From: kernel test robot <lkp@intel.com>
To: Sean Christopherson <seanjc@google.com>
Cc: oe-kbuild-all@lists.linux.dev, Mark Brown <broonie@kernel.org>
Subject: [linux-next:master 11457/11516] arch/x86/kvm/emulate.c:3993:49: error: initialization of 'unsigned char' from 'int (*)(struct x86_emulate_ctxt *)' makes integer from pointer without a cast
Date: Mon, 22 Sep 2025 21:32:49 +0800 [thread overview]
Message-ID: <202509222120.gYT1wiPR-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: bf2602a3cb2381fb1a04bf1c39a290518d2538d1
commit: 73ae7b15769883f22b199e1c6c67f7597e262fff [11457/11516] Merge branch 'next' of https://github.com/kvm-x86/linux.git
config: i386-buildonly-randconfig-003-20250922 (https://download.01.org/0day-ci/archive/20250922/202509222120.gYT1wiPR-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250922/202509222120.gYT1wiPR-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509222120.gYT1wiPR-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/x86/kvm/emulate.c:4091:9: error: implicit declaration of function 'F'; did you mean 'FS'? [-Wimplicit-function-declaration]
4091 | F(DstMem | SrcNone | Lock, em_inc),
| ^
| FS
arch/x86/kvm/emulate.c:4091:9: error: initializer element is not constant
arch/x86/kvm/emulate.c:4091:9: note: (near initialization for 'group5[0].flags')
arch/x86/kvm/emulate.c:4092:9: error: initializer element is not constant
4092 | F(DstMem | SrcNone | Lock, em_dec),
| ^
arch/x86/kvm/emulate.c:4092:9: note: (near initialization for 'group5[0].intercept')
arch/x86/kvm/emulate.c:3993:21: error: field name not in record or union initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:21: note: (near initialization for 'group5[0].pad')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:30: warning: conversion from 'long long unsigned int' to 'unsigned char' changes value from '220676381741154496' to '192' [-Woverflow]
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:36: error: field name not in record or union initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:36: note: (near initialization for 'group5[0].pad')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
>> arch/x86/kvm/emulate.c:3993:49: error: initialization of 'unsigned char' from 'int (*)(struct x86_emulate_ctxt *)' makes integer from pointer without a cast [-Wint-conversion]
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:49: note: (near initialization for 'group5[0].pad[1]')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:49: error: initializer element is not computable at load time
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:3993:49: note: (near initialization for 'group5[0].pad[1]')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4093:9: note: in expansion of macro 'I'
4093 | I(SrcMem | NearBranch | IsBranch | ShadowStack, em_call_near_abs),
| ^
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
4090 | static const struct opcode group5[] = {
| ^
4091 | F(DstMem | SrcNone | Lock, em_inc),
| {
arch/x86/kvm/emulate.c:3993:22: error: 'union <anonymous>' has no member named 'flags'
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^~~~~
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
>> arch/x86/kvm/emulate.c:3993:30: error: initialization of 'int (*)(struct x86_emulate_ctxt *)' from 'long long unsigned int' makes pointer from integer without a cast [-Wint-conversion]
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
arch/x86/kvm/emulate.c:3993:30: note: (near initialization for 'group5[0].u.execute')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
arch/x86/kvm/emulate.c:3993:37: error: 'union <anonymous>' has no member named 'u'
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
arch/x86/kvm/emulate.c:3993:49: warning: excess elements in union initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
arch/x86/kvm/emulate.c:3993:49: note: (near initialization for 'group5[0].u')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4094:9: note: in expansion of macro 'I'
4094 | I(SrcMemFAddr | ImplicitOps | IsBranch | ShadowStack, em_call_far),
| ^
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
4090 | static const struct opcode group5[] = {
| ^
4091 | F(DstMem | SrcNone | Lock, em_inc),
| {
arch/x86/kvm/emulate.c:4095:9: warning: braces around scalar initializer
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:4095:9: note: (near initialization for 'group5[0].check_perm')
arch/x86/kvm/emulate.c:3993:21: error: field name not in record or union initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:21: note: (near initialization for 'group5[0].check_perm')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
>> arch/x86/kvm/emulate.c:3993:30: error: initialization of 'int (*)(struct x86_emulate_ctxt *)' from 'long long unsigned int' makes pointer from integer without a cast [-Wint-conversion]
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:30: note: (near initialization for 'group5[0].check_perm')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:36: error: field name not in record or union initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:36: note: (near initialization for 'group5[0].check_perm')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:49: warning: excess elements in scalar initializer
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:3993:49: note: (near initialization for 'group5[0].check_perm')
3993 | #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
| ^
arch/x86/kvm/emulate.c:4095:9: note: in expansion of macro 'I'
4095 | I(SrcMem | NearBranch | IsBranch, em_jmp_abs),
| ^
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
4090 | static const struct opcode group5[] = {
| ^
4091 | F(DstMem | SrcNone | Lock, em_inc),
| {
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
arch/x86/kvm/emulate.c:4090:39: warning: missing braces around initializer [-Wmissing-braces]
vim +3993 arch/x86/kvm/emulate.c
f6511935f424b9 Joerg Roedel 2011-04-04 3981
73fba5f4fe3e08 Avi Kivity 2010-07-29 3982 #define D(_y) { .flags = (_y) }
d40a6898e50c25 Paolo Bonzini 2014-03-27 3983 #define DI(_y, _i) { .flags = (_y)|Intercept, .intercept = x86_intercept_##_i }
d40a6898e50c25 Paolo Bonzini 2014-03-27 3984 #define DIP(_y, _i, _p) { .flags = (_y)|Intercept|CheckPerm, \
d40a6898e50c25 Paolo Bonzini 2014-03-27 3985 .intercept = x86_intercept_##_i, .check_perm = (_p) }
0b789eee2c0204 Gleb Natapov 2013-04-11 3986 #define N D(NotImpl)
01de8b09e60689 Joerg Roedel 2011-04-04 3987 #define EXT(_f, _e) { .flags = ((_f) | RMExt), .u.group = (_e) }
1c2545be05f436 Takuya Yoshikawa 2012-04-30 3988 #define G(_f, _g) { .flags = ((_f) | Group | ModRM), .u.group = (_g) }
1c2545be05f436 Takuya Yoshikawa 2012-04-30 3989 #define GD(_f, _g) { .flags = ((_f) | GroupDual | ModRM), .u.gdual = (_g) }
39f062ff51b2a3 Nadav Amit 2014-11-26 3990 #define ID(_f, _i) { .flags = ((_f) | InstrDual | ModRM), .u.idual = (_i) }
2276b5116e9832 Nadav Amit 2015-01-26 3991 #define MD(_f, _m) { .flags = ((_f) | ModeDual), .u.mdual = (_m) }
045a282ca41505 Gleb Natapov 2012-12-20 3992 #define E(_f, _e) { .flags = ((_f) | Escape | ModRM), .u.esc = (_e) }
73fba5f4fe3e08 Avi Kivity 2010-07-29 @3993 #define I(_f, _e) { .flags = (_f), .u.execute = (_e) }
c4f035c60dad45 Avi Kivity 2011-04-04 3994 #define II(_f, _e, _i) \
d40a6898e50c25 Paolo Bonzini 2014-03-27 3995 { .flags = (_f)|Intercept, .u.execute = (_e), .intercept = x86_intercept_##_i }
d09beabd7cd4cf Joerg Roedel 2011-04-04 3996 #define IIP(_f, _e, _i, _p) \
d40a6898e50c25 Paolo Bonzini 2014-03-27 3997 { .flags = (_f)|Intercept|CheckPerm, .u.execute = (_e), \
d40a6898e50c25 Paolo Bonzini 2014-03-27 3998 .intercept = x86_intercept_##_i, .check_perm = (_p) }
aa97bb4891b1f1 Avi Kivity 2010-01-20 3999 #define GP(_f, _g) { .flags = ((_f) | Prefix), .u.gprefix = (_g) }
73fba5f4fe3e08 Avi Kivity 2010-07-29 4000
:::::: The code at line 3993 was first introduced by commit
:::::: 73fba5f4fe3e08bd7acb18a65b53643445c8f028 KVM: x86 emulator: move decode tables downwards
:::::: TO: Avi Kivity <avi@redhat.com>
:::::: CC: Avi Kivity <avi@redhat.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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