Hi, [auto build test WARNING on stable/master] [also build test WARNING on v4.7-rc7 next-20160722] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Michael-S-Tsirkin/virtio-new-feature-to-detect-IOMMU-device-quirk/20160724-030032 base: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git master reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute drivers/virtio/virtio_ring.c:1109:22: sparse: undefined identifier 'VIRTIO_F_IOMMU_PASSTHROUGH' drivers/virtio/virtio_ring.c:1113:50: sparse: undefined identifier 'VIRTIO_F_IOMMU_PASSTHROUGH' >> drivers/virtio/virtio_ring.c:1109:22: sparse: incompatible types for 'case' statement drivers/virtio/virtio_ring.c:1109:22: sparse: Expected constant expression in case statement drivers/virtio/virtio_ring.c: In function 'vring_transport_features': drivers/virtio/virtio_ring.c:1109:8: error: 'VIRTIO_F_IOMMU_PASSTHROUGH' undeclared (first use in this function) case VIRTIO_F_IOMMU_PASSTHROUGH: ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/virtio/virtio_ring.c:1109:8: note: each undeclared identifier is reported only once for each function it appears in vim +/case +1109 drivers/virtio/virtio_ring.c 1093 } 1094 EXPORT_SYMBOL_GPL(vring_del_virtqueue); 1095 1096 /* Manipulates transport-specific feature bits. */ 1097 void vring_transport_features(struct virtio_device *vdev) 1098 { 1099 unsigned int i; 1100 1101 for (i = VIRTIO_TRANSPORT_F_START; i < VIRTIO_TRANSPORT_F_END; i++) { 1102 switch (i) { 1103 case VIRTIO_RING_F_INDIRECT_DESC: 1104 break; 1105 case VIRTIO_RING_F_EVENT_IDX: 1106 break; 1107 case VIRTIO_F_VERSION_1: 1108 break; > 1109 case VIRTIO_F_IOMMU_PASSTHROUGH: 1110 break; 1111 case VIRTIO_F_IOMMU_PLATFORM: 1112 /* Ignore passthrough hint for now, obey kernel config. */ 1113 __virtio_clear_bit(vdev, VIRTIO_F_IOMMU_PASSTHROUGH); 1114 break; 1115 default: 1116 /* We don't understand this bit. */ 1117 __virtio_clear_bit(vdev, i); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
