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KVM: allow disabling -Werror

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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>
This commit is contained in:
Paolo Bonzini 2020-02-28 10:42:31 +01:00
parent 575b255c16
commit 4f337faf1c
2 changed files with 14 additions and 1 deletions
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13
arch/x86/kvm/Kconfig
View file

@ -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

2
arch/x86/kvm/Makefile
View file

@ -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