# 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_ps3_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ps3_defconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ps3_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1686:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/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[<U5460>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U5460>]' was declared here
/kisskb/src/net/bluetooth/hidp/core.c: In function 'hidp_connection_add':
/kisskb/src/net/bluetooth/hidp/core.c:1381:18: warning: 'session' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl':
/kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3379:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/tx.c: In function 'ieee80211_build_hdr':
/kisskb/src/net/mac80211/tx.c:2502:27: warning: 'chanctx_conf' 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/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1513:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1470:6: note: 'pwr_level_cisco' was declared here
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ps3_defconfig_powerpc
# Build took: 0:01:42.003713