# git rev-parse -q --verify 95f1fa9e3418d50ce099e67280b5497b9c93843b^{commit}
95f1fa9e3418d50ce099e67280b5497b9c93843b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 95f1fa9e3418d50ce099e67280b5497b9c93843b
# git clean -qxdf
# < git log -1
# commit 95f1fa9e3418d50ce099e67280b5497b9c93843b
# Merge: 477093b3e144 16c0f03f629a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Nov 27 11:42:01 2019 -0800
# 
#     Merge tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing updates from Steven Rostedt:
#      "New tracing features:
#     
#        - New PERMANENT flag to ftrace_ops when attaching a callback to a
#          function.
#     
#          As /proc/sys/kernel/ftrace_enabled when set to zero will disable
#          all attached callbacks in ftrace, this has a detrimental impact on
#          live kernel tracing, as it disables all that it patched. If a
#          ftrace_ops is registered to ftrace with the PERMANENT flag set, it
#          will prevent ftrace_enabled from being disabled, and if
#          ftrace_enabled is already disabled, it will prevent a ftrace_ops
#          with PREMANENT flag set from being registered.
#     
#        - New register_ftrace_direct().
#     
#          As eBPF would like to register its own trampolines to be called by
#          the ftrace nop locations directly, without going through the ftrace
#          trampoline, this function has been added. This allows for eBPF
#          trampolines to live along side of ftrace, perf, kprobe and live
#          patching. It also utilizes the ftrace enabled_functions file that
#          keeps track of functions that have been modified in the kernel, to
#          allow for security auditing.
#     
#        - Allow for kernel internal use of ftrace instances.
#     
#          Subsystems in the kernel can now create and destroy their own
#          tracing instances which allows them to have their own tracing
#          buffer, and be able to record events without worrying about other
#          users from writing over their data.
#     
#        - New seq_buf_hex_dump() that lets users use the hex_dump() in their
#          seq_buf usage.
#     
#        - Notifications now added to tracing_max_latency to allow user space
#          to know when a new max latency is hit by one of the latency
#          tracers.
#     
#        - Wider spread use of generic compare operations for use of bsearch
#          and friends.
#     
#        - More synthetic event fields may be defined (32 up from 16)
#     
#        - Use of xarray for architectures with sparse system calls, for the
#          system call trace events.
#     
#       This along with small clean ups and fixes"
#     
#     * tag 'trace-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (51 commits)
#       tracing: Enable syscall optimization for MIPS
#       tracing: Use xarray for syscall trace events
#       tracing: Sample module to demonstrate kernel access to Ftrace instances.
#       tracing: Adding new functions for kernel access to Ftrace instances
#       tracing: Fix Kconfig indentation
#       ring-buffer: Fix typos in function ring_buffer_producer
#       ftrace: Use BIT() macro
#       ftrace: Return ENOTSUPP when DYNAMIC_FTRACE_WITH_DIRECT_CALLS is not configured
#       ftrace: Rename ftrace_graph_stub to ftrace_stub_graph
#       ftrace: Add a helper function to modify_ftrace_direct() to allow arch optimization
#       ftrace: Add helper find_direct_entry() to consolidate code
#       ftrace: Add another check for match in register_ftrace_direct()
#       ftrace: Fix accounting bug with direct->count in register_ftrace_direct()
#       ftrace/selftests: Fix spelling mistake "wakeing" -> "waking"
#       tracing: Increase SYNTH_FIELDS_MAX for synthetic_events
#       ftrace/samples: Add a sample module that implements modify_ftrace_direct()
#       ftrace: Add modify_ftrace_direct()
#       tracing: Add missing "inline" in stub function of latency_fsnotify()
#       tracing: Remove stray tab in TRACE_EVAL_MAP_FILE's help text
#       tracing: Use seq_buf_hex_dump() to dump buffers
#       ...
# < /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 95f1fa9e3418d50ce099e67280b5497b9c93843b
# < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  allmodconfig
# make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_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/block/null_blk_main.c: In function 'nullb_device_zone_nr_conv_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:327:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zone_nr_conv, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_mbps_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:323:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(mbps, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_index_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:318:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(index, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_hw_queue_depth_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:317:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(hw_queue_depth, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_irqmode_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:316:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(irqmode, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_blocksize_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:315:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(blocksize, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_queue_mode_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:314:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(queue_mode, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_home_node_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:313:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(home_node, uint, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zone_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:326:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zone_size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_cache_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:324:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(cache_size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_completion_nsec_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:311:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(completion_nsec, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_size_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:310:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(size, ulong, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_zoned_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:325:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(zoned, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_discard_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:322:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(discard, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_memory_backed_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:321:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(memory_backed, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_use_per_node_hctx_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:320:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(use_per_node_hctx, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_blocking_store':
/kisskb/src/drivers/block/null_blk_main.c:291:12: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  dev->NAME = new_value;       \
            ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:319:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(blocking, bool, NULL);
 ^
/kisskb/src/drivers/block/null_blk_main.c: In function 'nullb_device_submit_queues_store':
/kisskb/src/drivers/block/null_blk_main.c:307:48: warning: 'new_value' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return set->nr_hw_queues == submit_queues ? 0 : -ENOMEM;
                                                ^
/kisskb/src/drivers/block/null_blk_main.c:279:7: note: 'new_value' was declared here
  TYPE new_value;        \
       ^
/kisskb/src/drivers/block/null_blk_main.c:312:1: note: in expansion of macro 'NULLB_DEVICE_ATTR'
 NULLB_DEVICE_ATTR(submit_queues, uint, nullb_apply_submit_queues);
 ^
/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/wait.h:9:0,
                 from /kisskb/src/include/linux/net.h:19,
                 from /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:8:
/kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c: In function 'siw_proc_send':
/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/infiniband/sw/siw/siw_qp_rx.c:335:16: note: 'flags' was declared here
  unsigned long flags;
                ^
/kisskb/src/drivers/net/ethernet/pensando/ionic/ionic_main.c: In function 'ionic_dev_cmd_wait':
/kisskb/src/drivers/net/ethernet/pensando/ionic/ionic_main.c:331:6: warning: 'hb' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int hb;
      ^
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;
                ^
WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/pinctrl-equilibrium.o
see include/linux/module.h for more information
Completed OK
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc5.4
# Build took: 0:44:59.939396