A build failure was reported when sha256() is not present:
gcc-13.1.0-nolibc/s390-linux/bin/s390-linux-ld: arch/s390/kernel/cert_store.o: in function `check_certificate_hash':
arch/s390/kernel/cert_store.c:267: undefined reference to `sha256'
Therefore make CONFIG_CERT_STORE select CRYPTO_LIB_SHA256.
Fixes: 8cf57d7217c3 ("s390: add support for user-defined certificates")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Closes: https://lore.kernel.org/all/8ecb57fb-4560-bdfc-9e55-63e3b0937132@xxxxxxxxxxxxx/
Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxx>
---
arch/s390/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d9d50a7a2016..18bf754e1fad 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -516,6 +516,7 @@ config KEXEC_SIG
config CERT_STORE
bool "Get user certificates via DIAG320"
depends on KEYS
+ select CRYPTO_LIB_SHA256
help
Enable this option if you want to access user-provided secure boot
certificates via DIAG 0x320.
--
2.39.2
