> From: kbuild test robot <lkp(a)intel.com&gt; > Sent: Thursday, March 5, 2020 12:57 PM > To: Gustavo A. R. Silva <gustavo(a)embeddedor.com&gt; > Cc: kbuild-all(a)lists.01.org; Bjorn Helgaas <helgaas(a)kernel.org&gt;; Lorenzo > Pieralisi <lorenzo.pieralisi(a)arm.com&gt;; Dexuan Cui <decui(a)microsoft.com&gt; > Subject: [lpieralisi-pci:pci/hv 5/5] drivers/pci/controller/pci-hyperv.c:2101:26: > sparse: sparse: incorrect type in assignment (different base types) > > tree: ... > head: d0e3c3fdf000bacd3fb11c6eb97a38ca27fe915c > commit: d0e3c3fdf000bacd3fb11c6eb97a38ca27fe915c [5/5] PCI: hv: Replace > zero-length array with flexible-array member > reproduce: > # apt-get install sparse > # sparse version: v0.6.1-174-g094d5a94-dirty > git checkout d0e3c3fdf000bacd3fb11c6eb97a38ca27fe915c > make ARCH=x86_64 allmodconfig > make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp(a)intel.com&gt; There is a merge mistake, causing this building failure. And, Long Li's patch introduced a new zero-lengh array in struct pci_bus_relations2: ae685159fb7c ("PCI: hv: Add support for protocol 1.3 and support PCI_BUS_RELATIONS2") The below patch fixes the 2 issues above. I also attached the patch FYI.