linux-kernel - compilation failure with CONFIG_VFIO_PCI

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Date:   Wed, 2 Jan 2019 08:37:08 -0800
From:   Laura Abbott <labbott@...hat.com>
To:     Alex Williamson <alex.williamson@...hat.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     kvm@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: compilation failure with CONFIG_VFIO_PCI_NVLINK2

Hi,

I got a compilation failure when building with CONFIG_VFIO_PCI_NVLINK2
enabled:

+ make -s 'HOSTCFLAGS=-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mcpu=power8 -mtune=power8 -fasynchronous-unwind-tables -fstack-clash-protection' 'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,--build-id=uuid' ARCH=powerpc -j4 modules
BUILDSTDERR: In file included from drivers/vfio/pci/trace.h:102,
BUILDSTDERR:                  from drivers/vfio/pci/vfio_pci_nvlink2.c:29:
BUILDSTDERR: ./include/trace/define_trace.h:89:42: fatal error: ./trace.h: No such file or directory
BUILDSTDERR:  #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
BUILDSTDERR:                                           ^
BUILDSTDERR: compilation terminated.
BUILDSTDERR: make[3]: *** [scripts/Makefile.build:277: drivers/vfio/pci/vfio_pci_nvlink2.o] Error 1
BUILDSTDERR: make[2]: *** [scripts/Makefile.build:492: drivers/vfio/pci] Error 2
BUILDSTDERR: make[1]: *** [scripts/Makefile.build:492: drivers/vfio] Error 2
BUILDSTDERR: make: *** [Makefile:1053: drivers] Error 2
BUILDSTDERR: make: *** Waiting for unfinished jobs....

I don't know enough about ftrace building to make a guess here.
Config is attacked.

Also, would it be possible to switch this option from def_bool to
bool? I can't turn it off directly when it's def_bool.

Thanks,
Laura

View attachment "kernel-4.21.0-ppc64le.config" of type "text/plain" (166961 bytes)