# git rev-parse -q --verify 14d7c92f8df9c0964ae6f8b813c1b3ac38120825^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 14d7c92f8df9c0964ae6f8b813c1b3ac38120825^{commit}
14d7c92f8df9c0964ae6f8b813c1b3ac38120825
# git checkout -q -f -B kisskb 14d7c92f8df9c0964ae6f8b813c1b3ac38120825
# git clean -qxdf
# < git log -1
# commit 14d7c92f8df9c0964ae6f8b813c1b3ac38120825
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jun 17 12:57:03 2024 -0700
# 
#     Revert "mm: mmap: allow for the maximum number of bits for randomizing mmap_base by default"
#     
#     This reverts commit 3afb76a66b5559a7b595155803ce23801558a7a9.
#     
#     This was a wrongheaded workaround for an issue that had already been
#     fixed much better by commit 4ef9ad19e176 ("mm: huge_memory: don't force
#     huge page alignment on 32 bit").
#     
#     Asking users questions at kernel compile time that they can't make sense
#     of is not a viable strategy.  And the fact that even the kernel VM
#     maintainers apparently didn't catch that this "fix" is not a fix any
#     more pretty much proves the point that people can't be expected to
#     understand the implications of the question.
#     
#     It may well be the case that we could improve things further, and that
#     __thp_get_unmapped_area() should take the mapping randomization into
#     account even for 64-bit kernels.  Maybe we should not be so eager to use
#     THP mappings.
#     
#     But in no case should this be a kernel config option.
#     
#     Cc: Rafael Aquini <aquini@redhat.com>
#     Cc: Andrew Morton <akpm@linux-foundation.org>
#     Cc: Jiri Slaby <jirislaby@kernel.org>
#     Cc: Suren Baghdasaryan <surenb@google.com>
#     Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 14d7c92f8df9c0964ae6f8b813c1b3ac38120825
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_64BIT=n
# Added to kconfig 
# < make -s -j 24 ARCH=sparc O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
arch/sparc/kernel/head_32.o: in function `current_pc':
(.head.text+0x5040): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: in function `halt_notsup':
(.head.text+0x5100): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: in function `leon_init':
(.init.text+0xa4): relocation truncated to fit: R_SPARC_WDISP22 against symbol `leon_smp_cpu_startup' defined in .text section in arch/sparc/kernel/trampoline_32.o
arch/sparc/kernel/process_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/process_32.o:(.fixup+0xc): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x0): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x8): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x10): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x18): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x20): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x28): additional relocation overflows omitted from the output
make[3]: *** [/kisskb/src/scripts/Makefile.vmlinux:34: vmlinux] Error 1
make[2]: *** [/kisskb/src/Makefile:1171: vmlinux] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:240: __sub-make] Error 2
make: *** [Makefile:240: __sub-make] Error 2
Command 'make -s -j 24 ARCH=sparc O=/kisskb/build/linus_allmodconfig_sparc64-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  ' returned non-zero exit status 2.
# rm -rf /kisskb/build/linus_allmodconfig_sparc64-gcc13
# Build took: 0:37:42.813795