[arm-platforms:irq/affinity-nosmp 7/8] drivers/pci/controller/pci-hyperv.c:1654:42: warning: passing argument 1 of 'hv_compose_msi_req_get_cpu' discards 'const' qualifier from pointer target type

[arm-platforms:irq/affinity-nosmp 7/8] drivers/pci/controller/pci-hyperv.c:1654:42: warning: passing argument 1 of 'hv_compose_msi_req_get_cpu' discards 'const' qualifier from pointer target type

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git irq/affinity-nosmp
head:   aa0813581b8d37bdd91cd40b67ef79ffa45104b2
commit: 4d0b8298818b623f5fa51d5c49e1a142d3618ac9 [7/8] genirq: Return a const cpumask from irq_data_get_affinity_mask
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220708/202207080943.Dm1V3kIf-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/commit/?id=4d0b8298818b623f5fa51d5c49e1a142d3618ac9
        git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git
        git fetch --no-tags arm-platforms irq/affinity-nosmp
        git checkout 4d0b8298818b623f5fa51d5c49e1a142d3618ac9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/pci/controller/ drivers/rtc/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   drivers/pci/controller/pci-hyperv.c: In function 'hv_compose_msi_req_v2':
>> drivers/pci/controller/pci-hyperv.c:1654:42: warning: passing argument 1 of 'hv_compose_msi_req_get_cpu' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    1654 |         cpu = hv_compose_msi_req_get_cpu(affinity);
         |                                          ^~~~~~~~
   drivers/pci/controller/pci-hyperv.c:1638:55: note: expected 'struct cpumask *' but argument is of type 'const struct cpumask *'
    1638 | static int hv_compose_msi_req_get_cpu(struct cpumask *affinity)
         |                                       ~~~~~~~~~~~~~~~~^~~~~~~~
   drivers/pci/controller/pci-hyperv.c: In function 'hv_compose_msi_req_v3':
   drivers/pci/controller/pci-hyperv.c:1674:42: warning: passing argument 1 of 'hv_compose_msi_req_get_cpu' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    1674 |         cpu = hv_compose_msi_req_get_cpu(affinity);
         |                                          ^~~~~~~~
   drivers/pci/controller/pci-hyperv.c:1638:55: note: expected 'struct cpumask *' but argument is of type 'const struct cpumask *'
    1638 | static int hv_compose_msi_req_get_cpu(struct cpumask *affinity)
         |                                       ~~~~~~~~~~~~~~~~^~~~~~~~


vim +1654 drivers/pci/controller/pci-hyperv.c

8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1642  
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1643  static u32 hv_compose_msi_req_v2(
4d0b8298818b623 drivers/pci/controller/pci-hyperv.c Samuel Holland   2022-07-01  1644  	struct pci_create_interrupt2 *int_pkt, const struct cpumask *affinity,
a2bad844a67b1c7 drivers/pci/controller/pci-hyperv.c Jeffrey Hugo     2022-05-11  1645  	u32 slot, u8 vector, u8 vector_count)
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1646  {
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1647  	int cpu;
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1648  
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1649  	int_pkt->message_type.type = PCI_CREATE_INTERRUPT_MESSAGE2;
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1650  	int_pkt->wslot.slot = slot;
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1651  	int_pkt->int_desc.vector = vector;
a2bad844a67b1c7 drivers/pci/controller/pci-hyperv.c Jeffrey Hugo     2022-05-11  1652  	int_pkt->int_desc.vector_count = vector_count;
831c1ae725f7d2f drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2022-01-05  1653  	int_pkt->int_desc.delivery_mode = DELIVERY_MODE;
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12 @1654  	cpu = hv_compose_msi_req_get_cpu(affinity);
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1655  	int_pkt->int_desc.processor_array[0] =
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1656  		hv_cpu_number_to_vp_number(cpu);
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1657  	int_pkt->int_desc.processor_count = 1;
7dcf90e9e032432 drivers/pci/host/pci-hyperv.c       Jork Loeser      2017-05-24  1658  
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1659  	return sizeof(*int_pkt);
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1660  }
8f6a6b3c50ce1ca drivers/pci/controller/pci-hyperv.c Sunil Muthuswamy 2021-07-12  1661  

:::::: The code at line 1654 was first introduced by commit
:::::: 8f6a6b3c50ce1caa81c47bb5855be02050c0eff7 PCI: hv: Support for create interrupt v3

:::::: TO: Sunil Muthuswamy <sunilmut@microsoft.com>
:::::: CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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