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* [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.
@ 2022-08-18 10:48 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2022-08-16 21:16 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 2755 bytes --]

BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chao Peng <chao.p.peng@linux.intel.com>
CC: Isaku Yamahata <isaku.yamahata@intel.com>

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   85c097fdd1667a842a9e75d8f658fc16bd72981a
commit: a3b11dafa9058bdecc235b9c02aaae2d6b39c24d [150/308] KVM: Update lpage info when private/shared memory are mixed
:::::: branch date: 12 hours ago
:::::: commit date: 12 hours ago
config: x86_64-randconfig-m001-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170542.XpJ3DGlU-lkp(a)intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0

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

smatch warnings:
arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.

vim +/entry +7276 arch/x86/kvm/mmu/mmu.c

a3b11dafa9058b Chao Peng 2022-07-20  7264  
a3b11dafa9058b Chao Peng 2022-07-20  7265  static bool __mem_attr_is_mixed(struct kvm *kvm, gfn_t start, gfn_t end)
a3b11dafa9058b Chao Peng 2022-07-20  7266  {
a3b11dafa9058b Chao Peng 2022-07-20  7267  	XA_STATE(xas, &kvm->mem_attr_array, start);
a3b11dafa9058b Chao Peng 2022-07-20  7268  	bool mixed = false;
a3b11dafa9058b Chao Peng 2022-07-20  7269  	gfn_t gfn = start;
a3b11dafa9058b Chao Peng 2022-07-20  7270  	void *s_entry;
a3b11dafa9058b Chao Peng 2022-07-20  7271  	void *entry;
a3b11dafa9058b Chao Peng 2022-07-20  7272  
a3b11dafa9058b Chao Peng 2022-07-20  7273  	rcu_read_lock();
a3b11dafa9058b Chao Peng 2022-07-20  7274  	s_entry = xas_load(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7275  	while (gfn < end) {
a3b11dafa9058b Chao Peng 2022-07-20 @7276  		if (xas_retry(&xas, entry))
a3b11dafa9058b Chao Peng 2022-07-20  7277  			continue;
a3b11dafa9058b Chao Peng 2022-07-20  7278  
a3b11dafa9058b Chao Peng 2022-07-20  7279  		KVM_BUG_ON(gfn != xas.xa_index, kvm);
a3b11dafa9058b Chao Peng 2022-07-20  7280  
a3b11dafa9058b Chao Peng 2022-07-20  7281  		entry = xas_next(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7282  		if (entry != s_entry) {
a3b11dafa9058b Chao Peng 2022-07-20  7283  			mixed = true;
a3b11dafa9058b Chao Peng 2022-07-20  7284  			break;
a3b11dafa9058b Chao Peng 2022-07-20  7285  		}
a3b11dafa9058b Chao Peng 2022-07-20  7286  		gfn++;
a3b11dafa9058b Chao Peng 2022-07-20  7287  	}
a3b11dafa9058b Chao Peng 2022-07-20  7288  	rcu_read_unlock();
a3b11dafa9058b Chao Peng 2022-07-20  7289  	return mixed;
a3b11dafa9058b Chao Peng 2022-07-20  7290  }
a3b11dafa9058b Chao Peng 2022-07-20  7291  

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.
@ 2022-08-18 10:48 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2022-08-18 10:48 UTC (permalink / raw)
  To: kbuild, Chao Peng; +Cc: lkp, kbuild-all, linux-kernel, Isaku Yamahata

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   85c097fdd1667a842a9e75d8f658fc16bd72981a
commit: a3b11dafa9058bdecc235b9c02aaae2d6b39c24d [150/308] KVM: Update lpage info when private/shared memory are mixed
config: x86_64-randconfig-m001-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170542.XpJ3DGlU-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0

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

smatch warnings:
arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.

vim +/entry +7276 arch/x86/kvm/mmu/mmu.c

a3b11dafa9058b Chao Peng 2022-07-20  7265  static bool __mem_attr_is_mixed(struct kvm *kvm, gfn_t start, gfn_t end)
a3b11dafa9058b Chao Peng 2022-07-20  7266  {
a3b11dafa9058b Chao Peng 2022-07-20  7267  	XA_STATE(xas, &kvm->mem_attr_array, start);
a3b11dafa9058b Chao Peng 2022-07-20  7268  	bool mixed = false;
a3b11dafa9058b Chao Peng 2022-07-20  7269  	gfn_t gfn = start;
a3b11dafa9058b Chao Peng 2022-07-20  7270  	void *s_entry;
a3b11dafa9058b Chao Peng 2022-07-20  7271  	void *entry;
a3b11dafa9058b Chao Peng 2022-07-20  7272  
a3b11dafa9058b Chao Peng 2022-07-20  7273  	rcu_read_lock();
a3b11dafa9058b Chao Peng 2022-07-20  7274  	s_entry = xas_load(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7275  	while (gfn < end) {
a3b11dafa9058b Chao Peng 2022-07-20 @7276  		if (xas_retry(&xas, entry))
                                                                            ^^^^^
Uninitialized

a3b11dafa9058b Chao Peng 2022-07-20  7277  			continue;
a3b11dafa9058b Chao Peng 2022-07-20  7278  
a3b11dafa9058b Chao Peng 2022-07-20  7279  		KVM_BUG_ON(gfn != xas.xa_index, kvm);
a3b11dafa9058b Chao Peng 2022-07-20  7280  
a3b11dafa9058b Chao Peng 2022-07-20  7281  		entry = xas_next(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7282  		if (entry != s_entry) {
a3b11dafa9058b Chao Peng 2022-07-20  7283  			mixed = true;
a3b11dafa9058b Chao Peng 2022-07-20  7284  			break;
a3b11dafa9058b Chao Peng 2022-07-20  7285  		}
a3b11dafa9058b Chao Peng 2022-07-20  7286  		gfn++;
a3b11dafa9058b Chao Peng 2022-07-20  7287  	}
a3b11dafa9058b Chao Peng 2022-07-20  7288  	rcu_read_unlock();
a3b11dafa9058b Chao Peng 2022-07-20  7289  	return mixed;
a3b11dafa9058b Chao Peng 2022-07-20  7290  }

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


^ permalink raw reply	[flat|nested] 4+ messages in thread
* [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.
@ 2022-08-18 10:48 ` Dan Carpenter
  0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2022-08-18 10:48 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 2516 bytes --]

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   85c097fdd1667a842a9e75d8f658fc16bd72981a
commit: a3b11dafa9058bdecc235b9c02aaae2d6b39c24d [150/308] KVM: Update lpage info when private/shared memory are mixed
config: x86_64-randconfig-m001-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170542.XpJ3DGlU-lkp(a)intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0

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

smatch warnings:
arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.

vim +/entry +7276 arch/x86/kvm/mmu/mmu.c

a3b11dafa9058b Chao Peng 2022-07-20  7265  static bool __mem_attr_is_mixed(struct kvm *kvm, gfn_t start, gfn_t end)
a3b11dafa9058b Chao Peng 2022-07-20  7266  {
a3b11dafa9058b Chao Peng 2022-07-20  7267  	XA_STATE(xas, &kvm->mem_attr_array, start);
a3b11dafa9058b Chao Peng 2022-07-20  7268  	bool mixed = false;
a3b11dafa9058b Chao Peng 2022-07-20  7269  	gfn_t gfn = start;
a3b11dafa9058b Chao Peng 2022-07-20  7270  	void *s_entry;
a3b11dafa9058b Chao Peng 2022-07-20  7271  	void *entry;
a3b11dafa9058b Chao Peng 2022-07-20  7272  
a3b11dafa9058b Chao Peng 2022-07-20  7273  	rcu_read_lock();
a3b11dafa9058b Chao Peng 2022-07-20  7274  	s_entry = xas_load(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7275  	while (gfn < end) {
a3b11dafa9058b Chao Peng 2022-07-20 @7276  		if (xas_retry(&xas, entry))
                                                                            ^^^^^
Uninitialized

a3b11dafa9058b Chao Peng 2022-07-20  7277  			continue;
a3b11dafa9058b Chao Peng 2022-07-20  7278  
a3b11dafa9058b Chao Peng 2022-07-20  7279  		KVM_BUG_ON(gfn != xas.xa_index, kvm);
a3b11dafa9058b Chao Peng 2022-07-20  7280  
a3b11dafa9058b Chao Peng 2022-07-20  7281  		entry = xas_next(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7282  		if (entry != s_entry) {
a3b11dafa9058b Chao Peng 2022-07-20  7283  			mixed = true;
a3b11dafa9058b Chao Peng 2022-07-20  7284  			break;
a3b11dafa9058b Chao Peng 2022-07-20  7285  		}
a3b11dafa9058b Chao Peng 2022-07-20  7286  		gfn++;
a3b11dafa9058b Chao Peng 2022-07-20  7287  	}
a3b11dafa9058b Chao Peng 2022-07-20  7288  	rcu_read_unlock();
a3b11dafa9058b Chao Peng 2022-07-20  7289  	return mixed;
a3b11dafa9058b Chao Peng 2022-07-20  7290  }

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
* [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.
@ 2022-08-16 22:48 kernel test robot
  0 siblings, 0 replies; 4+ messages in thread
From: kernel test robot @ 2022-08-16 22:48 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 2755 bytes --]

BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Chao Peng <chao.p.peng@linux.intel.com>
CC: Isaku Yamahata <isaku.yamahata@intel.com>

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   85c097fdd1667a842a9e75d8f658fc16bd72981a
commit: a3b11dafa9058bdecc235b9c02aaae2d6b39c24d [150/308] KVM: Update lpage info when private/shared memory are mixed
:::::: branch date: 13 hours ago
:::::: commit date: 13 hours ago
config: x86_64-randconfig-m001-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170645.o8etfqlG-lkp(a)intel.com/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0

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

smatch warnings:
arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry'.

vim +/entry +7276 arch/x86/kvm/mmu/mmu.c

a3b11dafa9058b Chao Peng 2022-07-20  7264  
a3b11dafa9058b Chao Peng 2022-07-20  7265  static bool __mem_attr_is_mixed(struct kvm *kvm, gfn_t start, gfn_t end)
a3b11dafa9058b Chao Peng 2022-07-20  7266  {
a3b11dafa9058b Chao Peng 2022-07-20  7267  	XA_STATE(xas, &kvm->mem_attr_array, start);
a3b11dafa9058b Chao Peng 2022-07-20  7268  	bool mixed = false;
a3b11dafa9058b Chao Peng 2022-07-20  7269  	gfn_t gfn = start;
a3b11dafa9058b Chao Peng 2022-07-20  7270  	void *s_entry;
a3b11dafa9058b Chao Peng 2022-07-20  7271  	void *entry;
a3b11dafa9058b Chao Peng 2022-07-20  7272  
a3b11dafa9058b Chao Peng 2022-07-20  7273  	rcu_read_lock();
a3b11dafa9058b Chao Peng 2022-07-20  7274  	s_entry = xas_load(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7275  	while (gfn < end) {
a3b11dafa9058b Chao Peng 2022-07-20 @7276  		if (xas_retry(&xas, entry))
a3b11dafa9058b Chao Peng 2022-07-20  7277  			continue;
a3b11dafa9058b Chao Peng 2022-07-20  7278  
a3b11dafa9058b Chao Peng 2022-07-20  7279  		KVM_BUG_ON(gfn != xas.xa_index, kvm);
a3b11dafa9058b Chao Peng 2022-07-20  7280  
a3b11dafa9058b Chao Peng 2022-07-20  7281  		entry = xas_next(&xas);
a3b11dafa9058b Chao Peng 2022-07-20  7282  		if (entry != s_entry) {
a3b11dafa9058b Chao Peng 2022-07-20  7283  			mixed = true;
a3b11dafa9058b Chao Peng 2022-07-20  7284  			break;
a3b11dafa9058b Chao Peng 2022-07-20  7285  		}
a3b11dafa9058b Chao Peng 2022-07-20  7286  		gfn++;
a3b11dafa9058b Chao Peng 2022-07-20  7287  	}
a3b11dafa9058b Chao Peng 2022-07-20  7288  	rcu_read_unlock();
a3b11dafa9058b Chao Peng 2022-07-20  7289  	return mixed;
a3b11dafa9058b Chao Peng 2022-07-20  7290  }
a3b11dafa9058b Chao Peng 2022-07-20  7291  

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

^ permalink raw reply	[flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-08-18 10:49 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-08-16 21:16 [intel-tdx:kvm-upstream-workaround 150/308] arch/x86/kvm/mmu/mmu.c:7276 __mem_attr_is_mixed() error: uninitialized symbol 'entry' kernel test robot
2022-08-18 10:48 ` Dan Carpenter
2022-08-18 10:48 ` Dan Carpenter
2022-08-16 22:48 kernel test robot

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