# git rev-parse -q --verify 7100e8704b61247649c50551b965e71d168df30b^{commit}
7100e8704b61247649c50551b965e71d168df30b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7100e8704b61247649c50551b965e71d168df30b
# git clean -qxdf
# < git log -1
# commit 7100e8704b61247649c50551b965e71d168df30b
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Mar 29 17:42:57 2019 +1000
# 
#     powerpc/64s/radix: Fix radix segment exception handling
#     
#     Commit 48e7b76957 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     broke the radix-mode segment exception handler. In radix mode, this is
#     exception is not an SLB miss, rather it signals that the EA is outside
#     the range translated by any page table.
#     
#     The commit lost the radix feature alternate code patch, which can
#     cause faults to some EAs to kernel BUG at arch/powerpc/mm/slb.c:639!
#     
#     The original radix code would send faults to slb_miss_large_addr,
#     which would end up faulting due to slb_addr_limit being 0. This patch
#     sends radix directly to do_bad_slb_fault, which is a bit clearer.
#     
#     Fixes: 48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     Cc: stable@vger.kernel.org # v4.20+
#     Reported-by: Anton Blanchard <anton@samba.org>
#     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 7100e8704b61247649c50551b965e71d168df30b
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  randconfig
KCONFIG_SEED=0x28265900
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# Added to kconfig 
# yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/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/ipc/shm.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty':
/kisskb/src/include/linux/list.h:63:13: warning: 'head' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/f2fs/node.c:237:24: note: 'head' was declared here
/kisskb/src/drivers/char/tpm/tpm2-cmd.c: In function 'tpm2_unseal_trusted':
/kisskb/src/drivers/char/tpm/tpm.h:373:9: warning: 'blob_handle' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/char/tpm/tpm2-cmd.c:662:6: note: 'blob_handle' 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:337:21: note: 'pdeo' 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/fs/proc/inode.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/char/tpm/tpm2-cmd.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/lib/mpi/mpicoder.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/arch/powerpc/kernel/iommu.c:149:30: warning: 'fail_iommu_bus_notifier' defined but not used [-Wunused-variable]
/kisskb/src/fs/f2fs/node.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id':
/kisskb/src/drivers/hwspinlock/hwspinlock_core.c:328:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/hwspinlock/hwspinlock_core.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/arch/powerpc/kernel/kexec_elf_64.c: In function 'elf64_load':
/kisskb/src/arch/powerpc/kernel/kexec_elf_64.c:658:2: warning: 'fdt' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/powerpc/kernel/kexec_elf_64.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/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/gen_stats.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c: In function 'adc5_read_raw':
/kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c:398:7: warning: 'adc_code_volt' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/adc/qcom-spmi-adc5.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/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/drivers/i2c/i2c-core-base.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/iio/temperature/mlx90632.c: In function 'mlx90632_read_raw':
/kisskb/src/drivers/iio/temperature/mlx90632.c:349:37: warning: 'object_old_raw' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/temperature/mlx90632.c:430:56: note: 'object_old_raw' was declared here
/kisskb/src/drivers/iio/temperature/mlx90632.c:349:37: warning: 'object_new_raw' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/iio/temperature/mlx90632.c:430:40: note: 'object_new_raw' was declared here
/kisskb/src/drivers/iio/temperature/mlx90632.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3405:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work':
/kisskb/src/sound/soc/codecs/da7219-aad.c:321:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/da7219-aad.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/input/mouse/cyapa.c: In function 'cyapa_irq':
/kisskb/src/drivers/input/mouse/cyapa.c:717:27: warning: 'error' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/input/mouse/cyapa.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/input/mouse/cyapa_gen3.c: In function 'cyapa_gen3_set_power_mode':
/kisskb/src/drivers/input/mouse/cyapa_gen3.c:927:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/dev.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/input/mouse/cyapa_gen3.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/staging/erofs/data.c: In function 'erofs_raw_access_readpages':
/kisskb/src/drivers/staging/erofs/data.c:211:18: warning: 'last_block' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/staging/erofs/data.c:352:14: note: 'last_block' was declared here
/kisskb/src/drivers/staging/erofs/data.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/target/target_core_user.c: In function 'scatter_data_area':
/kisskb/src/drivers/target/target_core_user.c:664:29: warning: 'dbi' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/target/target_core_user.c:678:9: note: 'dbi' was declared here
/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/lib/rhashtable.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/target/target_core_user.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/input/touchscreen/hideep.c: In function 'hideep_update_fw':
/kisskb/src/drivers/input/touchscreen/hideep.c:633:3: warning: 'error' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/input/touchscreen/hideep.c:605:6: note: 'error' was declared here
/kisskb/src/drivers/input/touchscreen/hideep.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/drivers/usb/serial/ti_usb_3410_5052.c: In function 'ti_tx_empty':
/kisskb/src/drivers/usb/serial/ti_usb_3410_5052.c:874:20: warning: 'lsr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking':
/kisskb/src/sound/soc/codecs/wm8960.c:803:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/codecs/wm8960.c:800:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/serial/ti_usb_3410_5052.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
/kisskb/src/sound/soc/codecs/wm8960.c: At top level:
cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default]
arch/powerpc/perf/perf_regs.o: In function `perf_reg_value':
/kisskb/src/arch/powerpc/perf/perf_regs.c:84: undefined reference to `.is_sier_available'
make[1]: *** [/kisskb/src/Makefile:1024: vmlinux] Error 1
make: *** [Makefile:170: sub-make] Error 2
Command 'make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-fixes_powerpc-randconfig_powerpc-gcc4.6
# Build took: 0:00:56.249744