Buildresult: linus/maple_defconfig/powerpc-gcc4.6 built on Aug 21 2018, 09:05

kisskb

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Status:	OK
Date/Time:	Aug 21 2018, 09:05
Duration:	0:01:48.098793
Builder:	ka3
Revision:	Raise the minimum required gcc version to 4.6 (`cafa0010cd51fb711fdcb50fc55f394c5f167a0a)`
Target:	linus/maple_defconfig/powerpc-gcc4.6
Branch:	linus
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	maple_defconfig (download)
Log:	Download original Possible warnings (7) kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/srcutree.c:148:32: warning: 'levelspread[<U9320>]' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2511:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1833:6: warning: 'ret' 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/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify cafa0010cd51fb711fdcb50fc55f394c5f167a0a^{commit} cafa0010cd51fb711fdcb50fc55f394c5f167a0a already have revision, skipping fetch # git checkout -q -f -B kisskb cafa0010cd51fb711fdcb50fc55f394c5f167a0a # git clean -qxdf # < git log -1 # commit cafa0010cd51fb711fdcb50fc55f394c5f167a0a # Author: Joe Perches <joe@perches.com> # Date: Mon Aug 20 13:15:26 2018 -0700 # # Raise the minimum required gcc version to 4.6 # # Various architectures fail to build properly with older versions of the # gcc compiler. # # An example from Guenter Roeck in thread [1]: # > # > In file included from ./include/linux/mm.h:17:0, # > from ./include/linux/pid_namespace.h:7, # > from ./include/linux/ptrace.h:10, # > from arch/openrisc/kernel/asm-offsets.c:32: # > ./include/linux/mm_types.h:497:16: error: flexible array member in otherwise empty struct # > # > This is just an example with gcc 4.5.1 for or32. I have seen the problem # > with gcc 4.4 (for unicore32) as well. # # So update the minimum required version of gcc to 4.6. # # [1] https://lore.kernel.org/lkml/20180814170904.GA12768@roeck-us.net/ # # Miscellanea: # # - Update Documentation/process/changes.rst # # - Remove and consolidate version test blocks in compiler-gcc.h for # versions lower than 4.6 # # Signed-off-by: Joe Perches <joe@perches.com> # Reviewed-by: Kees Cook <keescook@chromium.org> # Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 cafa0010cd51fb711fdcb50fc55f394c5f167a0a # < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- maple_defconfig # make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:148:32: warning: 'levelspread[<U9320>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:96:6: note: 'levelspread[<U9320>]' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2511:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1833:6: warning: 'ret' 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:339:21: note: 'pdeo' was declared here /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here Completed OK # rm -rf /kisskb/build/linus_maple_defconfig_powerpc # Build took: 0:01:48.098793

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