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Commitaccb757d79("KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_run", 2017-12-04) added a "goto out" statement and an "out:" label to kvm_arch_vcpu_ioctl_run(). Since the only "goto out" is inside a CONFIG_VSX block, compiling with CONFIG_VSX=n gives a warning that label "out" is defined but not used, and because arch/powerpc is compiled with -Werror, that becomes a compile error that makes the kernel build fail. Merge commit1ab03c072f("Merge tag 'kvm-ppc-next-4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc", 2018-02-09) added a similar block of code inside a #ifdef CONFIG_ALTIVEC, with a "goto out" statement. In order to make the build succeed, this adds a #ifdef around the "out:" label. This is a minimal, ugly fix, to be replaced later by a refactoring of the code. Since CONFIG_VSX depends on CONFIG_ALTIVEC, it is sufficient to use #ifdef CONFIG_ALTIVEC here. Fixes:accb757d79("KVM: Move vcpu_load to arch-specific kvm_arch_vcpu_ioctl_run") Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.