Buildresult: linus/s390-defconfig/s390x-gcc4.6 built on Aug 23 2018, 18:09

kisskb

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Status:	OK
Date/Time:	Aug 23 2018, 18:09
Duration:	0:02:42.023210
Builder:	ka2
Revision:	include/linux/compiler.h: make compiler-.h mutually exclusive (`815f0ddb346c196018d4d8f8f55c12b83da1de3f)`
Target:	linus/s390-defconfig/s390x-gcc4.6
Branch:	linus
Compiler:	s390x-gcc4.6 (s390x-linux-gcc (GCC) 4.6.3)
Config:	defconfig (download)
Log:	Download original Possible warnings (6) kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1746:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 815f0ddb346c196018d4d8f8f55c12b83da1de3f^{commit} 815f0ddb346c196018d4d8f8f55c12b83da1de3f already have revision, skipping fetch # git checkout -q -f -B kisskb 815f0ddb346c196018d4d8f8f55c12b83da1de3f # git clean -qxdf # < git log -1 # commit 815f0ddb346c196018d4d8f8f55c12b83da1de3f # Author: Nick Desaulniers <ndesaulniers@google.com> # Date: Wed Aug 22 16:37:24 2018 -0700 # # include/linux/compiler.h: make compiler-.h mutually exclusive # # Commit cafa0010cd51 ("Raise the minimum required gcc version to 4.6") # recently exposed a brittle part of the build for supporting non-gcc # compilers. # # Both Clang and ICC define __GNUC__, __GNUC_MINOR__, and # __GNUC_PATCHLEVEL__ for quick compatibility with code bases that haven't # added compiler specific checks for __clang__ or __INTEL_COMPILER. # # This is brittle, as they happened to get compatibility by posing as a # certain version of GCC. This broke when upgrading the minimal version # of GCC required to build the kernel, to a version above what ICC and # Clang claim to be. # # Rather than always including compiler-gcc.h then undefining or # redefining macros in compiler-intel.h or compiler-clang.h, let's # separate out the compiler specific macro definitions into mutually # exclusive headers, do more proper compiler detection, and keep shared # definitions in compiler_types.h. # # Fixes: cafa0010cd51 ("Raise the minimum required gcc version to 4.6") # Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> # Suggested-by: Eli Friedman <efriedma@codeaurora.org> # Suggested-by: Joe Perches <joe@perches.com> # Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version # < git log --format=%s --max-count=1 815f0ddb346c196018d4d8f8f55c12b83da1de3f # < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- defconfig # make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' 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/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1746:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_s390-defconfig_s390x # Build took: 0:02:42.023210

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