On Mon, 24 Aug 2020 10:32:52 -0700 Tony Nguyen wrote: > +struct virtchnl_rss_hash { > + u64 hash; > + u16 vport_id; > +}; > + > +VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_rss_hash);
I've added 32bit builds to my local setup since v4 was posted - looks like there's a number of errors here. You can't assume u64 forces a 64bit alignment. Best to specify the padding explicitly. FWIW these are the errors I got but there may be more: In file included from ../drivers/net/ethernet/intel/ice/ice.h:37, from ../drivers/net/ethernet/intel/ice/ice_common.h:7, from ../drivers/net/ethernet/intel/ice/ice_sched.h:7, from ../drivers/net/ethernet/intel/ice/ice_sched.c:4: ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:809:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 809 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_get_capabilities); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:809:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_get_capabilities’ is not an integer constant 809 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_get_capabilities); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:891:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 891 | VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_txq_info_v2); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:891:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_txq_info_v2’ is not an integer constant 891 | VIRTCHNL_CHECK_STRUCT_LEN(40, virtchnl_txq_info_v2); | ^~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:907:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 907 | VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_config_tx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:907:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_config_tx_queues’ is not an integer constant 907 | VIRTCHNL_CHECK_STRUCT_LEN(48, virtchnl_config_tx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:937:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 937 | VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_rxq_info_v2); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:937:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_rxq_info_v2’ is not an integer constant 937 | VIRTCHNL_CHECK_STRUCT_LEN(72, virtchnl_rxq_info_v2); | ^~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:952:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 952 | VIRTCHNL_CHECK_STRUCT_LEN(80, virtchnl_config_rx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:952:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_config_rx_queues’ is not an integer constant 952 | VIRTCHNL_CHECK_STRUCT_LEN(80, virtchnl_config_rx_queues); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:175:36: warning: division by zero [-Wdiv-by-zero] 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) } | ^ ../include/linux/avf/virtchnl.h:1090:1: note: in expansion of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 1090 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_rss_hash); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:1090:31: error: enumerator value for ‘virtchnl_static_assert_virtchnl_rss_hash’ is not an integer constant 1090 | VIRTCHNL_CHECK_STRUCT_LEN(16, virtchnl_rss_hash); | ^~~~~~~~~~~~~~~~~ ../include/linux/avf/virtchnl.h:175:53: note: in definition of macro ‘VIRTCHNL_CHECK_STRUCT_LEN’ 175 | { virtchnl_static_assert_##X = (n)/((sizeof(struct X) == (n)) ? 1 : 0) }