# git rev-parse -q --verify e41b93a6be57e26a4a123345f826a6ac3a213551^{commit}
e41b93a6be57e26a4a123345f826a6ac3a213551
already have revision, skipping fetch
# git checkout -q -f -B kisskb e41b93a6be57e26a4a123345f826a6ac3a213551
# git clean -qxdf
# < git log -1
# commit e41b93a6be57e26a4a123345f826a6ac3a213551
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Mon Dec 3 19:55:55 2018 +1100
# 
#     powerpc/boot: Fix build failures with -j 1
#     
#     In commit 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to
#     wrapper") we added a dependency to serial.c on autoconf.h:
#     
#       $(obj)/serial.c: $(obj)/autoconf.h
#     
#     This works when building in-tree (ie. with KBUILD_OUTPUT unset)
#     because the obj tree is the src tree.
#     
#     But when building with eg. O=build and -j 1 the build fails:
#     
#       gcc ... -I../arch/powerpc/boot -c -o arch/powerpc/boot/serial.o arch/powerpc/boot/serial.c
#       gcc: error: arch/powerpc/boot/serial.c: No such file or directory
#     
#     Why this is only happening with -j 1 is not clear, when building with
#     -j greater than 1 somehow we decide to look for serial.c in the src
#     tree (../), eg:
#     
#       gcc -I../arch/powerpc/boot -c -o arch/powerpc/boot/serial.o ../arch/powerpc/boot/serial.c
#     
#     Regardless we shouldn't be specifying a dependency on serial.c in the
#     build tree, we want to add a dependency to the version in $(srctree)
#     so fix the rule to say that.
#     
#     Fixes: 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to wrapper")
#     Tested-by: Daniel Axtens <dja@axtens.net>
#     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 e41b93a6be57e26a4a123345f826a6ac3a213551
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/currituck_defconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc 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:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:152:32: warning: 'levelspread[<U9000>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U9000>]' was declared here
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: 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:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/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:341:21: 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
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_bridge): /plb/pciex@30100000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_bridge): /plb/pciex@38100000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc
# Build took: 0:01:12.457917