This is a note to let you know that I've just added the patch titled
tty: hvc: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
to the 5.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tty-hvc-fix-link-error-with-config_serial_core_conso.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5795a26c2fdca24f4a1be762fa979b4448f90bc0
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Sat Sep 19 14:35:35 2020 +0800
tty: hvc: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n
[ Upstream commit 75fc65079d8253e1c25a5f8348111a85d71e0f01 ]
aarch64-linux-gnu-ld: drivers/tty/hvc/hvc_dcc.o: in function `dcc_early_write':
hvc_dcc.c:(.text+0x164): undefined reference to `uart_console_write'
The driver uses the uart_console_write(), but SERIAL_CORE_CONSOLE is not
selected, so uart_console_write is not defined, then we get the error.
Fix this by selecting SERIAL_CORE_CONSOLE.
Fixes: d1a1af2cdf19 ("hvc: dcc: Add earlycon support")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200919063535.2809707-1-yangyingliang@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig
index d1b27b0522a3c..8d60e0ff67b4d 100644
--- a/drivers/tty/hvc/Kconfig
+++ b/drivers/tty/hvc/Kconfig
@@ -81,6 +81,7 @@ config HVC_DCC
bool "ARM JTAG DCC console"
depends on ARM || ARM64
select HVC_DRIVER
+ select SERIAL_CORE_CONSOLE
help
This console uses the JTAG DCC on ARM to create a console under the HVC
driver. This console is used through a JTAG only on ARM. If you don't have
