[U-Boot] [PATCH 1/5] env: allow undefined CONFIG_SYS_MMC_ENV_DEV

So far we are required to always define the CONFIG_SYS_MMC_ENV_DEV variable, even if a platform specific function overrides the weak function that is using it.

Check for the existence of this Kconfig variable, eliminating the need to define a dummy value.

Signed-off-by: Andre Przywara andre.przywara@arm.com --- env/mmc.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/env/mmc.c b/env/mmc.c index c3cf35d01b..122fec3af8 100644 --- a/env/mmc.c +++ b/env/mmc.c @@ -124,7 +124,11 @@ __weak int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr)

__weak int mmc_get_env_dev(void) { +#ifdef CONFIG_SYS_MMC_ENV_DEV return CONFIG_SYS_MMC_ENV_DEV; +#else + return 0; +#endif }

#ifdef CONFIG_SYS_MMC_ENV_PART