diff mbox series

KVM: allow disabling -Werror

Message ID 1582883764-26125-1-git-send-email-pbonzini@redhat.com (mailing list archive)
State New, archived
Headers show
Series KVM: allow disabling -Werror | expand

Commit Message

Paolo Bonzini Feb. 28, 2020, 9:56 a.m. UTC 
Restrict -Werror to well-tested configurations and allow disabling it
via Kconfig.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/Kconfig  | 13 +++++++++++++
 arch/x86/kvm/Makefile |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 991019d5eee1..1bb4927030af 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -59,6 +59,19 @@  config KVM
 
 	  If unsure, say N.
 
+config KVM_WERROR
+	bool "Compile KVM with -Werror"
+	# KASAN may cause the build to fail due to larger frames
+	default y if X86_64 && !KASAN
+	# We use the dependency on !COMPILE_TEST to not be enabled
+	# blindly in allmodconfig or allyesconfig configurations
+	depends on (X86_64 && !KASAN) || !COMPILE_TEST
+	depends on EXPERT
+	help
+	  Add -Werror to the build flags for (and only for) i915.ko.
+
+	  If in doubt, say "N".
+
 config KVM_INTEL
 	tristate "KVM for Intel (and compatible) processors support"
 	depends on KVM && IA32_FEAT_CTL
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 4654e97a05cc..e553f0fdd87d 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -1,7 +1,7 @@ 
 # SPDX-License-Identifier: GPL-2.0
 
 ccflags-y += -Iarch/x86/kvm
-ccflags-y += -Werror
+ccflags-$(CONFIG_KVM_WERROR) += -Werror
 
 KVM := ../../../virt/kvm