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Date: Mon, 18 Apr 2022 03:12:16 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [kees:for-next/randstruct 5/5]
arch/x86/include/asm/cpufeature.h:194:54: error: no member named
'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/randstruct
head: 0f9614862c554c424c7b099d2cf84a3ecd755357
commit: 0f9614862c554c424c7b099d2cf84a3ecd755357 [5/5] randstruct: Enable Clang support
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20220418/202204180303.a8GY7xNF-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ef94609d6ebe981767788e6877b0b3b731d425af)
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://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=0f9614862c554c424c7b099d2cf84a3ecd755357
git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
git fetch --no-tags kees for-next/randstruct
git checkout 0f9614862c554c424c7b099d2cf84a3ecd755357
# 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 prepare
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
In file included from arch/x86/kernel/asm-offsets.c:9:
In file included from include/linux/crypto.h:20:
In file included from include/linux/slab.h:15:
In file included from include/linux/gfp.h:6:
In file included from include/linux/mmzone.h:8:
In file included from include/linux/spinlock.h:55:
In file included from include/linux/preempt.h:78:
In file included from arch/x86/include/asm/preempt.h:7:
In file included from include/linux/thread_info.h:60:
In file included from arch/x86/include/asm/thread_info.h:53:
>> arch/x86/include/asm/cpufeature.h:194:54: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
[cap_byte] "i" (&((const char *)boot_cpu_data.x86_capability)[bit >> 3])
^~~~~~~~~~~~~~
vmx_capability
include/linux/compiler_types.h:283:42: note: expanded from macro 'asm_volatile_goto'
#define asm_volatile_goto(x...) asm goto(x)
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:97:25: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set->sig[3] | set->sig[2] |
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:113:27: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
return (set1->sig[3] == set2->sig[3]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:5: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
(set1->sig[2] == set2->sig[2]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:21: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
(set1->sig[2] == set2->sig[2]) &&
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
--
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:186:1: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
_SIG_SET_OP(signotset, _sig_not)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:173:27: note: expanded from macro '_SIG_SET_OP'
case 4: set->sig[3] = op(set->sig[3]); \
^ ~
include/linux/signal.h:185:24: note: expanded from macro '_sig_not'
#define _sig_not(x) (~(x))
^
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:186:1: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds]
_SIG_SET_OP(signotset, _sig_not)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:173:10: note: expanded from macro '_SIG_SET_OP'
case 4: set->sig[3] = op(set->sig[3]); \
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:186:1: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
_SIG_SET_OP(signotset, _sig_not)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:174:20: note: expanded from macro '_SIG_SET_OP'
set->sig[2] = op(set->sig[2]); \
^ ~
include/linux/signal.h:185:24: note: expanded from macro '_sig_not'
#define _sig_not(x) (~(x))
^
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:186:1: warning: array index 2 is past the end of the array (which contains 2 elements) [-Warray-bounds]
_SIG_SET_OP(signotset, _sig_not)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/signal.h:174:3: note: expanded from macro '_SIG_SET_OP'
set->sig[2] = op(set->sig[2]); \
^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
unsigned long sig[_NSIG_WORDS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:10:
include/linux/cred.h:254:17: error: no member named 'non_rcu' in 'struct cred'
nonconst_cred->non_rcu = 0;
~~~~~~~~~~~~~ ^
include/linux/cred.h:266:17: error: no member named 'non_rcu' in 'struct cred'
nonconst_cred->non_rcu = 0;
~~~~~~~~~~~~~ ^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:17:
include/linux/fs.h:2896:17: error: no member named 'i_nlink' in 'struct inode'
return !inode->i_nlink || inode_unhashed(inode);
~~~~~ ^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
>> arch/x86/include/asm/pkru.h:37:6: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:204:23: note: expanded from macro 'static_cpu_has'
__builtin_constant_p(boot_cpu_has(bit)) ? \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
>> arch/x86/include/asm/pkru.h:37:6: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:205:3: note: expanded from macro 'static_cpu_has'
boot_cpu_has(bit) : \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
arch/x86/include/asm/pkru.h:44:7: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:204:23: note: expanded from macro 'static_cpu_has'
__builtin_constant_p(boot_cpu_has(bit)) ? \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
arch/x86/include/asm/pkru.h:44:7: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:205:3: note: expanded from macro 'static_cpu_has'
boot_cpu_has(bit) : \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
arch/x86/include/asm/pkru.h:56:7: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:204:23: note: expanded from macro 'static_cpu_has'
__builtin_constant_p(boot_cpu_has(bit)) ? \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
In file included from arch/x86/include/asm/pgtable.h:21:
arch/x86/include/asm/pkru.h:56:7: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
^
arch/x86/include/asm/cpufeature.h:139:65: note: expanded from macro 'cpu_feature_enabled'
(__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
^
arch/x86/include/asm/cpufeature.h:205:3: note: expanded from macro 'static_cpu_has'
boot_cpu_has(bit) : \
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
>> arch/x86/include/asm/pgtable.h:249:9: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
return boot_cpu_has(X86_FEATURE_PSE);
^
arch/x86/include/asm/cpufeature.h:141:27: note: expanded from macro 'boot_cpu_has'
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:13:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:29:
In file included from include/linux/pgtable.h:6:
arch/x86/include/asm/pgtable.h:1424:9: error: no member named 'x86_capability' in 'struct cpuinfo_x86'; did you mean 'vmx_capability'?
return boot_cpu_has_bug(X86_BUG_L1TF);
^
arch/x86/include/asm/cpufeature.h:215:32: note: expanded from macro 'boot_cpu_has_bug'
#define boot_cpu_has_bug(bit) cpu_has_bug(&boot_cpu_data, (bit))
^
arch/x86/include/asm/cpufeature.h:210:30: note: expanded from macro 'cpu_has_bug'
#define cpu_has_bug(c, bit) cpu_has(c, (bit))
^
arch/x86/include/asm/cpufeature.h:123:3: note: expanded from macro 'cpu_has'
test_cpu_cap(c, bit))
^
arch/x86/include/asm/cpufeature.h:54:40: note: expanded from macro 'test_cpu_cap'
test_bit(bit, (unsigned long *)((c)->x86_capability))
^
arch/x86/include/asm/processor.h:91:10: note: 'vmx_capability' declared here
__u32 vmx_capability[NVMXINTS];
^
In file included from arch/x86/kernel/asm-offsets.c:27:
>> arch/x86/kernel/asm-offsets_32.c:20:2: error: no member named 'x86_capability' in 'cpuinfo_x86'
OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
^ ~~~~~~~~~~~~~~
include/linux/kbuild.h:11:14: note: expanded from macro 'OFFSET'
DEFINE(sym, offsetof(struct str, mem))
^ ~~~
include/linux/stddef.h:16:32: note: expanded from macro 'offsetof'
#define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
^ ~~~~~~
include/linux/kbuild.h:6:62: note: expanded from macro 'DEFINE'
asm volatile("\n.ascii \"->" #sym " %0 " #val "\"" : : "i" (val))
^~~
28 warnings and 13 errors generated.
make[2]: *** [scripts/Makefile.build:120: arch/x86/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1195: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:219: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +194 arch/x86/include/asm/cpufeature.h
b1ae32dbab50ed Alexei Starovoitov 2018-05-13 168
a3c8acd04376d6 H. Peter Anvin 2010-05-11 169 /*
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 170 * Static testing of CPU features. Used the same as boot_cpu_has(). It
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 171 * statically patches the target code for additional performance. Use
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 172 * static_cpu_has() only in fast paths, where every cycle counts. Which
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 173 * means that the boot_cpu_has() variant is already fast enough for the
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 174 * majority of cases and you should stick to using it as it is generally
bfdd5a67c8cb02 Borislav Petkov 2019-03-29 175 * only two instructions: a RIP-relative MOV and a TEST.
0507503671f9b1 H. Peter Anvin 2021-09-10 176 *
0507503671f9b1 H. Peter Anvin 2021-09-10 177 * Do not use an "m" constraint for [cap_byte] here: gcc doesn't know
0507503671f9b1 H. Peter Anvin 2021-09-10 178 * that this is only used on a fallback path and will sometimes cause
0507503671f9b1 H. Peter Anvin 2021-09-10 179 * it to manifest the address of boot_cpu_data in a register, fouling
0507503671f9b1 H. Peter Anvin 2021-09-10 180 * the mainline (post-initialization) code.
a3c8acd04376d6 H. Peter Anvin 2010-05-11 181 */
ae37a8cd9b0ad3 Borislav Petkov 2019-03-07 182 static __always_inline bool _static_cpu_has(u16 bit)
4a90a99c4f8002 Borislav Petkov 2013-06-09 183 {
2fe2a2c7a97c9b Juergen Gross 2021-03-11 184 asm_volatile_goto(
2fe2a2c7a97c9b Juergen Gross 2021-03-11 185 ALTERNATIVE_TERNARY("jmp 6f", %P[feature], "", "jmp %l[t_no]")
0507503671f9b1 H. Peter Anvin 2021-09-10 186 ".pushsection .altinstr_aux,\"ax\"\n"
c3462ba9868372 Ingo Molnar 2018-12-19 187 "6:\n"
0507503671f9b1 H. Peter Anvin 2021-09-10 188 " testb %[bitnum]," _ASM_RIP(%P[cap_byte]) "\n"
c3462ba9868372 Ingo Molnar 2018-12-19 189 " jnz %l[t_yes]\n"
c3462ba9868372 Ingo Molnar 2018-12-19 190 " jmp %l[t_no]\n"
0507503671f9b1 H. Peter Anvin 2021-09-10 191 ".popsection\n"
3197b04bb39b59 Peter Zijlstra 2018-01-16 192 : : [feature] "i" (bit),
2476f2fa20568b Brian Gerst 2016-01-27 193 [bitnum] "i" (1 << (bit & 7)),
0507503671f9b1 H. Peter Anvin 2021-09-10 @194 [cap_byte] "i" (&((const char *)boot_cpu_data.x86_capability)[bit >> 3])
2476f2fa20568b Brian Gerst 2016-01-27 195 : : t_yes, t_no);
2476f2fa20568b Brian Gerst 2016-01-27 196 t_yes:
4a90a99c4f8002 Borislav Petkov 2013-06-09 197 return true;
4a90a99c4f8002 Borislav Petkov 2013-06-09 198 t_no:
4a90a99c4f8002 Borislav Petkov 2013-06-09 199 return false;
4a90a99c4f8002 Borislav Petkov 2013-06-09 200 }
4a90a99c4f8002 Borislav Petkov 2013-06-09 201
:::::: The code at line 194 was first introduced by commit
:::::: 0507503671f9b1c867e889cbec0f43abf904f23c x86/asm: Avoid adding register pressure for the init case in static_cpu_has()
:::::: TO: H. Peter Anvin <hpa@...or.com>
:::::: CC: Borislav Petkov <bp@...e.de>
--
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