# git rev-parse -q --verify da73fcd8cfdc3d0ef49280fa0d511723a0220e03^{commit}
da73fcd8cfdc3d0ef49280fa0d511723a0220e03
already have revision, skipping fetch
# git checkout -q -f -B kisskb da73fcd8cfdc3d0ef49280fa0d511723a0220e03
# git clean -qxdf
# < git log -1
# commit da73fcd8cfdc3d0ef49280fa0d511723a0220e03
# Merge: 3f1266ec704d 8f868d68d335
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Dec 5 16:35:53 2019 -0800
# 
#     Merge branch 'pipe-rework' (patches from David Howells)
#     
#     Merge two fixes for the pipe rework from David Howells:
#      "Here are a couple of patches to fix bugs syzbot found in the pipe
#       changes:
#     
#        - An assertion check will sometimes trip when polling a pipe because
#          the ring size and indices used are approximate and may be being
#          changed simultaneously.
#     
#          An equivalent approximate calculation was done previously, but
#          without the assertion check, so I've just dropped the check. To
#          make it accurate, the pipe mutex would need to be taken or the spin
#          lock could be used - but usage of the spinlock would need to be
#          rolled out into splice, iov_iter and other places for that.
#     
#        - The index mask and the max_usage values cannot be cached across
#          pipe_wait() as F_SETPIPE_SZ could have been called during the wait.
#          This can cause pipe_write() to break"
#     
#     * pipe-rework:
#       pipe: Fix missing mask update after pipe_wait()
#       pipe: Remove assertion from pipe_poll()
# < /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 da73fcd8cfdc3d0ef49280fa0d511723a0220e03
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/iss476-smp_defconfig

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_iss476-smp_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:65:12: 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:5054:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/block/blk-merge.c: In function 'blk_rq_map_sg':
/kisskb/src/block/blk.h:78:50: warning: 'bvprv.bv_offset' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/block/blk-merge.c:481:42: note: 'bvprv.bv_offset' was declared here
/kisskb/src/block/blk.h:81:12: warning: 'bvprv.bv_len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/block/blk-merge.c:481:42: note: 'bvprv.bv_len' was declared here
/kisskb/src/arch/powerpc/include/asm/io.h:802:22: warning: 'bvprv.bv_page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/block/blk-merge.c:481:42: note: 'bvprv.bv_page' was declared here
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here
INFO: Uncompressed kernel (size 0x63b818) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
INFO: Uncompressed kernel (size 0x63b818) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_iss476-smp_defconfig_powerpc-gcc4.6
# Build took: 0:00:58.422153