# git rev-parse -q --verify 210453542946c37317478591cc9ca4a53c062aeb^{commit}
210453542946c37317478591cc9ca4a53c062aeb
already have revision, skipping fetch
# git checkout -q -f -B kisskb 210453542946c37317478591cc9ca4a53c062aeb
# git clean -qxdf
# < git log -1
# commit 210453542946c37317478591cc9ca4a53c062aeb
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Fri Jun 1 18:06:16 2018 +1000
# 
#     powerpc/powernv/ioda2: Reduce upper limit for DMA window size
#     
#     We use PHB in mode1 which uses bit 59 to select a correct DMA window.
#     However there is mode2 which uses bits 59:55 and allows up to 32 DMA
#     windows per a PE.
#     
#     Even though documentation does not clearly specify that, it seems that
#     the actual hardware does not support bits 59:55 even in mode1, in other
#     words we can create a window as big as 1<<58 but DMA simply won't work.
#     
#     This reduces the upper limit from 59 to 55 bits to let the userspace know
#     about the hardware limits.
#     
#     Fixes: 7aafac11e3 "powerpc/powernv/ioda2: Gracefully fail if too many TCE levels requested"
#     Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
#     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 210453542946c37317478591cc9ca4a53c062aeb
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  randconfig
KCONFIG_SEED=0x9C612E69
# 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-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
/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:649:6: warning: 'kernel_load_addr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1648:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/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/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/kisskb/src/fs/cifs/inode.c: In function 'cifs_set_file_size.isra.12':
/kisskb/src/fs/cifs/inode.c:2181:12: warning: 'server' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/afs/dynroot.c: In function 'afs_dynroot_lookup':
/kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/afs/dynroot.c:100:6: note: 'len' was declared here
/kisskb/src/fs/cifs/cifssmb.c: In function 'CIFSSMBGetCIFSACL':
/kisskb/src/fs/cifs/cifssmb.c:3903:26: warning: 'pSMB' may be used uninitialized in this function [-Wuninitialized]
/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/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/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/drivers/connector/connector.c:242:12: warning: 'cn_proc_show' defined but not used [-Wunused-function]
/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/net/ncsi/ncsi-manage.c: In function 'ncsi_configure_channel':
/kisskb/src/net/ncsi/ncsi-manage.c:625:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ncsi/ncsi-manage.c:587:6: note: 'vid' was declared here
/kisskb/src/lib/kobject_uevent.c: In function 'kobject_synth_uevent':
/kisskb/src/lib/kobject_uevent.c:222:39: warning: 'env' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/kobject_uevent.c:133:47: warning: 'action_args' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/kobject_uevent.c:196:14: note: 'action_args' was declared here
/kisskb/src/drivers/char/tpm/tpm-sysfs.c: In function 'pubek_show':
/kisskb/src/drivers/char/tpm/tpm-sysfs.c:37:16: warning: 'tpm_buf.data' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence':
/kisskb/src/drivers/dma-buf/reservation.c:210:7: warning: 'k' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c:160:17: note: 'k' was declared here
/kisskb/src/drivers/mcb/mcb-parse.c: In function 'chameleon_parse_cells':
/kisskb/src/drivers/mcb/mcb-parse.c:249:7: warning: 'cb' 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:3161:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/mfd/tc3589x.c: In function 'tc3589x_probe':
/kisskb/src/drivers/mfd/tc3589x.c:390:2: warning: 'version' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sctp/output.c: In function 'sctp_packet_config':
/kisskb/src/include/net/sock.h:1863:19: warning: 'sk' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sctp/output.c:94:15: note: 'sk' was declared here
/kisskb/src/drivers/mfd/arizona-core.c: In function 'arizona_dev_init':
/kisskb/src/drivers/mfd/arizona-core.c:1404:6: warning: 'n_subdevs' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/bridge/cdns-dsi.c:1340:12: warning: 'cdns_dsi_resume' defined but not used [-Wunused-function]
/kisskb/src/drivers/gpu/drm/bridge/cdns-dsi.c:1353:12: warning: 'cdns_dsi_suspend' defined but not used [-Wunused-function]
/kisskb/src/drivers/input/rmi4/rmi_f11.c: In function 'rmi_f11_attention':
/kisskb/src/drivers/input/rmi4/rmi_f11.c:631:3: warning: 'abs_fingers' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/input/rmi4/rmi_f11.c:580:6: note: 'abs_fingers' was declared here
/kisskb/src/drivers/video/backlight/adp8870_bl.c: In function 'adp8870_bl_ambient_light_zone_show':
/kisskb/src/drivers/video/backlight/adp8870_bl.c:785:32: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/backlight/adp8870_bl.c: In function 'adp8870_show':
/kisskb/src/drivers/video/backlight/adp8870_bl.c:564:16: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/uio/uio_fsl_elbc_gpcm.c: In function 'uio_fsl_elbc_gpcm_probe':
/kisskb/src/drivers/uio/uio_fsl_elbc_gpcm.c:394:14: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/staging/comedi/drivers/dt282x.c: In function 'dt282x_ns_to_timer':
/kisskb/src/drivers/staging/comedi/drivers/dt282x.c:389:5: warning: 'divider' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/staging/comedi/drivers/dt282x.c:394:16: warning: 'base' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_zone_show':
/kisskb/src/drivers/video/backlight/adp8860_bl.c:601:32: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show':
/kisskb/src/drivers/video/backlight/adp8860_bl.c:579:10: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/backlight/adp8860_bl.c:579:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_show':
/kisskb/src/drivers/video/backlight/adp8860_bl.c:443:16: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data':
/kisskb/src/drivers/mtd/ubi/eba.c:1001:7: warning: 'opnum' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/bios/power_budget.c: In function 'nvbios_power_budget_header':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/bios/power_budget.c:94:15: warning: 'len' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/bios/power_budget.c:84:5: warning: 'cnt' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/bios/power_budget.c:93:15: warning: 'hdr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/bios/power_budget.c:92:14: warning: 'ver' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/staging/comedi/drivers/pcl818.c: In function 'pcl818_ai_cmd':
/kisskb/src/drivers/staging/comedi/drivers/pcl818.c:337:6: warning: 'last_chan' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/staging/comedi/drivers/pcl818.c:347:15: note: 'last_chan' was declared here
/kisskb/src/drivers/gpu/drm/scheduler/gpu_scheduler.c: In function 'drm_sched_job_recovery':
/kisskb/src/drivers/gpu/drm/scheduler/gpu_scheduler.c:575:20: warning: 'guilty_context' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/soc15.c: In function 'soc15_set_ip_blocks':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/soc15.c:532:3: warning: #warning "Enable CONFIG_DRM_AMD_DC for display support on SOC15." [-Wcpp]
/kisskb/src/drivers/gpu/drm/amd/amdgpu/soc15.c:551:3: warning: #warning "Enable CONFIG_DRM_AMD_DC for display support on SOC15." [-Wcpp]
/kisskb/src/drivers/media/dvb-frontends/mn88472.c: In function 'mn88472_set_frontend':
/kisskb/src/drivers/media/dvb-frontends/mn88472.c:339:27: warning: 'bandwidth_vals_ptr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/media/dvb-frontends/mn88472.c:320:20: warning: 'bandwidth_val' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/typec/tcpm.c: In function 'tcpm_state_machine_work':
/kisskb/src/drivers/usb/typec/tcpm.c:2296:19: warning: 'rdo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/typec/tcpm.c:2284:6: note: 'rdo' was declared here
/kisskb/src/drivers/usb/serial/cp210x.c: In function 'cp210x_tx_empty':
/kisskb/src/drivers/usb/serial/cp210x.c:869:2: warning: 'count' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_get_register':
/kisskb/src/drivers/usb/serial/f81534.c:282:5: warning: 'status' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_set_register':
/kisskb/src/drivers/usb/serial/f81534.c:216:6: warning: 'status' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c: In function 'g94_i2c_aux_xfer':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c:160:31: warning: 'stat' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c: In function 'gm200_i2c_aux_xfer':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c:160:31: warning: 'stat' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_sideband_msg_build':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:364:23: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/media/dvb-frontends/mn88473.c: In function 'mn88473_set_frontend':
/kisskb/src/drivers/media/dvb-frontends/mn88473.c:156:21: warning: 'conf_val_ptr' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit':
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:90:20: warning: 'inst' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:76:3: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/dispnv50/lut.c: In function 'nv50_lut_load':
/kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'b' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/dispnv50/lut.c:39:18: note: 'b' was declared here
/kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'g' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/dispnv50/lut.c:39:15: note: 'g' was declared here
/kisskb/src/arch/powerpc/include/asm/io.h:176:1: warning: 'r' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/nouveau/dispnv50/lut.c:39:12: note: 'r' was declared here
Completed OK
# rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc
# Build took: 0:01:23.481644