# git rev-parse -q --verify ffc1c20c46f74e24c3f03147688b4af6e429654a^{commit}
ffc1c20c46f74e24c3f03147688b4af6e429654a
already have revision, skipping fetch
# git checkout -q -f -B kisskb ffc1c20c46f74e24c3f03147688b4af6e429654a
# git clean -qxdf
# < git log -1
# commit ffc1c20c46f74e24c3f03147688b4af6e429654a
# Merge: f365ab31efac 81d5553d1288
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Apr 1 15:33:12 2020 -0700
# 
#     Merge tag 'for-5.7/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
#     
#     Pull device mapper updates from Mike Snitzer:
#     
#      - Add DM writecache "cleaner" policy feature that allows cache to be
#        flushed while userspace monitors for completion to then discommision
#        use of caching.
#     
#      - Optimize DM writecache superblock writing and also yield CPU while
#        initializing writecache on large PMEM devices to avoid CPU stalls.
#     
#      - Various fixes to DM integrity target while preparing for the ability
#        to resize a DM integrity device. In addition to resize support, add
#        optional discard support with the "allow_discards" feature.
#     
#      - Fix DM clone target's discard handling and overflow bugs which could
#        cause data corruption.
#     
#      - Fix memory leak in destructor for DM verity FEC support.
#     
#      - Fix DM zoned target's redundant increment of nr_rnd_zones.
#     
#      - Small cleanup in DM crypt to use crypt_integrity_aead() helper.
#     
#     * tag 'for-5.7/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
#       dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()
#       dm clone: Add missing casts to prevent overflows and data corruption
#       dm clone: Add overflow check for number of regions
#       dm clone: Fix handling of partial region discards
#       dm writecache: add cond_resched to avoid CPU hangs
#       dm integrity: improve discard in journal mode
#       dm integrity: add optional discard support
#       dm integrity: allow resize of the integrity device
#       dm integrity: factor out get_provided_data_sectors()
#       dm integrity: don't replay journal data past the end of the device
#       dm integrity: remove sector type casts
#       dm integrity: fix a crash with unusually large tag size
#       dm zoned: remove duplicate nr_rnd_zones increase in dmz_init_zone()
#       dm verity fec: fix memory leak in verity_fec_dtr
#       dm writecache: optimize superblock write
#       dm writecache: implement gradual cleanup
#       dm writecache: implement the "cleaner" policy
#       dm writecache: do direct write if the cache is full
#       dm integrity: print device name in integrity_metadata() error message
#       dm crypt: use crypt_integrity_aead() helper
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 ffc1c20c46f74e24c3f03147688b4af6e429654a
# < make -s -j 8 ARCH=sh O=/kisskb/build/linus_migor_defconfig_sh4-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  migor_defconfig
# < make -s -j 8 ARCH=sh O=/kisskb/build/linus_migor_defconfig_sh4-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 8 ARCH=sh O=/kisskb/build/linus_migor_defconfig_sh4-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 8 ARCH=sh O=/kisskb/build/linus_migor_defconfig_sh4-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S: Assembler messages:
/kisskb/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:385: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh4/../sh3/../../entry-common.S:388: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/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/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/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here
/kisskb/src/fs/io-wq.c: In function 'io_wq_cancel_cb':
/kisskb/src/fs/io-wq.c:931:21: warning: 'work' 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:6617:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r8':
/kisskb/src/drivers/sh/clk/cpg.c:41:2: warning: passing argument 1 of 'ioread8' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:29:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r16':
/kisskb/src/drivers/sh/clk/cpg.c:46:2: warning: passing argument 1 of 'ioread16' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:30:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r32':
/kisskb/src/drivers/sh/clk/cpg.c:51:2: warning: passing argument 1 of 'ioread32' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:32:21: note: expected 'void *' but argument is of type 'const void *'
mm/page_alloc.o: In function `get_page_from_freelist':
page_alloc.c:(.text+0x3180): undefined reference to `node_reclaim_distance'
make[1]: *** [/kisskb/src/Makefile:1086: vmlinux] Error 1
make: *** [Makefile:180: sub-make] Error 2
Command 'make -s -j 8 ARCH=sh O=/kisskb/build/linus_migor_defconfig_sh4-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_migor_defconfig_sh4-gcc4.6
# Build took: 0:01:20.934816