# git rev-parse -q --verify 58dbe9b373df2828d873b1c0e5afc77485b2f376^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git fixes-test
# git rev-parse -q --verify 58dbe9b373df2828d873b1c0e5afc77485b2f376^{commit}
58dbe9b373df2828d873b1c0e5afc77485b2f376
# git checkout -q -f -B kisskb 58dbe9b373df2828d873b1c0e5afc77485b2f376
# git clean -qxdf
# < git log -1
# commit 58dbe9b373df2828d873b1c0e5afc77485b2f376
# Author: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
# Date:   Tue Mar 1 17:47:43 2022 -0300
# 
#     powerpc/64s: Fix build failure when CONFIG_PPC_64S_HASH_MMU is not set
#     
#     The following build failure occurs when CONFIG_PPC_64S_HASH_MMU is not
#     set:
#     
#         arch/powerpc/kernel/setup_64.c: In function ‘setup_per_cpu_areas’:
#         arch/powerpc/kernel/setup_64.c:811:21: error: ‘mmu_linear_psize’ undeclared (first use in this function); did you mean ‘mmu_virtual_psize’?
#           811 |                 if (mmu_linear_psize == MMU_PAGE_4K)
#               |                     ^~~~~~~~~~~~~~~~
#               |                     mmu_virtual_psize
#         arch/powerpc/kernel/setup_64.c:811:21: note: each undeclared identifier is reported only once for each function it appears in
#     
#     Move the declaration of mmu_linear_psize outside of
#     CONFIG_PPC_64S_HASH_MMU ifdef.
#     
#     After the above is fixed, it fails later with the following error:
#     
#         ld: arch/powerpc/kexec/file_load_64.o: in function `.arch_kexec_kernel_image_probe':
#         file_load_64.c:(.text+0x1c1c): undefined reference to `.add_htab_mem_range'
#     
#     Fix that, too, by conditioning add_htab_mem_range() symbol to
#     CONFIG_PPC_64S_HASH_MMU.
#     
#     Fixes: 387e220a2e5e ("powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU")
#     Reported-by: Erhard F. <erhard_f@mailbox.org>
#     Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215567
#     Link: https://lore.kernel.org/r/20220301204743.45133-1-muriloo@linux.ibm.com
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-gcc --version
# < /opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-ld --version
# < git log --format=%s --max-count=1 58dbe9b373df2828d873b1c0e5afc77485b2f376
# < make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-fixes_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  mmu_defconfig
# < make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-fixes_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  help
# make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-fixes_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  olddefconfig
# make -s -j 32 ARCH=microblaze O=/kisskb/build/powerpc-fixes_mmu_defconfig_microblaze CROSS_COMPILE=/opt/cross/kisskb/br-microblaze-full-2016.08-613-ge98b4dd/bin/microblazeel-linux-  
Kernel: arch/microblaze/boot/linux.bin is ready  (#1)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mmu_defconfig_microblaze
# Build took: 0:00:51.712817