linux-kernel - [PATCH 3/3] s390: Drop unnecessary CONFIG_IMA_SECURE_AND_OR_TRUSTED

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Message-ID: <20260115004328.194142-4-coxu@redhat.com>
Date: Thu, 15 Jan 2026 08:43:25 +0800
From: Coiby Xu <coxu@...hat.com>
To: linux-integrity@...r.kernel.org
Cc: Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	linux-s390@...r.kernel.org (open list:S390 ARCHITECTURE),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 3/3] s390: Drop unnecessary CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT

Commit b5ca117365d9 ("ima: prevent kexec_load syscall based on runtime
secureboot flag") and commit 268a78404973 ("s390/kexec_file: Disable
kexec_load when IPLed secure") disabled the kexec_load syscall based
on the secureboot mode. Commit 9e2b4be377f0 ("ima: add a new CONFIG
for loading arch-specific policies") needed to detect the secure boot
mode, not to load an IMA architecture specific policy. Since there is
the new CONFIG_INTEGRITY_SECURE_BOOT, drop
CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT for s390.

Signed-off-by: Coiby Xu <coxu@...hat.com>
---
 arch/s390/Kconfig           | 1 -
 arch/s390/kernel/Makefile   | 1 -
 arch/s390/kernel/ima_arch.c | 8 --------
 3 files changed, 10 deletions(-)
 delete mode 100644 arch/s390/kernel/ima_arch.c

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index db0383b19493..1095536c84a3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -77,7 +77,6 @@ config S390
 	#
 	# Note: keep this list sorted alphabetically
 	#
-	imply IMA_SECURE_AND_OR_TRUSTED_BOOT
 	imply INTEGRITY_SECURE_BOOT
 	select ALTERNATE_USER_ADDRESS_SPACE
 	select ARCH_32BIT_USTAT_F_TINODE
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index ee976a27e677..00a74dd15d16 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -71,7 +71,6 @@ obj-$(CONFIG_STACKPROTECTOR)	+= stackprotector.o
 obj-$(CONFIG_KEXEC_FILE)	+= machine_kexec_file.o kexec_image.o
 obj-$(CONFIG_KEXEC_FILE)	+= kexec_elf.o
 obj-$(CONFIG_CERT_STORE)	+= cert_store.o
-obj-$(CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT)	+= ima_arch.o
 obj-$(CONFIG_INTEGRITY_SECURE_BOOT)	+= integrity_sb_arch.o
 
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o
diff --git a/arch/s390/kernel/ima_arch.c b/arch/s390/kernel/ima_arch.c
deleted file mode 100644
index 6ccbe34ce408..000000000000
--- a/arch/s390/kernel/ima_arch.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <linux/ima.h>
-
-const char * const *arch_get_ima_policy(void)
-{
-	return NULL;
-}
-- 
2.52.0