# git rev-parse -q --verify 38ca47030383b347802ebf569e42edff6164d886^{commit} 38ca47030383b347802ebf569e42edff6164d886 already have revision, skipping fetch # git checkout -q -f -B kisskb 38ca47030383b347802ebf569e42edff6164d886 # git clean -qxdf # git log -1 commit 38ca47030383b347802ebf569e42edff6164d886 Author: Ian Munsie Date: Thu Jul 23 16:43:56 2015 +1000 cxl: Add alternate MMIO error handling userspace programs using cxl currently have to use two strategies for dealing with MMIO errors simultaneously. They have to check every read for a return of all Fs in case the adapter has gone away and the kernel has not yet noticed, and they have to deal with SIGBUS in case the kernel has already noticed, invalidated the mapping and marked the context as failed. In order to simplify things, this patch adds an alternative approach where the kernel will return a page filled with Fs instead of delivering a SIGBUS. This allows userspace to only need to deal with one of these two error paths, and is intended for use in libraries that use cxl transparently and may not be able to safely install a signal handler. This approach will only work if certain constraints are met. Namely, if the application is both reading and writing to an address in the problem state area it cannot assume that a non-FF read is OK, as it may just be reading out a value it has previously written. Further - since only one page is used per context a write to a given offset would be visible when reading the same offset from a different page in the mapping (this only applies within a single context, not between contexts). An application could deal with this by e.g. making sure it also reads from a read-only offset after any reads to a read/write offset. Due to these constraints, this functionality must be explicitly requested by userspace when starting the context by passing in the CXL_START_WORK_ERR_FF flag. Signed-off-by: Ian Munsie Acked-by: Michael Neuling Signed-off-by: Michael Ellerman # < /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 38ca47030383b347802ebf569e42edff6164d886 # < make -j 1 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mpc885_ads_defconfig_powerpc CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc885_ads_defconfig # make -j 1 ARCH=powerpc O=/home/kisskb/slave/build/mpe_mpc885_ads_defconfig_powerpc CROSS_COMPILE=/opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- make[1]: Entering directory '/home/kisskb/slave/build/mpe_mpc885_ads_defconfig_powerpc' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release UPD include/config/kernel.release Using /home/kisskb/slave/src as source for kernel GEN ./Makefile WRAP arch/powerpc/include/generated/asm/clkdev.h WRAP arch/powerpc/include/generated/asm/div64.h WRAP arch/powerpc/include/generated/asm/irq_regs.h WRAP arch/powerpc/include/generated/asm/irq_work.h WRAP arch/powerpc/include/generated/asm/local64.h WRAP arch/powerpc/include/generated/asm/mcs_spinlock.h WRAP arch/powerpc/include/generated/asm/preempt.h WRAP arch/powerpc/include/generated/asm/rwsem.h WRAP arch/powerpc/include/generated/asm/vtime.h CHK include/generated/uapi/linux/version.h UPD include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h CC kernel/bounds.s CHK include/generated/bounds.h UPD include/generated/bounds.h CHK include/generated/timeconst.h UPD include/generated/timeconst.h CC arch/powerpc/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh HOSTCC scripts/dtc/dtc.o HOSTCC scripts/dtc/flattree.o HOSTCC scripts/dtc/fstree.o HOSTCC scripts/dtc/data.o HOSTCC scripts/dtc/livetree.o HOSTCC scripts/dtc/treesource.o HOSTCC scripts/dtc/srcpos.o HOSTCC scripts/dtc/checks.o HOSTCC scripts/dtc/util.o SHIPPED scripts/dtc/dtc-lexer.lex.c SHIPPED scripts/dtc/dtc-parser.tab.h HOSTCC scripts/dtc/dtc-lexer.lex.o SHIPPED scripts/dtc/dtc-parser.tab.c HOSTCC scripts/dtc/dtc-parser.tab.o HOSTLD scripts/dtc/dtc CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost HOSTCC scripts/kallsyms CC init/main.o CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o CC init/do_mounts.o LD init/mounts.o CC init/noinitramfs.o CC init/init_task.o LD init/built-in.o LD usr/built-in.o CC arch/powerpc/kernel/cputable.o CC arch/powerpc/kernel/ptrace.o CC arch/powerpc/kernel/syscalls.o CC arch/powerpc/kernel/irq.o CC arch/powerpc/kernel/align.o CC arch/powerpc/kernel/signal_32.o CC arch/powerpc/kernel/pmc.o CC arch/powerpc/kernel/vdso.o CC arch/powerpc/kernel/process.o CPP arch/powerpc/kernel/systbl_chk.i CALL /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh AS arch/powerpc/kernel/systbl.o CC arch/powerpc/kernel/idle.o CC arch/powerpc/kernel/signal.o CC arch/powerpc/kernel/sysfs.o CC arch/powerpc/kernel/cacheinfo.o CC arch/powerpc/kernel/time.o CC arch/powerpc/kernel/prom.o CC arch/powerpc/kernel/traps.o CC arch/powerpc/kernel/setup-common.o CC arch/powerpc/kernel/udbg.o AS arch/powerpc/kernel/misc.o CC arch/powerpc/kernel/io.o CC arch/powerpc/kernel/dma.o AS arch/powerpc/kernel/misc_32.o CC arch/powerpc/kernel/of_platform.o CC arch/powerpc/kernel/prom_parse.o LDS arch/powerpc/kernel/vdso32/vdso32.lds VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o VDSO32A arch/powerpc/kernel/vdso32/datapage.o VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o VDSO32A arch/powerpc/kernel/vdso32/note.o VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so AS arch/powerpc/kernel/vdso32/vdso32_wrapper.o LD arch/powerpc/kernel/vdso32/built-in.o CC arch/powerpc/kernel/proc_powerpc.o AS arch/powerpc/kernel/entry_32.o CC arch/powerpc/kernel/setup_32.o CC arch/powerpc/kernel/iomap.o LD arch/powerpc/kernel/built-in.o AS arch/powerpc/kernel/head_8xx.o LDS arch/powerpc/kernel/vmlinux.lds CC arch/powerpc/mm/fault.o CC arch/powerpc/mm/mem.o CC arch/powerpc/mm/pgtable.o CC arch/powerpc/mm/mmap.o CC arch/powerpc/mm/init_32.o CC arch/powerpc/mm/pgtable_32.o CC arch/powerpc/mm/mmu_context_nohash.o CC arch/powerpc/mm/tlb_nohash.o AS arch/powerpc/mm/tlb_nohash_low.o CC arch/powerpc/mm/hugetlbpage.o CC arch/powerpc/mm/dma-noncoherent.o LD arch/powerpc/mm/built-in.o AS arch/powerpc/lib/string.o CC arch/powerpc/lib/alloc.o AS arch/powerpc/lib/crtsavres.o CC arch/powerpc/lib/ppc_ksyms.o CC arch/powerpc/lib/code-patching.o CC arch/powerpc/lib/feature-fixups.o AS arch/powerpc/lib/div64.o AS arch/powerpc/lib/copy_32.o AS arch/powerpc/lib/checksum_32.o CC arch/powerpc/lib/rheap.o LD arch/powerpc/lib/built-in.o CC arch/powerpc/sysdev/fsl_soc.o CC arch/powerpc/sysdev/fsl_mpic_err.o CC arch/powerpc/sysdev/cpm_common.o CC arch/powerpc/sysdev/mpc8xx_pic.o CC arch/powerpc/sysdev/cpm1.o LD arch/powerpc/sysdev/built-in.o CC arch/powerpc/platforms/8xx/m8xx_setup.o CC arch/powerpc/platforms/8xx/mpc885ads_setup.o LD arch/powerpc/platforms/8xx/built-in.o LD arch/powerpc/platforms/built-in.o LD arch/powerpc/math-emu/built-in.o LD arch/powerpc/crypto/built-in.o LD arch/powerpc/net/built-in.o CC kernel/fork.o CC kernel/exec_domain.o CC kernel/panic.o CC kernel/cpu.o CC kernel/exit.o CC kernel/softirq.o CC kernel/resource.o CC kernel/sysctl.o CC kernel/sysctl_binary.o CC kernel/capability.o CC kernel/ptrace.o CC kernel/user.o CC kernel/signal.o CC kernel/sys.o CC kernel/kmod.o CC kernel/workqueue.o CC kernel/pid.o CC kernel/task_work.o CC kernel/extable.o CC kernel/params.o CC kernel/kthread.o CC kernel/sys_ni.o CC kernel/nsproxy.o CC kernel/notifier.o CC kernel/ksysfs.o CC kernel/cred.o CC kernel/reboot.o CC kernel/async.o CC kernel/range.o CC kernel/smpboot.o CC kernel/groups.o CC kernel/bpf/core.o LD kernel/bpf/built-in.o CC kernel/irq/irqdesc.o CC kernel/irq/handle.o CC kernel/irq/manage.o CC kernel/irq/spurious.o CC kernel/irq/resend.o CC kernel/irq/chip.o CC kernel/irq/dummychip.o CC kernel/irq/devres.o CC kernel/irq/irqdomain.o CC kernel/irq/proc.o LD kernel/irq/built-in.o LD kernel/livepatch/built-in.o CC kernel/locking/mutex.o CC kernel/locking/semaphore.o CC kernel/locking/rwsem.o CC kernel/locking/rwsem-xadd.o LD kernel/locking/built-in.o CC kernel/power/qos.o CC kernel/power/poweroff.o LD kernel/power/built-in.o CC kernel/printk/printk.o LD kernel/printk/built-in.o CC kernel/rcu/update.o CC kernel/rcu/srcu.o CC kernel/rcu/tiny.o LD kernel/rcu/built-in.o CC kernel/sched/core.o CC kernel/sched/loadavg.o CC kernel/sched/clock.o CC kernel/sched/cputime.o CC kernel/sched/idle_task.o CC kernel/sched/fair.o CC kernel/sched/rt.o CC kernel/sched/deadline.o CC kernel/sched/stop_task.o CC kernel/sched/wait.o CC kernel/sched/completion.o CC kernel/sched/idle.o CC kernel/sched/debug.o LD kernel/sched/built-in.o CC kernel/time/time.o CC kernel/time/timer.o CC kernel/time/hrtimer.o CC kernel/time/itimer.o CC kernel/time/posix-timers.o CC kernel/time/posix-cpu-timers.o CC kernel/time/timekeeping.o CC kernel/time/ntp.o CC kernel/time/clocksource.o CC kernel/time/jiffies.o CC kernel/time/timer_list.o CC kernel/time/timeconv.o CC kernel/time/timecounter.o CC kernel/time/posix-clock.o CC kernel/time/alarmtimer.o CC kernel/time/clockevents.o CC kernel/time/tick-common.o CC kernel/time/tick-oneshot.o CC kernel/time/tick-sched.o LD kernel/time/built-in.o CC kernel/up.o CC kernel/kallsyms.o CC kernel/hung_task.o CC kernel/utsname_sysctl.o CC kernel/elfcore.o CC kernel/irq_work.o LD kernel/built-in.o CC mm/filemap.o CC mm/mempool.o CC mm/oom_kill.o CC mm/maccess.o CC mm/page_alloc.o CC mm/page-writeback.o CC mm/readahead.o CC mm/swap.o CC mm/truncate.o CC mm/vmscan.o CC mm/shmem.o CC mm/util.o CC mm/mmzone.o CC mm/vmstat.o CC mm/backing-dev.o CC mm/mm_init.o CC mm/mmu_context.o CC mm/percpu.o CC mm/slab_common.o CC mm/compaction.o CC mm/vmacache.o CC mm/interval_tree.o CC mm/list_lru.o CC mm/workingset.o CC mm/debug.o CC mm/gup.o CC mm/highmem.o CC mm/memory.o CC mm/mincore.o CC mm/mlock.o CC mm/mmap.o CC mm/mprotect.o CC mm/mremap.o CC mm/msync.o CC mm/rmap.o CC mm/vmalloc.o CC mm/pagewalk.o CC mm/pgtable-generic.o CC mm/process_vm_access.o CC mm/init-mm.o CC mm/nobootmem.o CC mm/fadvise.o CC mm/madvise.o CC mm/memblock.o CC mm/dmapool.o CC mm/slub.o CC mm/migrate.o LD mm/built-in.o CC fs/open.o CC fs/read_write.o CC fs/file_table.o CC fs/super.o CC fs/char_dev.o CC fs/stat.o CC fs/exec.o CC fs/pipe.o CC fs/namei.o CC fs/fcntl.o CC fs/ioctl.o CC fs/readdir.o CC fs/select.o CC fs/dcache.o CC fs/inode.o CC fs/attr.o CC fs/bad_inode.o CC fs/file.o CC fs/filesystems.o CC fs/namespace.o CC fs/seq_file.o CC fs/xattr.o CC fs/libfs.o CC fs/fs-writeback.o CC fs/pnode.o CC fs/splice.o CC fs/sync.o CC fs/utimes.o CC fs/stack.o CC fs/fs_struct.o CC fs/statfs.o CC fs/fs_pin.o CC fs/nsfs.o CC fs/buffer.o CC fs/block_dev.o CC fs/direct-io.o CC fs/mpage.o CC fs/proc_namespace.o CC fs/cramfs/inode.o CC fs/cramfs/uncompress.o LD fs/cramfs/cramfs.o LD fs/cramfs/built-in.o CC fs/devpts/inode.o LD fs/devpts/devpts.o LD fs/devpts/built-in.o LD fs/exofs/built-in.o CC fs/kernfs/mount.o CC fs/kernfs/inode.o CC fs/kernfs/dir.o CC fs/kernfs/file.o CC fs/kernfs/symlink.o LD fs/kernfs/built-in.o CC fs/lockd/clntlock.o CC fs/lockd/clntproc.o CC fs/lockd/clntxdr.o CC fs/lockd/host.o CC fs/lockd/svc.o CC fs/lockd/svclock.o CC fs/lockd/svcshare.o CC fs/lockd/svcproc.o CC fs/lockd/svcsubs.o CC fs/lockd/mon.o CC fs/lockd/xdr.o CC fs/lockd/clnt4xdr.o CC fs/lockd/xdr4.o CC fs/lockd/svc4proc.o CC fs/lockd/procfs.o LD fs/lockd/lockd.o LD fs/lockd/built-in.o CC fs/nfs/client.o CC fs/nfs/dir.o CC fs/nfs/file.o CC fs/nfs/getroot.o CC fs/nfs/inode.o CC fs/nfs/super.o CC fs/nfs/direct.o CC fs/nfs/pagelist.o CC fs/nfs/read.o CC fs/nfs/symlink.o CC fs/nfs/unlink.o CC fs/nfs/write.o CC fs/nfs/namespace.o CC fs/nfs/mount_clnt.o CC fs/nfs/nfstrace.o CC fs/nfs/nfsroot.o CC fs/nfs/sysctl.o LD fs/nfs/nfs.o CC fs/nfs/nfs2super.o CC fs/nfs/proc.o CC fs/nfs/nfs2xdr.o LD fs/nfs/nfsv2.o CC fs/nfs/nfs3super.o CC fs/nfs/nfs3client.o CC fs/nfs/nfs3proc.o CC fs/nfs/nfs3xdr.o LD fs/nfs/nfsv3.o LD fs/nfs/built-in.o CC fs/nfs_common/grace.o LD fs/nfs_common/built-in.o CC fs/notify/fsnotify.o CC fs/notify/notification.o CC fs/notify/group.o CC fs/notify/inode_mark.o CC fs/notify/mark.o CC fs/notify/vfsmount_mark.o CC fs/notify/fdinfo.o LD fs/notify/dnotify/built-in.o LD fs/notify/fanotify/built-in.o CC fs/notify/inotify/inotify_fsnotify.o CC fs/notify/inotify/inotify_user.o LD fs/notify/inotify/built-in.o LD fs/notify/built-in.o CC fs/proc/task_mmu.o CC fs/proc/inode.o CC fs/proc/root.o CC fs/proc/base.o CC fs/proc/generic.o CC fs/proc/array.o CC fs/proc/fd.o CC fs/proc/proc_tty.o CC fs/proc/cmdline.o CC fs/proc/consoles.o CC fs/proc/cpuinfo.o CC fs/proc/devices.o CC fs/proc/interrupts.o CC fs/proc/loadavg.o CC fs/proc/meminfo.o CC fs/proc/stat.o CC fs/proc/uptime.o CC fs/proc/version.o CC fs/proc/softirqs.o CC fs/proc/namespaces.o CC fs/proc/self.o CC fs/proc/thread_self.o CC fs/proc/proc_sysctl.o CC fs/proc/proc_net.o CC fs/proc/kmsg.o CC fs/proc/page.o LD fs/proc/proc.o LD fs/proc/built-in.o LD fs/quota/built-in.o CC fs/ramfs/inode.o CC fs/ramfs/file-mmu.o LD fs/ramfs/ramfs.o LD fs/ramfs/built-in.o CC fs/sysfs/file.o CC fs/sysfs/dir.o CC fs/sysfs/symlink.o CC fs/sysfs/mount.o CC fs/sysfs/group.o LD fs/sysfs/built-in.o CC fs/eventpoll.o CC fs/anon_inodes.o CC fs/signalfd.o CC fs/timerfd.o CC fs/eventfd.o CC fs/aio.o CC fs/locks.o CC fs/binfmt_script.o CC fs/binfmt_elf.o CC fs/coredump.o CC fs/drop_caches.o LD fs/built-in.o CC ipc/util.o CC ipc/msgutil.o CC ipc/msg.o CC ipc/sem.o CC ipc/shm.o CC ipc/syscall.o CC ipc/ipc_sysctl.o LD ipc/built-in.o CC security/commoncap.o CC security/min_addr.o LD security/built-in.o CC crypto/api.o CC crypto/cipher.o CC crypto/compress.o CC crypto/memneq.o LD crypto/crypto.o CC crypto/crypto_wq.o CC crypto/algapi.o CC crypto/scatterwalk.o CC crypto/proc.o LD crypto/crypto_algapi.o CC crypto/aead.o CC crypto/ablkcipher.o CC crypto/blkcipher.o LD crypto/crypto_blkcipher.o CC crypto/chainiv.o CC crypto/eseqiv.o CC crypto/echainiv.o CC crypto/ahash.o CC crypto/shash.o LD crypto/crypto_hash.o CC crypto/pcompress.o CC crypto/akcipher.o CC crypto/algboss.o CC crypto/testmgr.o LD crypto/cryptomgr.o CC crypto/hmac.o CC crypto/crypto_null.o CC crypto/sha256_generic.o CC crypto/aes_generic.o CC crypto/rng.o CC crypto/drbg.o CC crypto/jitterentropy.o CC crypto/jitterentropy-kcapi.o LD crypto/jitterentropy_rng.o LD crypto/built-in.o CC block/bio.o CC block/elevator.o CC block/blk-core.o CC block/blk-tag.o CC block/blk-sysfs.o CC block/blk-flush.o CC block/blk-settings.o CC block/blk-ioc.o CC block/blk-map.o CC block/blk-exec.o CC block/blk-merge.o CC block/blk-softirq.o CC block/blk-timeout.o CC block/blk-iopoll.o CC block/blk-lib.o CC block/blk-mq.o CC block/blk-mq-tag.o CC block/blk-mq-sysfs.o CC block/blk-mq-cpu.o CC block/blk-mq-cpumap.o CC block/ioctl.o CC block/genhd.o CC block/scsi_ioctl.o CC block/partition-generic.o CC block/ioprio.o CC block/partitions/check.o CC block/partitions/msdos.o CC block/partitions/efi.o LD block/partitions/built-in.o CC block/bounce.o CC block/noop-iosched.o CC block/deadline-iosched.o LD block/built-in.o LD drivers/amba/built-in.o LD drivers/auxdisplay/built-in.o CC drivers/base/component.o CC drivers/base/core.o CC drivers/base/bus.o CC drivers/base/dd.o CC drivers/base/syscore.o CC drivers/base/driver.o CC drivers/base/class.o CC drivers/base/platform.o CC drivers/base/cpu.o CC drivers/base/firmware.o CC drivers/base/init.o CC drivers/base/map.o CC drivers/base/devres.o CC drivers/base/attribute_container.o CC drivers/base/transport_class.o CC drivers/base/topology.o CC drivers/base/container.o CC drivers/base/property.o CC drivers/base/cacheinfo.o LD drivers/base/power/built-in.o CC drivers/base/dma-mapping.o LD drivers/base/built-in.o LD drivers/block/built-in.o LD drivers/bus/built-in.o LD drivers/cdrom/built-in.o CC drivers/char/mem.o CC drivers/char/random.o CC drivers/char/misc.o CC drivers/char/genrtc.o LD drivers/char/agp/built-in.o CC drivers/char/hw_random/core.o LD drivers/char/hw_random/rng-core.o LD drivers/char/hw_random/built-in.o LD drivers/char/built-in.o LD drivers/clk/built-in.o LD drivers/clocksource/built-in.o LD drivers/crypto/built-in.o LD drivers/firewire/built-in.o LD drivers/firmware/broadcom/built-in.o LD drivers/firmware/built-in.o LD drivers/gpio/built-in.o LD drivers/gpu/drm/bridge/built-in.o LD drivers/gpu/drm/i2c/built-in.o LD drivers/gpu/drm/panel/built-in.o LD drivers/gpu/drm/tilcdc/built-in.o LD drivers/gpu/drm/built-in.o LD drivers/gpu/vga/built-in.o LD drivers/gpu/built-in.o LD drivers/hsi/clients/built-in.o LD drivers/hsi/controllers/built-in.o LD drivers/hsi/built-in.o LD drivers/i2c/algos/built-in.o LD drivers/i2c/busses/built-in.o LD drivers/i2c/muxes/built-in.o LD drivers/i2c/built-in.o LD drivers/idle/built-in.o LD drivers/iommu/built-in.o CC drivers/irqchip/irqchip.o LD drivers/irqchip/built-in.o LD drivers/leds/built-in.o LD drivers/lguest/built-in.o LD drivers/macintosh/built-in.o LD drivers/media/common/b2c2/built-in.o LD drivers/media/common/saa7146/built-in.o LD drivers/media/common/siano/built-in.o LD drivers/media/common/built-in.o LD drivers/media/firewire/built-in.o LD drivers/media/i2c/soc_camera/built-in.o LD drivers/media/i2c/built-in.o LD drivers/media/mmc/siano/built-in.o LD drivers/media/mmc/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/pci/mantis/built-in.o LD drivers/media/pci/ngene/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/pci/pt1/built-in.o LD drivers/media/pci/pt3/built-in.o LD drivers/media/pci/saa7146/built-in.o LD drivers/media/pci/smipcie/built-in.o LD drivers/media/pci/ttpci/built-in.o LD drivers/media/pci/built-in.o LD drivers/media/platform/omap/built-in.o LD drivers/media/platform/built-in.o LD drivers/media/rc/keymaps/built-in.o LD drivers/media/rc/built-in.o LD drivers/media/tuners/built-in.o LD drivers/media/usb/b2c2/built-in.o LD drivers/media/usb/dvb-usb/built-in.o LD drivers/media/usb/dvb-usb-v2/built-in.o LD drivers/media/usb/s2255/built-in.o LD drivers/media/usb/siano/built-in.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o LD drivers/media/usb/ttusb-dec/built-in.o LD drivers/media/usb/zr364xx/built-in.o LD drivers/media/usb/built-in.o LD drivers/media/built-in.o LD drivers/mfd/built-in.o LD drivers/misc/cb710/built-in.o LD drivers/misc/eeprom/built-in.o LD drivers/misc/lis3lv02d/built-in.o LD drivers/misc/mic/bus/built-in.o LD drivers/misc/mic/built-in.o LD drivers/misc/ti-st/built-in.o LD drivers/misc/built-in.o LD drivers/mmc/built-in.o CC drivers/mtd/mtdcore.o CC drivers/mtd/mtdsuper.o CC drivers/mtd/mtdconcat.o CC drivers/mtd/mtdpart.o CC drivers/mtd/mtdchar.o LD drivers/mtd/mtd.o CC drivers/mtd/ofpart.o CC drivers/mtd/mtd_blkdevs.o CC drivers/mtd/mtdblock.o CC drivers/mtd/chips/chipreg.o CC drivers/mtd/chips/cfi_util.o CC drivers/mtd/chips/cfi_cmdset_0002.o CC drivers/mtd/chips/gen_probe.o CC drivers/mtd/chips/jedec_probe.o LD drivers/mtd/chips/built-in.o LD drivers/mtd/devices/built-in.o LD drivers/mtd/lpddr/built-in.o CC drivers/mtd/maps/physmap_of.o LD drivers/mtd/maps/built-in.o LD drivers/mtd/nand/built-in.o LD drivers/mtd/onenand/built-in.o LD drivers/mtd/tests/built-in.o LD drivers/mtd/built-in.o CC drivers/net/mii.o CC drivers/net/Space.o CC drivers/net/loopback.o LD drivers/net/ethernet/8390/built-in.o LD drivers/net/ethernet/arc/built-in.o LD drivers/net/ethernet/broadcom/built-in.o LD drivers/net/ethernet/cadence/built-in.o LD drivers/net/ethernet/ezchip/built-in.o CC drivers/net/ethernet/freescale/fs_enet/fs_enet-main.o CC drivers/net/ethernet/freescale/fs_enet/mac-fec.o LD drivers/net/ethernet/freescale/fs_enet/fs_enet.o CC drivers/net/ethernet/freescale/fs_enet/mii-fec.o LD drivers/net/ethernet/freescale/fs_enet/built-in.o LD drivers/net/ethernet/freescale/built-in.o LD drivers/net/ethernet/i825xx/built-in.o LD drivers/net/ethernet/intel/built-in.o LD drivers/net/ethernet/marvell/built-in.o LD drivers/net/ethernet/micrel/built-in.o LD drivers/net/ethernet/natsemi/built-in.o LD drivers/net/ethernet/qualcomm/built-in.o LD drivers/net/ethernet/rocker/built-in.o LD drivers/net/ethernet/samsung/built-in.o LD drivers/net/ethernet/seeq/built-in.o LD drivers/net/ethernet/stmicro/built-in.o LD drivers/net/ethernet/via/built-in.o LD drivers/net/ethernet/wiznet/built-in.o LD drivers/net/ethernet/xilinx/built-in.o LD drivers/net/ethernet/built-in.o CC drivers/net/phy/phy.o CC drivers/net/phy/phy_device.o CC drivers/net/phy/mdio_bus.o LD drivers/net/phy/libphy.o CC drivers/net/phy/davicom.o LD drivers/net/phy/built-in.o LD drivers/net/wireless/built-in.o LD drivers/net/built-in.o LD drivers/nfc/built-in.o CC drivers/of/base.o CC drivers/of/device.o CC drivers/of/platform.o CC drivers/of/dynamic.o CC drivers/of/fdt.o CC drivers/of/fdt_address.o CC drivers/of/address.o CC drivers/of/irq.o CC drivers/of/of_net.o CC drivers/of/of_mdio.o CC drivers/of/of_mtd.o CC drivers/of/of_reserved_mem.o LD drivers/of/built-in.o LD drivers/pinctrl/freescale/built-in.o LD drivers/pinctrl/nomadik/built-in.o LD drivers/pinctrl/built-in.o LD drivers/platform/built-in.o LD drivers/pwm/built-in.o LD drivers/soc/built-in.o CC drivers/tty/tty_io.o CC drivers/tty/n_tty.o CC drivers/tty/tty_ioctl.o CC drivers/tty/tty_ldisc.o CC drivers/tty/tty_buffer.o CC drivers/tty/tty_port.o CC drivers/tty/tty_mutex.o CC drivers/tty/tty_ldsem.o CC drivers/tty/pty.o CC drivers/tty/sysrq.o LD drivers/tty/ipwireless/built-in.o CC drivers/tty/serial/serial_core.o CC drivers/tty/serial/cpm_uart/cpm_uart_core.o CC drivers/tty/serial/cpm_uart/cpm_uart_cpm1.o LD drivers/tty/serial/cpm_uart/cpm_uart.o LD drivers/tty/serial/cpm_uart/built-in.o LD drivers/tty/serial/built-in.o LD drivers/tty/vt/built-in.o LD drivers/tty/built-in.o LD drivers/video/backlight/built-in.o CC drivers/video/fbdev/core/fb_notify.o LD drivers/video/fbdev/core/built-in.o LD drivers/video/fbdev/omap2/displays-new/built-in.o LD drivers/video/fbdev/omap2/dss/built-in.o LD drivers/video/fbdev/omap2/built-in.o LD drivers/video/fbdev/built-in.o LD drivers/video/built-in.o LD drivers/built-in.o LD sound/built-in.o LD firmware/built-in.o CC net/socket.o LD net/802/built-in.o CC net/core/sock.o CC net/core/request_sock.o CC net/core/skbuff.o CC net/core/datagram.o CC net/core/stream.o CC net/core/scm.o CC net/core/gen_stats.o CC net/core/gen_estimator.o CC net/core/net_namespace.o CC net/core/secure_seq.o CC net/core/flow_dissector.o CC net/core/sysctl_net_core.o CC net/core/dev.o CC net/core/ethtool.o CC net/core/dev_addr_lists.o CC net/core/dst.o CC net/core/netevent.o CC net/core/neighbour.o CC net/core/rtnetlink.o CC net/core/utils.o CC net/core/link_watch.o CC net/core/filter.o CC net/core/sock_diag.o CC net/core/dev_ioctl.o CC net/core/tso.o CC net/core/net-sysfs.o CC net/core/net-procfs.o LD net/core/built-in.o CC net/ethernet/eth.o LD net/ethernet/built-in.o CC net/ipv4/route.o CC net/ipv4/inetpeer.o CC net/ipv4/protocol.o CC net/ipv4/ip_input.o CC net/ipv4/ip_fragment.o CC net/ipv4/ip_forward.o CC net/ipv4/ip_options.o CC net/ipv4/ip_output.o CC net/ipv4/ip_sockglue.o CC net/ipv4/inet_hashtables.o /home/kisskb/slave/src/net/ipv4/inet_hashtables.c: In function 'inet_ehash_locks_alloc': /home/kisskb/slave/src/net/ipv4/inet_hashtables.c:631:13: warning: division by zero [-Wdiv-by-zero] CC net/ipv4/inet_timewait_sock.o CC net/ipv4/inet_connection_sock.o CC net/ipv4/tcp.o CC net/ipv4/tcp_input.o CC net/ipv4/tcp_output.o CC net/ipv4/tcp_timer.o CC net/ipv4/tcp_ipv4.o CC net/ipv4/tcp_minisocks.o CC net/ipv4/tcp_cong.o CC net/ipv4/tcp_metrics.o CC net/ipv4/tcp_fastopen.o CC net/ipv4/tcp_offload.o CC net/ipv4/datagram.o CC net/ipv4/raw.o CC net/ipv4/udp.o CC net/ipv4/udplite.o CC net/ipv4/udp_offload.o CC net/ipv4/arp.o CC net/ipv4/icmp.o CC net/ipv4/devinet.o CC net/ipv4/af_inet.o CC net/ipv4/igmp.o CC net/ipv4/fib_frontend.o CC net/ipv4/fib_semantics.o CC net/ipv4/fib_trie.o CC net/ipv4/inet_fragment.o CC net/ipv4/ping.o CC net/ipv4/ip_tunnel_core.o CC net/ipv4/gre_offload.o CC net/ipv4/sysctl_net_ipv4.o CC net/ipv4/proc.o CC net/ipv4/syncookies.o CC net/ipv4/ipconfig.o CC net/ipv4/inet_diag.o CC net/ipv4/tcp_diag.o CC net/ipv4/tcp_cubic.o LD net/ipv4/built-in.o CC net/ipv6/addrconf_core.o CC net/ipv6/exthdrs_core.o CC net/ipv6/ip6_checksum.o CC net/ipv6/ip6_icmp.o CC net/ipv6/output_core.o CC net/ipv6/protocol.o CC net/ipv6/ip6_offload.o CC net/ipv6/tcpv6_offload.o CC net/ipv6/udp_offload.o CC net/ipv6/exthdrs_offload.o LD net/ipv6/built-in.o CC net/netlink/af_netlink.o CC net/netlink/genetlink.o LD net/netlink/built-in.o CC net/packet/af_packet.o LD net/packet/built-in.o CC net/sched/sch_generic.o CC net/sched/sch_mq.o LD net/sched/built-in.o CC net/sunrpc/clnt.o CC net/sunrpc/xprt.o CC net/sunrpc/socklib.o CC net/sunrpc/xprtsock.o CC net/sunrpc/sched.o CC net/sunrpc/auth.o CC net/sunrpc/auth_null.o CC net/sunrpc/auth_unix.o CC net/sunrpc/auth_generic.o CC net/sunrpc/svc.o CC net/sunrpc/svcsock.o CC net/sunrpc/svcauth.o CC net/sunrpc/svcauth_unix.o CC net/sunrpc/addr.o CC net/sunrpc/rpcb_clnt.o CC net/sunrpc/timer.o CC net/sunrpc/xdr.o CC net/sunrpc/sunrpc_syms.o CC net/sunrpc/cache.o CC net/sunrpc/rpc_pipe.o CC net/sunrpc/svc_xprt.o CC net/sunrpc/stats.o CC net/sunrpc/sysctl.o LD net/sunrpc/sunrpc.o LD net/sunrpc/built-in.o CC net/unix/af_unix.o CC net/unix/garbage.o CC net/unix/sysctl_net_unix.o LD net/unix/unix.o LD net/unix/built-in.o LD net/wireless/built-in.o CC net/sysctl_net.o LD net/built-in.o CC lib/lockref.o CC lib/bcd.o CC lib/div64.o CC lib/sort.o CC lib/parser.o CC lib/halfmd4.o CC lib/debug_locks.o CC lib/random32.o CC lib/bust_spinlocks.o CC lib/kasprintf.o CC lib/bitmap.o CC lib/scatterlist.o CC lib/gcd.o CC lib/lcm.o CC lib/list_sort.o CC lib/uuid.o CC lib/flex_array.o CC lib/iov_iter.o CC lib/clz_ctz.o CC lib/bsearch.o CC lib/find_bit.o CC lib/llist.o CC lib/memweight.o CC lib/kfifo.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC lib/rhashtable.o CC lib/reciprocal_div.o CC lib/string_helpers.o CC lib/hexdump.o CC lib/kstrtox.o CC lib/iomap_copy.o CC lib/devres.o CC lib/hweight.o CC lib/bitrev.o HOSTCC lib/gen_crc32table GEN lib/crc32table.h CC lib/crc32.o CC lib/zlib_inflate/inffast.o CC lib/zlib_inflate/inflate.o CC lib/zlib_inflate/infutil.o CC lib/zlib_inflate/inftrees.o CC lib/zlib_inflate/inflate_syms.o LD lib/zlib_inflate/zlib_inflate.o LD lib/zlib_inflate/built-in.o CC lib/syscall.o CC lib/nlattr.o CC lib/atomic64.o CC lib/dynamic_queue_limits.o CC lib/strncpy_from_user.o CC lib/strnlen_user.o CC lib/net_utils.o LD lib/built-in.o CC lib/argv_split.o CC lib/bug.o CC lib/cmdline.o CC lib/ctype.o CC lib/dec_and_lock.o CC lib/decompress.o CC lib/dump_stack.o CC lib/earlycpio.o CC lib/extable.o CC lib/fdt.o CC lib/fdt_empty_tree.o CC lib/fdt_ro.o CC lib/fdt_rw.o CC lib/fdt_strerror.o CC lib/fdt_sw.o CC lib/fdt_wip.o CC lib/flex_proportions.o CC lib/idr.o CC lib/int_sqrt.o CC lib/ioremap.o CC lib/irq_regs.o CC lib/is_single_threaded.o CC lib/klist.o CC lib/kobject.o CC lib/kobject_uevent.o CC lib/md5.o CC lib/plist.o CC lib/proportions.o CC lib/radix-tree.o CC lib/ratelimit.o CC lib/rbtree.o CC lib/seq_buf.o CC lib/sha1.o CC lib/show_mem.o CC lib/string.o CC lib/timerqueue.o CC lib/vsprintf.o AR lib/lib.a LINK vmlinux LD vmlinux.o MODPOST vmlinux.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o KSYM .tmp_kallsyms1.o KSYM .tmp_kallsyms2.o LD vmlinux SYSMAP System.map BOOTCC arch/powerpc/boot/cpm-serial.o BOOTAS arch/powerpc/boot/crt0.o BOOTAS arch/powerpc/boot/crtsavres.o BOOTCC arch/powerpc/boot/cuboot.o BOOTCC arch/powerpc/boot/devtree.o BOOTAS arch/powerpc/boot/div64.o BOOTCC arch/powerpc/boot/elf_util.o COPY arch/powerpc/boot/fdt.h COPY arch/powerpc/boot/libfdt.h COPY arch/powerpc/boot/libfdt_internal.h COPY arch/powerpc/boot/fdt.c BOOTCC arch/powerpc/boot/fdt.o COPY arch/powerpc/boot/fdt_ro.c BOOTCC arch/powerpc/boot/fdt_ro.o COPY arch/powerpc/boot/fdt_rw.c BOOTCC arch/powerpc/boot/fdt_rw.o COPY arch/powerpc/boot/fdt_strerror.c BOOTCC arch/powerpc/boot/fdt_strerror.o COPY arch/powerpc/boot/fdt_sw.c BOOTCC arch/powerpc/boot/fdt_sw.o COPY arch/powerpc/boot/fdt_wip.c BOOTCC arch/powerpc/boot/fdt_wip.o BOOTCC arch/powerpc/boot/fsl-soc.o COPY arch/powerpc/boot/zlib.h COPY arch/powerpc/boot/zconf.h COPY arch/powerpc/boot/zutil.h COPY arch/powerpc/boot/inffast.h COPY arch/powerpc/boot/inffixed.h COPY arch/powerpc/boot/inflate.h COPY arch/powerpc/boot/inftrees.h COPY arch/powerpc/boot/infutil.h BOOTCC arch/powerpc/boot/gunzip_util.o COPY arch/powerpc/boot/inffast.c BOOTCC arch/powerpc/boot/inffast.o COPY arch/powerpc/boot/inflate.c BOOTCC arch/powerpc/boot/inflate.o COPY arch/powerpc/boot/inftrees.c BOOTCC arch/powerpc/boot/inftrees.o BOOTCC arch/powerpc/boot/libfdt-wrapper.o BOOTCC arch/powerpc/boot/main.o BOOTCC arch/powerpc/boot/mpc52xx-psc.o BOOTCC arch/powerpc/boot/mpc8xx.o /home/kisskb/slave/src/arch/powerpc/boot/mpc8xx.c: In function 'mpc885_get_clock': /home/kisskb/slave/src/arch/powerpc/boot/mpc8xx.c:27:26: warning: variable 'div' set but not used [-Wunused-but-set-variable] BOOTCC arch/powerpc/boot/mpsc.o BOOTCC arch/powerpc/boot/ns16550.o BOOTCC arch/powerpc/boot/ofconsole.o BOOTCC arch/powerpc/boot/oflib.o BOOTCC arch/powerpc/boot/planetcore.o BOOTCC arch/powerpc/boot/serial.o BOOTCC arch/powerpc/boot/simple_alloc.o BOOTCC arch/powerpc/boot/stdio.o BOOTCC arch/powerpc/boot/stdlib.o BOOTAS arch/powerpc/boot/string.o BOOTCC arch/powerpc/boot/uartlite.o BOOTAS arch/powerpc/boot/util.o BOOTAR arch/powerpc/boot/wrapper.a BOOTCC arch/powerpc/boot/cuboot-8xx.o BOOTCC arch/powerpc/boot/ep88xc.o BOOTCC arch/powerpc/boot/epapr.o BOOTAS arch/powerpc/boot/fixed-head.o BOOTCC arch/powerpc/boot/of.o BOOTCC arch/powerpc/boot/redboot-8xx.o BOOTCC arch/powerpc/boot/empty.o /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc -m32 -Wp,-MD,arch/powerpc/boot/.zImage.lds.d -nostdinc -isystem /opt/cross/gcc-4.6.3-nolibc/powerpc-linux/lib/gcc/powerpc-linux/4.6.3/include -I/home/kisskb/slave/src/arch/powerpc/include -Iarch/powerpc/include/generated/uapi -Iarch/powerpc/include/generated -I/home/kisskb/slave/src/include -Iinclude -I/home/kisskb/slave/src/arch/powerpc/include/uapi -Iarch/powerpc/include/generated/uapi -I/home/kisskb/slave/src/include/uapi -Iinclude/generated/uapi -include /home/kisskb/slave/src/include/linux/kconfig.h -D__KERNEL__ -I/home/kisskb/slave/src/arch/powerpc -Iarch/powerpc -E -Wp,-MD,arch/powerpc/boot/.zImage.lds.d -P -Upowerpc \ -D__ASSEMBLY__ -DLINKER_SCRIPT -o arch/powerpc/boot/zImage.lds /home/kisskb/slave/src/arch/powerpc/boot/zImage.lds.S HOSTCC arch/powerpc/boot/addnote HOSTCC arch/powerpc/boot/hack-coff HOSTCC arch/powerpc/boot/mktree DTC arch/powerpc/boot/mpc885ads.dtb WRAP arch/powerpc/boot/cuImage.mpc885ads Image Name: Linux-4.2.0-rc2-g38ca470 Created: Tue Aug 18 16:44:14 2015 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1551571 Bytes = 1515.21 kB = 1.48 MB Load Address: 00400000 Entry Point: 004001a4 rm arch/powerpc/boot/mpc885ads.dtb make[1]: Leaving directory '/home/kisskb/slave/build/mpe_mpc885_ads_defconfig_powerpc' Completed OK # rm -rf /home/kisskb/slave/build/mpe_mpc885_ads_defconfig_powerpc # Build took: 0:04:51.719854