# git rev-parse -q --verify 7d6475051fb3d9339c5c760ed9883bc0a9048b21^{commit}
7d6475051fb3d9339c5c760ed9883bc0a9048b21
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7d6475051fb3d9339c5c760ed9883bc0a9048b21
# git clean -qxdf
# < git log -1
# commit 7d6475051fb3d9339c5c760ed9883bc0a9048b21
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Tue Oct 22 21:58:14 2019 +1000
# 
#     powerpc/powernv: Fix CPU idle to be called with IRQs disabled
#     
#     Commit e78a7614f3876 ("idle: Prevent late-arriving interrupts from
#     disrupting offline") changes arch_cpu_idle_dead to be called with
#     interrupts disabled, which triggers the WARN in pnv_smp_cpu_kill_self.
#     
#     Fix this by fixing up irq_happened after hard disabling, rather than
#     requiring there are no pending interrupts, similarly to what was done
#     done until commit 2525db04d1cc5 ("powerpc/powernv: Simplify lazy IRQ
#     handling in CPU offline").
#     
#     Fixes: e78a7614f3876 ("idle: Prevent late-arriving interrupts from disrupting offline")
#     Reported-by: Paul Mackerras <paulus@samba.org>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     [mpe: Add unexpected_mask rather than checking for known bad values,
#           change the WARN_ON() to a WARN_ON_ONCE()]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191022115814.22456-1-npiggin@gmail.com
# < /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 7d6475051fb3d9339c5c760ed9883bc0a9048b21
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mvme5100_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mvme5100_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mvme5100_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:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:157:19: 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:3407:15: warning: 'tail' 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:338:21: note: 'pdeo' was declared here
/kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init':
/kisskb/src/fs/cifs/smb2pdu.c:2703:19: warning: 'in_data_buf' 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:243:2: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' 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]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1526:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1749:46: note: 'linear' was declared here
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here
INFO: Uncompressed kernel (size 0x43d5e4) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mvme5100_defconfig_powerpc-gcc4.6
# Build took: 0:00:53.104994