Buildresult: gustavoars/arm64-allmodconfig/arm64-gcc5 built on Feb 12 2020, 04:44

kisskb

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Status:	OK
Date/Time:	Feb 12 2020, 04:44
Duration:	0:21:37.364658
Builder:	blade46
Revision:	treewide: Replace zero-length arrays with flexible array member (`56ca73e491a54bd7be10e398593977df9ee4d4ff)`
Target:	gustavoars/arm64-allmodconfig/arm64-gcc5
Branch:	gustavoars
Compiler:	arm64-gcc5 (aarch64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.25.1)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (5) warning: The last gc run reported the following. Please correct the root cause warning: There are too many unreachable loose objects; run 'git prune' to remove them. include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] Full Log # git rev-parse -q --verify 56ca73e491a54bd7be10e398593977df9ee4d4ff^{commit} # git fetch -q -n -f https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git for-next/kspp warning: The last gc run reported the following. Please correct the root cause and remove .git/gc.log. Automatic cleanup will not be performed until the file is removed. warning: There are too many unreachable loose objects; run 'git prune' to remove them. # git rev-parse -q --verify 56ca73e491a54bd7be10e398593977df9ee4d4ff^{commit} 56ca73e491a54bd7be10e398593977df9ee4d4ff # git checkout -q -f -B kisskb 56ca73e491a54bd7be10e398593977df9ee4d4ff # git clean -qxdf # < git log -1 # commit 56ca73e491a54bd7be10e398593977df9ee4d4ff # Author: Gustavo A. R. Silva <gustavo@embeddedor.com> # Date: Tue Feb 11 10:00:37 2020 -0600 # # treewide: Replace zero-length arrays with flexible array member # # The current codebase makes use of the zero-length array language # extension to the C90 standard, but the preferred mechanism to declare # variable-length types such as these ones is a flexible array member[1][2], # introduced in C99: # # struct foo { # int stuff; # struct boo array[]; # }; # # By making use of the mechanism above, we will get a compiler warning # in case the flexible array does not occur last in the structure, which # will help us prevent some kind of undefined behavior bugs from being # unadvertenly introduced[3] to the codebase from now on. # # All these instances of code were found with the help of the following # Coccinelle script: # # @@ # identifier S, member, array; # type T1, T2; # @@ # # struct S { # ... # T1 member; # T2 array[ # - 0 # ]; # }; # # [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html # [2] https://github.com/KSPP/linux/issues/21 # [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") # # Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 56ca73e491a54bd7be10e398593977df9ee4d4ff # < make -s -j 32 ARCH=arm64 O=/kisskb/build/gustavoars_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- allmodconfig # make -s -j 32 ARCH=arm64 O=/kisskb/build/gustavoars_arm64-allmodconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum arch/arm64/Makefile:35: LSE atomics not supported by binutils In file included from /kisskb/src/include/linux/rwsem.h:16:0, from /kisskb/src/include/linux/notifier.h:15, from /kisskb/src/include/linux/clk.h:14, from /kisskb/src/drivers/tty/serial/sh-sci.c:20: /kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/tty/serial/sh-sci.c:1348:16: note: 'flags' was declared here unsigned long flags; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] pd->msg->buf[real_pos] = data; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here unsigned char data; ^ In file included from /kisskb/src/include/linux/wait.h:9:0, from /kisskb/src/include/linux/net.h:19, from /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:8: /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c: In function 'siw_proc_send': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:335:16: note: 'flags' was declared here unsigned long flags; ^ Completed OK # rm -rf /kisskb/build/gustavoars_arm64-allmodconfig_arm64-gcc5.4 # Build took: 0:21:37.364658

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