# git rev-parse -q --verify ae02efbc3fcbabd9723c31c59db0cc4ce75ee22d^{commit}
ae02efbc3fcbabd9723c31c59db0cc4ce75ee22d
already have revision, skipping fetch
# git checkout -q -f -B kisskb ae02efbc3fcbabd9723c31c59db0cc4ce75ee22d
# git clean -qxdf
# < git log -1
# commit ae02efbc3fcbabd9723c31c59db0cc4ce75ee22d
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Thu May 2 15:21:07 2019 +1000
# 
#     powerpc/64: Don't trace code that runs with the soft irq mask unreconciled
#     
#     "Reconciling" in terms of interrupt handling, is to bring the soft irq
#     mask state in to synch with the hardware, after an interrupt causes
#     MSR[EE] to be cleared (while the soft mask may be enabled, and hard
#     irqs not marked disabled).
#     
#     General kernel code should not be called while unreconciled, because
#     local_irq_disable, etc. manipulations can cause surprising irq traces,
#     and it's fragile because the soft irq code does not really expect to
#     be called in this situation.
#     
#     When exiting from an interrupt, MSR[EE] is cleared to prevent races,
#     but soft irq state is enabled for the returned-to context, so this is
#     now an unreconciled state. restore_math is called in this state, and
#     that can be ftraced, and the ftrace subsystem disables local irqs.
#     
#     Mark restore_math and its callees as notrace. Restore a sanity check
#     in the soft irq code that had to be disabled for this case, by commit
#     4da1f79227ad4 ("powerpc/64: Disable irq restore warning for now").
#     
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 ae02efbc3fcbabd9723c31c59db0cc4ce75ee22d
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# Added to kconfig CONFIG_NUMA=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/net/netfilter/nf_nat_masquerade.c:15:21: warning: 'masq_refcnt6' defined but not used [-Wunused-variable]
 static unsigned int masq_refcnt6 __read_mostly;
                     ^
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
WARNING: vmlinux.o(.text+0x340c): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x3628): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:early_setup()
The function start_here_multiplatform() references
the function __init early_setup().
This is often because start_here_multiplatform lacks a __init 
annotation or the annotation of early_setup is wrong.

WARNING: vmlinux.o(.text+0x3664): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/powerpc-next_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5
# Build took: 0:03:00.706347