# git gc
# git rev-parse -q --verify 5613970af3f5f8372c596b138bd64f3918513515^{commit}
5613970af3f5f8372c596b138bd64f3918513515
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5613970af3f5f8372c596b138bd64f3918513515
# git clean -qxdf
# < git log -1
# commit 5613970af3f5f8372c596b138bd64f3918513515
# Merge: 50978df311d8 b0b5ce1010ff
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Jan 4 10:49:15 2020 -0800
# 
#     Merge tag 'dmaengine-fix-5.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma
#     
#     Pull dmaengine fixes from Vinod Koul:
#      "A bunch of fixes for:
#     
#        - uninitialized dma_slave_caps access
#     
#        - virt-dma use after free in vchan_complete()
#     
#        - driver fixes for ioat, k3dma and jz4780"
#     
#     * tag 'dmaengine-fix-5.5-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
#       ioat: ioat_alloc_ring() failure handling.
#       dmaengine: virt-dma: Fix access after free in vchan_complete()
#       dmaengine: k3dma: Avoid null pointer traversal
#       dmaengine: dma-jz4780: Also break descriptor chains on JZ4725B
#       dmaengine: Fix access to uninitialized dma_slave_caps
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 5613970af3f5f8372c596b138bd64f3918513515
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:38: LSE atomics not supported by binutils
/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 [-Wmaybe-uninitialized]
   pd->msg->buf[real_pos] = data;
                          ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
  unsigned char data;
                ^
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:14,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit':
/kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1352:16: note: 'flags' was declared here
  unsigned long flags;
                ^
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:08:47.225301