# git rev-parse -q --verify a2ccce2ddfec3972eb628de6aafe4910770ccb21^{commit}
a2ccce2ddfec3972eb628de6aafe4910770ccb21
already have revision, skipping fetch
# git checkout -q -f -B kisskb a2ccce2ddfec3972eb628de6aafe4910770ccb21
# git clean -qxdf
# < git log -1
# commit a2ccce2ddfec3972eb628de6aafe4910770ccb21
# Author: Paul Mackerras <paulus@ozlabs.org>
# Date:   Fri Aug 3 20:13:06 2018 +1000
# 
#     powerpc/64: Copy as much as possible in __copy_tofrom_user
#     
#     In __copy_tofrom_user, if we encounter an exception on a store, we
#     stop copying and return the number of bytes not copied.  However,
#     if the store is wider than one byte and is to an unaligned address,
#     it is possible that the store operand overlaps a page boundary
#     and the exception occurred on the latter part of the store operand,
#     meaning that it would be possible to copy a few more bytes.  Since
#     copy_to_user is generally expected to copy as much as possible,
#     it would be better to copy those extra few bytes.  This adds code
#     to do that.  Since this edge case is not performance-critical,
#     the code has been written to be compact rather than as fast as
#     possible.
#     
#     Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-gcc --version
# < git log --format=%s --max-count=1 a2ccce2ddfec3972eb628de6aafe4910770ccb21
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  allmodconfig
# Added to kconfig CONFIG_CPU_LITTLE_ENDIAN=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_allmodconfig+ppc64le_ppc64le CROSS_COMPILE=/opt/cross/kisskb/gcc-5.2.0-nolibc/powerpc64le-linux/bin/powerpc64le-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
In file included from /kisskb/src/include/linux/io.h:25:0,
                 from /kisskb/src/include/linux/of_address.h:7,
                 from /kisskb/src/drivers/ata/ahci_qoriq.c:18:
/kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset':
/kisskb/src/arch/powerpc/include/asm/io.h:160:2: warning: 'px_is' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0"   \
  ^
/kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here
  u32 px_cmd, px_is, px_val;
              ^
In file included from /kisskb/src/include/linux/io.h:25:0,
                 from /kisskb/src/include/linux/of_address.h:7,
                 from /kisskb/src/drivers/ata/ahci_qoriq.c:18:
/kisskb/src/arch/powerpc/include/asm/io.h:160:2: warning: 'px_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized]
  __asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0"   \
  ^
/kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here
  u32 px_cmd, px_is, px_val;
      ^
WARNING: vmlinux.o(.text+0x36b4): 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+0x3944): 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+0x3978): 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_allmodconfig+ppc64le_ppc64le
# Build took: 0:14:45.311861