# git rev-parse -q --verify 58b278f568f0509497e2df7310bfd719156a60d1^{commit}
58b278f568f0509497e2df7310bfd719156a60d1
already have revision, skipping fetch
# git checkout -q -f -B kisskb 58b278f568f0509497e2df7310bfd719156a60d1
# git clean -qxdf
# < git log -1
# commit 58b278f568f0509497e2df7310bfd719156a60d1
# Author: Vaibhav Jain <vaibhav@linux.ibm.com>
# Date:   Wed Aug 28 13:57:29 2019 +0530
# 
#     powerpc: Provide initial documentation for PAPR hcalls
#     
#     This doc patch provides an initial description of the hcall op-codes
#     that are used by Linux kernel running as a guest (LPAR) on top of
#     PowerVM or any other sPAPR compliant hyper-visor (e.g qemu).
#     
#     Apart from documenting the hcalls the doc-patch also provides a
#     rudimentary overview of how hcall ABI, how they are issued with the
#     Linux kernel and how information/control flows between the guest and
#     hypervisor.
#     
#     Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
#     Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
#     Acked-by: Nicholas Piggin <npiggin@gmail.com>
#     [mpe: Add SPDX tag, add it to index.rst]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190828082729.16695-1-vaibhav@linux.ibm.com
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 58b278f568f0509497e2df7310bfd719156a60d1
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mpc885_ads_defconfig
# Added to kconfig CONFIG_HUGETLBFS=y
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 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:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1426:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
Image Name:   Linux-5.5.0-rc5-g58b278f568f0
Created:      Thu Jan 30 05:30:28 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    1784176 Bytes = 1742.36 KiB = 1.70 MiB
Load Address: 00400000
Entry Point:  004001dc
Completed OK
# rm -rf /kisskb/build/powerpc-next_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6
# Build took: 0:00:43.162090