# git rev-parse -q --verify 9cefe99349cf0b542c103c61c96e702a56a941da^{commit}
9cefe99349cf0b542c103c61c96e702a56a941da
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9cefe99349cf0b542c103c61c96e702a56a941da
# git clean -qxdf
# < git log -1
# commit 9cefe99349cf0b542c103c61c96e702a56a941da
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Fri Dec 3 17:33:25 2021 +1100
# 
#     powerpc: Drop unused CONFIG_PPC_HAS_FEATURE_CALLS
#     
#     Since ~2002 we have had CONFIG_PPC_HAS_FEATURE_CALLS defined as a faux
#     CONFIG symbol, firstly in include/asm-ppc/machdep.h, and then later
#     copied over to powerpc when ppc and ppc64 were merged.
#     
#     The last in-tree usage was removed in 2005 in commit
#     7bbd827750e6 ("[PATCH] ppc64: very basic desktop g5 sound support").
#     
#     I haven't been able to find any meaningful references to it anywhere
#     else, so I suspect it has been unused for many years. It confuses
#     scripts/checkkconfigsymbols.py, and seems to serve no purpose, so drop
#     it.
#     
#     Note that it's not in a uapi header, ie. it could only be used by
#     out-of-tree kernel modules, not general userspace code.
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     ---
#     
#     If anything does use it, just let us know.
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 9cefe99349cf0b542c103c61c96e702a56a941da
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc85xx_defconfig
# Added to kconfig CONFIG_PPC_E500MC=y
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM_E500MC=y
# Added to kconfig 
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4301:warning: override: reassigning to symbol PPC_E500MC
.config:4302:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
In file included from /kisskb/src/include/linux/bitops.h:33,
                 from /kisskb/src/include/linux/kernel.h:13,
                 from /kisskb/src/include/linux/cpumask.h:10,
                 from /kisskb/src/include/linux/smp.h:13,
                 from /kisskb/src/include/linux/lockdep.h:14,
                 from /kisskb/src/include/linux/mutex.h:17,
                 from /kisskb/src/arch/powerpc/include/asm/kvm_ppc.h:15,
                 from /kisskb/src/arch/powerpc/kvm/e500_emulate.c:12:
/kisskb/src/arch/powerpc/include/asm/bitops.h: In function 'kvmppc_core_emulate_op_e500':
/kisskb/src/arch/powerpc/include/asm/bitops.h:104:3: error: asm operand 2 probably doesn't match constraints [-Werror]
  104 |   asm volatile (      \
      |   ^~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:126:1: note: in expansion of macro 'DEFINE_CLROP'
  126 | DEFINE_CLROP(clear_bits, "")
      | ^~~~~~~~~~~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:104:3: error: impossible constraint in 'asm'
  104 |   asm volatile (      \
      |   ^~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:126:1: note: in expansion of macro 'DEFINE_CLROP'
  126 | DEFINE_CLROP(clear_bits, "")
      | ^~~~~~~~~~~~
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:287: arch/powerpc/kvm/e500_emulate.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:549: arch/powerpc/kvm] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1846: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
In file included from /kisskb/src/include/linux/build_bug.h:5,
                 from /kisskb/src/include/linux/container_of.h:5,
                 from /kisskb/src/include/linux/list.h:5,
                 from /kisskb/src/include/linux/module.h:12,
                 from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15:
/kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd':
/kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   22 | #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO)
      |                                                 ^
/kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
   78 | # define unlikely(x) __builtin_expect(!!(x), 0)
      |                                          ^
/kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE'
  139 |  if (IS_ERR_VALUE(fep->ring_mem_addr))
      |      ^~~~~~~~~~~~
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9
# Build took: 0:01:07.660736