# git rev-parse -q --verify 776e49e8ddb5169e6477fd33a396e9c7b2eb7400^{commit}
776e49e8ddb5169e6477fd33a396e9c7b2eb7400
already have revision, skipping fetch
# git checkout -q -f -B kisskb 776e49e8ddb5169e6477fd33a396e9c7b2eb7400
# git clean -qxdf
# < git log -1
# commit 776e49e8ddb5169e6477fd33a396e9c7b2eb7400
# Merge: 8b614cb8f1dc 636be4241bdd
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Mar 4 13:02:45 2020 -0600
# 
#     Merge tag 'for-5.6/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
#     
#     Pull device mapper fixes from Mike Snitzer:
#     
#      - Fix request-based DM's congestion_fn and actually wire it up to the
#        bdi.
#     
#      - Extend dm-bio-record to track additional struct bio members needed by
#        DM integrity target.
#     
#      - Fix DM core to properly advertise that a device is suspended during
#        unload (between the presuspend and postsuspend hooks). This change is
#        a prereq for related DM integrity and DM writecache fixes. It
#        elevates DM integrity's 'suspending' state tracking to DM core.
#     
#      - Four stable fixes for DM integrity target.
#     
#      - Fix crash in DM cache target due to incorrect work item cancelling.
#     
#      - Fix DM thin metadata lockdep warning that was introduced during 5.6
#        merge window.
#     
#      - Fix DM zoned target's chunk work refcounting that regressed during
#        recent conversion to refcount_t.
#     
#      - Bump the minor version for DM core and all target versions that have
#        seen interface changes or important fixes during the 5.6 cycle.
#     
#     * tag 'for-5.6/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
#       dm: bump version of core and various targets
#       dm: fix congested_fn for request-based device
#       dm integrity: use dm_bio_record and dm_bio_restore
#       dm bio record: save/restore bi_end_io and bi_integrity
#       dm zoned: Fix reference counter initial value of chunk works
#       dm writecache: verify watermark during resume
#       dm: report suspended device during destroy
#       dm thin metadata: fix lockdep complaint
#       dm cache: fix a crash due to incorrect work item cancelling
#       dm integrity: fix invalid table returned due to argument count mismatch
#       dm integrity: fix a deadlock due to offloading to an incorrect workqueue
#       dm integrity: fix recalculation when moving from journal mode to bitmap mode
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 776e49e8ddb5169e6477fd33a396e9c7b2eb7400
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  maple_defconfig
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:72:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1426:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/trace/trace_events.c: In function 'event_create_dir':
/kisskb/src/kernel/trace/trace_events.c:2040:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update':
/kisskb/src/fs/io_uring.c:5824:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_maple_defconfig_powerpc-gcc4.6
# Build took: 0:01:16.837392