# git rev-parse -q --verify 068aab8579e79acdbe6b79868a065ac10beabbc5^{commit}
068aab8579e79acdbe6b79868a065ac10beabbc5
already have revision, skipping fetch
# git checkout -q -f -B kisskb 068aab8579e79acdbe6b79868a065ac10beabbc5
# git clean -qxdf
# git log -1
commit 068aab8579e79acdbe6b79868a065ac10beabbc5
Author: Reza Arbab <arbab@linux.vnet.ibm.com>
Date:   Mon Jan 16 13:07:46 2017 -0600

    powerpc/mm: Unstub radix__vmemmap_remove_mapping()
    
    Use remove_pagetable() and friends for radix vmemmap removal.
    
    We do not require the special-case handling of vmemmap done in the x86
    versions of these functions. This is because vmemmap_free() has already
    freed the mapped pages, and calls us with an aligned address range.
    
    So, add a few failsafe WARNs, but otherwise the code to remove physical
    mappings is already sufficient for vmemmap.
    
    Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
    Acked-by: Balbir Singh <bsingharora@gmail.com>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 068aab8579e79acdbe6b79868a065ac10beabbc5
# < make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  pseries_le_defconfig
# make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/powerpc/include/generated/asm/clkdev.h
  WRAP    arch/powerpc/include/generated/asm/div64.h
  WRAP    arch/powerpc/include/generated/asm/export.h
  WRAP    arch/powerpc/include/generated/asm/irq_regs.h
  WRAP    arch/powerpc/include/generated/asm/irq_work.h
  WRAP    arch/powerpc/include/generated/asm/local64.h
  WRAP    arch/powerpc/include/generated/asm/mcs_spinlock.h
  WRAP    arch/powerpc/include/generated/asm/preempt.h
  WRAP    arch/powerpc/include/generated/asm/rwsem.h
  WRAP    arch/powerpc/include/generated/asm/vtime.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  HOSTCC  scripts/basic/bin2c
  UPD     include/config/kernel.release
  Using /home/kisskb/slave/src as source for kernel
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/genksyms/genksyms.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/sortextable
  MKELF   scripts/mod/elfconfig.h
  GEN     scripts/mod/devicetable-offsets.h
  HOSTCC  scripts/mod/sumversion.o
  HOSTCC  scripts/dtc/livetree.o
  HOSTCC  scripts/dtc/treesource.o
  HOSTCC  scripts/dtc/srcpos.o
  HOSTCC  scripts/dtc/checks.o
  SHIPPED scripts/genksyms/parse.tab.c
  SHIPPED scripts/genksyms/lex.lex.c
  SHIPPED scripts/genksyms/keywords.hash.c
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/dtc/util.o
  HOSTCC  scripts/mod/modpost.o
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/genksyms/lex.lex.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/powerpc/kernel/asm-offsets.s
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/genksyms/genksyms
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTLD  scripts/mod/modpost
  HOSTCC  usr/gen_init_cpio
  CC      init/main.o
  CHK     include/generated/compile.h
  CC      init/do_mounts.o
  CC      init/do_mounts_rd.o
  CC      init/do_mounts_initrd.o
  CC      init/do_mounts_md.o
  CC      init/initramfs.o
  UPD     include/generated/compile.h
  CC      arch/powerpc/mm/fault.o
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/kernel/cputable.o
  CC      arch/powerpc/lib/alloc.o
  GEN     usr/initramfs_data.cpio.gz
  AS      usr/initramfs_data.o
  LD      usr/built-in.o
  AS      arch/powerpc/lib/crtsavres.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/sysdev/mpic.o
  CC      arch/powerpc/lib/feature-fixups.o
  CC      init/init_task.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/kernel/syscalls.o
  CC      arch/powerpc/mm/mem.o
  CC      arch/powerpc/mm/pgtable.o
  CC      arch/powerpc/mm/mmap.o
  AS      arch/powerpc/lib/checksum_64.o
  CC      arch/powerpc/kernel/irq.o
  CC      arch/powerpc/lib/checksum_wrappers.o
  CC      arch/powerpc/platforms/powernv/setup.o
  AS      arch/powerpc/platforms/powernv/opal-wrappers.o
  CC      init/version.o
  CC      arch/powerpc/platforms/powernv/opal.o
  CC      arch/powerpc/platforms/powernv/opal-async.o
  CC      arch/powerpc/lib/sstep.o
  CC      arch/powerpc/mm/init_64.o
  CC      arch/powerpc/mm/pgtable_64.o
  LD      init/mounts.o
  LD      init/built-in.o
  CC      arch/powerpc/mm/init-common.o
  CC      arch/powerpc/sysdev/mpic_msi.o
  CC      arch/powerpc/sysdev/mpic_u3msi.o
  CC      arch/powerpc/sysdev/msi_bitmap.o
  CC      arch/powerpc/sysdev/i8259.o
  CC      arch/powerpc/sysdev/scom.o
  CC      arch/powerpc/platforms/powernv/idle.o
  CC      arch/powerpc/kernel/align.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/mm/pgtable-hash64.o
  CC      arch/powerpc/mm/hash_utils_64.o
  CC      arch/powerpc/platforms/powernv/opal-rtc.o
  CC      arch/powerpc/platforms/pseries/lpar.o
  CC      arch/powerpc/sysdev/xics/xics-common.o
  AS      arch/powerpc/lib/ldstfp.o
  CC      arch/powerpc/sysdev/xics/icp-native.o
  AS      arch/powerpc/lib/feature-fixups-test.o
  CC      arch/powerpc/kernel/pmc.o
  CC      arch/powerpc/lib/xor_vmx.o
  CC      arch/powerpc/sysdev/xics/icp-hv.o
  CC      arch/powerpc/platforms/powernv/opal-nvram.o
  AS      arch/powerpc/lib/copypage_64.o
  AS      arch/powerpc/mm/slb_low.o
  CC      arch/powerpc/mm/slb.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/kernel/process.o
  CC      arch/powerpc/mm/hash_native_64.o
  AS      arch/powerpc/lib/copyuser_64.o
  CC      arch/powerpc/lib/usercopy_64.o
  CC      arch/powerpc/platforms/powernv/opal-lpc.o
  CC      arch/powerpc/sysdev/xics/ics-rtas.o
  AS      arch/powerpc/lib/mem_64.o
  CC      arch/powerpc/mm/mmu_context_book3s64.o
  CC      arch/powerpc/mm/pgtable-book3s64.o
  AS      arch/powerpc/platforms/pseries/hvCall.o
  CC      arch/powerpc/platforms/pseries/nvram.o
  LD      arch/powerpc/math-emu/built-in.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  AS      arch/powerpc/lib/hweight_64.o
  CC      arch/powerpc/kernel/idle.o
  LD      arch/powerpc/crypto/built-in.o
  AS [M]  arch/powerpc/crypto/md5-asm.o
  CC [M]  arch/powerpc/crypto/md5-glue.o
  AS      arch/powerpc/lib/copyuser_power7.o
  CC      arch/powerpc/sysdev/xics/ics-opal.o
  CC      arch/powerpc/platforms/powernv/opal-flash.o
  AS      arch/powerpc/lib/string_64.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/platforms/pseries/reconfig.o
  CC      arch/powerpc/mm/pgtable-radix.o
  AS      arch/powerpc/lib/copypage_power7.o
  AS      arch/powerpc/lib/memcpy_power7.o
  AS      arch/powerpc/lib/memcpy_64.o
  AS [M]  arch/powerpc/crypto/sha1-powerpc-asm.o
  CC [M]  arch/powerpc/crypto/sha1.o
  CC      arch/powerpc/mm/tlb-radix.o
  CC      arch/powerpc/sysdev/xics/icp-opal.o
  AS      arch/powerpc/lib/memcmp_64.o
  CC      arch/powerpc/platforms/powernv/rng.o
  CC      arch/powerpc/lib/locks.o
  CC      arch/powerpc/lib/vmx-helper.o
  CC      arch/powerpc/platforms/powernv/opal-elog.o
  CC      arch/powerpc/platforms/pseries/of_helpers.o
  CC      arch/powerpc/platforms/pseries/setup.o
In file included from /home/kisskb/slave/src/include/linux/kernel.h:13:0,
                 from /home/kisskb/slave/src/include/linux/sched.h:17,
                 from /home/kisskb/slave/src/arch/powerpc/mm/pgtable-radix.c:11:
/home/kisskb/slave/src/arch/powerpc/mm/pgtable-radix.c: In function 'create_physical_mapping':
/home/kisskb/slave/src/include/linux/printk.h:299:2: error: 'mapping_size' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
  ^
/home/kisskb/slave/src/arch/powerpc/mm/pgtable-radix.c:123:22: note: 'mapping_size' was declared here
  unsigned long addr, mapping_size;
                      ^
  LD [M]  arch/powerpc/crypto/md5-ppc.o
  LD [M]  arch/powerpc/crypto/sha1-powerpc.o
  CC      arch/powerpc/platforms/powernv/opal-dump.o
  LD      arch/powerpc/sysdev/xics/built-in.o
  LD      arch/powerpc/sysdev/built-in.o
  LD      arch/powerpc/net/built-in.o
  CC      arch/powerpc/xmon/xmon.o
cc1: all warnings being treated as errors
  LD      arch/powerpc/lib/built-in.o
/home/kisskb/slave/src/scripts/Makefile.build:293: recipe for target 'arch/powerpc/mm/pgtable-radix.o' failed
make[2]: *** [arch/powerpc/mm/pgtable-radix.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/platforms/pseries/iommu.o
  CC      arch/powerpc/xmon/nonstdio.o
  AS      arch/powerpc/xmon/spr_access.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/kernel/time.o
  CC      arch/powerpc/platforms/powernv/opal-sysparam.o
  CC      arch/powerpc/platforms/powernv/opal-sensor.o
/home/kisskb/slave/src/Makefile:988: recipe for target 'arch/powerpc/mm' failed
make[1]: *** [arch/powerpc/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/platforms/powernv/opal-msglog.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/kernel/traps.o
  CC      arch/powerpc/platforms/powernv/opal-hmi.o
  CC      arch/powerpc/xmon/ppc-dis.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/platforms/pseries/event_sources.o
  CC      arch/powerpc/platforms/pseries/ras.o
  CC      arch/powerpc/platforms/pseries/firmware.o
  CC      arch/powerpc/platforms/powernv/opal-power.o
  CC      arch/powerpc/platforms/powernv/opal-irqchip.o
  CC      arch/powerpc/xmon/ppc-opc.o
  CC      arch/powerpc/platforms/powernv/opal-kmsg.o
  CC      arch/powerpc/kernel/udbg.o
  CC      arch/powerpc/platforms/pseries/power.o
  CC      arch/powerpc/platforms/pseries/dlpar.o
  CC      arch/powerpc/platforms/pseries/mobility.o
  CC      arch/powerpc/platforms/pseries/rng.o
  CC      arch/powerpc/platforms/pseries/pci.o
  CC      arch/powerpc/platforms/pseries/pci_dlpar.o
  CC      arch/powerpc/platforms/pseries/eeh_pseries.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/platforms/powernv/smp.o
  CC      arch/powerpc/platforms/pseries/msi.o
  CC      arch/powerpc/platforms/powernv/subcore.o
  AS      arch/powerpc/platforms/powernv/subcore-asm.o
  CC      arch/powerpc/platforms/pseries/smp.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/platforms/powernv/pci.o
  CC      arch/powerpc/platforms/powernv/pci-ioda.o
  CC      arch/powerpc/platforms/pseries/kexec.o
  CC      arch/powerpc/platforms/powernv/npu-dma.o
  CC      arch/powerpc/platforms/pseries/pseries_energy.o
  CC      arch/powerpc/platforms/pseries/hotplug-cpu.o
  CC      arch/powerpc/kernel/dma.o
  CC      arch/powerpc/platforms/pseries/hotplug-memory.o
  CC      arch/powerpc/platforms/powernv/pci-cxl.o
  CC      arch/powerpc/platforms/powernv/eeh-powernv.o
  CC      arch/powerpc/platforms/pseries/hvconsole.o
  AS      arch/powerpc/kernel/misc_64.o
  LD      arch/powerpc/xmon/built-in.o
  CC      arch/powerpc/platforms/pseries/cmm.o
  CC      arch/powerpc/platforms/powernv/opal-xscom.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      arch/powerpc/platforms/powernv/opal-tracepoints.o
  CC      arch/powerpc/kernel/prom_parse.o
  CC      arch/powerpc/platforms/pseries/dtl.o
  CC      arch/powerpc/kernel/setup_64.o
  CC      arch/powerpc/platforms/pseries/io_event_irq.o
  CC      arch/powerpc/kernel/sys_ppc32.o
  CC      arch/powerpc/kernel/signal_64.o
  CC      arch/powerpc/kernel/ptrace32.o
  CC      arch/powerpc/platforms/pseries/lparcfg.o
  CC      arch/powerpc/kernel/paca.o
  CC      arch/powerpc/platforms/pseries/vio.o
  CC      arch/powerpc/kernel/nvram_64.o
  LD      arch/powerpc/platforms/powernv/built-in.o
  CC      arch/powerpc/kernel/firmware.o
  CC      arch/powerpc/kernel/hw_breakpoint.o
  CC      arch/powerpc/platforms/pseries/suspend.o
  AS      arch/powerpc/kernel/cpu_setup_ppc970.o
  AS      arch/powerpc/kernel/cpu_setup_pa6t.o
  CC [M]  arch/powerpc/platforms/pseries/scanlog.o
  AS      arch/powerpc/kernel/cpu_setup_power.o
  CC [M]  arch/powerpc/platforms/pseries/hvcserver.o
  CC      arch/powerpc/kernel/mce.o
  CC      arch/powerpc/kernel/mce_power.o
  LDS     arch/powerpc/kernel/vdso64/vdso64.lds
  AS      arch/powerpc/kernel/vdso64/sigtramp.o
  AS      arch/powerpc/kernel/vdso64/gettimeofday.o
  AS      arch/powerpc/kernel/vdso64/datapage.o
  CC      arch/powerpc/kernel/vecemu.o
  AS      arch/powerpc/kernel/idle_book3s.o
  AS      arch/powerpc/kernel/vdso64/cacheflush.o
  AS      arch/powerpc/kernel/vdso64/note.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  AS      arch/powerpc/kernel/vdso64/getcpu.o
  VDSO64L arch/powerpc/kernel/vdso64/vdso64.so.dbg
  OBJCOPY arch/powerpc/kernel/vdso64/vdso64.so
  AS      arch/powerpc/kernel/vdso64/vdso64_wrapper.o
  LD      arch/powerpc/kernel/vdso64/built-in.o
  CC      arch/powerpc/kernel/rtas.o
  CC      arch/powerpc/kernel/rtas-rtc.o
  CC      arch/powerpc/kernel/rtas_pci.o
  CC      arch/powerpc/kernel/rtasd.o
  CC      arch/powerpc/kernel/rtas-proc.o
  CC      arch/powerpc/kernel/eeh.o
  CC      arch/powerpc/kernel/eeh_pe.o
  CC      arch/powerpc/kernel/eeh_dev.o
  CC      arch/powerpc/kernel/eeh_cache.o
  CC      arch/powerpc/kernel/eeh_driver.o
  CC      arch/powerpc/kernel/eeh_event.o
  LD      arch/powerpc/platforms/pseries/built-in.o
  LD      arch/powerpc/platforms/built-in.o
  CC      arch/powerpc/kernel/eeh_sysfs.o
  CC      arch/powerpc/kernel/module.o
  CC      arch/powerpc/kernel/module_64.o
  CC      arch/powerpc/kernel/dbell.o
  CC      arch/powerpc/kernel/jump_label.o
  CC      arch/powerpc/kernel/dma-iommu.o
  CC      arch/powerpc/kernel/iommu.o
  CC      arch/powerpc/kernel/smp.o
  CC      arch/powerpc/kernel/kprobes.o
  CC      arch/powerpc/kernel/legacy_serial.o
  CC      arch/powerpc/kernel/udbg_16550.o
  CC      arch/powerpc/kernel/stacktrace.o
  CC      arch/powerpc/kernel/pci_64.o
  CC      arch/powerpc/kernel/pci_dn.o
  CC      arch/powerpc/kernel/pci-hotplug.o
  CC      arch/powerpc/kernel/isa-bridge.o
  CC      arch/powerpc/kernel/pci-common.o
  CC      arch/powerpc/kernel/pci_of_scan.o
  CC      arch/powerpc/kernel/msi.o
  CC      arch/powerpc/kernel/machine_kexec.o
  CC      arch/powerpc/kernel/crash.o
  CC      arch/powerpc/kernel/machine_kexec_64.o
  CC      arch/powerpc/kernel/machine_kexec_file_64.o
  CC      arch/powerpc/kernel/kexec_elf_64.o
  CC      arch/powerpc/kernel/audit.o
  CC      arch/powerpc/kernel/trace_clock.o
  CC      arch/powerpc/kernel/compat_audit.o
  AS      arch/powerpc/kernel/tm.o
  AS      arch/powerpc/kernel/ppc_save_regs.o
  CC      arch/powerpc/kernel/prom_init.o
  AS      arch/powerpc/kernel/head_64.o
  LDS     arch/powerpc/kernel/vmlinux.lds
  AS      arch/powerpc/kernel/fpu.o
  AS      arch/powerpc/kernel/vector.o
  AS      arch/powerpc/kernel/entry_64.o
  CC [M]  arch/powerpc/kernel/rtas_flash.o
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh
  AS      arch/powerpc/kernel/systbl.o
  CALL    /home/kisskb/slave/src/arch/powerpc/kernel/prom_init_check.sh
  LD      arch/powerpc/kernel/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le'
Makefile:150: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/powerpc-next_pseries_le_defconfig_ppc64le
# Build took: 0:00:21.818483