Buildresult: linus/maple_defconfig/powerpc-gcc4.6 built on Nov 6 2019, 06:34

kisskb

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Status:	OK
Date/Time:	Nov 6 2019, 06:34
Duration:	0:01:30.523651
Builder:	blade4b
Revision:	Merge tag 'for-linus-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux (`26bc672134241a080a83b2ab9aa8abede8d30e1c)`
Target:	linus/maple_defconfig/powerpc-gcc4.6
Branch:	linus
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	maple_defconfig (download)
Log:	Download original Possible warnings (8) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U1c80>]' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1496:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' 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/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 26bc672134241a080a83b2ab9aa8abede8d30e1c^{commit} 26bc672134241a080a83b2ab9aa8abede8d30e1c already have revision, skipping fetch # git checkout -q -f -B kisskb 26bc672134241a080a83b2ab9aa8abede8d30e1c # git clean -qxdf # < git log -1 # commit 26bc672134241a080a83b2ab9aa8abede8d30e1c # Merge: 7111fa1151e3 fa729c4df558 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Nov 5 09:44:02 2019 -0800 # # Merge tag 'for-linus-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux # # Pull clone3 stack argument update from Christian Brauner: # "This changes clone3() to do basic stack validation and to set up the # stack depending on whether or not it is growing up or down. # # With clone3() the expectation is now very simply that the .stack # argument points to the lowest address of the stack and that # .stack_size specifies the initial stack size. This is diferent from # legacy clone() where the "stack" argument had to point to the lowest # or highest address of the stack depending on the architecture. # # clone3() was released with 5.3. Currently, it is not documented and # very unclear to userspace how the stack and stack_size argument have # to be passed. After talking to glibc folks we concluded that changing # clone3() to determine stack direction and doing basic validation is # the right course of action. # # Note, this is a potentially user visible change. In the very unlikely # case, that it breaks someone's use-case we will revert. (And then e.g. # place the new behavior under an appropriate flag.) # # Note that passing an empty stack will continue working just as before. # Breaking someone's use-case is very unlikely. Neither glibc nor musl # currently expose a wrapper for clone3(). There is currently also no # real motivation for anyone to use clone3() directly. First, because # using clone{3}() with stacks requires some assembly (see glibc and # musl). Second, because it does not provide features that legacy # clone() doesn't. New features for clone3() will first happen in v5.5 # which is why v5.4 is still a good time to try and make that change now # and backport it to v5.3. # # I did a codesearch on https://codesearch.debian.net, github, and # gitlab and could not find any software currently relying directly on # clone3(). I expect this to change once we land CLONE_CLEAR_SIGHAND # which was a request coming from glibc at which point they'll likely # start using it" # # * tag 'for-linus-2019-11-05' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: # clone3: validate stack arguments # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 26bc672134241a080a83b2ab9aa8abede8d30e1c # < make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- maple_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 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:204:16: 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:140:32: warning: 'levelspread[<U1c80>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U1c80>]' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: 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:1852:6: 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:1496:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /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:338:21: note: 'pdeo' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_maple_defconfig_powerpc-gcc4.6 # Build took: 0:01:30.523651

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