# git rev-parse -q --verify f871bcb1c5a9888b433d57c8b41c71ab89e40c4f^{commit}
f871bcb1c5a9888b433d57c8b41c71ab89e40c4f
already have revision, skipping fetch
# git checkout -q -f -B kisskb f871bcb1c5a9888b433d57c8b41c71ab89e40c4f
# git clean -qxdf
# < git log -1
# commit f871bcb1c5a9888b433d57c8b41c71ab89e40c4f
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
# Date:   Fri Mar 23 10:26:27 2018 +0530
# 
#     powerpc/mm: Fixup tlbie vs store ordering issue on POWER9
#     
#     On POWER9, under some circumstances, a broadcast TLB invalidation
#     might complete before all previous stores have drained, potentially
#     allowing stale stores from becoming visible after the invalidation.
#     This works around it by doubling up those TLB invalidations which was
#     verified by HW to be sufficient to close the risk window.
#     
#     Fixes: 1a472c9dba6b ("powerpc/mm/radix: Add tlbflush routines")
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
#     [mpe: Enable the feature in the DT CPU features code for all Power9]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 f871bcb1c5a9888b433d57c8b41c71ab89e40c4f
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_c2k_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  c2k_defconfig
warning: (PPC_C2K && AMIGAONE) selects NOT_COHERENT_CACHE which has unmet direct dependencies (4xx || PPC_8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON)
warning: (PPC_C2K && AMIGAONE) selects NOT_COHERENT_CACHE which has unmet direct dependencies (4xx || PPC_8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON)
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_c2k_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
warning: (PPC_C2K && AMIGAONE) selects NOT_COHERENT_CACHE which has unmet direct dependencies (4xx || PPC_8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON)
warning: (PPC_C2K && AMIGAONE) selects NOT_COHERENT_CACHE which has unmet direct dependencies (4xx || PPC_8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON)
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1820:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1730:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec':
/kisskb/src/net/bridge/br_netlink.c:635:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
INFO: Uncompressed kernel (size 0x6b3e94) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
Image Name:   Linux-4.16.0-rc2-gf871bcb
Created:      Fri Mar 23 17:37:00 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    3245112 Bytes = 3169.05 kB = 3.09 MB
Load Address: 00700000
Entry Point:  007004fc
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_c2k_defconfig_powerpc
# Build took: 0:01:25.112082