# git gc
# git rev-parse -q --verify 22b8cc3e78f5448b4c5df00303817a9137cd663f^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 22b8cc3e78f5448b4c5df00303817a9137cd663f^{commit}
22b8cc3e78f5448b4c5df00303817a9137cd663f
# git checkout -q -f -B kisskb 22b8cc3e78f5448b4c5df00303817a9137cd663f
# git clean -qxdf
# < git log -1
# commit 22b8cc3e78f5448b4c5df00303817a9137cd663f
# Merge: 7b664cc38ea7 97740266de26
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Apr 28 09:43:49 2023 -0700
# 
#     Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 LAM (Linear Address Masking) support from Dave Hansen:
#      "Add support for the new Linear Address Masking CPU feature.
#     
#       This is similar to ARM's Top Byte Ignore and allows userspace to store
#       metadata in some bits of pointers without masking it out before use"
#     
#     * tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/mm/iommu/sva: Do not allow to set FORCE_TAGGED_SVA bit from outside
#       x86/mm/iommu/sva: Fix error code for LAM enabling failure due to SVA
#       selftests/x86/lam: Add test cases for LAM vs thread creation
#       selftests/x86/lam: Add ARCH_FORCE_TAGGED_SVA test cases for linear-address masking
#       selftests/x86/lam: Add inherit test cases for linear-address masking
#       selftests/x86/lam: Add io_uring test cases for linear-address masking
#       selftests/x86/lam: Add mmap and SYSCALL test cases for linear-address masking
#       selftests/x86/lam: Add malloc and tag-bits test cases for linear-address masking
#       x86/mm/iommu/sva: Make LAM and SVA mutually exclusive
#       iommu/sva: Replace pasid_valid() helper with mm_valid_pasid()
#       mm: Expose untagging mask in /proc/$PID/status
#       x86/mm: Provide arch_prctl() interface for LAM
#       x86/mm: Reduce untagged_addr() overhead for systems without LAM
#       x86/uaccess: Provide untagged_addr() and remove tags before address check
#       mm: Introduce untagged_addr_remote()
#       x86/mm: Handle LAM on context switch
#       x86: CPUID and CR3/CR4 flags for Linear Address Masking
#       x86: Allow atomic MM_CONTEXT flags setting
#       x86/mm: Rework address range check in get_user() and put_user()
# < /opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 22b8cc3e78f5448b4c5df00303817a9137cd663f
# < make -s -j 32 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-  allnoconfig
# < make -s -j 32 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 32 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 32 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.3.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11
# Build took: 0:03:43.575947