# git rev-parse -q --verify 49ef015632ab3fcc19b2cb37b199d6d7ebcfa5f8^{commit}
49ef015632ab3fcc19b2cb37b199d6d7ebcfa5f8
already have revision, skipping fetch
# git checkout -q -f -B kisskb 49ef015632ab3fcc19b2cb37b199d6d7ebcfa5f8
# git clean -qxdf
# < git log -1
# commit 49ef015632ab3fcc19b2cb37b199d6d7ebcfa5f8
# Merge: 19caf581ba44 d8b5297f6d98
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Mar 24 11:16:27 2019 -0700
# 
#     Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull perf updates from Thomas Gleixner:
#      "A larger set of perf updates.
#     
#       Not all of them are strictly fixes, but that's solely the tip
#       maintainers fault as they let the timely -rc1 pull request fall
#       through the cracks for various reasons including travel. So I'm
#       sending this nevertheless because rebasing and distangling fixes and
#       updates would be a mess and risky as well. As of tomorrow, a strict
#       fixes separation is happening again. Sorry for the slip-up.
#     
#       Kernel:
#     
#        - Handle RECORD_MMAP vs. RECORD_MMAP2 correctly so different
#          consumers of the mmap event get what they requested.
#     
#       Tools:
#     
#        - A larger set of updates to perf record/report/scripts vs. time
#          stamp handling
#     
#        - More Python3 fixups
#     
#        - A pile of memory leak plumbing
#     
#        - perf BPF improvements and fixes
#     
#        - Finalize the perf.data directory storage"
#     
#     [ Note: the kernel part is strictly a fix, the updates are purely to
#       tooling       - Linus ]
#     
#     * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits)
#       perf bpf: Show more BPF program info in print_bpf_prog_info()
#       perf bpf: Extract logic to create program names from perf_event__synthesize_one_bpf_prog()
#       perf tools: Save bpf_prog_info and BTF of new BPF programs
#       perf evlist: Introduce side band thread
#       perf annotate: Enable annotation of BPF programs
#       perf build: Check what binutils's 'disassembler()' signature to use
#       perf bpf: Process PERF_BPF_EVENT_PROG_LOAD for annotation
#       perf symbols: Introduce DSO_BINARY_TYPE__BPF_PROG_INFO
#       perf feature detection: Add -lopcodes to feature-libbfd
#       perf top: Add option --no-bpf-event
#       perf bpf: Save BTF information as headers to perf.data
#       perf bpf: Save BTF in a rbtree in perf_env
#       perf bpf: Save bpf_prog_info information as headers to perf.data
#       perf bpf: Save bpf_prog_info in a rbtree in perf_env
#       perf bpf: Make synthesize_bpf_events() receive perf_session pointer instead of perf_tool
#       perf bpf: Synthesize bpf events with bpf_program__get_prog_info_linear()
#       bpftool: use bpf_program__get_prog_info_linear() in prog.c:do_dump()
#       tools lib bpf: Introduce bpf_program__get_prog_info_linear()
#       perf record: Replace option --bpf-event with --no-bpf-event
#       perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test()
#       ...
# < /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 49ef015632ab3fcc19b2cb37b199d6d7ebcfa5f8
# < make -s -j 120 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 120 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:40: 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:17,
                 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:279:3: 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:1363:16: note: 'flags' was declared here
  unsigned long flags;
                ^
/kisskb/src/net/sunrpc/xprtsock.c: In function 'xs_read_stream_request.constprop':
/kisskb/src/net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ret < 0 ? ret : read;
         ^
/kisskb/src/net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return read;
          ^
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:02:25.473241