[hch-misc:hyperv-vmap 36/49] arch/x86/hyperv/ivm.c:77:33: warning: cast from pointer to integer of different size

[hch-misc:hyperv-vmap 36/49] arch/x86/hyperv/ivm.c:77:33: warning: cast from pointer to integer of different size

[kernel test robot]

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tree:   git://git.infradead.org/users/hch/misc.git hyperv-vmap
head:   8248f295928aded3364a1e54a4e0022e93d3610c
commit: 19f6fa718bdd3c12c872065df1f726372a413f65 [36/49] HV: Add ghcb hvcall support for SNP VM
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        git remote add hch-misc git://git.infradead.org/users/hch/misc.git
        git fetch --no-tags hch-misc hyperv-vmap
        git checkout 19f6fa718bdd3c12c872065df1f726372a413f65
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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

All warnings (new ones prefixed by >>):

   arch/x86/hyperv/ivm.c: In function 'hv_ghcb_hypercall':
>> arch/x86/hyperv/ivm.c:77:33: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      77 |  hv_ghcb->hypercall.outputgpa = (u64)output;
         |                                 ^
   arch/x86/hyperv/ivm.c: In function 'hv_ghcb_msr_write':
   arch/x86/hyperv/ivm.c:118:6: error: implicit declaration of function 'sev_es_ghcb_hv_call_simple' [-Werror=implicit-function-declaration]
     118 |  if (sev_es_ghcb_hv_call_simple(&hv_ghcb->ghcb, SVM_EXIT_MSR, 1, 0))
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for PHY_SPARX5_SERDES
   Depends on (ARCH_SPARX5 || COMPILE_TEST && OF && HAS_IOMEM
   Selected by
   - SPARX5_SWITCH && NETDEVICES && ETHERNET && NET_VENDOR_MICROCHIP && NET_SWITCHDEV && HAS_IOMEM


vim +77 arch/x86/hyperv/ivm.c

    54	
    55	u64 hv_ghcb_hypercall(u64 control, void *input, void *output, u32 input_size)
    56	{
    57		union hv_ghcb *hv_ghcb;
    58		void **ghcb_base;
    59		unsigned long flags;
    60	
    61		if (!hv_ghcb_pg)
    62			return -EFAULT;
    63	
    64		WARN_ON(in_nmi());
    65	
    66		local_irq_save(flags);
    67		ghcb_base = (void **)this_cpu_ptr(hv_ghcb_pg);
    68		hv_ghcb = (union hv_ghcb *)*ghcb_base;
    69		if (!hv_ghcb) {
    70			local_irq_restore(flags);
    71			return -EFAULT;
    72		}
    73	
    74		hv_ghcb->ghcb.protocol_version = GHCB_PROTOCOL_MAX;
    75		hv_ghcb->ghcb.ghcb_usage = GHCB_USAGE_HYPERV_CALL;
    76	
  > 77		hv_ghcb->hypercall.outputgpa = (u64)output;
    78		hv_ghcb->hypercall.hypercallinput.asuint64 = 0;
    79		hv_ghcb->hypercall.hypercallinput.callcode = control;
    80	
    81		if (input_size)
    82			memcpy(hv_ghcb->hypercall.hypercalldata, input, input_size);
    83	
    84		VMGEXIT();
    85	
    86		hv_ghcb->ghcb.ghcb_usage = 0xffffffff;
    87		memset(hv_ghcb->ghcb.save.valid_bitmap, 0,
    88		       sizeof(hv_ghcb->ghcb.save.valid_bitmap));
    89	
    90		local_irq_restore(flags);
    91	
    92		return hv_ghcb->hypercall.hypercalloutput.callstatus;
    93	}
    94	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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