Buildresult: gustavoars/sparc64-allmodconfig/sparc64-gcc5 built on Apr 20 2020, 19:55

kisskb

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Status:	OK
Date/Time:	Apr 20 2020, 19:55
Duration:	0:14:10.290285
Builder:	ka1
Revision:	firmware: google: vpd: Replace zero-length array with flexible-array member (`28bf8c4a2f2a6fc2db18574246cefe5373efbdf4)`
Target:	gustavoars/sparc64-allmodconfig/sparc64-gcc5
Branch:	gustavoars
Compiler:	sparc64-gcc5 (sparc64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (9) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] fs/cifs/smb2pdu.c:2899:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wmaybe-uninitialized] kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] include/linux/spinlock.h:289:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] net/mptcp/protocol.c:606:6: warning: 'dfrag_collapsed' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/i2c/busses/i2c-sh_mobile.c:396:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. warning: same module names found: Full Log # git rev-parse -q --verify 28bf8c4a2f2a6fc2db18574246cefe5373efbdf4^{commit} 28bf8c4a2f2a6fc2db18574246cefe5373efbdf4 already have revision, skipping fetch # git checkout -q -f -B kisskb 28bf8c4a2f2a6fc2db18574246cefe5373efbdf4 # git clean -qxdf # < git log -1 # commit 28bf8c4a2f2a6fc2db18574246cefe5373efbdf4 # Author: Gustavo A. R. Silva <gustavo@embeddedor.com> # Date: Fri Feb 21 09:32:33 2020 -0600 # # firmware: google: vpd: Replace zero-length array 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 # inadvertently introduced[3] to the codebase from now on. # # Also, notice that, dynamic memory allocations won't be affected by # this change: # # "Flexible array members have incomplete type, and so the sizeof operator # may not be applied. As a quirk of the original implementation of # zero-length arrays, sizeof evaluates to zero."[1] # # This issue was found with the help of Coccinelle. # # [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-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version # < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version # < git log --format=%s --max-count=1 28bf8c4a2f2a6fc2db18574246cefe5373efbdf4 # < make -s -j 24 ARCH=sparc64 O=/kisskb/build/gustavoars_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_MODULE_SIG=n # < make -s -j 24 ARCH=sparc64 O=/kisskb/build/gustavoars_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- help # make -s -j 24 ARCH=sparc64 O=/kisskb/build/gustavoars_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- olddefconfig # make -s -j 24 ARCH=sparc64 O=/kisskb/build/gustavoars_sparc64-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init': /kisskb/src/fs/cifs/smb2pdu.c:2899:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wmaybe-uninitialized] iov[1].iov_base = in_data_buf; ^ /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here int oldval, ret; ^ 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:289:3: 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/net/mptcp/protocol.c: In function 'mptcp_sendmsg_frag': /kisskb/src/net/mptcp/protocol.c:606:6: warning: 'dfrag_collapsed' may be used uninitialized in this function [-Wmaybe-uninitialized] if (!dfrag_collapsed) { ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:396:26: 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:369:16: note: 'data' was declared here unsigned char data; ^ /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^ kernel: arch/sparc/boot/image is ready kernel: arch/sparc/boot/zImage is ready warning: same module names found: drivers/char/adi.ko drivers/input/joystick/adi.ko Completed OK # rm -rf /kisskb/build/gustavoars_sparc64-allmodconfig_sparc64 # Build took: 0:14:10.290285

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