# git rev-parse -q --verify 95edc4da89c32317b6ce22c90cb4793d3646565d^{commit}
95edc4da89c32317b6ce22c90cb4793d3646565d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 95edc4da89c32317b6ce22c90cb4793d3646565d
# git clean -qxdf
# < git log -1
# commit 95edc4da89c32317b6ce22c90cb4793d3646565d
# Author: Anshuman Khandual <khandual@linux.vnet.ibm.com>
# Date:   Thu Mar 29 11:53:37 2018 +0530
# 
#     powerpc/fscr: Enable interrupts earlier before calling get_user()
#     
#     The function get_user() can sleep while trying to fetch instruction
#     from user address space and causes the following warning from the
#     scheduler.
#     
#     BUG: sleeping function called from invalid context
#     
#     Though interrupts get enabled back but it happens bit later after
#     get_user() is called. This change moves enabling these interrupts
#     earlier covering the function get_user(). While at this, lets check
#     for kernel mode and crash as this interrupt should not have been
#     triggered from the kernel context.
#     
#     Signed-off-by: Anshuman Khandual <khandual@linux.vnet.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
# < git log --format=%s --max-count=1 95edc4da89c32317b6ce22c90cb4793d3646565d
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_mvme5100_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mvme5100_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_mvme5100_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:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'SyS_shmdt':
/kisskb/src/ipc/shm.c:1565:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c:1487:15: note: 'file' was declared here
/kisskb/src/kernel/time/tick-sched.c: In function 'tick_nohz_idle_exit':
/kisskb/src/kernel/time/tick-sched.c:639:17: warning: 'now' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/time/tick-sched.c:1059:10: note: 'now' was declared here
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:269:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:234:28: note: 'next' was declared here
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1816:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1529:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1726:46: note: 'linear' was declared here
/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/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:246:2: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here
/kisskb/src/net/core/flow_dissector.c: In function '__skb_flow_dissect':
/kisskb/src/net/core/flow_dissector.c:789:7: warning: 'vlan' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:157:15: warning: 'c' 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:3149:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
INFO: Uncompressed kernel (size 0x40fecc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Completed OK
# rm -rf /kisskb/build/powerpc-next_mvme5100_defconfig_powerpc
# Build took: 0:00:24.680549