# git rev-parse -q --verify 8b7fd679427c571c34f61d9eafed3562c52424ae^{commit}
8b7fd679427c571c34f61d9eafed3562c52424ae
already have revision, skipping fetch
# git checkout -q -f -B kisskb 8b7fd679427c571c34f61d9eafed3562c52424ae
# git clean -qxdf
# < git log -1
# commit 8b7fd679427c571c34f61d9eafed3562c52424ae
# Merge: 0432a0a066b0 b3c303be4c35
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Aug 3 10:58:46 2019 -0700
# 
#     Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull perf tooling fixes from Thomas Gleixner:
#      "A set of updates for perf tools and documentation:
#     
#       perf header:
#         - Prevent a division by zero
#         - Deal with an uninitialized warning proper
#     
#       libbpf:
#         - Fix the missiong __WORDSIZE definition for musl & al
#     
#       UAPI headers:
#         - Synchronize kernel headers
#     
#       Documentation:
#         - Fix the memory units for perf.data size"
#     
#     * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       libbpf: fix missing __WORDSIZE definition
#       perf tools: Fix perf.data documentation units for memory size
#       perf header: Fix use of unitialized value warning
#       perf header: Fix divide by zero error if f_header.attr_size==0
#       tools headers UAPI: Sync if_link.h with the kernel
#       tools headers UAPI: Sync sched.h with the kernel
#       tools headers UAPI: Sync usbdevice_fs.h with the kernels to get new ioctl
#       tools perf beauty: Fix usbdevfs_ioctl table generator to handle _IOC()
#       tools headers UAPI: Update tools's copy of drm.h headers
#       tools headers UAPI: Update tools's copy of mman.h headers
#       tools headers UAPI: Update tools's copy of kvm.h headers
#       tools include UAPI: Sync x86's syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open
# < /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 8b7fd679427c571c34f61d9eafed3562c52424ae
# < 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
arch/arm64/Makefile:56: CROSS_COMPILE_COMPAT not defined or empty, the compat vDSO will not be built
/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:1353:16: note: 'flags' was declared here
  unsigned long flags;
                ^
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:04:22.762299