# git rev-parse -q --verify 9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b^{commit}
9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b
# git clean -qxdf
# < git log -1
# commit 9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b
# Author: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
# Date:   Thu Jan 18 00:33:36 2018 +0530
# 
#     powerpc/64s: Default l1d_size to 64K in RFI fallback flush
#     
#     If there is no d-cache-size property in the device tree, l1d_size could
#     be zero. We don't actually expect that to happen, it's only been seen
#     on mambo (simulator) in some configurations.
#     
#     A zero-size l1d_size leads to the loop in the asm wrapping around to
#     2^64-1, and then walking off the end of the fallback area and
#     eventually causing a page fault which is fatal.
#     
#     Just default to 64K which is correct on some CPUs, and sane enough to
#     not cause a crash on others.
#     
#     Fixes: aa8a5e0062ac9 ('powerpc/64s: Add support for RFI flush of L1-D cache')
#     Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
#     [mpe: Rewrite comment and change log]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 9dfbf78e4114fcaf4ef61c49885c3ab5bad40d0b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_iss476-smp_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/iss476-smp_defconfig

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_iss476-smp_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]

WARNING: unmet direct dependencies detected for HOTPLUG_CPU
  Depends on [n]: SMP [=y] && (PPC_PSERIES [=n] || PPC_PMAC [=n] || PPC_POWERNV [=n] || FSL_SOC_BOOKE [=n])
  Selected by [y]:
  - PM_SLEEP_SMP [=y] && SMP [=y] && (ARCH_SUSPEND_POSSIBLE [=y] || ARCH_HIBERNATION_POSSIBLE [=y]) && PM_SLEEP [=y]
WARNING: modpost: Found 1 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
INFO: Uncompressed kernel (size 0x5fef28) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5fef28) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_iss476-smp_defconfig_powerpc-5.3
# Build took: 0:01:08.250730