arch/arm64/kvm/arm.c:1288:37: sparse: expected void

[kernel test robot <lkp@intel.com>]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: David Brazdil <dbrazdil@google.com>
CC: Marc Zyngier <maz@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dcc5c6f013d841e9ae74d527d312d512dfc2e2f0
commit: 71b3ec5f221b8b3ff545639be83ddfcd5d7c9800 KVM: arm64: Clean up cpu_init_hyp_mode()
date:   3 months ago
:::::: branch date: 3 hours ago
:::::: commit date: 3 months ago
config: arm64-randconfig-s031-20200831 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.2-191-g10164920-dirty
        git checkout 71b3ec5f221b8b3ff545639be83ddfcd5d7c9800
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64 

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


sparse warnings: (new ones prefixed by >>)

   arch/arm64/kvm/arm.c:1288:37: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void *val @@     got struct kvm_host_data [noderef] <asn:3> * @@
>> arch/arm64/kvm/arm.c:1288:37: sparse:     expected void *val
   arch/arm64/kvm/arm.c:1288:37: sparse:     got struct kvm_host_data [noderef] <asn:3> *

# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=71b3ec5f221b8b3ff545639be83ddfcd5d7c9800
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 71b3ec5f221b8b3ff545639be83ddfcd5d7c9800
vim +1288 arch/arm64/kvm/arm.c

749cf76c5a363e arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1271  
7e0befd521b6d4 virt/kvm/arm/arm.c   Miaohe Lin       2019-11-21  1272  static void cpu_init_hyp_mode(void)
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1273  {
dac288f7b38a74 arch/arm/kvm/arm.c   Marc Zyngier     2013-05-14  1274  	phys_addr_t pgd_ptr;
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1275  	unsigned long hyp_stack_ptr;
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1276  	unsigned long vector_ptr;
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1277  	unsigned long tpidr_el2;
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1278  
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1279  	/* Switch from the HYP stub to our own HYP init vector */
5a677ce044f18a arch/arm/kvm/arm.c   Marc Zyngier     2013-04-12  1280  	__hyp_set_vectors(kvm_get_idmap_vector());
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1281  
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1282  	/*
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1283  	 * Calculate the raw per-cpu offset without a translation from the
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1284  	 * kernel's mapping to the linear mapping, and store it in tpidr_el2
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1285  	 * so that we can use adr_l to access per-cpu variables in EL2.
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1286  	 */
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1287  	tpidr_el2 = ((unsigned long)this_cpu_ptr(&kvm_host_data) -
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15 @1288  		     (unsigned long)kvm_ksym_ref(kvm_host_data));
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1289  
dac288f7b38a74 arch/arm/kvm/arm.c   Marc Zyngier     2013-05-14  1290  	pgd_ptr = kvm_mmu_get_httbr();
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1291  	hyp_stack_ptr = __this_cpu_read(kvm_arm_hyp_stack_page) + PAGE_SIZE;
6840bdd73d0721 virt/kvm/arm/arm.c   Marc Zyngier     2018-01-03  1292  	vector_ptr = (unsigned long)kvm_get_hyp_vector();
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1293  
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1294  	/*
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1295  	 * Call initialization code, and switch to the full blown HYP code.
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1296  	 * If the cpucaps haven't been finalized yet, something has gone very
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1297  	 * wrong, and hyp will crash and burn when it uses any
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1298  	 * cpus_have_const_cap() wrapper.
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1299  	 */
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1300  	BUG_ON(!system_capabilities_finalized());
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1301  	__kvm_call_hyp((void *)pgd_ptr, hyp_stack_ptr, vector_ptr, tpidr_el2);
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1302  
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1303  	/*
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1304  	 * Disabling SSBD on a non-VHE system requires us to enable SSBS
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1305  	 * at EL2.
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1306  	 */
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1307  	if (this_cpu_has_cap(ARM64_SSBS) &&
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1308  	    arm64_get_ssbd_state() == ARM64_SSBD_FORCE_DISABLE) {
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1309  		kvm_call_hyp(__kvm_enable_ssbs);
71b3ec5f221b8b arch/arm64/kvm/arm.c David Brazdil    2020-05-15  1310  	}
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1311  }
342cd0ab0e6ca3 arch/arm/kvm/arm.c   Christoffer Dall 2013-01-20  1312  

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

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