# git rev-parse -q --verify 34daf445f82bd3a4df852bb5f1dffd792ac830a0^{commit}
34daf445f82bd3a4df852bb5f1dffd792ac830a0
already have revision, skipping fetch
# git checkout -q -f -B kisskb 34daf445f82bd3a4df852bb5f1dffd792ac830a0
# git clean -qxdf
# < git log -1
# commit 34daf445f82bd3a4df852bb5f1dffd792ac830a0
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Fri Aug 18 10:59:44 2023 +0200
# 
#     powerpc/perf: Convert fsl_emb notifier to state machine callbacks
#     
#       CC      arch/powerpc/perf/core-fsl-emb.o
#     arch/powerpc/perf/core-fsl-emb.c:675:6: error: no previous prototype for 'hw_perf_event_setup' [-Werror=missing-prototypes]
#       675 | void hw_perf_event_setup(int cpu)
#           |      ^~~~~~~~~~~~~~~~~~~
#     
#     Looks like fsl_emb was completely missed by commit 3f6da3905398 ("perf:
#     Rework and fix the arch CPU-hotplug hooks")
#     
#     So, apply same changes as commit 3f6da3905398 ("perf: Rework and fix
#     the arch CPU-hotplug hooks") then commit 57ecde42cc74 ("powerpc/perf:
#     Convert book3s notifier to state machine callbacks")
#     
#     While at it, also fix following error:
#     
#     arch/powerpc/perf/core-fsl-emb.c: In function 'perf_event_interrupt':
#     arch/powerpc/perf/core-fsl-emb.c:648:13: error: variable 'found' set but not used [-Werror=unused-but-set-variable]
#       648 |         int found = 0;
#           |             ^~~~~
#     
#     Fixes: 3f6da3905398 ("perf: Rework and fix the arch CPU-hotplug hooks")
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/603e1facb32608f88f40b7d7b9094adc50e7b2dc.1692349125.git.christophe.leroy@csgroup.eu
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 34daf445f82bd3a4df852bb5f1dffd792ac830a0
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64e_defconfig
# Added to kconfig CONFIG_SMP=n
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/arch/powerpc/include/asm/percpu.h:20:0,
                 from /kisskb/src/arch/powerpc/include/asm/mmu.h:148,
                 from /kisskb/src/arch/powerpc/include/asm/nohash/kup-booke.h:6,
                 from /kisskb/src/arch/powerpc/include/asm/kup.h:24,
                 from /kisskb/src/arch/powerpc/mm/nohash/kup.c:11:
/kisskb/src/arch/powerpc/include/asm/paca.h:155:23: error: field 'tcd' has incomplete type
  struct tlb_core_data tcd;
                       ^
/kisskb/src/arch/powerpc/include/asm/paca.h:291:36: error: 'struct mm_struct' declared inside parameter list [-Werror]
 extern void copy_mm_to_paca(struct mm_struct *mm);
                                    ^
/kisskb/src/arch/powerpc/include/asm/paca.h:291:36: error: its scope is only this definition or declaration, which is probably not what you want [-Werror]
cc1: all warnings being treated as errors
make[6]: *** [/kisskb/src/scripts/Makefile.build:243: arch/powerpc/mm/nohash/kup.o] Error 1
make[5]: *** [/kisskb/src/scripts/Makefile.build:480: arch/powerpc/mm/nohash] Error 2
make[4]: *** [/kisskb/src/scripts/Makefile.build:480: arch/powerpc/mm] Error 2
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [/kisskb/src/scripts/Makefile.build:480: arch/powerpc] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/Makefile:2032: .] Error 2
make[1]: *** [/kisskb/src/Makefile:234: __sub-make] Error 2
make: *** [Makefile:234: __sub-make] Error 2
Command 'make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2.
# rm -rf /kisskb/build/powerpc-next_ppc64e_defconfig+UP_powerpc-gcc5
# Build took: 0:00:59.266470