> On Jul 25, 2023, at 6:05 AM, Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> wrote: > > selftests: connector: proc_filter build failed with clang-16 due to below > warnings / errors on Linux next-20230725. > > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > > clang --target=aarch64-linux-gnu -fintegrated-as > -Werror=unknown-warning-option -Werror=ignored-optimization-argument > -Werror=option-ignored -Werror=unused-command-line-argument > --target=aarch64-linux-gnu -fintegrated-as -Wall proc_filter.c -o > /home/tuxbuild/.cache/tuxmake/builds/1/build/kselftest/connector/proc_filter > proc_filter.c:42:12: error: invalid application of 'sizeof' to an > incomplete type 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^~~~~~~~~~~~~~~ > proc_filter.c:22:5: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ ~~~~~~~~~~~~~~~~~~~ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:48:20: error: invalid application of 'sizeof' to an > incomplete type 'struct proc_input' > hdr->nlmsg_len = NL_MESSAGE_SIZE; > ^~~~~~~~~~~~~~~ > proc_filter.c:22:5: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ ~~~~~~~~~~~~~~~~~~~ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:64:14: error: invalid application of 'sizeof' to an > incomplete type 'struct proc_input' > msg->len = sizeof(struct proc_input); > ^ ~~~~~~~~~~~~~~~~~~~ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:65:35: error: incomplete definition of type 'struct proc_input' > ((struct proc_input *)msg->data)->mcast_op = > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:66:31: error: incomplete definition of type 'struct proc_input' > ((struct proc_input *)pinp)->mcast_op; > ~~~~~~~~~~~~~~~~~~~~~~~~~~~^ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:67:35: error: incomplete definition of type 'struct proc_input' > ((struct proc_input *)msg->data)->event_type = > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:68:31: error: incomplete definition of type 'struct proc_input' > ((struct proc_input *)pinp)->event_type; > ~~~~~~~~~~~~~~~~~~~~~~~~~~~^ > proc_filter.c:42:12: note: forward declaration of 'struct proc_input' > char buff[NL_MESSAGE_SIZE]; > ^ > proc_filter.c:22:19: note: expanded from macro 'NL_MESSAGE_SIZE' > sizeof(struct proc_input)) > ^ > proc_filter.c:245:20: error: variable has incomplete type 'struct proc_input' > struct proc_input input; > ^ > proc_filter.c:245:9: note: forward declaration of 'struct proc_input' > struct proc_input input; > ^ > proc_filter.c:264:22: error: use of undeclared identifier > 'PROC_EVENT_NONZERO_EXIT' > input.event_type = PROC_EVENT_NONZERO_EXIT; > ^ > 9 errors generated. > make[4]: Leaving directory '/builds/linux/tools/testing/selftests/connector’ > > These are expected since you need to have the changes in kernel that were committed with this patch to be installed on the kernel on which this is being compiled/run on. That is what the test is for, and the check to make it run on previous kernels as well was made a runtime check. Do you expect this to compile on a kernel without the corresponding kernel changes that were committed with this patch? Anjali > > Links: > - https://urldefense.com/v3/__https://storage.tuxsuite.com/public/linaro/lkft/builds/2T3676HpK243gMBLYJCp4OXDmWl/__;!!ACWV5N9M2RV99hQ!KGpNLNgF9TB1Di6vnsIBKgjQbqYyghUqeNr4q4xMl0uGesYONZ7h5Gl26vUL62nVt-9YTJmiyE6cwUM7sAjAWYIVKZNKvMYc$ > > steps to reproduce: > - https://urldefense.com/v3/__https://storage.tuxsuite.com/public/linaro/lkft/builds/2T3676HpK243gMBLYJCp4OXDmWl/tuxmake_reproducer.sh__;!!ACWV5N9M2RV99hQ!KGpNLNgF9TB1Di6vnsIBKgjQbqYyghUqeNr4q4xMl0uGesYONZ7h5Gl26vUL62nVt-9YTJmiyE6cwUM7sAjAWYIVKSfQKbzK$ > -- > Linaro LKFT > https://urldefense.com/v3/__https://lkft.linaro.org__;!!ACWV5N9M2RV99hQ!KGpNLNgF9TB1Di6vnsIBKgjQbqYyghUqeNr4q4xMl0uGesYONZ7h5Gl26vUL62nVt-9YTJmiyE6cwUM7sAjAWYIVKYlwlLOK$
