# git rev-parse -q --verify af3e9579ecfbe1796334bb25a2f0a6437983673a^{commit}
af3e9579ecfbe1796334bb25a2f0a6437983673a
already have revision, skipping fetch
# git checkout -q -f -B kisskb af3e9579ecfbe1796334bb25a2f0a6437983673a
# git clean -qxdf
# < git log -1
# commit af3e9579ecfbe1796334bb25a2f0a6437983673a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Aug 6 13:24:56 2022 -0700
# 
#     Revert "iommu/dma: Add config for PCI SAC address trick"
#     
#     This reverts commit 4bf7fda4dce22214c70c49960b1b6438e6260b67.
#     
#     It turns out that it was hopelessly naive to think that this would work,
#     considering that we've always done this.  The first machine I actually
#     tested this on broke at bootup, getting to
#     
#         Reached target cryptsetup.target - Local Encrypted Volumes.
#     
#     and then hanging.  It's unclear what actually fails, since there's a lot
#     else going on around that time (eg amdgpu probing also happens around
#     that same time, but it could be some other random init thing that didn't
#     complete earlier and just caused the boot to hang at that point).
#     
#     The expectations that we should default to some unsafe and untested mode
#     seems entirely unfounded, and the belief that this wouldn't affect
#     modern systems is clearly entirely false.  The machine in question is
#     about two years old, so it's not exactly shiny, but it's also not some
#     dusty old museum piece PDP-11 in a closet.
#     
#     Cc: Robin Murphy <robin.murphy@arm.com>
#     Cc: Christoph Hellwig <hch@lst.de>
#     Cc: John Garry <john.garry@huawei.com>
#     Cc: Joerg Roedel <jroedel@suse.de>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-ld --version
# < git log --format=%s --max-count=1 af3e9579ecfbe1796334bb25a2f0a6437983673a
# < make -s -j 120 ARCH=mips O=/kisskb/build/linus_micro32r2el_defconfig_mips-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-  micro32r2el_defconfig
# < make -s -j 120 ARCH=mips O=/kisskb/build/linus_micro32r2el_defconfig_mips-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-  help
# make -s -j 120 ARCH=mips O=/kisskb/build/linus_micro32r2el_defconfig_mips-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-  olddefconfig
# make -s -j 120 ARCH=mips O=/kisskb/build/linus_micro32r2el_defconfig_mips-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0"
{standard input}: Assembler messages:
{standard input}:1295: Error: branch to a symbol in another ISA mode
make[3]: *** [/kisskb/src/scripts/Makefile.build:249: arch/mips/kernel/smp-cps.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:466: arch/mips/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1844: arch/mips] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 120 ARCH=mips O=/kisskb/build/linus_micro32r2el_defconfig_mips-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/mips-linux/bin/mips-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_micro32r2el_defconfig_mips-gcc11
# Build took: 0:00:43.233400