Subject: [PATCH] s390/certstore: select CRYPTO_LIB_SHA256

From: Sven Schnelle <[email-masked]>
Date: Fri, 28 Jul 2023 12:04:30 +0200

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 <[email-masked]>
Closes: https://lore.kernel.org/all/[email-masked]/
Signed-off-by: Sven Schnelle <[email-masked]>
---
 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