# git rev-parse -q --verify 56ca73e491a54bd7be10e398593977df9ee4d4ff^{commit}
# git fetch -q -n -f https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git for-next/kspp
# git rev-parse -q --verify 56ca73e491a54bd7be10e398593977df9ee4d4ff^{commit}
56ca73e491a54bd7be10e398593977df9ee4d4ff
# git checkout -q -f -B kisskb 56ca73e491a54bd7be10e398593977df9ee4d4ff
# git clean -qxdf
# < git log -1
# commit 56ca73e491a54bd7be10e398593977df9ee4d4ff
# Author: Gustavo A. R. Silva <gustavo@embeddedor.com>
# Date:   Tue Feb 11 10:00:37 2020 -0600
# 
#     treewide: Replace zero-length arrays with flexible array member
#     
#     The current codebase makes use of the zero-length array language
#     extension to the C90 standard, but the preferred mechanism to declare
#     variable-length types such as these ones is a flexible array member[1][2],
#     introduced in C99:
#     
#     struct foo {
#             int stuff;
#             struct boo array[];
#     };
#     
#     By making use of the mechanism above, we will get a compiler warning
#     in case the flexible array does not occur last in the structure, which
#     will help us prevent some kind of undefined behavior bugs from being
#     unadvertenly introduced[3] to the codebase from now on.
#     
#     All these instances of code were found with the help of the following
#     Coccinelle script:
#     
#     @@
#     identifier S, member, array;
#     type T1, T2;
#     @@
#     
#     struct S {
#       ...
#       T1 member;
#       T2 array[
#     - 0
#       ];
#     };
#     
#     [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
#     [2] https://github.com/KSPP/linux/issues/21
#     [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")
#     
#     Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
# < /opt/cross/kisskb/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-gcc --version
# < /opt/cross/kisskb/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-ld --version
# < git log --format=%s --max-count=1 56ca73e491a54bd7be10e398593977df9ee4d4ff
# < make -s -j 24 ARCH=arc O=/kisskb/build/gustavoars_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/kisskb/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  axs101_defconfig
# Added to kconfig CONFIG_INITRAMFS_SOURCE=""
# yes \n | make -s -j 24 ARCH=arc O=/kisskb/build/gustavoars_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/kisskb/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  oldconfig
yes: standard output: Broken pipe
# make -s -j 24 ARCH=arc O=/kisskb/build/gustavoars_axs101_defconfig_arcompact CROSS_COMPILE=/opt/cross/kisskb/arcompact-buildroot-2015.08.1/bin/arc-buildroot-linux-uclibc-  
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: missing braces around initializer [-Wmissing-braces]
  struct drm_dp_desc desc = { 0 };
         ^
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces]
/kisskb/src/net/ipv4/tcp_input.c: In function 'tcp_data_queue':
/kisskb/src/net/ipv4/tcp_input.c:4398:49: warning: array subscript is above array bounds [-Warray-bounds]
     tp->selective_acks[i-1] = tp->selective_acks[i];
                                                 ^
Completed OK
# rm -rf /kisskb/build/gustavoars_axs101_defconfig_arcompact
# Build took: 0:01:12.725670