# git rev-parse -q --verify 512a9ffd687976079408cd43d442ebba5f34175c^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/alexey/linux.git kisskb
# git rev-parse -q --verify 512a9ffd687976079408cd43d442ebba5f34175c^{commit}
512a9ffd687976079408cd43d442ebba5f34175c
# git checkout -q -f -B kisskb 512a9ffd687976079408cd43d442ebba5f34175c
# git clean -qxdf
# < git log -1
# commit 512a9ffd687976079408cd43d442ebba5f34175c
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Wed Jan 23 14:53:40 2019 +1100
# 
#     vfio-pci/nvlink2: Fix ancient gcc warnings
#     
#     Using the {0} construct as a generic initializer is perfectly fine in C,
#     however due to a bug in old gcc there is a warning:
#     
#       + /kisskb/src/drivers/vfio/pci/vfio_pci_nvlink2.c: warning: (near
#     initialization for 'cap.header') [-Wmissing-braces]:  => 181:9
#     
#     Since for whatever reason we still want to compile the modern kernel
#     with such an old gcc without warnings, this changes the capabilities
#     initialization.
#     
#     The gcc bugzilla: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
#     
#     Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 512a9ffd687976079408cd43d442ebba5f34175c
# < make -s -j 24 ARCH=s390 O=/kisskb/build/aik_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  defconfig
# make -s -j 24 ARCH=s390 O=/kisskb/build/aik_s390-defconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/drivers/s390/scsi/zfcp_erp.c: In function 'zfcp_erp_action_enqueue':
/kisskb/src/drivers/s390/scsi/zfcp_erp.c:217:26: warning: 'erp_action' may be used uninitialized in this function [-Wmaybe-uninitialized]
  struct zfcp_erp_action *erp_action;
                          ^
Completed OK
# rm -rf /kisskb/build/aik_s390-defconfig_s390x-gcc4.9
# Build took: 0:02:20.828875