# git rev-parse -q --verify 20621d2f27a0163b81dc2b74fd4c0b3e6aa5fa12^{commit}
20621d2f27a0163b81dc2b74fd4c0b3e6aa5fa12
already have revision, skipping fetch
# git checkout -q -f -B kisskb 20621d2f27a0163b81dc2b74fd4c0b3e6aa5fa12
# git clean -qxdf
# < git log -1
# commit 20621d2f27a0163b81dc2b74fd4c0b3e6aa5fa12
# Merge: fec3036200b7 81065b35e248
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Sep 19 13:29:36 2021 -0700
# 
#     Merge tag 'x86_urgent_for_v5.15_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 fixes from Borislav Petkov:
#     
#      - Prevent a infinite loop in the MCE recovery on return to user space,
#        which was caused by a second MCE queueing work for the same page and
#        thereby creating a circular work list.
#     
#      - Make kern_addr_valid() handle existing PMD entries, which are marked
#        not present in the higher level page table, correctly instead of
#        blindly dereferencing them.
#     
#      - Pass a valid address to sanitize_phys(). This was caused by the
#        mixture of inclusive and exclusive ranges. memtype_reserve() expect
#        'end' being exclusive, but sanitize_phys() wants it inclusive. This
#        worked so far, but with end being the end of the physical address
#        space the fail is exposed.
#     
#      - Increase the maximum supported GPIO numbers for 64bit. Newer SoCs
#        exceed the previous maximum.
#     
#     * tag 'x86_urgent_for_v5.15_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/mce: Avoid infinite loop for copy from user recovery
#       x86/mm: Fix kern_addr_valid() to cope with existing but not present entries
#       x86/platform: Increase maximum GPIO number for X86_64
#       x86/pat: Pass valid address to sanitize_phys()
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 20621d2f27a0163b81dc2b74fd4c0b3e6aa5fa12
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  allnoconfig
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
In file included from /kisskb/src/arch/arm64/include/asm/io.h:185,
                 from /kisskb/src/include/linux/scatterlist.h:9,
                 from /kisskb/src/include/linux/dma-mapping.h:10,
                 from /kisskb/src/arch/arm64/kernel/asm-offsets.c:13:
/kisskb/src/include/asm-generic/io.h:1059:21: error: redefinition of 'pci_iounmap'
 #define pci_iounmap pci_iounmap
                     ^~~~~~~~~~~
/kisskb/src/include/asm-generic/io.h:1060:20: note: in expansion of macro 'pci_iounmap'
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
                    ^~~~~~~~~~~
In file included from /kisskb/src/include/asm-generic/io.h:19,
                 from /kisskb/src/arch/arm64/include/asm/io.h:185,
                 from /kisskb/src/include/linux/scatterlist.h:9,
                 from /kisskb/src/include/linux/dma-mapping.h:10,
                 from /kisskb/src/arch/arm64/kernel/asm-offsets.c:13:
/kisskb/src/include/asm-generic/pci_iomap.h:54:20: note: previous definition of 'pci_iounmap' was here
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
                    ^~~~~~~~~~~
make[2]: *** [/kisskb/src/scripts/Makefile.build:121: arch/arm64/kernel/asm-offsets.s] Error 1
make[1]: *** [/kisskb/src/Makefile:1219: prepare0] Error 2
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allnoconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_arm64-allnoconfig_arm64-gcc8
# Build took: 0:00:05.061946