When EFI_EMBEDDED_FIRMWARE is enabled, and CRYPTO is not enabled, Kbuild gives the following warning: WARNING: unmet direct dependencies detected for CRYPTO_LIB_SHA256 Depends on [n]: CRYPTO [=n] Selected by [y]: - EFI_EMBEDDED_FIRMWARE [=y] && EFI [=y] This is because EFI_EMBEDDED_FIRMWARE selects CRYPTO_LIB_SHA256 without selecting or depending on CRYPTO, despite CRYPTO_LIB_SHA256 depending on CRYPTO. Signed-off-by: Julian Braha <julianbraha@xxxxxxxxx> --- drivers/firmware/efi/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 2c3dac5ecb36..f914da9845ac 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -248,6 +248,7 @@ endmenu config EFI_EMBEDDED_FIRMWARE bool depends on EFI + select CRYPTO select CRYPTO_LIB_SHA256 config UEFI_CPER -- 2.27.0