arch/x86/kvm/mmu/page_track.c:95:39-45: ERROR: application of sizeof to pointer

arch/x86/kvm/mmu/page_track.c:95:39-45: ERROR: application of sizeof to pointer

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 798 bytes --]

tree:   https://github.com/0day-ci/linux/commits/David-Stevens/KVM-x86-skip-gfn_track-allocation-when-possible/20210922-134429
head:   e8c58ba667b80c8c238fb54320c7f774c631dfd5
commit: e8c58ba667b80c8c238fb54320c7f774c631dfd5 KVM: x86: only allocate gfn_track when necessary
date:   8 weeks ago
config: i386-randconfig-c024-20210928 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

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


cocci warnings: (new ones prefixed by >>)
>> arch/x86/kvm/mmu/page_track.c:95:39-45: ERROR: application of sizeof to pointer

Please review and possibly fold the followup patch.

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

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 40739 bytes --]

[PATCH] KVM: x86: fix noderef.cocci warnings

[kernel test robot]

From: kernel test robot <lkp@intel.com>

arch/x86/kvm/mmu/page_track.c:95:39-45: ERROR: application of sizeof to pointer

 sizeof when applied to a pointer typed expression gives the size of
 the pointer

Generated by: scripts/coccinelle/misc/noderef.cocci

CC: David Stevens <stevensd@chromium.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://github.com/0day-ci/linux/commits/David-Stevens/KVM-x86-skip-gfn_track-allocation-when-possible/20210922-134429
head:   e8c58ba667b80c8c238fb54320c7f774c631dfd5
commit: e8c58ba667b80c8c238fb54320c7f774c631dfd5 KVM: x86: only allocate gfn_track when necessary
:::::: branch date: 8 weeks ago
:::::: commit date: 8 weeks ago

 page_track.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/x86/kvm/mmu/page_track.c
+++ b/arch/x86/kvm/mmu/page_track.c
@@ -92,7 +92,8 @@ int kvm_page_track_enable_mmu_write_trac
 		slots = __kvm_memslots(kvm, i);
 		kvm_for_each_memslot(slot, slots) {
 			gfn_track = slot->arch.gfn_track + KVM_PAGE_TRACK_WRITE;
-			*gfn_track = kvcalloc(slot->npages, sizeof(*gfn_track),
+			*gfn_track = kvcalloc(slot->npages,
+					      sizeof(**gfn_track),
 					      GFP_KERNEL_ACCOUNT);
 			if (*gfn_track == NULL) {
 				mutex_unlock(&kvm->slots_arch_lock);