[PATCH 4.19 184/191] ARM: samsung: fix PM debug build with DEBUG_LL but !MMU

From: Greg Kroah-Hartman
Date: Tue Nov 03 2020 - 16:18:49 EST


From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>

commit 7be0d19c751b02db778ca95e3274d5ea7f31891c upstream.

Selecting CONFIG_SAMSUNG_PM_DEBUG (depending on CONFIG_DEBUG_LL) but
without CONFIG_MMU leads to build errors:

arch/arm/plat-samsung/pm-debug.c: In function ‘s3c_pm_uart_base’:
arch/arm/plat-samsung/pm-debug.c:57:2: error:
implicit declaration of function ‘debug_ll_addr’ [-Werror=implicit-function-declaration]

Fixes: 99b2fc2b8b40 ("ARM: SAMSUNG: Use debug_ll_addr() to get UART base address")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200910154150.3318-1-krzk@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
arch/arm/plat-samsung/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -240,6 +240,7 @@ config SAMSUNG_PM_DEBUG
bool "Samsung PM Suspend debug"
depends on PM && DEBUG_KERNEL
depends on DEBUG_EXYNOS_UART || DEBUG_S3C24XX_UART || DEBUG_S3C2410_UART
+ depends on DEBUG_LL && MMU
help
Say Y here if you want verbose debugging from the PM Suspend and
Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>