# git rev-parse -q --verify d1e521adad250ab8c979861c857fa2b1542c9741^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify d1e521adad250ab8c979861c857fa2b1542c9741^{commit}
d1e521adad250ab8c979861c857fa2b1542c9741
# git checkout -q -f -B kisskb d1e521adad250ab8c979861c857fa2b1542c9741
# git clean -qxdf
# < git log -1
# commit d1e521adad250ab8c979861c857fa2b1542c9741
# Merge: 595a56ac1b0d 388d8bdb87e0
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Jun 9 10:06:18 2020 -0700
# 
#     Merge tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing updates from Steven Rostedt:
#      "No new features this release. Mostly clean ups, restructuring and
#       documentation.
#     
#        - Have ftrace_bug() show ftrace errors before the WARN, as the WARN
#          will reboot the box before the error messages are printed if
#          panic_on_warn is set.
#     
#        - Have traceoff_on_warn disable tracing sooner (before prints)
#     
#        - Write a message to the trace buffer that its being disabled when
#          disable_trace_on_warning() is set.
#     
#        - Separate out synthetic events from histogram code to let it be used
#          by other parts of the kernel.
#     
#        - More documentation on histogram design.
#     
#        - Other small fixes and clean ups"
#     
#     * tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
#       tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option
#       tracing/doc: Fix ascii-art in histogram-design.rst
#       tracing: Add a trace print when traceoff_on_warning is triggered
#       ftrace,bug: Improve traceoff_on_warn
#       selftests/ftrace: Distinguish between hist and synthetic event checks
#       tracing: Move synthetic events to a separate file
#       tracing: Fix events.rst section numbering
#       tracing/doc: Fix typos in histogram-design.rst
#       tracing: Add hist_debug trace event files for histogram debugging
#       tracing: Add histogram-design document
#       tracing: Check state.disabled in synth event trace functions
#       tracing/probe: reverse arguments to list_add
#       tools/bootconfig: Add a summary of test cases and return error
#       ftrace: show debugging information when panic_on_warn set
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 d1e521adad250ab8c979861c857fa2b1542c9741
# < make -s -j 80 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# < make -s -j 80 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  help
# make -s -j 80 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  olddefconfig
# make -s -j 80 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0,
                 from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11,
                 from /kisskb/src/arch/ia64/include/asm/bitops.h:19,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/preempt.h:11,
                 from /kisskb/src/include/linux/spinlock.h:51,
                 from /kisskb/src/include/linux/seqlock.h:36,
                 from /kisskb/src/include/linux/time.h:6,
                 from /kisskb/src/fs/nfs/read.c:11:
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg'
     xchg(&nfs_req_openctx(req)->error, error);
     ^
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:353:2: note: in expansion of macro 'xchg'
  xchg(&ctx->error, 0);
  ^
No errors detected in 22247 functions.
Completed OK
# rm -rf /kisskb/build/linus_ia64-defconfig_ia64-gcc4.9
# Build took: 0:03:02.125152