# git rev-parse -q --verify a979522a1a88556e42a22ce61bccc58e304cb361^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
# git rev-parse -q --verify a979522a1a88556e42a22ce61bccc58e304cb361^{commit}
a979522a1a88556e42a22ce61bccc58e304cb361
# git checkout -q -f -B kisskb a979522a1a88556e42a22ce61bccc58e304cb361
# git clean -qxdf
# < git log -1
# commit a979522a1a88556e42a22ce61bccc58e304cb361
# Author: Matthias Maennich <maennich@google.com>
# Date:   Sat Jun 12 15:18:38 2021 +0100
# 
#     kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
#     
#     To avoid unnecessary recompilations, mkcompile_h does not regenerate
#     compile.h if just the timestamp changed.
#     Though, if KBUILD_BUILD_TIMESTAMP is set, an explicit timestamp for the
#     build was requested, in which case we should not ignore it.
#     
#     If a user follows the documentation for reproducible builds [1] and
#     defines KBUILD_BUILD_TIMESTAMP as the git commit timestamp, a clean
#     build will have the correct timestamp. A subsequent cherry-pick (or
#     amend) changes the commit timestamp and if an incremental build is done
#     with a different KBUILD_BUILD_TIMESTAMP now, that new value is not taken
#     into consideration. But it should for reproducibility.
#     
#     Hence, whenever KBUILD_BUILD_TIMESTAMP is explicitly set, do not ignore
#     UTS_VERSION when making a decision about whether the regenerated version
#     of compile.h should be moved into place.
#     
#     [1] https://www.kernel.org/doc/html/latest/kbuild/reproducible-builds.html
#     
#     Signed-off-by: Matthias Maennich <maennich@google.com>
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 a979522a1a88556e42a22ce61bccc58e304cb361
# < make -s -j 24 ARCH=m68k O=/kisskb/build/kbuild_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  defconfig
# < make -s -j 24 ARCH=m68k O=/kisskb/build/kbuild_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 24 ARCH=m68k O=/kisskb/build/kbuild_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 24 ARCH=m68k O=/kisskb/build/kbuild_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  
/kisskb/src/arch/m68k/mvme147/config.c: In function 'mvme147_hwclk':
/kisskb/src/arch/m68k/mvme147/config.c:174:2: warning: #warning check me! [-Wcpp]
 #warning check me!
  ^~~~~~~
/kisskb/src/arch/m68k/mvme16x/config.c: In function 'mvme16x_hwclk':
/kisskb/src/arch/m68k/mvme16x/config.c:439:2: warning: #warning check me! [-Wcpp]
 #warning check me!
  ^~~~~~~
/kisskb/src/drivers/i2c/busses/i2c-icy.c: In function 'icy_probe':
/kisskb/src/drivers/i2c/busses/i2c-icy.c:126:24: warning: unused variable 'new_fwnode' [-Wunused-variable]
  struct fwnode_handle *new_fwnode;
                        ^~~~~~~~~~
In file included from /kisskb/src/drivers/net/ethernet/8390/xsurf100.c:48:
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:995:27: warning: '____alloc_ei_netdev' defined but not used [-Wunused-function]
 static struct net_device *____alloc_ei_netdev(int size)
                           ^~~~~~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:957:13: warning: '__ei_set_multicast_list' defined but not used [-Wunused-function]
 static void __ei_set_multicast_list(struct net_device *dev)
             ^~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:857:33: warning: '__ei_get_stats' defined but not used [-Wunused-function]
 static struct net_device_stats *__ei_get_stats(struct net_device *dev)
                                 ^~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:512:13: warning: '__ei_poll' defined but not used [-Wunused-function]
 static void __ei_poll(struct net_device *dev)
             ^~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:303:20: warning: '__ei_start_xmit' defined but not used [-Wunused-function]
 static netdev_tx_t __ei_start_xmit(struct sk_buff *skb,
                    ^~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:257:13: warning: '__ei_tx_timeout' defined but not used [-Wunused-function]
 static void __ei_tx_timeout(struct net_device *dev, unsigned int txqueue)
             ^~~~~~~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:233:12: warning: '__ei_close' defined but not used [-Wunused-function]
 static int __ei_close(struct net_device *dev)
            ^~~~~~~~~~
/kisskb/src/drivers/net/ethernet/8390/lib8390.c:204:12: warning: '__ei_open' defined but not used [-Wunused-function]
 static int __ei_open(struct net_device *dev)
            ^~~~~~~~~
Completed OK
# rm -rf /kisskb/build/kbuild_m68k-defconfig_m68k-gcc8
# Build took: 0:02:55.008424