# git rev-parse -q --verify 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git fixes-test
# git rev-parse -q --verify 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931^{commit}
274cb1ca2e7ce02cab56f5f4c61a74aeb566f931
# git checkout -q -f -B kisskb 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931
# git clean -qxdf
# < git log -1
# commit 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931
# Author: Nathan Lynch <nathanl@linux.ibm.com>
# Date:   Mon Mar 15 03:00:45 2021 -0500
# 
#     powerpc/pseries/mobility: handle premature return from H_JOIN
#     
#     The pseries join/suspend sequence in its current form was written with
#     the assumption that it was the only user of H_PROD and that it needn't
#     handle spurious successful returns from H_JOIN. That's wrong;
#     powerpc's paravirt spinlock code uses H_PROD, and CPUs entering
#     do_join() can be woken prematurely from H_JOIN with a status of
#     H_SUCCESS as a result. This causes all CPUs to exit the sequence
#     early, preventing suspend from occurring at all.
#     
#     Add a 'done' boolean flag to the pseries_suspend_info struct, and have
#     the waking thread set it before waking the other threads. Threads
#     which receive H_SUCCESS from H_JOIN retry if the 'done' flag is still
#     unset.
#     
#     Fixes: 9327dc0aeef3 ("powerpc/pseries/mobility: use stop_machine for join/suspend")
#     Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20210315080045.460331-3-nathanl@linux.ibm.com
# < /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 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931
# < make -s -j 80 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  defconfig
# < make -s -j 80 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 80 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 80 ARCH=m68k O=/kisskb/build/powerpc-fixes_m68k-defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  
/kisskb/src/arch/m68k/mvme16x/config.c: In function 'mvme16x_hwclk':
/kisskb/src/arch/m68k/mvme16x/config.c:437:2: warning: #warning check me! [-Wcpp]
 #warning check me!
  ^~~~~~~
/kisskb/src/arch/m68k/mvme147/config.c: In function 'mvme147_hwclk':
/kisskb/src/arch/m68k/mvme147/config.c:172:2: warning: #warning check me! [-Wcpp]
 #warning check me!
  ^~~~~~~
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/powerpc-fixes_m68k-defconfig_m68k-gcc8
# Build took: 0:02:07.888696