# git rev-parse -q --verify 472e5b056f000a778abb41f1e443de58eb259783^{commit} 472e5b056f000a778abb41f1e443de58eb259783 already have revision, skipping fetch # git checkout -q -f -B kisskb 472e5b056f000a778abb41f1e443de58eb259783 # git clean -qxdf # < git log -1 # commit 472e5b056f000a778abb41f1e443de58eb259783 # Author: Linus Torvalds # Date: Thu Oct 1 19:14:36 2020 -0700 # # pipe: remove pipe_wait() and fix wakeup race with splice # # The pipe splice code still used the old model of waiting for pipe IO by # using a non-specific "pipe_wait()" that waited for any pipe event to # happen, which depended on all pipe IO being entirely serialized by the # pipe lock. So by checking the state you were waiting for, and then # adding yourself to the wait queue before dropping the lock, you were # guaranteed to see all the wakeups. # # Strictly speaking, the actual wakeups were not done under the lock, but # the pipe_wait() model still worked, because since the waiter held the # lock when checking whether it should sleep, it would always see the # current state, and the wakeup was always done after updating the state. # # However, commit 0ddad21d3e99 ("pipe: use exclusive waits when reading or # writing") split the single wait-queue into two, and in the process also # made the "wait for event" code wait for _two_ wait queues, and that then # showed a race with the wakers that were not serialized by the pipe lock. # # It's only splice that used that "pipe_wait()" model, so the problem # wasn't obvious, but Josef Bacik reports: # # "I hit a hang with fstest btrfs/187, which does a btrfs send into # /dev/null. This works by creating a pipe, the write side is given to # the kernel to write into, and the read side is handed to a thread that # splices into a file, in this case /dev/null. # # The box that was hung had the write side stuck here [pipe_write] and # the read side stuck here [splice_from_pipe_next -> pipe_wait]. # # [ more details about pipe_wait() scenario ] # # The problem is we're doing the prepare_to_wait, which sets our state # each time, however we can be woken up either with reads or writes. In # the case above we race with the WRITER waking us up, and re-set our # state to INTERRUPTIBLE, and thus never break out of schedule" # # Josef had a patch that avoided the issue in pipe_wait() by just making # it set the state only once, but the deeper problem is that pipe_wait() # depends on a level of synchonization by the pipe mutex that it really # shouldn't. And the whole "wait for any pipe state change" model really # isn't very good to begin with. # # So rather than trying to work around things in pipe_wait(), remove that # legacy model of "wait for arbitrary pipe event" entirely, and actually # create functions that wait for the pipe actually being readable or # writable, and can do so without depending on the pipe lock serializing # everything. # # Fixes: 0ddad21d3e99 ("pipe: use exclusive waits when reading or writing") # Link: https://lore.kernel.org/linux-fsdevel/bfa88b5ad6f069b2b679316b9e495a970130416c.1601567868.git.josef@toxicpanda.com/ # Reported-by: Josef Bacik # Reviewed-and-tested-by: Josef Bacik # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 472e5b056f000a778abb41f1e443de58eb259783 # < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_OPTIMIZE_INLINING=n # Added to kconfig # < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb.dts:251.22-254.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:43.7-68.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:52.9-67.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:135.22-137.4: Warning (pci_bridge): /pcie@f1008000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:92.7-117.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:102.9-116.4: Warning (pci_bridge): /pcie@f1008000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:139.22-141.4: Warning (pci_bridge): /pcie@f1009000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@f1009000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:30.11-32.6: Warning (i2c_bus_reg): /soc@f1000000/i2c@3000/rtc@68: missing or empty reg property /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:34.22-37.4: Warning (pci_bridge): /pci@fe0008000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:43.7-51.3 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:39.22-42.4: Warning (pci_bridge): /pci@fe0009000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:54.7-62.3 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:44.23-47.4: Warning (pci_bridge): /pcie@fe000a000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:65.7-90.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:74.9-89.4: Warning (pci_bridge): /pcie@fe000a000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/ppa8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o2dnt2.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o2dnt2.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/gef_sbc610.dts:209.22-211.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/gef_sbc610.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o3dnt.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o3dnt.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/stxssa8555.dts:329.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/mpc8610_hpcd.dts:420.3-21: Warning (pci_device_bus_num): /pcie@e000a000/pcie@0:bus-range: PCI bus number 0 out of range, expected (1 - 1) /kisskb/src/arch/powerpc/boot/dts/fsl/gef_ppc9a.dts:211.22-213.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/gef_ppc9a.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o2mnt.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o2mnt.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:132.23-134.4: Warning (pci_bridge): /pcie@ffe200000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:58.7-84.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:68.9-83.4: Warning (pci_bridge): /pcie@ffe200000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:136.23-138.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:87.7-113.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:140.23-142.4: Warning (pci_bridge): /pcie@ffe202000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:116.7-142.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:126.9-141.4: Warning (pci_bridge): /pcie@ffe202000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/oca4080.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:189.11-193.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@0: SPI bus unit address format error, expected "1" /kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:195.11-199.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@1: SPI bus unit address format error, expected "2" /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dts:59.23-62.4: Warning (pci_bridge): /pcie@fffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@fffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dts:59.22-62.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/a3m071.dts:135.15-137.4 arch/powerpc/boot/dts/a3m071.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o2i.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o2i.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o2d300.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o2d300.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:457.13-466.5: Warning (spi_bus_bridge): /soc@80000000/psc@11900: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/pdm360ng.dts:172.13-185.5 arch/powerpc/boot/dts/pdm360ng.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/o2d.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:182.18-186.5: Warning (spi_bus_bridge): /soc5200@f0000000/psc@2000: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/o2d.dtsi:32.12-43.5 arch/powerpc/boot/dts/o2d.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/cm5200.dts:70.15-72.4 arch/powerpc/boot/dts/cm5200.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/kmcoge4.dts:196.23-198.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:87.7-113.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/kmcoge4.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/motionpro.dts:84.15-86.4 arch/powerpc/boot/dts/motionpro.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/bluestone.dts:272.13-277.7: Warning (i2c_bus_reg): /plb/opb/i2c@ef600700/sttm@4C: I2C bus unit address format error, expected "4c" /kisskb/src/arch/powerpc/boot/dts/mpc5200b.dtsi:267.20-280.4: Warning (pci_bridge): /pci@f0000d00: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/uc101.dts:100.15-102.4 arch/powerpc/boot/dts/uc101.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/xpedite5200_xmon.dts:139.11-142.6: Warning (i2c_bus_reg): /soc@ef000000/i2c@3000/dtt@48: I2C bus unit address format error, expected "34" /kisskb/src/arch/powerpc/boot/dts/xpedite5200.dts:135.11-138.6: Warning (i2c_bus_reg): /soc@ef000000/i2c@3000/dtt@48: I2C bus unit address format error, expected "34" /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:397.13-406.5: Warning (spi_bus_bridge): /soc@80000000/psc@11400: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:305.19-326.5 /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:409.13-418.5: Warning (spi_bus_bridge): /soc@80000000/psc@11500: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:329.19-344.5 arch/powerpc/boot/dts/ac14xx.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/mgcoge.dts:230.14-234.7: Warning (spi_bus_reg): /soc@f0000000/cpm@119c0/spi@11aa0/ds3106@1: SPI bus unit address format error, expected "0" WARNING: 136 bad relocations c000000001ee2eab R_PPC64_UADDR64 .rodata+0x00000000005d9118 c000000001ee2ec6 R_PPC64_UADDR64 .rodata+0x00000000005d9160 c000000001ee2ee1 R_PPC64_UADDR64 .rodata+0x00000000005d9170 c000000001ee2efc R_PPC64_UADDR64 .rodata+0x00000000005d9180 c000000001ee2f17 R_PPC64_UADDR64 .rodata+0x00000000005d9190 c000000001ee2f32 R_PPC64_UADDR64 .rodata+0x00000000005d91a0 c000000001ee2f4d R_PPC64_UADDR64 .rodata+0x00000000005d91b0 c000000001ee2f83 R_PPC64_UADDR64 .rodata+0x00000000005d91d0 c000000001ee2f9e R_PPC64_UADDR64 .rodata+0x00000000005d91e0 c000000001ee2fb9 R_PPC64_UADDR64 .rodata+0x00000000005d91e8 c000000001ee2fd4 R_PPC64_UADDR64 .rodata+0x00000000005d91f0 c000000001ee2fef R_PPC64_UADDR64 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c000000001ee320b R_PPC64_UADDR64 .rodata+0x00000000005d9338 c000000001ee3226 R_PPC64_UADDR64 .rodata+0x00000000005d9348 c000000001ee3241 R_PPC64_UADDR64 .rodata+0x00000000005d9358 c000000001ee325c R_PPC64_UADDR64 .rodata+0x00000000005d9368 c000000001ee3277 R_PPC64_UADDR64 .rodata+0x00000000005d9378 c000000001ee3292 R_PPC64_UADDR64 .rodata+0x00000000005d9388 c000000001ee32ad R_PPC64_UADDR64 .rodata+0x00000000005d9398 c000000001ee32e3 R_PPC64_UADDR64 .rodata+0x00000000005d93b8 c000000001ee32fe R_PPC64_UADDR64 .rodata+0x00000000005d93c8 c000000001ee3319 R_PPC64_UADDR64 .rodata+0x00000000005d93d8 c000000001ee3334 R_PPC64_UADDR64 .rodata+0x00000000005d93e8 c000000001ee334f R_PPC64_UADDR64 .rodata+0x00000000005d93f8 c000000001ee336a R_PPC64_UADDR64 .rodata+0x00000000005d9408 c000000001ee3385 R_PPC64_UADDR64 .rodata+0x00000000005d9418 c000000001ee33bb R_PPC64_UADDR64 .rodata+0x00000000005d9438 c000000001ee33d6 R_PPC64_UADDR64 .rodata+0x00000000005d9448 c000000001ee33f1 R_PPC64_UADDR64 .rodata+0x00000000005d9458 c000000001ee340c R_PPC64_UADDR64 .rodata+0x00000000005d9468 c000000001ee3427 R_PPC64_UADDR64 .rodata+0x00000000005d9478 c000000001ee3442 R_PPC64_UADDR64 .rodata+0x00000000005d9488 c000000001ee345d R_PPC64_UADDR64 .rodata+0x00000000005d9498 c000000001ee3493 R_PPC64_UADDR64 .rodata+0x00000000005d94b8 c000000001ee34ae R_PPC64_UADDR64 .rodata+0x00000000005d94c8 c000000001ee34c9 R_PPC64_UADDR64 .rodata+0x00000000005d94d8 c000000001ee34e4 R_PPC64_UADDR64 .rodata+0x00000000005d94e8 c000000001ee34ff R_PPC64_UADDR64 .rodata+0x00000000005d94f8 c000000001ee351a R_PPC64_UADDR64 .rodata+0x00000000005d9508 c000000001ee3535 R_PPC64_UADDR64 .rodata+0x00000000005d9518 c000000001ee356b R_PPC64_UADDR64 .rodata+0x00000000005d9538 c000000001ee3586 R_PPC64_UADDR64 .rodata+0x00000000005d9548 c000000001ee35a1 R_PPC64_UADDR64 .rodata+0x00000000005d9558 c000000001ee35bc R_PPC64_UADDR64 .rodata+0x00000000005d9568 c000000001ee35d7 R_PPC64_UADDR64 .rodata+0x00000000005d9578 c000000001ee35f2 R_PPC64_UADDR64 .rodata+0x00000000005d9588 c000000001ee360d R_PPC64_UADDR64 .rodata+0x00000000005d9598 c000000001ee3643 R_PPC64_UADDR64 .rodata+0x00000000005d95b8 c000000001ee365e R_PPC64_UADDR64 .rodata+0x00000000005d95c8 c000000001ee3679 R_PPC64_UADDR64 .rodata+0x00000000005d95d8 c000000001ee3694 R_PPC64_UADDR64 .rodata+0x00000000005d95e8 c000000001ee36af R_PPC64_UADDR64 .rodata+0x00000000005d95f8 c000000001ee36ca R_PPC64_UADDR64 .rodata+0x00000000005d9608 c000000001ee36e5 R_PPC64_UADDR64 .rodata+0x00000000005d9620 c000000001ee371b R_PPC64_UADDR64 .rodata+0x00000000005d9640 c000000001ee3736 R_PPC64_UADDR64 .rodata+0x00000000005d9650 c000000001ee3751 R_PPC64_UADDR64 .rodata+0x00000000005d9660 c000000001ee376c R_PPC64_UADDR64 .rodata+0x00000000005d9678 c000000001ee3787 R_PPC64_UADDR64 .rodata+0x00000000005d9680 c000000001ee37a2 R_PPC64_UADDR64 .rodata+0x00000000005d9690 c000000001ee37bd R_PPC64_UADDR64 .rodata+0x00000000005d96a0 c000000001ee37f3 R_PPC64_UADDR64 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c000000001ee39f4 R_PPC64_UADDR64 .rodata+0x00000000005d97f8 c000000001ee3a0f R_PPC64_UADDR64 .rodata+0x00000000005d9808 c000000001ee3a2a R_PPC64_UADDR64 .rodata+0x00000000005d9818 c000000001ee3a45 R_PPC64_UADDR64 .rodata+0x00000000005d9828 c000000001ee3a7b R_PPC64_UADDR64 .rodata+0x00000000005d9848 c000000001ee3a96 R_PPC64_UADDR64 .rodata+0x00000000005d9858 c000000001ee3ab1 R_PPC64_UADDR64 .rodata+0x00000000005d9868 c000000001ee3acc R_PPC64_UADDR64 .rodata+0x00000000005d9878 c000000001ee3ae7 R_PPC64_UADDR64 .rodata+0x00000000005d9888 c000000001ee3b02 R_PPC64_UADDR64 .rodata+0x00000000005d9898 c000000001ee3b1d R_PPC64_UADDR64 .rodata+0x00000000005d98a8 c000000001ee3b53 R_PPC64_UADDR64 .rodata+0x00000000005d98c8 c000000001ee3b6e R_PPC64_UADDR64 .rodata+0x00000000005d98d8 c000000001ee3b89 R_PPC64_UADDR64 .rodata+0x00000000005d98e8 c000000001ee3ba4 R_PPC64_UADDR64 .rodata+0x00000000005d98f8 c000000001ee3bbf R_PPC64_UADDR64 .rodata+0x00000000005d9908 c000000001ee3bda R_PPC64_UADDR64 .rodata+0x00000000005d9918 c000000001ee3bf5 R_PPC64_UADDR64 .rodata+0x00000000005d9928 c000000001ee3c2b R_PPC64_UADDR64 .rodata+0x00000000005d9948 c000000001ee3c46 R_PPC64_UADDR64 .rodata+0x00000000005d9958 c000000001ee3c61 R_PPC64_UADDR64 .rodata+0x00000000005d9968 c000000001ee3c7c R_PPC64_UADDR64 .rodata+0x00000000005d9978 c000000001ee3c97 R_PPC64_UADDR64 .rodata+0x00000000005d9988 c000000001ee3cb2 R_PPC64_UADDR64 .rodata+0x00000000005d9998 c000000001ee3ccd R_PPC64_UADDR64 .rodata+0x00000000005d99a8 c000000001ee3d03 R_PPC64_UADDR64 .rodata+0x00000000005d99c8 c000000001ee3d1e R_PPC64_UADDR64 .rodata+0x00000000005d99d8 c000000001ee3d39 R_PPC64_UADDR64 .rodata+0x00000000005d99e8 c000000001ee3d54 R_PPC64_UADDR64 .rodata+0x00000000005d99f8 c000000001ee3d6f R_PPC64_UADDR64 .rodata+0x00000000005d9a08 c000000001ee3d8a R_PPC64_UADDR64 .rodata+0x00000000005d9a18 c000000001ee3da5 R_PPC64_UADDR64 .rodata+0x00000000005d9a28 c000000001ee3ddb R_PPC64_UADDR64 .rodata+0x00000000005d9a48 c000000001ee3df6 R_PPC64_UADDR64 .rodata+0x00000000005d9a58 c000000001ee3e11 R_PPC64_UADDR64 .rodata+0x00000000005d9a68 c000000001ee3e2c R_PPC64_UADDR64 .rodata+0x00000000005d9a80 c000000001ee3e47 R_PPC64_UADDR64 .rodata+0x00000000005d9a90 c000000001ee3e62 R_PPC64_UADDR64 .rodata+0x00000000005d9aa0 c000000001ee3e7d R_PPC64_UADDR64 .rodata+0x00000000005d9ab0 c000000001ee3eb3 R_PPC64_UADDR64 .rodata+0x00000000005d9ad0 c000000001ee3ece R_PPC64_UADDR64 .rodata+0x00000000005d9ae0 c000000001ee3ee9 R_PPC64_UADDR64 .rodata+0x00000000005d9af0 WARNING: You need at least binutils >= 2.19 to build a CONFIG_RELOCATABLE kernel Completed OK # rm -rf /kisskb/build/linus_powerpc-allmodconfig_powerpc-gcc9 # Build took: 0:48:56.190646