# git rev-parse -q --verify d0657f7f78f8ae8e1a348b2785af542b29f2efda^{commit}
d0657f7f78f8ae8e1a348b2785af542b29f2efda
already have revision, skipping fetch
# git checkout -q -f -B kisskb d0657f7f78f8ae8e1a348b2785af542b29f2efda
# git clean -qxdf
# < git log -1
# commit d0657f7f78f8ae8e1a348b2785af542b29f2efda
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
# Date:   Sun Mar 18 16:35:58 2018 +0530
# 
#     powerpc/mm/hash: Don't memset pgd table if not needed
#     
#     We need to zero-out pgd table only if we share the slab cache with
#     pud/pmd level caches. With the support of 4PB, we don't share the slab
#     cache anymore. Instead of removing the code completely hide it within
#     an #ifdef. We don't need to do this with any other page table level,
#     because they all allocate table of double the size and we take of
#     initializing the first half corrrectly during page table zap.
#     
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
#     [mpe: Consolidate multiple #if / #ifdef into one]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 d0657f7f78f8ae8e1a348b2785af542b29f2efda
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  52xx/pcm030_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:127:33: warning: 'levelspread[<Ua500>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<Ua500>]' was declared here
INFO: Uncompressed kernel (size 0x475c44) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-4.16.0-rc4trunk+
Created:      Wed Mar 21 00:26:04 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2258057 Bytes = 2205.13 kB = 2.15 MB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next_52xx_pcm030_defconfig_powerpc
# Build took: 0:00:35.703082