# git rev-parse -q --verify efb52a7d9511df818391f1afa459507425833438^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify efb52a7d9511df818391f1afa459507425833438^{commit}
efb52a7d9511df818391f1afa459507425833438
# git checkout -q -f -B kisskb efb52a7d9511df818391f1afa459507425833438
# git clean -qxdf
# < git log -1
# commit efb52a7d9511df818391f1afa459507425833438
# Merge: 75cd9b0152d9 eb8257a12192
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Oct 10 10:12:42 2021 -0700
# 
#     Merge tag 'powerpc-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
#     
#     Pull powerpc fixes from Michael Ellerman:
#      "A bit of a big batch, partly because I didn't send any last week, and
#       also just because the BPF fixes happened to land this week.
#     
#       Summary:
#     
#        - Fix a regression hit by the IPR SCSI driver, introduced by the
#          recent addition of MSI domains on pseries.
#     
#        - A big series including 8 BPF fixes, some with potential security
#          impact and the rest various code generation issues.
#     
#        - Fix our program check assembler entry path, which was accidentally
#          jumping into a gas macro and generating strange stack frames, which
#          could confuse find_bug().
#     
#        - A couple of fixes, and related changes, to fix corner cases in our
#          machine check handling.
#     
#        - Fix our DMA IOMMU ops, which were not always returning the optimal
#          DMA mask, leading to at least one device falling back to 32-bit DMA
#          when it shouldn't.
#     
#        - A fix for KUAP handling on 32-bit Book3S.
#     
#        - Fix crashes seen when kdumping on some pseries systems.
#     
#       Thanks to Naveen N. Rao, Nicholas Piggin, Alexey Kardashevskiy, Cédric
#       Le Goater, Christophe Leroy, Mahesh Salgaonkar, Abdul Haleem,
#       Christoph Hellwig, Johan Almbladh, Stan Johnson"
#     
#     * tag 'powerpc-5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
#       pseries/eeh: Fix the kdump kernel crash during eeh_pseries_init
#       powerpc/32s: Fix kuap_kernel_restore()
#       powerpc/pseries/msi: Add an empty irq_write_msi_msg() handler
#       powerpc/64s: Fix unrecoverable MCE calling async handler from NMI
#       powerpc/64/interrupt: Reconcile soft-mask state in NMI and fix false BUG
#       powerpc/64: warn if local irqs are enabled in NMI or hardirq context
#       powerpc/traps: do not enable irqs in _exception
#       powerpc/64s: fix program check interrupt emergency stack path
#       powerpc/bpf ppc32: Fix BPF_SUB when imm == 0x80000000
#       powerpc/bpf ppc32: Do not emit zero extend instruction for 64-bit BPF_END
#       powerpc/bpf ppc32: Fix JMP32_JSET_K
#       powerpc/bpf ppc32: Fix ALU32 BPF_ARSH operation
#       powerpc/bpf: Emit stf barrier instruction sequences for BPF_NOSPEC
#       powerpc/security: Add a helper to query stf_barrier type
#       powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
#       powerpc/bpf: Fix BPF_MOD when imm == 1
#       powerpc/bpf: Validate branch ranges
#       powerpc/lib: Add helper to check if offset is within conditional branch range
#       powerpc/iommu: Report the correct most efficient DMA mask for PCI devices
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 efb52a7d9511df818391f1afa459507425833438
# < make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_BPF_PRELOAD=n
# Added to kconfig 
# < make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:6738:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
.config:6740:warning: override: reassigning to symbol GCC_PLUGINS
# make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
vmlinux.o: warning: objtool: __sev_es_nmi_complete()+0x8e: call to __phys_addr_nodebug() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode()+0x29: call to test_bit() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_enter_from_user_mode_prepare()+0x20: call to test_bit() leaves .noinstr.text section
vmlinux.o: warning: objtool: elf_update: invalid section entry size
make[1]: *** [/kisskb/src/Makefile:1183: vmlinux] Error 255
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:02:10.264339