# git rev-parse -q --verify 13b174c22f059e118b36e4b69cedd9ec92fe1ab4^{commit}
13b174c22f059e118b36e4b69cedd9ec92fe1ab4
already have revision, skipping fetch
# git checkout -q -f -B kisskb 13b174c22f059e118b36e4b69cedd9ec92fe1ab4
# git clean -qxdf
# git log -1
commit 13b174c22f059e118b36e4b69cedd9ec92fe1ab4
Author: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date:   Wed Jul 19 14:49:46 2017 +1000

    powerpc: Remove old unused icswx based coprocessor support
    
    We have a whole pile of unused code to maintain the ACOP register,
    allocate coprocessor PIDs and handle ACOP faults. This mechanism
    was used for the HFI adapter on POWER7 which is dead and gone and
    whose driver never went upstream. It was used on some A2 core based
    stuff that also never saw the light of day.
    
    Take out all that code.
    
    There is still some POWER8 coprocessor code that uses icswx but it's
    kernel only and thus doesn't use any of that infrastructure.
    
    Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 13b174c22f059e118b36e4b69cedd9ec92fe1ab4
# < make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc85xx_basic_defconfig
# make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/powerpc/include/generated/uapi/asm/param.h
  WRAP    arch/powerpc/include/generated/uapi/asm/poll.h
  WRAP    arch/powerpc/include/generated/uapi/asm/resource.h
  WRAP    arch/powerpc/include/generated/uapi/asm/sockios.h
  WRAP    arch/powerpc/include/generated/uapi/asm/statfs.h
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  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
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/sortextable
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/flattree.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/mod/mk_elfconfig
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/dtc/livetree.o
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/treesource.o
  UPD     include/config/kernel.release
  HOSTCC  scripts/dtc/srcpos.o
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/dtc/checks.o
  CHK     scripts/mod/devicetable-offsets.h
  HOSTCC  scripts/mod/sumversion.o
  UPD     scripts/mod/devicetable-offsets.h
  HOSTCC  scripts/mod/modpost.o
  Using /home/kisskb/slave/src as source for kernel
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/dtc/util.o
  CHK     include/generated/utsrelease.h
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  UPD     include/generated/utsrelease.h
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/dtc/dtc-parser.tab.c
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  CC      kernel/bounds.s
  CHK     include/generated/timeconst.h
  UPD     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/powerpc/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  HOSTLD  scripts/dtc/dtc
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
  HOSTLD  scripts/mod/modpost
  CC      init/main.o
  CHK     include/generated/compile.h
  AR      usr/built-in.o
  CC      init/do_mounts.o
  CC      init/noinitramfs.o
  CC      init/init_task.o
  UPD     include/generated/compile.h
  CC      init/version.o
  CC      arch/powerpc/mm/fault.o
  AS      arch/powerpc/lib/string.o
  CC      arch/powerpc/sysdev/mpic.o
  CC      arch/powerpc/kernel/cputable.o
  CC      arch/powerpc/platforms/chrp/setup.o
  CC      arch/powerpc/lib/alloc.o
  CC      arch/powerpc/lib/code-patching.o
  CC      arch/powerpc/mm/mem.o
  CC      arch/powerpc/kernel/ptrace.o
  CC      arch/powerpc/kernel/syscalls.o
In file included from /home/kisskb/slave/src/include/linux/kernel.h:13:0,
                 from /home/kisskb/slave/src/include/asm-generic/bug.h:15,
                 from /home/kisskb/slave/src/arch/powerpc/include/asm/bug.h:127,
                 from /home/kisskb/slave/src/include/linux/bug.h:4,
                 from /home/kisskb/slave/src/include/linux/signal.h:4,
                 from /home/kisskb/slave/src/arch/powerpc/mm/fault.c:18:
/home/kisskb/slave/src/arch/powerpc/mm/fault.c: In function '__do_page_fault':
/home/kisskb/slave/src/include/linux/kern_levels.h:4:18: error: unknown conversion type character '=' in format [-Werror=format=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/home/kisskb/slave/src/include/linux/printk.h:422:10: note: in definition of macro 'printk_ratelimited'
   printk(fmt, ##__VA_ARGS__);    \
          ^
/home/kisskb/slave/src/include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH'
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^
/home/kisskb/slave/src/arch/powerpc/mm/fault.c:417:23: note: in expansion of macro 'KERN_ERR'
    printk_ratelimited(KERN_ERR "Page fault in user mode"
                       ^
/home/kisskb/slave/src/include/linux/kern_levels.h:4:18: error: too many arguments for format [-Werror=format-extra-args]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/home/kisskb/slave/src/include/linux/printk.h:422:10: note: in definition of macro 'printk_ratelimited'
   printk(fmt, ##__VA_ARGS__);    \
          ^
/home/kisskb/slave/src/include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH'
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^
/home/kisskb/slave/src/arch/powerpc/mm/fault.c:417:23: note: in expansion of macro 'KERN_ERR'
    printk_ratelimited(KERN_ERR "Page fault in user mode"
                       ^
  CC      arch/powerpc/kernel/irq.o
cc1: all warnings being treated as errors
/home/kisskb/slave/src/scripts/Makefile.build:302: recipe for target 'arch/powerpc/mm/fault.o' failed
make[2]: *** [arch/powerpc/mm/fault.o] Error 1
make[2]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/lib/feature-fixups.o
  CC      arch/powerpc/kernel/align.o
  CC      arch/powerpc/platforms/chrp/time.o
  CC      arch/powerpc/platforms/chrp/pegasos_eth.o
  AS      arch/powerpc/lib/div64.o
  AS      arch/powerpc/lib/copy_32.o
  CC      arch/powerpc/sysdev/grackle.o
  AS      arch/powerpc/lib/crtsavres.o
  AS      arch/powerpc/lib/checksum_32.o
/home/kisskb/slave/src/Makefile:1019: recipe for target 'arch/powerpc/mm' failed
make[1]: *** [arch/powerpc/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
  CC      arch/powerpc/sysdev/indirect_pci.o
  AR      init/mounts.o
  AR      init/built-in.o
  CC      arch/powerpc/sysdev/i8259.o
  CC      arch/powerpc/lib/checksum_wrappers.o
  CC      arch/powerpc/platforms/chrp/pci.o
  CC      arch/powerpc/kernel/signal_32.o
  CC      arch/powerpc/platforms/powermac/pic.o
  CC      arch/powerpc/kernel/pmc.o
  AR      arch/powerpc/lib/built-in.o
  CC      arch/powerpc/platforms/powermac/setup.o
  CC      arch/powerpc/kernel/vdso.o
  CC      arch/powerpc/platforms/powermac/time.o
  CC      arch/powerpc/kernel/process.o
  CC      arch/powerpc/platforms/powermac/feature.o
  CC      arch/powerpc/platforms/powermac/pci.o
  AR      arch/powerpc/sysdev/built-in.o
  AS      arch/powerpc/platforms/powermac/sleep.o
  CC      arch/powerpc/platforms/powermac/low_i2c.o
  AS      arch/powerpc/platforms/powermac/cache.o
  CPP     arch/powerpc/kernel/systbl_chk.i
  CC      arch/powerpc/platforms/powermac/pfunc_core.o
  AR      arch/powerpc/platforms/chrp/built-in.o
  CC      arch/powerpc/platforms/powermac/pfunc_base.o
  CC      arch/powerpc/kernel/idle.o
  CC      arch/powerpc/platforms/powermac/udbg_scc.o
  CC      arch/powerpc/kernel/signal.o
  CC      arch/powerpc/kernel/sysfs.o
  CC      arch/powerpc/kernel/cacheinfo.o
  CC      arch/powerpc/kernel/time.o
  CC      arch/powerpc/kernel/prom.o
  CC      arch/powerpc/kernel/traps.o
  CC      arch/powerpc/kernel/setup-common.o
  CC      arch/powerpc/kernel/udbg.o
  AS      arch/powerpc/kernel/misc.o
  CC      arch/powerpc/kernel/io.o
  CC      arch/powerpc/platforms/powermac/udbg_adb.o
  CC      arch/powerpc/platforms/powermac/bootx_init.o
  CC      arch/powerpc/kernel/dma.o
  AS      arch/powerpc/kernel/misc_32.o
  CC      arch/powerpc/kernel/of_platform.o
  CC      arch/powerpc/kernel/prom_parse.o
  AR      arch/powerpc/kernel/trace/built-in.o
  CC      arch/powerpc/kernel/proc_powerpc.o
  LDS     arch/powerpc/kernel/vdso32/vdso32.lds
  VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o
  VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o
  VDSO32A arch/powerpc/kernel/vdso32/datapage.o
  CC      arch/powerpc/kernel/rtas.o
  VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o
  VDSO32A arch/powerpc/kernel/vdso32/note.o
  VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg
  OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so
  AS      arch/powerpc/kernel/vdso32/vdso32_wrapper.o
  CC      arch/powerpc/kernel/rtas-rtc.o
  AR      arch/powerpc/platforms/powermac/built-in.o
  AR      arch/powerpc/kernel/vdso32/built-in.o
  AR      arch/powerpc/platforms/built-in.o
  CC      arch/powerpc/kernel/rtasd.o
  CC      arch/powerpc/kernel/rtas-proc.o
  AS      arch/powerpc/kernel/idle_6xx.o
  AS      arch/powerpc/kernel/l2cr_6xx.o
  AS      arch/powerpc/kernel/cpu_setup_6xx.o
  AS      arch/powerpc/kernel/entry_32.o
  CC      arch/powerpc/kernel/setup_32.o
  CC      arch/powerpc/kernel/legacy_serial.o
  CC      arch/powerpc/kernel/udbg_16550.o
  CC      arch/powerpc/kernel/pci_32.o
  CC      arch/powerpc/kernel/pci-common.o
  CC      arch/powerpc/kernel/pci_of_scan.o
  CC      arch/powerpc/kernel/iomap.o
  CC      arch/powerpc/kernel/prom_init.o
  AS      arch/powerpc/kernel/head_32.o
  LDS     arch/powerpc/kernel/vmlinux.lds
  AS      arch/powerpc/kernel/fpu.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
  AR      arch/powerpc/kernel/built-in.o
make[1]: Leaving directory '/home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3'
Makefile:145: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 10 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/mpe_mpc85xx_basic_defconfig_powerpc-5.3
# Build took: 0:00:13.839583