On Wed, May 12, 2021 at 06:00:16PM +0100, Alexandru Elisei wrote: > Hi Naresh, > > Thank you for the report! > > On 5/12/21 5:47 PM, Naresh Kamboju wrote: > > On Wed, 12 May 2021 at 20:22, Greg Kroah-Hartman > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > >> This is the start of the stable review cycle for the 5.4.119 release. > >> There are 244 patches in this series, all will be posted as a response > >> to this one. If anyone has any issues with these being applied, please > >> let me know. > >> > >> Responses should be made by Fri, 14 May 2021 14:47:09 +0000. > >> Anything received after that time might be too late. > >> > >> The whole patch series can be found in one patch at: > >> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.4.119-rc1.gz > >> or in the git tree and branch at: > >> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y > >> and the diffstat can be found below. > >> > >> thanks, > >> > >> greg k-h > > Build regression detected. > > > >> Alexandru Elisei <alexandru.elisei@xxxxxxx> > >> KVM: arm64: Initialize VCPU mdcr_el2 before loading it > > stable rc 5.4 arm axm55xx_defconfig builds failed due to these > > warnings / errors. > > - arm (axm55xx_defconfig) with gcc-8,9 and 10 failed > > > > arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_vcpu_first_run_init': > > arch/arm/kvm/../../../virt/kvm/arm/arm.c:582:2: error: implicit > > declaration of function 'kvm_arm_vcpu_init_debug'; did you mean > > 'kvm_arm_init_debug'? [-Werror=implicit-function-declaration] > > kvm_arm_vcpu_init_debug(vcpu); > > ^~~~~~~~~~~~~~~~~~~~~~~ > > kvm_arm_init_debug > > cc1: some warnings being treated as errors > > This is my fault, in Linux v5.4 KVM for arm is still around, and there's no > prototype for the function when compiling for arm. I suspect that's also the case > for v4.19. > Correct. Guenter > I made this change to get it to build: > > $ git diff > diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h > index dd03d5e01a94..32564b017ba0 100644 > --- a/arch/arm/include/asm/kvm_host.h > +++ b/arch/arm/include/asm/kvm_host.h > @@ -335,6 +335,7 @@ static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, > int cpu) {} > static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {} > > static inline void kvm_arm_init_debug(void) {} > +static inline void kvm_arm_vcpu_init_debug(struct kvm_vcpu *vcpu) {} > static inline void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) {} > static inline void kvm_arm_clear_debug(struct kvm_vcpu *vcpu) {} > static inline void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) {} > > which matches the stub for kvm_arm_init_debug(). I can spin a patch out of it and > send it for 5.4 and 4.19. Marc, what do you think? > > Thanks, > > Alex > > > > > > > steps to reproduce: > > -------------------- > > #!/bin/sh > > > > # TuxMake is a command line tool and Python library that provides > > # portable and repeatable Linux kernel builds across a variety of > > # architectures, toolchains, kernel configurations, and make targets. > > # > > # TuxMake supports the concept of runtimes. > > # See https://docs.tuxmake.org/runtimes/, for that to work it requires > > # that you install podman or docker on your system. > > # > > # To install tuxmake on your system globally: > > # sudo pip3 install -U tuxmake > > # > > # See https://docs.tuxmake.org/ for complete documentation. > > > > > > tuxmake --runtime podman --target-arch arm --toolchain gcc-8 --kconfig > > axm55xx_defconfig > > > > ref: > > https://builds.tuxbuild.com/1sRT0HOyHnZ8N5ktJmaEcMIQZL0/ > > > > > > -- > > Linaro LKFT > > https://lkft.linaro.org
