Hi Dexuan, I love your patch! Yet something to improve: [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Dexuan-Cui/net-mana-Add-a-driver-for-Microsoft-Azure-Network-Adapter-MANA/20210407-072552 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git cc0626c2aaed8e475efdd85fa374b497a7192e35 config: powerpc-randconfig-r024-20210406 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c060945b23a1c54d4b2a053ff4b093a2277b303d) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/0day-ci/linux/commit/f086d8bc693c2686de24a81398e49496ab3747a9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dexuan-Cui/net-mana-Add-a-driver-for-Microsoft-Azure-Network-Adapter-MANA/20210407-072552 git checkout f086d8bc693c2686de24a81398e49496ab3747a9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): >> drivers/pci/controller/pci-hyperv.c:46:10: fatal error: 'asm/irqdomain.h' file not found #include <asm/irqdomain.h> ^~~~~~~~~~~~~~~~~ 1 error generated. -- >> drivers/net/ethernet/microsoft/mana/gdma_main.c:18:9: error: implicit declaration of function 'readq' [-Werror,-Wimplicit-function-declaration] return readq(g->bar0_va + offset); ^ >> drivers/net/ethernet/microsoft/mana/gdma_main.c:259:2: error: implicit declaration of function 'writeq' [-Werror,-Wimplicit-function-declaration] writeq(e.as_uint64, addr); ^ 2 errors generated. -- >> drivers/net/ethernet/microsoft/mana/hw_channel.c:60:6: warning: variable 'ctx' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] if (!test_bit(resp_msg->response.hwc_msg_id, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/microsoft/mana/hw_channel.c:77:2: note: uninitialized use occurs here ctx->error = err; ^~~ drivers/net/ethernet/microsoft/mana/hw_channel.c:60:2: note: remove the 'if' if its condition is always false if (!test_bit(resp_msg->response.hwc_msg_id, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/microsoft/mana/hw_channel.c:57:28: note: initialize the variable 'ctx' to silence this warning struct hwc_caller_ctx *ctx; ^ = NULL 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PCI_HYPERV Depends on PCI && X86_64 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && SYSFS Selected by - MICROSOFT_MANA && NETDEVICES && ETHERNET && NET_VENDOR_MICROSOFT && PCI_MSI vim +46 drivers/pci/controller/pci-hyperv.c 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 @46 #include <asm/irqdomain.h> 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 47 #include <asm/apic.h> 447ae316670230 drivers/pci/controller/pci-hyperv.c Nicolai Stange 2018-07-29 48 #include <linux/irq.h> 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 49 #include <linux/msi.h> 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 50 #include <linux/hyperv.h> 24196f0c7d4bba drivers/pci/host/pci-hyperv.c Elena Reshetova 2017-04-18 51 #include <linux/refcount.h> 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 52 #include <asm/mshyperv.h> 4daace0d8ce851 drivers/pci/host/pci-hyperv.c Jake Oshins 2016-02-16 53 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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