# git rev-parse -q --verify ee76722ff17507592ae68ce4faf8ec6cc12df07d^{commit}
ee76722ff17507592ae68ce4faf8ec6cc12df07d
already have revision, skipping fetch
# git checkout -q -f -B kisskb ee76722ff17507592ae68ce4faf8ec6cc12df07d
# git clean -qxdf
# < git log -1
# commit ee76722ff17507592ae68ce4faf8ec6cc12df07d
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Thu May 6 10:23:52 2021 +0000
# 
#     powerpc/32s: Simplify calculation of segment register content
#     
#     segment register has VSID on bits 8-31.
#     Bits 4-7 are reserved, there is no requirement to set them to 0.
#     
#     VSIDs are calculated from VSID of SR0 by adding 0x111.
#     
#     Even with highest possible VSID which would be 0xFFFFF0,
#     adding 16 times 0x111 results in 0x1001100.
#     
#     So, the reserved bits are never overflowed, no need to clear
#     the reserved bits after each calculation.
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 ee76722ff17507592ae68ce4faf8ec6cc12df07d
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  corenet64_smp_defconfig
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c: In function 'set_context':
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:264:3: error: expected expression before 's16'
   s16 offset = (s16)(__pa(swapper_pg_dir));
   ^
In file included from /kisskb/src/arch/powerpc/include/asm/processor.h:11:0,
                 from /kisskb/src/arch/powerpc/include/asm/thread_info.h:40,
                 from /kisskb/src/include/linux/thread_info.h:59,
                 from /kisskb/src/include/asm-generic/preempt.h:5,
                 from ./arch/powerpc/include/generated/asm/preempt.h:1,
                 from /kisskb/src/include/linux/preempt.h:78,
                 from /kisskb/src/include/linux/spinlock.h:51,
                 from /kisskb/src/include/linux/mmzone.h:8,
                 from /kisskb/src/include/linux/gfp.h:6,
                 from /kisskb/src/include/linux/mm.h:10,
                 from /kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:40:
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:271:33: error: 'offset' undeclared (first use in this function)
   mtspr(SPRN_M_TWB, __pa(pgd) - offset);
                                 ^
/kisskb/src/arch/powerpc/include/asm/reg.h:1394:33: note: in definition of macro 'mtspr'
          : "r" ((unsigned long)(v)) \
                                 ^
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:271:33: note: each undeclared identifier is reported only once for each function it appears in
   mtspr(SPRN_M_TWB, __pa(pgd) - offset);
                                 ^
/kisskb/src/arch/powerpc/include/asm/reg.h:1394:33: note: in definition of macro 'mtspr'
          : "r" ((unsigned long)(v)) \
                                 ^
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c: At top level:
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:277:4: error: expected identifier or '(' before 'else'
  } else {
    ^
/kisskb/src/arch/powerpc/mm/nohash/mmu_context.c:283:1: error: expected identifier or '(' before '}' token
 }
 ^
make[4]: *** [/kisskb/src/scripts/Makefile.build:272: arch/powerpc/mm/nohash/mmu_context.o] Error 1
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/kisskb/src/scripts/Makefile.build:515: arch/powerpc/mm/nohash] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:515: arch/powerpc/mm] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1855: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:215: __sub-make] Error 2
Command 'make -s -j 32 ARCH=powerpc O=/kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/chleroy_corenet64_smp_defconfig_powerpc-gcc4.9
# Build took: 0:02:07.700732