Re: [PATCH net-next] net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)

From: kernel test robot
Date: Tue Apr 06 2021 - 21:53:45 EST


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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