Re: [PATCH 2/2] serial: cpm_uart: Fix a COMPILE_TEST dependency

From: Jiri Slaby
Date: Tue May 23 2023 - 03:53:33 EST


On 22. 05. 23, 10:20, Herve Codina wrote:
In a COMPILE_TEST configuration, the cpm_uart driver uses symbols from
the cpm_uart_cpm2.c file. This file is compiled only when CONFIG_CPM2 is
set.

Without this dependency, the linker fails with some missing symbols for
COMPILE_TEST configuration that needs SERIAL_CPM without enabling CPM2.

Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/oe-kbuild-all/202305160221.9XgweObz-lkp@xxxxxxxxx/
Fixes: e3e7b13bffae ("serial: allow COMPILE_TEST for some drivers")
---
drivers/tty/serial/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 625358f44419..68a9d9db9144 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -769,7 +769,7 @@ config SERIAL_PMACZILOG_CONSOLE
config SERIAL_CPM
tristate "CPM SCC/SMC serial port support"
- depends on CPM2 || CPM1 || (PPC32 && COMPILE_TEST)
+ depends on CPM2 || CPM1 || (PPC32 && CPM2 && COMPILE_TEST)

Actually, does this makes sense? I mean, the last part after "||" is now superfluous and doesn't help anything, right?

select SERIAL_CORE
help
This driver supports the SCC and SMC serial ports on Motorola

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