# git rev-parse -q --verify f1c2f8857c5aa6c92aa903bc06437503422e5925^{commit}
f1c2f8857c5aa6c92aa903bc06437503422e5925
already have revision, skipping fetch
# git checkout -q -f -B kisskb f1c2f8857c5aa6c92aa903bc06437503422e5925
# git clean -qxdf
# < git log -1
# commit f1c2f8857c5aa6c92aa903bc06437503422e5925
# Merge: cd08f68c659f 074400a7be61
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Jan 5 11:48:44 2019 -0800
# 
#     Merge tag 'powerpc-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
#     
#     Pull powerpc fixes from Michael Ellerman:
#      "A fix for the recent access_ok() change, which broke the build. We
#       recently added a use of type in order to squash a warning elsewhere
#       about type being unused.
#     
#       A handful of other minor build fixes, and one defconfig update.
#     
#       Thanks to: Christian Lamparter, Christophe Leroy, Diana Craciun,
#       Mathieu Malaterre"
#     
#     * tag 'powerpc-4.21-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
#       powerpc: Drop use of 'type' from access_ok()
#       KVM: PPC: Book3S HV: radix: Fix uninitialized var build error
#       powerpc/configs: Add PPC4xx_OCM to ppc40x_defconfig
#       powerpc/4xx/ocm: Fix phys_addr_t printf warnings
#       powerpc/4xx/ocm: Fix compilation error due to PAGE_KERNEL usage
#       powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 f1c2f8857c5aa6c92aa903bc06437503422e5925
# < make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_KCOV=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n
# Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n
# Added to kconfig CONFIG_UML_NET=n
# Added to kconfig CONFIG_UML_NET_ETHERTAP=n
# Added to kconfig CONFIG_UML_NET_TUNTAP=n
# Added to kconfig CONFIG_UML_NET_SLIP=n
# Added to kconfig CONFIG_UML_NET_DAEMON=n
# Added to kconfig CONFIG_UML_NET_VDE=n
# Added to kconfig CONFIG_UML_NET_MCAST=n
# Added to kconfig CONFIG_UML_NET_PCAP=n
# Added to kconfig CONFIG_UML_NET_SLIRP=n
# Added to kconfig CONFIG_GCOV_KERNEL=n
# yes \n | make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/kernel/skas/uaccess.c: In function 'do_op_one_page':
/kisskb/src/arch/um/kernel/skas/uaccess.c:62:10: warning: unused variable 'buf' [-Wunused-variable]
  jmp_buf buf;
          ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'is_umdir_used':
/kisskb/src/arch/um/os-Linux/umid.c:138:2: warning: ISO C90 forbids variable length array 'file' [-Wvla]
  char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")];
  ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'create_pid_file':
/kisskb/src/arch/um/os-Linux/umid.c:213:2: warning: ISO C90 forbids variable length array 'file' [-Wvla]
  char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")];
  ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'remove_umid_dir':
/kisskb/src/arch/um/os-Linux/umid.c:388:2: warning: ISO C90 forbids variable length array 'dir' [-Wvla]
  char dir[strlen(uml_dir) + UMID_LEN + 1], err;
  ^
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1263:3: warning: 'root' may be used uninitialized in this function [-Wmaybe-uninitialized]
   percpu_ref_reinit(&root->cgrp.self.refcnt);
   ^
/kisskb/src/kernel/bpf/verifier.c: In function 'check_btf_info':
/kisskb/src/kernel/bpf/verifier.c:5030:4: warning: 'prev_offset' may be used uninitialized in this function [-Wmaybe-uninitialized]
    verbose(env,
    ^
/kisskb/src/kernel/bpf/verifier.c:4965:38: note: 'prev_offset' was declared here
  u32 i, nfuncs, urec_size, min_size, prev_offset;
                                      ^
/kisskb/src/security/apparmor/policy_unpack.c: In function 'unpack_trans_table':
/kisskb/src/security/apparmor/policy_unpack.c:496:9: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
      str[pos] = ':';
         ^
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (ret == -EOPNOTSUPP)
     ^
/kisskb/src/lib/lz4/lz4hc_compress.c: In function 'LZ4HC_compress_generic':
/kisskb/src/lib/lz4/lz4hc_compress.c:579:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^
drivers/dma-buf/udmabuf.o: In function `map_udmabuf':
/kisskb/src/include/linux/dma-mapping.h:343: undefined reference to `dma_direct_map_sg'
drivers/fpga/dfl-afu-dma-region.o: In function `afu_dma_map_region':
/kisskb/src/include/linux/dma-mapping.h:377: undefined reference to `dma_direct_map_page'
collect2: error: ld returned 1 exit status
make[1]: *** [/kisskb/src/Makefile:1026: vmlinux] Error 1
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_um-allyesconfig_um-x86_64
# Build took: 0:02:44.435151