# git rev-parse -q --verify 07953c54a10567e484cefd8f8c782025dc68b3b1^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 07953c54a10567e484cefd8f8c782025dc68b3b1^{commit}
07953c54a10567e484cefd8f8c782025dc68b3b1
# git checkout -q -f -B kisskb 07953c54a10567e484cefd8f8c782025dc68b3b1
# git clean -qxdf
# < git log -1
# commit 07953c54a10567e484cefd8f8c782025dc68b3b1
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jun 3 15:46:03 2022 -0700
# 
#     firmware_loader: enable XZ by default if compressed support is enabled
#     
#     Commit 23cfbc6ec44e ("firmware: Add the support for ZSTD-compressed
#     firmware files") added support for ZSTD compression, but in the process
#     also made the previously default XZ compression a config option.
#     
#     That means that anybody who upgrades their kernel and does a
#     
#         make oldconfig
#     
#     to update their configuration, will end up without the XZ compression
#     that the configuration used to have.
#     
#     Add the 'default y' to make sure this doesn't happen.
#     
#     The whole compression question should probably be improved upon, since
#     it is now possible to "enable" compression in the kernel config but not
#     enable any actual compression algorithm, which makes it all very
#     useless.  It makes no sense to ask Kconfig questions that enable
#     situations that are nonsensical like that.
#     
#     This at least fixes the immediate problem of a kernel update resulting
#     in a nonbootable machine because of a missed option.
#     
#     Fixes: 23cfbc6ec44e ("firmware: Add the support for ZSTD-compressed  firmware files")
#     Cc: Takashi Iwai <tiwai@suse.de>
#     Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 07953c54a10567e484cefd8f8c782025dc68b3b1
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_BPF_PRELOAD=n
# Added to kconfig 
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:7066:warning: override: reassigning to symbol STANDALONE
.config:7069:warning: override: reassigning to symbol GCC_PLUGINS
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  
vmlinux.o: warning: objtool: fixup_exception+0x2e8: unreachable instruction
vmlinux.o: warning: objtool: relocate_restore_code+0x3d: relocation to !ENDBR: sort_extable+0x18
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:03:06.512965