[intel-tdx:kvm-upstream-workaround 149/296] arch/x86/kvm/vmx/main.c:175:51: error: invalid application of 'sizeof' to an incomplete type 'struct kvm_tdx'
From: kernel test robot
Date: Tue Mar 15 2022 - 03:38:09 EST
tree: https://github.com/intel/tdx.git kvm-upstream-workaround
head: 97612c5f3be3447870b5d6fd476931a4c5ff280f
commit: 540e161d6f1b1e4ca7535ef11258660947ae7b00 [149/296] KVM: TDX: Add placeholders for TDX VM/vcpu structure
config: i386-randconfig-a011 (https://download.01.org/0day-ci/archive/20220315/202203151531.zATdFM5Y-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6b2f50fb47da3baeee10b1906da6e30ac5d26ec)
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
# https://github.com/intel/tdx/commit/540e161d6f1b1e4ca7535ef11258660947ae7b00
git remote add intel-tdx https://github.com/intel/tdx.git
git fetch --no-tags intel-tdx kvm-upstream-workaround
git checkout 540e161d6f1b1e4ca7535ef11258660947ae7b00
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kvm/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
>> arch/x86/kvm/vmx/main.c:175:51: error: invalid application of 'sizeof' to an incomplete type 'struct kvm_tdx'
vt_x86_ops.vm_size = max(sizeof(struct kvm_vmx), sizeof(struct kvm_tdx));
^ ~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:19: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:20:39: note: expanded from macro '__typecheck'
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
^
arch/x86/kvm/vmx/tdx.h:38:8: note: forward declaration of 'struct kvm_tdx'
struct kvm_tdx;
^
>> arch/x86/kvm/vmx/main.c:175:51: error: invalid application of 'sizeof' to an incomplete type 'struct kvm_tdx'
vt_x86_ops.vm_size = max(sizeof(struct kvm_vmx), sizeof(struct kvm_tdx));
^ ~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:46: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:23:40: note: expanded from macro '__no_side_effects'
(__is_constexpr(x) && __is_constexpr(y))
^
include/linux/const.h:12:48: note: expanded from macro '__is_constexpr'
(sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
^
arch/x86/kvm/vmx/tdx.h:38:8: note: forward declaration of 'struct kvm_tdx'
struct kvm_tdx;
^
>> arch/x86/kvm/vmx/main.c:176:43: error: invalid application of 'sizeof' to an incomplete type 'struct vcpu_tdx'
vcpu_size = max(sizeof(struct vcpu_vmx), sizeof(struct vcpu_tdx));
^ ~~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:19: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:20:39: note: expanded from macro '__typecheck'
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
^
arch/x86/kvm/vmx/tdx.h:39:8: note: forward declaration of 'struct vcpu_tdx'
struct vcpu_tdx;
^
>> arch/x86/kvm/vmx/main.c:176:43: error: invalid application of 'sizeof' to an incomplete type 'struct vcpu_tdx'
vcpu_size = max(sizeof(struct vcpu_vmx), sizeof(struct vcpu_tdx));
^ ~~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:46: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:23:40: note: expanded from macro '__no_side_effects'
(__is_constexpr(x) && __is_constexpr(y))
^
include/linux/const.h:12:48: note: expanded from macro '__is_constexpr'
(sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
^
arch/x86/kvm/vmx/tdx.h:39:8: note: forward declaration of 'struct vcpu_tdx'
struct vcpu_tdx;
^
>> arch/x86/kvm/vmx/main.c:178:4: error: invalid application of '__alignof' to an incomplete type 'struct vcpu_tdx'
__alignof__(struct vcpu_tdx));
^ ~~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:19: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:20:39: note: expanded from macro '__typecheck'
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
^
arch/x86/kvm/vmx/tdx.h:39:8: note: forward declaration of 'struct vcpu_tdx'
struct vcpu_tdx;
^
>> arch/x86/kvm/vmx/main.c:178:4: error: invalid application of '__alignof' to an incomplete type 'struct vcpu_tdx'
__alignof__(struct vcpu_tdx));
^ ~~~~~~~~~~~~~~~~~
include/linux/minmax.h:52:36: note: expanded from macro 'max'
#define max(x, y) __careful_cmp(x, y, >)
^
include/linux/minmax.h:36:38: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^
include/linux/minmax.h:26:46: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^
include/linux/minmax.h:23:40: note: expanded from macro '__no_side_effects'
(__is_constexpr(x) && __is_constexpr(y))
^
include/linux/const.h:12:48: note: expanded from macro '__is_constexpr'
(sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
^
arch/x86/kvm/vmx/tdx.h:39:8: note: forward declaration of 'struct vcpu_tdx'
struct vcpu_tdx;
^
6 errors generated.
vim +175 arch/x86/kvm/vmx/main.c
169
170 static int __init vt_init(void)
171 {
172 unsigned int vcpu_size, vcpu_align;
173 int r;
174
> 175 vt_x86_ops.vm_size = max(sizeof(struct kvm_vmx), sizeof(struct kvm_tdx));
> 176 vcpu_size = max(sizeof(struct vcpu_vmx), sizeof(struct vcpu_tdx));
177 vcpu_align = max(__alignof__(struct vcpu_vmx),
> 178 __alignof__(struct vcpu_tdx));
179
180 hv_vp_assist_page_init();
181
182 r = kvm_init(&vt_init_ops, vcpu_size, vcpu_align, THIS_MODULE);
183 if (r)
184 goto err_vmx_post_exit;
185
186 r = vmx_init();
187 if (r)
188 goto err_kvm_exit;
189
190 return 0;
191
192 err_kvm_exit:
193 kvm_exit();
194 err_vmx_post_exit:
195 hv_vp_assist_page_exit();
196 return r;
197 }
198 module_init(vt_init);
199
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