# 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-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 af3e9579ecfbe1796334bb25a2f0a6437983673a
# < make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_64BIT=n
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
Is "empty_zero_page" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__udelay" [vmlinux] version generation failed, symbol will not be versioned.
Is "__udelay" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__ndelay" [vmlinux] version generation failed, symbol will not be versioned.
Is "__ndelay" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__ashldi3" [vmlinux] version generation failed, symbol will not be versioned.
Is "__ashldi3" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__ashrdi3" [vmlinux] version generation failed, symbol will not be versioned.
Is "__ashrdi3" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "bzero_1page" [vmlinux] version generation failed, symbol will not be versioned.
Is "bzero_1page" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__copy_1page" [vmlinux] version generation failed, symbol will not be versioned.
Is "__copy_1page" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__divdi3" [vmlinux] version generation failed, symbol will not be versioned.
Is "__divdi3" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "___rw_read_enter" [vmlinux] version generation failed, symbol will not be versioned.
Is "___rw_read_enter" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "___rw_read_exit" [vmlinux] version generation failed, symbol will not be versioned.
Is "___rw_read_exit" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "___rw_read_try" [vmlinux] version generation failed, symbol will not be versioned.
Is "___rw_read_try" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "___rw_write_enter" [vmlinux] version generation failed, symbol will not be versioned.
Is "___rw_write_enter" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__lshrdi3" [vmlinux] version generation failed, symbol will not be versioned.
Is "__lshrdi3" prototyped in <asm/asm-prototypes.h>?
WARNING: modpost: EXPORT symbol "__muldi3" [vmlinux] version generation failed, symbol will not be versioned.
Is "__muldi3" prototyped in <asm/asm-prototypes.h>?
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+0x4): 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+0x1c): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x28): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x34): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x40): additional relocation overflows omitted from the output
make[1]: *** [/kisskb/src/Makefile:1165: vmlinux] Error 1
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sparc-allmodconfig_sparc64-gcc5
# Build took: 0:03:53.137720