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Date: Fri, 31 Dec 2021 06:50:01 +0800
From: kernel test robot <lkp@...el.com>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [ardb:xor-restrict 1/2] arch/powerpc/lib/xor_vmx.c:52:6: error:
conflicting types for '__xor_altivec_2'; have 'void(long unsigned int, long
unsigned int *, long unsigned int *)'
tree: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git xor-restrict
head: d2950492157a7e6af397c6d68c6e212a4844be64
commit: e754a2be51e5330e138271067808681b4a13ade2 [1/2] lib/xor: make xor prototypes more friendely to compiler vectorization
config: powerpc-g5_defconfig (https://download.01.org/0day-ci/archive/20211231/202112310646.kuh2pXiG-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
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/ardb/linux.git/commit/?id=e754a2be51e5330e138271067808681b4a13ade2
git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
git fetch --no-tags ardb xor-restrict
git checkout e754a2be51e5330e138271067808681b4a13ade2
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash
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 >>):
>> arch/powerpc/lib/xor_vmx.c:52:6: error: conflicting types for '__xor_altivec_2'; have 'void(long unsigned int, long unsigned int *, long unsigned int *)'
52 | void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
| ^~~~~~~~~~~~~~~
In file included from arch/powerpc/lib/xor_vmx.c:20:
arch/powerpc/lib/xor_vmx.h:9:6: note: previous declaration of '__xor_altivec_2' with type 'void(long unsigned int, long unsigned int * __restrict__, const long unsigned int * __restrict__)'
9 | void __xor_altivec_2(unsigned long bytes, unsigned long * __restrict p1,
| ^~~~~~~~~~~~~~~
>> arch/powerpc/lib/xor_vmx.c:70:6: error: conflicting types for '__xor_altivec_3'; have 'void(long unsigned int, long unsigned int *, long unsigned int *, long unsigned int *)'
70 | void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
| ^~~~~~~~~~~~~~~
In file included from arch/powerpc/lib/xor_vmx.c:20:
arch/powerpc/lib/xor_vmx.h:11:6: note: previous declaration of '__xor_altivec_3' with type 'void(long unsigned int, long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__)'
11 | void __xor_altivec_3(unsigned long bytes, unsigned long * __restrict p1,
| ^~~~~~~~~~~~~~~
>> arch/powerpc/lib/xor_vmx.c:92:6: error: conflicting types for '__xor_altivec_4'; have 'void(long unsigned int, long unsigned int *, long unsigned int *, long unsigned int *, long unsigned int *)'
92 | void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
| ^~~~~~~~~~~~~~~
In file included from arch/powerpc/lib/xor_vmx.c:20:
arch/powerpc/lib/xor_vmx.h:14:6: note: previous declaration of '__xor_altivec_4' with type 'void(long unsigned int, long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__)'
14 | void __xor_altivec_4(unsigned long bytes, unsigned long * __restrict p1,
| ^~~~~~~~~~~~~~~
>> arch/powerpc/lib/xor_vmx.c:119:6: error: conflicting types for '__xor_altivec_5'; have 'void(long unsigned int, long unsigned int *, long unsigned int *, long unsigned int *, long unsigned int *, long unsigned int *)'
119 | void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
| ^~~~~~~~~~~~~~~
In file included from arch/powerpc/lib/xor_vmx.c:20:
arch/powerpc/lib/xor_vmx.h:18:6: note: previous declaration of '__xor_altivec_5' with type 'void(long unsigned int, long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__, const long unsigned int * __restrict__)'
18 | void __xor_altivec_5(unsigned long bytes, unsigned long * __restrict p1,
| ^~~~~~~~~~~~~~~
vim +52 arch/powerpc/lib/xor_vmx.c
ef1313deafb7ba Anton Blanchard 2013-10-14 23
ef1313deafb7ba Anton Blanchard 2013-10-14 24 #define DEFINE(V) \
ef1313deafb7ba Anton Blanchard 2013-10-14 25 unative_t *V = (unative_t *)V##_in; \
ef1313deafb7ba Anton Blanchard 2013-10-14 26 unative_t V##_0, V##_1, V##_2, V##_3
ef1313deafb7ba Anton Blanchard 2013-10-14 27
ef1313deafb7ba Anton Blanchard 2013-10-14 28 #define LOAD(V) \
ef1313deafb7ba Anton Blanchard 2013-10-14 29 do { \
ef1313deafb7ba Anton Blanchard 2013-10-14 30 V##_0 = V[0]; \
ef1313deafb7ba Anton Blanchard 2013-10-14 31 V##_1 = V[1]; \
ef1313deafb7ba Anton Blanchard 2013-10-14 32 V##_2 = V[2]; \
ef1313deafb7ba Anton Blanchard 2013-10-14 33 V##_3 = V[3]; \
ef1313deafb7ba Anton Blanchard 2013-10-14 34 } while (0)
ef1313deafb7ba Anton Blanchard 2013-10-14 35
ef1313deafb7ba Anton Blanchard 2013-10-14 36 #define STORE(V) \
ef1313deafb7ba Anton Blanchard 2013-10-14 37 do { \
ef1313deafb7ba Anton Blanchard 2013-10-14 38 V[0] = V##_0; \
ef1313deafb7ba Anton Blanchard 2013-10-14 39 V[1] = V##_1; \
ef1313deafb7ba Anton Blanchard 2013-10-14 40 V[2] = V##_2; \
ef1313deafb7ba Anton Blanchard 2013-10-14 41 V[3] = V##_3; \
ef1313deafb7ba Anton Blanchard 2013-10-14 42 } while (0)
ef1313deafb7ba Anton Blanchard 2013-10-14 43
ef1313deafb7ba Anton Blanchard 2013-10-14 44 #define XOR(V1, V2) \
ef1313deafb7ba Anton Blanchard 2013-10-14 45 do { \
ef1313deafb7ba Anton Blanchard 2013-10-14 46 V1##_0 = vec_xor(V1##_0, V2##_0); \
ef1313deafb7ba Anton Blanchard 2013-10-14 47 V1##_1 = vec_xor(V1##_1, V2##_1); \
ef1313deafb7ba Anton Blanchard 2013-10-14 48 V1##_2 = vec_xor(V1##_2, V2##_2); \
ef1313deafb7ba Anton Blanchard 2013-10-14 49 V1##_3 = vec_xor(V1##_3, V2##_3); \
ef1313deafb7ba Anton Blanchard 2013-10-14 50 } while (0)
ef1313deafb7ba Anton Blanchard 2013-10-14 51
f718d426d7e42e Matt Brown 2017-05-24 @52 void __xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
ef1313deafb7ba Anton Blanchard 2013-10-14 53 unsigned long *v2_in)
ef1313deafb7ba Anton Blanchard 2013-10-14 54 {
ef1313deafb7ba Anton Blanchard 2013-10-14 55 DEFINE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 56 DEFINE(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 57 unsigned long lines = bytes / (sizeof(unative_t)) / 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 58
ef1313deafb7ba Anton Blanchard 2013-10-14 59 do {
ef1313deafb7ba Anton Blanchard 2013-10-14 60 LOAD(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 61 LOAD(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 62 XOR(v1, v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 63 STORE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 64
ef1313deafb7ba Anton Blanchard 2013-10-14 65 v1 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 66 v2 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 67 } while (--lines > 0);
ef1313deafb7ba Anton Blanchard 2013-10-14 68 }
ef1313deafb7ba Anton Blanchard 2013-10-14 69
f718d426d7e42e Matt Brown 2017-05-24 @70 void __xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
ef1313deafb7ba Anton Blanchard 2013-10-14 71 unsigned long *v2_in, unsigned long *v3_in)
ef1313deafb7ba Anton Blanchard 2013-10-14 72 {
ef1313deafb7ba Anton Blanchard 2013-10-14 73 DEFINE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 74 DEFINE(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 75 DEFINE(v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 76 unsigned long lines = bytes / (sizeof(unative_t)) / 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 77
ef1313deafb7ba Anton Blanchard 2013-10-14 78 do {
ef1313deafb7ba Anton Blanchard 2013-10-14 79 LOAD(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 80 LOAD(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 81 LOAD(v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 82 XOR(v1, v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 83 XOR(v1, v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 84 STORE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 85
ef1313deafb7ba Anton Blanchard 2013-10-14 86 v1 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 87 v2 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 88 v3 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 89 } while (--lines > 0);
ef1313deafb7ba Anton Blanchard 2013-10-14 90 }
ef1313deafb7ba Anton Blanchard 2013-10-14 91
f718d426d7e42e Matt Brown 2017-05-24 @92 void __xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
ef1313deafb7ba Anton Blanchard 2013-10-14 93 unsigned long *v2_in, unsigned long *v3_in,
ef1313deafb7ba Anton Blanchard 2013-10-14 94 unsigned long *v4_in)
ef1313deafb7ba Anton Blanchard 2013-10-14 95 {
ef1313deafb7ba Anton Blanchard 2013-10-14 96 DEFINE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 97 DEFINE(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 98 DEFINE(v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 99 DEFINE(v4);
ef1313deafb7ba Anton Blanchard 2013-10-14 100 unsigned long lines = bytes / (sizeof(unative_t)) / 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 101
ef1313deafb7ba Anton Blanchard 2013-10-14 102 do {
ef1313deafb7ba Anton Blanchard 2013-10-14 103 LOAD(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 104 LOAD(v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 105 LOAD(v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 106 LOAD(v4);
ef1313deafb7ba Anton Blanchard 2013-10-14 107 XOR(v1, v2);
ef1313deafb7ba Anton Blanchard 2013-10-14 108 XOR(v3, v4);
ef1313deafb7ba Anton Blanchard 2013-10-14 109 XOR(v1, v3);
ef1313deafb7ba Anton Blanchard 2013-10-14 110 STORE(v1);
ef1313deafb7ba Anton Blanchard 2013-10-14 111
ef1313deafb7ba Anton Blanchard 2013-10-14 112 v1 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 113 v2 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 114 v3 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 115 v4 += 4;
ef1313deafb7ba Anton Blanchard 2013-10-14 116 } while (--lines > 0);
ef1313deafb7ba Anton Blanchard 2013-10-14 117 }
ef1313deafb7ba Anton Blanchard 2013-10-14 118
f718d426d7e42e Matt Brown 2017-05-24 @119 void __xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
:::::: The code at line 52 was first introduced by commit
:::::: f718d426d7e42eec6e5d2932f52a51de23bd3b30 powerpc/lib/xor_vmx: Ensure no altivec code executes before enable_kernel_altivec()
:::::: TO: Matt Brown <matthew.brown.dev@...il.com>
:::::: CC: Michael Ellerman <mpe@...erman.id.au>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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