# git rev-parse -q --verify 71a7507afbc3f27c346898f13ab9bfd918613c34^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 71a7507afbc3f27c346898f13ab9bfd918613c34^{commit}
71a7507afbc3f27c346898f13ab9bfd918613c34
# git checkout -q -f -B kisskb 71a7507afbc3f27c346898f13ab9bfd918613c34
# git clean -qxdf
# < git log -1
# commit 71a7507afbc3f27c346898f13ab9bfd918613c34
# Merge: ba54ff1fb662 f18caf261398
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Dec 16 03:54:54 2022 -0800
# 
#     Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
#     
#     Pull driver core updates from Greg KH:
#      "Here is the set of driver core and kernfs changes for 6.2-rc1.
#     
#       The "big" change in here is the addition of a new macro,
#       container_of_const() that will preserve the "const-ness" of a pointer
#       passed into it.
#     
#       The "problem" of the current container_of() macro is that if you pass
#       in a "const *", out of it can comes a non-const pointer unless you
#       specifically ask for it. For many usages, we want to preserve the
#       "const" attribute by using the same call. For a specific example, this
#       series changes the kobj_to_dev() macro to use it, allowing it to be
#       used no matter what the const value is. This prevents every subsystem
#       from having to declare 2 different individual macros (i.e.
#       kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce
#       the const value at build time, which having 2 macros would not do
#       either.
#     
#       The driver for all of this have been discussions with the Rust kernel
#       developers as to how to properly mark driver core, and kobject,
#       objects as being "non-mutable". The changes to the kobject and driver
#       core in this pull request are the result of that, as there are lots of
#       paths where kobjects and device pointers are not modified at all, so
#       marking them as "const" allows the compiler to enforce this.
#     
#       So, a nice side affect of the Rust development effort has been already
#       to clean up the driver core code to be more obvious about object
#       rules.
#     
#       All of this has been bike-shedded in quite a lot of detail on lkml
#       with different names and implementations resulting in the tiny version
#       we have in here, much better than my original proposal. Lots of
#       subsystem maintainers have acked the changes as well.
#     
#       Other than this change, included in here are smaller stuff like:
#     
#        - kernfs fixes and updates to handle lock contention better
#     
#        - vmlinux.lds.h fixes and updates
#     
#        - sysfs and debugfs documentation updates
#     
#        - device property updates
#     
#       All of these have been in the linux-next tree for quite a while with
#       no problems"
#     
#     * tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits)
#       device property: Fix documentation for fwnode_get_next_parent()
#       firmware_loader: fix up to_fw_sysfs() to preserve const
#       usb.h: take advantage of container_of_const()
#       device.h: move kobj_to_dev() to use container_of_const()
#       container_of: add container_of_const() that preserves const-ness of the pointer
#       driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion.
#       driver core: fix up missed scsi/cxlflash class.devnode() conversion.
#       driver core: fix up some missing class.devnode() conversions.
#       driver core: make struct class.devnode() take a const *
#       driver core: make struct class.dev_uevent() take a const *
#       cacheinfo: Remove of_node_put() for fw_token
#       device property: Add a blank line in Kconfig of tests
#       device property: Rename goto label to be more precise
#       device property: Move PROPERTY_ENTRY_BOOL() a bit down
#       device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*()
#       kernfs: fix all kernel-doc warnings and multiple typos
#       driver core: pass a const * into of_device_uevent()
#       kobject: kset_uevent_ops: make name() callback take a const *
#       kobject: kset_uevent_ops: make filter() callback take a const *
#       kobject: make kobject_namespace take a const *
#       ...
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 71a7507afbc3f27c346898f13ab9bfd918613c34
# < make -s -j 160 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  allnoconfig
# < make -s -j 160 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 160 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 160 ARCH=sparc O=/kisskb/build/linus_sparc-allnoconfig_sparc64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1517:2: 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: 0:00:44.384248