# git rev-parse -q --verify a00196a272161338d4b1d66ec69e3d57c6b280e0^{commit}
a00196a272161338d4b1d66ec69e3d57c6b280e0
already have revision, skipping fetch
# git checkout -q -f -B kisskb a00196a272161338d4b1d66ec69e3d57c6b280e0
# git clean -qxdf
# < git log -1
# commit a00196a272161338d4b1d66ec69e3d57c6b280e0
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Jun 7 13:56:36 2019 +1000
# 
#     powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate()
#     
#     The change to pmdp_invalidate() to mark the pmd with _PAGE_INVALID
#     broke the synchronisation against lock free lookups,
#     __find_linux_pte()'s pmd_none() check no longer returns true for such
#     cases.
#     
#     Fix this by adding a check for this condition as well.
#     
#     Fixes: da7ad366b497 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit")
#     Cc: stable@vger.kernel.org # v4.20+
#     Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 a00196a272161338d4b1d66ec69e3d57c6b280e0
# < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  83xx/asp8347_defconfig
# make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2589:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1850:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1658:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:331:21: note: 'pdeo' was declared here
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
INFO: Uncompressed kernel (size 0x57cd44) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_powerpc-gcc4.6
# Build took: 0:00:21.870259