On Wed, Mar 30, 2022 at 03:50:49PM -0700, Nathan Chancellor wrote: > On Thu, Mar 31, 2022 at 06:43:32AM +0800, kernel test robot wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git for-linus > > head: 18146f25ac6695ce2ed09503de46dafd2b1f36a6 > > commit: 18146f25ac6695ce2ed09503de46dafd2b1f36a6 [4/4] PCI: hv: Remove unused hv_set_msi_entry_from_desc() > > config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220331/202203310629.C8KmndLW-lkp@xxxxxxxxx/config) > > compiler: aarch64-linux-gcc (GCC) 11.2.0 > > reproduce (this is a W=1 build): > > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > > chmod +x ~/bin/make.cross > > # https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?id=18146f25ac6695ce2ed09503de46dafd2b1f36a6 > > git remote add helgaas-pci https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git > > git fetch --no-tags helgaas-pci for-linus > > git checkout 18146f25ac6695ce2ed09503de46dafd2b1f36a6 > > # save the config file to linux build tree > > mkdir build_dir > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash > > > > If you fix the issue, kindly add following tag as appropriate > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > > All errors (new ones prefixed by >>): > > > > drivers/pci/controller/pci-hyperv.c: In function 'hv_irq_unmask': > > >> drivers/pci/controller/pci-hyperv.c:1486:9: error: implicit declaration of function 'hv_set_msi_entry_from_desc' [-Werror=implicit-function-declaration] > > 1486 | hv_set_msi_entry_from_desc(¶ms->int_entry.msi_entry, msi_desc); > > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ > > cc1: some warnings being treated as errors > > 18146f25ac66 ("PCI: hv: Remove unused hv_set_msi_entry_from_desc()") > does not have d06957d7a692 ("PCI: hv: Avoid the retarget interrupt > hypercall in irq_unmask() on ARM64") as a parent, since it is only in > mainline with no tag, whereas 18146f25ac66 is based on v5.17-rc7, which > does not have the problem that 18146f25ac66 addresses. > > I think that rebasing the pending fixes on the 5.18 PCI changes would > properly resolve this. Yep, sorry, I blew it. I rebased my for-linus branch to 148a65047695 ("Merge tag 'pci-v5.18-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci"), which does have d06957d7a692, and added this fix (PCI: hv: Remove unused hv_set_msi_entry_from_desc()).