[mark:treewide/gnu99 2/2] arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
7:06 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git treewide/gnu99
head: 4c56f3c557cbc276326c329e05f64a53398affec
commit: 4c56f3c557cbc276326c329e05f64a53398affec [2/2] treewide: use -std=gnu99
config: arc-randconfig-r033-20220113
(https://download.01.org/0day-ci/archive/20220114/202201140413.8kgvmUzA-lk...)
compiler: arc-elf-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/mark/linux.git/commit/?id...
git remote add mark
https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
git fetch --no-tags mark treewide/gnu99
git checkout 4c56f3c557cbc276326c329e05f64a53398affec
# 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=arc SHELL=/bin/bash arch/arc/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
In file included from arch/arc/kernel/disasm.c:13:
arch/arc/kernel/disasm.c: In function 'disasm_instr':
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:50:47: note: in expansion of macro 'BITS'
50 | #define FIELD_s25(word) sign_extend(((BITS(word, 0, 3) << 21) |
\
| ^~~~
arch/arc/kernel/disasm.c:73:25: note: in expansion of macro 'FIELD_s25'
73 | FIELD_s25(state->words[0]) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:51:42: note: in expansion of macro 'BITS'
51 | (BITS(word, 6, 15) << 11) | \
| ^~~~
arch/arc/kernel/disasm.c:73:25: note: in expansion of macro 'FIELD_s25'
73 | FIELD_s25(state->words[0]) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:52:42: note: in expansion of macro 'BITS'
52 | (BITS(word, 17, 26) << 1)), 12)
| ^~~~
arch/arc/kernel/disasm.c:73:25: note: in expansion of macro 'FIELD_s25'
73 | FIELD_s25(state->words[0]) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:48:47: note: in expansion of macro 'BITS'
48 | #define FIELD_s21(word) sign_extend(((BITS(word, 6, 15) << 11) |
\
| ^~~~
arch/arc/kernel/disasm.c:74:25: note: in expansion of macro 'FIELD_s21'
74 | FIELD_s21(state->words[0]);
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:49:42: note: in expansion of macro 'BITS'
49 | (BITS(word, 17, 26) << 1)), 12)
| ^~~~
arch/arc/kernel/disasm.c:74:25: note: in expansion of macro 'FIELD_s21'
74 | FIELD_s21(state->words[0]);
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:50:47: note: in expansion of macro 'BITS'
50 | #define FIELD_s25(word) sign_extend(((BITS(word, 0, 3) << 21) |
\
| ^~~~
arch/arc/kernel/disasm.c:86:34: note: in expansion of macro 'FIELD_s25'
86 | (FIELD_s25(state->words[0]) & ~0x3) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:51:42: note: in expansion of macro 'BITS'
51 | (BITS(word, 6, 15) << 11) | \
| ^~~~
arch/arc/kernel/disasm.c:86:34: note: in expansion of macro 'FIELD_s25'
86 | (FIELD_s25(state->words[0]) & ~0x3) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:52:42: note: in expansion of macro 'BITS'
52 | (BITS(word, 17, 26) << 1)), 12)
| ^~~~
arch/arc/kernel/disasm.c:86:34: note: in expansion of macro 'FIELD_s25'
86 | (FIELD_s25(state->words[0]) & ~0x3) :
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:48:47: note: in expansion of macro 'BITS'
48 | #define FIELD_s21(word) sign_extend(((BITS(word, 6, 15) << 11) |
\
| ^~~~
arch/arc/kernel/disasm.c:87:33: note: in expansion of macro 'FIELD_s21'
87 | FIELD_s21(state->words[0]);
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:49:42: note: in expansion of macro 'BITS'
49 | (BITS(word, 17, 26) << 1)), 12)
| ^~~~
arch/arc/kernel/disasm.c:87:33: note: in expansion of macro 'FIELD_s21'
87 | FIELD_s21(state->words[0]);
| ^~~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:46:47: note: in expansion of macro 'BITS'
46 | #define FIELD_s9(word) sign_extend(((BITS(word, 15, 15) << 8) |
\
| ^~~~
arch/arc/kernel/disasm.c:92:34: note: in expansion of macro 'FIELD_s9'
92 | fieldA = FIELD_s9(state->words[0]) & ~0x3;
| ^~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:47:41: note: in expansion of macro 'BITS'
47 | BITS(word, 16, 23)), 9)
| ^~~~
arch/arc/kernel/disasm.c:92:34: note: in expansion of macro 'FIELD_s9'
92 | fieldA = FIELD_s9(state->words[0]) & ~0x3;
| ^~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:103:29: note: in expansion of macro 'BITS'
103 | state->di = BITS(state->words[0], 11, 11);
| ^~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:106:28: note: in expansion of macro 'BITS'
106 | state->x = BITS(state->words[0], 6, 6);
| ^~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:107:29: note: in expansion of macro 'BITS'
107 | state->zz = BITS(state->words[0], 7, 8);
| ^~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:108:29: note: in expansion of macro 'BITS'
108 | state->aa = BITS(state->words[0], 9, 10);
| ^~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:37:35: note: in expansion of macro 'BITS'
37 | #define FIELD_B(word) ((BITS((word), 12, 14)<<3) | \
| ^~~~
arch/arc/kernel/disasm.c:109:33: note: in expansion of macro 'FIELD_B'
109 | state->wb_reg = FIELD_B(state->words[0]);
| ^~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:38:34: note: in expansion of macro 'BITS'
38 | (BITS((word), 24, 26)))
| ^~~~
arch/arc/kernel/disasm.c:109:33: note: in expansion of macro 'FIELD_B'
109 | state->wb_reg = FIELD_B(state->words[0]);
| ^~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:46:47: note: in expansion of macro 'BITS'
46 | #define FIELD_s9(word) sign_extend(((BITS(word, 15, 15) << 8) |
\
| ^~~~
arch/arc/kernel/disasm.c:117:31: note: in expansion of macro 'FIELD_s9'
117 | state->src2 = FIELD_s9(state->words[0]);
| ^~~~~~~~
> arch/arc/include/asm/disasm.h:32:60: warning: left shift of
negative value [-Wshift-negative-value]
32 | #define BITS(word, s, e)
(((word) >> (s)) & (~((-2) << ((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:47:41: note: in expansion of macro 'BITS'
47 | BITS(word, 16, 23)), 9)
| ^~~~
arch/arc/kernel/disasm.c:117:31: note: in expansion of macro 'FIELD_s9'
117 | state->src2 = FIELD_s9(state->words[0]);
| ^~~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:36:34: note: in expansion of macro 'BITS'
36 | #define FIELD_A(word) (BITS((word), 0, 5))
| ^~~~
arch/arc/kernel/disasm.c:118:31: note: in expansion of macro 'FIELD_A'
118 | state->dest = FIELD_A(state->words[0]);
| ^~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:124:29: note: in expansion of macro 'BITS'
124 | state->di = BITS(state->words[0], 5, 5);
| ^~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:127:29: note: in expansion of macro 'BITS'
127 | state->aa = BITS(state->words[0], 3, 4);
| ^~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:128:29: note: in expansion of macro 'BITS'
128 | state->zz = BITS(state->words[0], 1, 2);
| ^~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:39:34: note: in expansion of macro 'BITS'
39 | #define FIELD_C(word) (BITS((word), 6, 11))
| ^~~~
arch/arc/kernel/disasm.c:129:31: note: in expansion of macro 'FIELD_C'
129 | state->src1 = FIELD_C(state->words[0]);
| ^~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:37:35: note: in expansion of macro 'BITS'
37 | #define FIELD_B(word) ((BITS((word), 12, 14)<<3) | \
| ^~~~
arch/arc/kernel/disasm.c:136:33: note: in expansion of macro 'FIELD_B'
136 | state->wb_reg = FIELD_B(state->words[0]);
| ^~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:38:34: note: in expansion of macro 'BITS'
38 | (BITS((word), 24, 26)))
| ^~~~
arch/arc/kernel/disasm.c:136:33: note: in expansion of macro 'FIELD_B'
136 | state->wb_reg = FIELD_B(state->words[0]);
| ^~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:46:47: note: in expansion of macro 'BITS'
46 | #define FIELD_s9(word) sign_extend(((BITS(word, 15, 15) << 8) |
\
| ^~~~
arch/arc/kernel/disasm.c:144:31: note: in expansion of macro 'FIELD_s9'
144 | state->src3 = FIELD_s9(state->words[0]);
| ^~~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:47:41: note: in expansion of macro 'BITS'
47 | BITS(word, 16, 23)), 9)
| ^~~~
arch/arc/kernel/disasm.c:144:31: note: in expansion of macro 'FIELD_s9'
144 | state->src3 = FIELD_s9(state->words[0]);
| ^~~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:35:34: note: in expansion of macro 'BITS'
35 | #define MINOR_OPCODE(word) (BITS((word), 16, 21))
| ^~~~
arch/arc/kernel/disasm.c:148:29: note: in expansion of macro 'MINOR_OPCODE'
148 | subopcode = MINOR_OPCODE(state->words[0]);
| ^~~~~~~~~~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/kernel/disasm.c:163:37: note: in expansion of macro 'BITS'
163 | op_format = BITS(state->words[0], 22, 23);
| ^~~~
arch/arc/include/asm/disasm.h:32:60: warning: left shift of negative value
[-Wshift-negative-value]
32 | #define BITS(word, s, e) (((word) >> (s)) & (~((-2) <<
((e) - (s)))))
| ^~
arch/arc/include/asm/disasm.h:39:34: note: in expansion of macro 'BITS'
39 | #define FIELD_C(word) (BITS((word), 6, 11))
vim +32 arch/arc/include/asm/disasm.h
e65ab5a875d9e8 Vineet Gupta 2013-01-30 30
e65ab5a875d9e8 Vineet Gupta 2013-01-30 31 #define IS_BIT(word, n) ((word) &
(1<<n))
e65ab5a875d9e8 Vineet Gupta 2013-01-30 @32 #define BITS(word, s, e) (((word) >>
(s)) & (~((-2) << ((e) - (s)))))
e65ab5a875d9e8 Vineet Gupta 2013-01-30 33
:::::: The code at line 32 was first introduced by commit
:::::: e65ab5a875d9e8ad8ff37529c2ae844699fefad1 ARC: disassembly (needed by
kprobes/kgdb/unaligned-access-emul)
:::::: TO: Vineet Gupta <vgupta(a)synopsys.com>
:::::: CC: Vineet Gupta <vgupta(a)synopsys.com>
---
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