# git rev-parse -q --verify 4d202c8c8ed3822327285747db1765967110b274^{commit} 4d202c8c8ed3822327285747db1765967110b274 already have revision, skipping fetch # git checkout -q -f -B kisskb 4d202c8c8ed3822327285747db1765967110b274 # git clean -qxdf # < git log -1 # commit 4d202c8c8ed3822327285747db1765967110b274 # Author: Gautham R. Shenoy # Date: Wed Jul 17 16:05:24 2019 +0530 # # powerpc/xive: Fix loop exit-condition in xive_find_target_in_mask() # # xive_find_target_in_mask() has the following for(;;) loop which has a # bug when @first == cpumask_first(@mask) and condition 1 fails to hold # for every CPU in @mask. In this case we loop forever in the for-loop. # # first = cpu; # for (;;) { # if (cpu_online(cpu) && xive_try_pick_target(cpu)) // condition 1 # return cpu; # cpu = cpumask_next(cpu, mask); # if (cpu == first) // condition 2 # break; # # if (cpu >= nr_cpu_ids) // condition 3 # cpu = cpumask_first(mask); # } # # This is because, when @first == cpumask_first(@mask), we never hit the # condition 2 (cpu == first) since prior to this check, we would have # executed "cpu = cpumask_next(cpu, mask)" which will set the value of # @cpu to a value greater than @first or to nr_cpus_ids. When this is # coupled with the fact that condition 1 is not met, we will never exit # this loop. # # This was discovered by the hard-lockup detector while running LTP test # concurrently with SMT switch tests. # # watchdog: CPU 12 detected hard LOCKUP on other CPUs 68 # watchdog: CPU 12 TB:85587019220796, last SMP heartbeat TB:85578827223399 (15999ms ago) # watchdog: CPU 68 Hard LOCKUP # watchdog: CPU 68 TB:85587019361273, last heartbeat TB:85576815065016 (19930ms ago) # CPU: 68 PID: 45050 Comm: hxediag Kdump: loaded Not tainted 4.18.0-100.el8.ppc64le #1 # NIP: c0000000006f5578 LR: c000000000cba9ec CTR: 0000000000000000 # REGS: c000201fff3c7d80 TRAP: 0100 Not tainted (4.18.0-100.el8.ppc64le) # MSR: 9000000002883033 CR: 24028424 XER: 00000000 # CFAR: c0000000006f558c IRQMASK: 1 # GPR00: c0000000000afc58 c000201c01c43400 c0000000015ce500 c000201cae26ec18 # GPR04: 0000000000000800 0000000000000540 0000000000000800 00000000000000f8 # GPR08: 0000000000000020 00000000000000a8 0000000080000000 c00800001a1beed8 # GPR12: c0000000000b1410 c000201fff7f4c00 0000000000000000 0000000000000000 # GPR16: 0000000000000000 0000000000000000 0000000000000540 0000000000000001 # GPR20: 0000000000000048 0000000010110000 c00800001a1e3780 c000201cae26ed18 # GPR24: 0000000000000000 c000201cae26ed8c 0000000000000001 c000000001116bc0 # GPR28: c000000001601ee8 c000000001602494 c000201cae26ec18 000000000000001f # NIP [c0000000006f5578] find_next_bit+0x38/0x90 # LR [c000000000cba9ec] cpumask_next+0x2c/0x50 # Call Trace: # [c000201c01c43400] [c000201cae26ec18] 0xc000201cae26ec18 (unreliable) # [c000201c01c43420] [c0000000000afc58] xive_find_target_in_mask+0x1b8/0x240 # [c000201c01c43470] [c0000000000b0228] xive_pick_irq_target.isra.3+0x168/0x1f0 # [c000201c01c435c0] [c0000000000b1470] xive_irq_startup+0x60/0x260 # [c000201c01c43640] [c0000000001d8328] __irq_startup+0x58/0xf0 # [c000201c01c43670] [c0000000001d844c] irq_startup+0x8c/0x1a0 # [c000201c01c436b0] [c0000000001d57b0] __setup_irq+0x9f0/0xa90 # [c000201c01c43760] [c0000000001d5aa0] request_threaded_irq+0x140/0x220 # [c000201c01c437d0] [c00800001a17b3d4] bnx2x_nic_load+0x188c/0x3040 [bnx2x] # [c000201c01c43950] [c00800001a187c44] bnx2x_self_test+0x1fc/0x1f70 [bnx2x] # [c000201c01c43a90] [c000000000adc748] dev_ethtool+0x11d8/0x2cb0 # [c000201c01c43b60] [c000000000b0b61c] dev_ioctl+0x5ac/0xa50 # [c000201c01c43bf0] [c000000000a8d4ec] sock_do_ioctl+0xbc/0x1b0 # [c000201c01c43c60] [c000000000a8dfb8] sock_ioctl+0x258/0x4f0 # [c000201c01c43d20] [c0000000004c9704] do_vfs_ioctl+0xd4/0xa70 # [c000201c01c43de0] [c0000000004ca274] sys_ioctl+0xc4/0x160 # [c000201c01c43e30] [c00000000000b388] system_call+0x5c/0x70 # Instruction dump: # 78aad182 54a806be 3920ffff 78a50664 794a1f24 7d294036 7d43502a 7d295039 # 4182001c 48000034 78a9d182 79291f24 <7d23482a> 2fa90000 409e0020 38a50040 # # To fix this, move the check for condition 2 after the check for # condition 3, so that we are able to break out of the loop soon after # iterating through all the CPUs in the @mask in the problem case. Use # do..while() to achieve this. # # Fixes: 243e25112d06 ("powerpc/xive: Native exploitation of the XIVE interrupt controller") # Cc: stable@vger.kernel.org # v4.12+ # Reported-by: Indira P. Joga # Signed-off-by: Gautham R. Shenoy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/1563359724-13931-1-git-send-email-ego@linux.vnet.ibm.com # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 4d202c8c8ed3822327285747db1765967110b274 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- allyesconfig # Added to kconfig CONFIG_PROFILE_ALL_BRANCHES=n # Added to kconfig CONFIG_ENABLE_WARN_DEPRECATED=n # Added to kconfig CONFIG_ENABLE_MUST_CHECK=n # Added to kconfig CONFIG_DEBUG_INFO=n # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # yes \n | make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/virtex440-ml510.dts:335.37-439.6: Warning (pci_bridge): /plb@0/plbv46-pci@85e00000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/virtex440-ml510.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /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/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/icon.dts:318.26-357.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/icon.dts:359.26-398.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/icon.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/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/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/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/makalu.dts:271.25-310.5: Warning (pci_bridge): /plb/pciex@a0000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/makalu.dts:312.25-351.5: Warning (pci_bridge): /plb/pciex@c0000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/makalu.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /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) 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/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" /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/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/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/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/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/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) 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/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/fsl/kmcent2.dts:259.23-261.4: Warning (pci_bridge): /pcie@ffe250000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:85.7-109.3 /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:93.9-108.4: Warning (pci_bridge): /pcie@ffe250000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/kmcent2.dts:263.23-265.4: Warning (pci_bridge): /pcie@ffe260000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:111.7-135.3 /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:119.9-134.4: Warning (pci_bridge): /pcie@ffe260000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/kmcent2.dts:267.23-269.4: Warning (pci_bridge): /pcie@ffe270000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:137.7-161.3 /kisskb/src/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi:145.9-160.4: Warning (pci_bridge): /pcie@ffe270000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/kmcent2.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/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/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/haleakala.dts:240.25-279.5: Warning (pci_bridge): /plb/pciex@a0000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/haleakala.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/bluestone.dts:328.26-368.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/bluestone.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/katmai.dts:322.26-361.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/katmai.dts:363.26-402.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/katmai.dts:404.26-443.5: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/katmai.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/currituck.dts:125.28-161.5: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/currituck.dts:163.28-198.5: Warning (pci_bridge): /plb/pciex@30100000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/currituck.dts:200.28-235.5: Warning (pci_bridge): /plb/pciex@38100000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/currituck.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /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/akebono.dts:251.28-289.5: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/akebono.dts:291.28-329.5: Warning (pci_bridge): /plb/pciex@20100000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/akebono.dts:331.28-369.5: Warning (pci_bridge): /plb/pciex@18100000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/akebono.dts:371.28-409.5: Warning (pci_bridge): /plb/pciex@28100000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/akebono.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /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/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/canyonlands.dts:464.26-504.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/canyonlands.dts:506.26-546.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/canyonlands.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/glacier.dts:492.26-532.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/glacier.dts:534.26-574.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/glacier.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/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/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/redwood.dts:238.26-277.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/redwood.dts:279.26-318.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/redwood.dts:320.26-359.5: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/redwood.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/kilauea.dts:325.25-364.5: Warning (pci_bridge): /plb/pciex@a0000000: node name is not "pci" or "pcie" /kisskb/src/arch/powerpc/boot/dts/kilauea.dts:366.25-405.5: Warning (pci_bridge): /plb/pciex@c0000000: node name is not "pci" or "pcie" arch/powerpc/boot/dts/kilauea.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/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/xpedite5200.dts:135.11-138.6: Warning (i2c_bus_reg): /soc@ef000000/i2c@3000/dtt@48: I2C bus unit address format error, expected "34" :1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /kisskb/src/sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get': /kisskb/src/sound/aoa/codecs/onyx.c:377:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; ^ In file included from /kisskb/src/include/linux/io.h:13:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:14: /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/arch/powerpc/include/asm/io.h:600:3: warning: 'px_is' may be used uninitialized in this function [-Wmaybe-uninitialized] ppc_pci_io.name al; \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:88:14: note: 'px_is' was declared here u32 px_cmd, px_is, px_val; ^ In file included from /kisskb/src/include/linux/io.h:13:0, from /kisskb/src/include/linux/of_address.h:7, from /kisskb/src/drivers/ata/ahci_qoriq.c:14: /kisskb/src/arch/powerpc/include/asm/io.h:116:2: warning: 'px_cmd' may be used uninitialized in this function [-Wmaybe-uninitialized] __asm__ __volatile__("sync;"#insn" %1,%y0" \ ^ /kisskb/src/drivers/ata/ahci_qoriq.c:88:6: note: 'px_cmd' was declared here u32 px_cmd, px_is, px_val; ^ /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here int oldval, ret; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] pd->msg->buf[real_pos] = data; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here unsigned char data; ^ In file included from /kisskb/src/include/linux/rwsem.h:16:0, from /kisskb/src/include/linux/notifier.h:15, from /kisskb/src/include/linux/clk.h:14, from /kisskb/src/drivers/tty/serial/sh-sci.c:24: /kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/tty/serial/sh-sci.c:1353:16: note: 'flags' was declared here unsigned long flags; ^ In file included from /kisskb/src/include/linux/radix-tree.h:16:0, from /kisskb/src/include/linux/idr.h:15, from /kisskb/src/include/linux/kernfs.h:13, from /kisskb/src/include/linux/sysfs.h:16, from /kisskb/src/include/linux/kobject.h:20, from /kisskb/src/include/linux/device.h:16, from /kisskb/src/include/linux/platform_device.h:13, from /kisskb/src/drivers/tty/serial/xilinx_uartps.c:16: /kisskb/src/drivers/tty/serial/xilinx_uartps.c: In function 'cdns_uart_console_write': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/tty/serial/xilinx_uartps.c:1197:16: note: 'flags' was declared here unsigned long flags; ^ Completed OK # rm -rf /kisskb/build/powerpc-fixes_powerpc-allyesconfig_powerpc-gcc5 # Build took: 0:21:35.489515