# 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/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 58b278f568f0509497e2df7310bfd719156a60d1
# < make -s -j 80 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# make -s -j 80 ARCH=x86_64 O=/kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/tools/objtool
/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/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq':
/kisskb/src/arch/x86/kernel/apic/io_apic.c:1037:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:665:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64-gcc4.6
# Build took: 0:00:33.595058