From 47723de8d7555edf774aad543f92f930736d204f Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 16 Sep 2022 21:53:09 +0200
Subject: [PATCH] ARM: disallow PCI with MMU=n again
My cleanup patch allowed enabling PCI on MMU-less builds,
which breaks for at least one driver and is never required:
In file included from include/linux/irqchip/arm-gic-v3.h:604,
from drivers/pci/controller/pcie-iproc.c:17:
arch/arm/include/asm/arch_gicv3.h: In function 'write_ICC_EOIR1_EL1':
arch/arm/include/asm/arch_gicv3.h:44:9: error: implicit declaration of function 'write_sysreg' [-Werror=implicit-function-declaration]
Fixes: 6fd09c9afa49 ("ARM: Kconfig: clean up platform selection")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e28e3d09d97d7..4edb6b4a87c44 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -110,7 +110,7 @@ config ARM
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select HAVE_OPTPROBES if !THUMB2_KERNEL
- select HAVE_PCI
+ select HAVE_PCI if MMU
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
--
2.30.2