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author | 2020-12-15 13:20:15 +0000 | |
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committer | 2020-12-19 09:59:25 +0000 | |
commit | 3daf1f5d3a5918564ae2acdd748b24acaef5bce0 (patch) | |
tree | 84b497fe557a5e9e165f1b281648dcec669d0fb5 /src/svm/fifo_types.h | |
parent | ee6b0e2904ee5123198ffe26a7de3019e16332b2 (diff) |
avf: fix gcc compiling warning on Arm
Initializing struct avf_ip6_psh by {0} using gcc with O2 optimize option
will trigger the -Werror=maybe-uninitialized compiling warning on Arm
because gcc compiler will think some members of the struct avf_ip6_psh
may not be initialized, which probably is a false positive in this case.
The compiling error log is shown as below. Avoid this compiling warning
by explicitly declaring the IPv6 src and dst ip in avf_ip6_psh as
ip6_address_t.
ccache /usr/lib/ccache/gcc-10 -DHAVE_FCNTL64 -DHAVE_GETCPU -DHAVE_MEMFD_CREATE -I/home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src -I. -Iinclude -I/home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/plugins -Iplugins -Iplugins/avf -Wno-address-of-packed-member -g -fPIC -Werror -Wall -march=armv8-a+crc -O2 -fstack-protector -DFORTIFY_SOURCE=2 -fno-common -fPIC -DCLIB_MARCH_VARIANT=cortexa72 -march=armv8-a+crc+crypto -mtune=cortex-a72 -DCLIB_N_PREFETCHES=6 -MD -MT plugins/avf/CMakeFiles/avf_plugin_cortexa72.dir/output.c.o -MF plugins/avf/CMakeFiles/avf_plugin_cortexa72.dir/output.c.o.d -o plugins/avf/CMakeFiles/avf_plugin_cortexa72.dir/output.c.o -c /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/plugins/avf/output.c
In file included from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/vector_funcs.h:41,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/vector.h:196,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/string.h:48,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/mem.h:49,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/vec.h:42,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/format.h:44,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/elf.h:41,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/elf_clib.h:41,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vlib/vlib.h:44,
from /home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/plugins/avf/output.c:18:
/home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/plugins/avf/output.c: In function ‘avf_device_class_tx_fn_cortexa72’:
/home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/vppinfra/byte_order.h:59:10: error: ‘*((void *)&psh+32)’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
59 | return __builtin_bswap16 (x);
| ^~~~~~~~~~~~~~~~~~~~~
/home/snowball/tasks/test_vpp_build/test-patch-9/vpp/src/plugins/avf/output.c:115:23: note: ‘*((void *)&psh+32)’ was declared here
115 | struct avf_ip6_psh psh = { 0 };
| ^~~
Type: fix
Change-Id: I2684b101b07823dfacc4a56cc29d152828d0cf37
Signed-off-by: Jieqiang Wang <jieqiang.wang@arm.com>
Diffstat (limited to 'src/svm/fifo_types.h')
0 files changed, 0 insertions, 0 deletions