# git rev-parse -q --verify 143c97cc652949893c8056c679012f0aeccb80e5^{commit}
143c97cc652949893c8056c679012f0aeccb80e5
already have revision, skipping fetch
# git checkout -q -f -B kisskb 143c97cc652949893c8056c679012f0aeccb80e5
# git clean -qxdf
# git log -1
commit 143c97cc652949893c8056c679012f0aeccb80e5
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Wed Aug 23 18:16:11 2017 -0700

    Revert "pty: fix the cached path of the pty slave file descriptor in the master"
    
    This reverts commit c8c03f1858331e85d397bacccd34ef409aae993c.
    
    It turns out that while fixing the ptmx file descriptor to have the
    correct 'struct path' to the associated slave pty is a really good
    thing, it breaks some user space tools for a very annoying reason.
    
    The problem is that /dev/ptmx and its associated slave pty (/dev/pts/X)
    are on different mounts.  That was what caused us to have the wrong path
    in the first place (we would mix up the vfsmount of the 'ptmx' node,
    with the dentry of the pty slave node), but it also means that now while
    we use the right vfsmount, having the pty master open also keeps the pts
    mount busy.
    
    And it turn sout that that makes 'pbuilder' very unhappy, as noted by
    Stefan Lippers-Hollmann:
    
     "This patch introduces a regression for me when using pbuilder
      0.228.7[2] (a helper to build Debian packages in a chroot and to
      create and update its chroots) when trying to umount /dev/ptmx (inside
      the chroot) on Debian/ unstable (full log and pbuilder configuration
      file[3] attached).
    
      [...]
      Setting up build-essential (12.3) ...
      Processing triggers for libc-bin (2.24-15) ...
      I: unmounting dev/ptmx filesystem
      W: Could not unmount dev/ptmx: umount: /var/cache/pbuilder/build/1340/dev/ptmx: target is busy
              (In some cases useful info about processes that
               use the device is found by lsof(8) or fuser(1).)"
    
    apparently pbuilder tries to unmount the /dev/pts filesystem while still
    holding at least one master node open, which is arguably not very nice,
    but we don't break user space even when fixing other bugs.
    
    So this commit has to be reverted.
    
    I'll try to figure out a way to avoid caching the path to the slave pty
    in the master pty.  The only thing that actually wants that slave pty
    path is the "TIOCGPTPEER" ioctl, and I think we could just recreate the
    path at that time.
    
    Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
    Cc: Eric W Biederman <ebiederm@xmission.com>
    Cc: Christian Brauner <christian.brauner@canonical.com>
    Cc: Al Viro <viro@zeniv.linux.org.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 143c97cc652949893c8056c679012f0aeccb80e5
# < make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  allyesconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# yes \n | make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_sh-allyesconfig_sh4'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  GEN     ./Makefile
  WRAP    arch/sh/include/generated/uapi/asm/ipcbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/kvm_para.h
  WRAP    arch/sh/include/generated/uapi/asm/msgbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/param.h
  WRAP    arch/sh/include/generated/uapi/asm/mman.h
  WRAP    arch/sh/include/generated/uapi/asm/errno.h
  WRAP    arch/sh/include/generated/uapi/asm/bitsperlong.h
  WRAP    arch/sh/include/generated/uapi/asm/fcntl.h
  WRAP    arch/sh/include/generated/uapi/asm/poll.h
  WRAP    arch/sh/include/generated/uapi/asm/ioctl.h
  WRAP    arch/sh/include/generated/uapi/asm/resource.h
  WRAP    arch/sh/include/generated/uapi/asm/sembuf.h
  WRAP    arch/sh/include/generated/uapi/asm/shmbuf.h
  WRAP    arch/sh/include/generated/uapi/asm/siginfo.h
  WRAP    arch/sh/include/generated/uapi/asm/socket.h
  WRAP    arch/sh/include/generated/uapi/asm/statfs.h
  WRAP    arch/sh/include/generated/uapi/asm/termbits.h
  WRAP    arch/sh/include/generated/uapi/asm/termios.h
  WRAP    arch/sh/include/generated/uapi/asm/ucontext.h
  UPD     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  UPD     include/generated/uapi/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  HOSTCC  scripts/basic/bin2c
  Using /home/kisskb/slave/src as source for kernel
  WRAP    arch/sh/include/generated/asm/clkdev.h
  WRAP    arch/sh/include/generated/asm/current.h
  WRAP    arch/sh/include/generated/asm/delay.h
  WRAP    arch/sh/include/generated/asm/div64.h
  WRAP    arch/sh/include/generated/asm/emergency-restart.h
  WRAP    arch/sh/include/generated/asm/exec.h
  WRAP    arch/sh/include/generated/asm/irq_regs.h
  WRAP    arch/sh/include/generated/asm/irq_work.h
  WRAP    arch/sh/include/generated/asm/local.h
  WRAP    arch/sh/include/generated/asm/local64.h
  WRAP    arch/sh/include/generated/asm/mcs_spinlock.h
  WRAP    arch/sh/include/generated/asm/mm-arch-hooks.h
  WRAP    arch/sh/include/generated/asm/parport.h
  WRAP    arch/sh/include/generated/asm/percpu.h
  WRAP    arch/sh/include/generated/asm/preempt.h
  WRAP    arch/sh/include/generated/asm/rwsem.h
  WRAP    arch/sh/include/generated/asm/serial.h
  WRAP    arch/sh/include/generated/asm/sizes.h
  WRAP    arch/sh/include/generated/asm/trace_clock.h
  WRAP    arch/sh/include/generated/asm/xor.h
  HOSTCC  scripts/kallsyms
  HOSTCC  scripts/pnmtologo
  HOSTCC  scripts/conmakehash
  HOSTCC  scripts/insert-sys-cert
  HOSTCC  scripts/asn1_compiler
  HOSTCC  scripts/extract-cert
  HOSTCC  scripts/dtc/fstree.o
  HOSTCC  scripts/dtc/data.o
  HOSTCC  scripts/genksyms/genksyms.o
  HOSTCC  scripts/mod/mk_elfconfig
  SHIPPED scripts/genksyms/parse.tab.c
  HOSTCC  scripts/dtc/checks.o
  HOSTCC  scripts/dtc/srcpos.o
  CC      scripts/mod/devicetable-offsets.s
  HOSTCC  scripts/dtc/flattree.o
  HOSTCC  scripts/dtc/dtc.o
  HOSTCC  scripts/dtc/livetree.o
  CC      scripts/mod/empty.o
  HOSTCC  scripts/dtc/treesource.o
  SHIPPED scripts/dtc/dtc-parser.tab.c
  SHIPPED scripts/dtc/dtc-parser.tab.h
  SHIPPED scripts/genksyms/lex.lex.c
  HOSTCC  scripts/dtc/util.o
  SHIPPED scripts/dtc/dtc-lexer.lex.c
  SHIPPED scripts/genksyms/keywords.hash.c
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTCC  scripts/genksyms/lex.lex.o
  HOSTCC  scripts/dtc/dtc-parser.tab.o
  HOSTCC  scripts/dtc/dtc-lexer.lex.o
  HOSTCC  scripts/selinux/genheaders/genheaders
  HOSTCC  scripts/selinux/mdp/mdp
  Generating include/generated/machtypes.h
  CHK     scripts/mod/devicetable-offsets.h
  UPD     scripts/mod/devicetable-offsets.h
  CHK     include/generated/timeconst.h
  CC      kernel/bounds.s
  UPD     include/generated/timeconst.h
  MKELF   scripts/mod/elfconfig.h
  HOSTCC  scripts/mod/modpost.o
  HOSTCC  scripts/mod/file2alias.o
  HOSTCC  scripts/mod/sumversion.o
  CHK     include/generated/bounds.h
  UPD     include/generated/bounds.h
  CC      arch/sh/kernel/asm-offsets.s
  CHK     include/generated/asm-offsets.h
  UPD     include/generated/asm-offsets.h
  CALL    /home/kisskb/slave/src/scripts/checksyscalls.sh
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
  HOSTLD  scripts/genksyms/genksyms
  HOSTLD  scripts/dtc/dtc
  HOSTLD  scripts/mod/modpost
  CHK     include/generated/compile.h
  CC      init/main.o
  CC      init/do_mounts.o
  CC      init/do_mounts_initrd.o
  CC      init/do_mounts_md.o
  CC      init/do_mounts_rd.o
  CC      init/initramfs.o
  CC      init/init_task.o
  CC      init/calibrate.o
  HOSTCC  usr/gen_init_cpio
  UPD     include/generated/compile.h
  CC      init/version.o
  AS      arch/sh/kernel/debugtraps.o
  CC      arch/sh/kernel/dma-nommu.o
  CC      arch/sh/mm/alignment.o
  CC      arch/sh/kernel/dumpstack.o
  CC      arch/sh/kernel/io.o
  CC      arch/sh/kernel/irq_32.o
  CC      arch/sh/mm/cache.o
  CC      arch/sh/kernel/kdebugfs.o
  CC      arch/sh/boards/of-generic.o
  CC      arch/sh/kernel/idle.o
  CC      arch/sh/mm/init.o
  CC      arch/sh/mm/consistent.o
  CC      arch/sh/kernel/irq.o
  CC      arch/sh/kernel/nmi_debug.o
  CC      arch/sh/mm/mmap.o
  CC      arch/sh/mm/cache-sh2.o
  CC      arch/sh/mm/nommu.o
  CC      arch/sh/kernel/process_32.o
  CC      arch/sh/kernel/process.o
  CC      arch/sh/kernel/machvec.o
  CC      arch/sh/mm/extable_32.o
  CC      arch/sh/kernel/ptrace.o
  CC      arch/sh/kernel/signal_32.o
  CC      arch/sh/kernel/ptrace_32.o
  CC      arch/sh/mm/asids-debugfs.o
  CC      arch/sh/kernel/reboot.o
  CC      arch/sh/kernel/setup.o
  CC      arch/sh/kernel/return_address.o
  CC      arch/sh/kernel/time.o
  CC      arch/sh/kernel/sys_sh.o
  AS      arch/sh/kernel/syscalls_32.o
  CC      arch/sh/kernel/iomap.o
  CC      arch/sh/kernel/traps_32.o
  CC      arch/sh/kernel/sys_sh32.o
  CC      arch/sh/kernel/unwinder.o
  CC      arch/sh/kernel/topology.o
  CC      arch/sh/kernel/traps.o
  CC      arch/sh/kernel/sh_bios.o
  CC      arch/sh/math-emu/math.o
  CC      arch/sh/kernel/kgdb.o
  CC      arch/sh/kernel/cpu/irq/imask.o
  GEN     usr/initramfs_data.cpio
  AS      arch/sh/kernel/cpu/sh2/ex.o
  CC      arch/sh/kernel/cpu/sh2/probe.o
  AS      arch/sh/kernel/cpu/sh2/entry.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S: Assembler messages:
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:89: Warning: overflow in branch to __restore_all; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:208: Warning: overflow in branch to syscall_call; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:356: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:358: Warning: overflow in branch to syscall_trace_entry; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:389: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/home/kisskb/slave/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:392: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
  CC      arch/sh/kernel/sh_ksyms_32.o
  CC      arch/sh/kernel/module.o
  AR      arch/sh/boards/built-in.o
  CC      arch/sh/kernel/cpu/sh2/setup-sh7619.o
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:23:0:
/home/kisskb/slave/src/include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from /home/kisskb/slave/src/arch/sh/math-emu/math.c:24:0:
/home/kisskb/slave/src/include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:58:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
/home/kisskb/slave/src/include/linux/kernel.h:57:0: note: this is the location of the previous definition
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_gt':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcmp_eq':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fadd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/cpu/sh2/clock-sh7619.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fsub':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
  CC      arch/sh/kernel/crash_dump.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmul':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/cpu/clock-cpg.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fdiv':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fmac':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:145:2: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
  AS      usr/initramfs_data.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ffloat':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'ftrc':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvsd':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:323:2: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
  CC      arch/sh/kernel/cpu/init.o
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: In function 'fcnvds':
/home/kisskb/slave/src/arch/sh/math-emu/math.c:333:1: warning: left shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: left shift count >= width of type [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/home/kisskb/slave/src/arch/sh/math-emu/math.c: At top level:
/home/kisskb/slave/src/arch/sh/math-emu/math.c:505:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
  CC      arch/sh/kernel/stacktrace.o
  CC      arch/sh/kernel/kprobes.o
  CC      arch/sh/kernel/cpu/clock.o
  CC      arch/sh/kernel/cpu/fpu.o
  CC      arch/sh/kernel/ftrace.o
  CC      arch/sh/kernel/disassemble.o
  CC      arch/sh/kernel/dwarf.o
  CC      arch/sh/kernel/perf_callchain.o
  CC      arch/sh/kernel/perf_event.o
  AR      usr/built-in.o
  LDS     arch/sh/kernel/vmlinux.lds
  CC      arch/sh/kernel/hw_breakpoint.o
  AS      arch/sh/kernel/head_32.o
make[2]: *** No rule to make target 'arch/sh/boot/dts/.dtb.o', needed by 'arch/sh/boot/dts/built-in.o'.  Stop.
  CC      arch/sh/kernel/cpu/pfc.o
  CC      arch/sh/kernel/cpu/proc.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'cpg_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:52:3: warning: 'arch_init_clk_ops' is deprecated (declared at /home/kisskb/slave/src/arch/sh/include/asm/clock.h:7) [-Wdeprecated-declarations]
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c: In function 'arch_clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:76:2: warning: 'cpg_clk_init' is deprecated (declared at /home/kisskb/slave/src/arch/sh/kernel/cpu/clock-cpg.c:46) [-Wdeprecated-declarations]
/home/kisskb/slave/src/Makefile:1019: recipe for target 'arch/sh/boot/dts' failed
make[1]: *** [arch/sh/boot/dts] Error 2
make[1]: *** Waiting for unfinished jobs....
  AR      arch/sh/kernel/cpu/irq/built-in.o
  AR      arch/sh/mm/built-in.o
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c: In function 'clk_init':
/home/kisskb/slave/src/arch/sh/kernel/cpu/clock.c:25:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
  AR      arch/sh/kernel/cpu/sh2/built-in.o
  AR      arch/sh/kernel/cpu/built-in.o
  AR      init/mounts.o
  AR      init/built-in.o
  AR      arch/sh/kernel/built-in.o
  AR      arch/sh/math-emu/built-in.o
make[1]: *** wait: No child processes.  Stop.
Makefile:145: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 48 ARCH=sh O=/home/kisskb/slave/build/linus_sh-allyesconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/linus_sh-allyesconfig_sh4
# Build took: 0:00:10.453290