAL_8250_SHARE_IRQ is not set > # CONFIG_SERIAL_8250_DETECT_IRQ is not set > # CONFIG_SERIAL_8250_RSA is not set > CONFIG_SERIAL_8250_DWLIB=y > CONFIG_SERIAL_8250_DW=m > CONFIG_SERIAL_8250_RT288X=y > CONFIG_SERIAL_8250_UNIPHIER=m > CONFIG_SERIAL_8250_LPSS=y > CONFIG_SERIAL_8250_MID=y > CONFIG_SERIAL_8250_TEGRA=m Is that from the default defconfig? Or something bespoke? -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog