Hi Bjorn, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/aer-squash head: 8079c81ec30626bea7c07c1e4b814efbe3d81044 commit: 8079c81ec30626bea7c07c1e4b814efbe3d81044 [12/12] PCI/AER: Hoist aerdrv.c, aer_inject.c up to drivers/pci/pcie/ reproduce: # apt-get install sparse git checkout 8079c81ec30626bea7c07c1e4b814efbe3d81044 make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) >> drivers/pci/pcie/aer.c:1038:6: sparse: symbol 'aer_isr' was not declared. Should it be static? Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation