[powerpc:test 6/9] arch/sh/math-emu/math.c:129:1: warning: ISO C90 forbids mixed declarations and code
kbuild test robot
fengguang.wu at intel.com
Wed Nov 18 23:35:11 AEDT 2015
tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git test
head: ebb77ceeb18554a309846f9025a432fe848ddc8e
commit: a4572d52d6d662db3956d1bc91a745e39a376979 [6/9] sh/math-emu: Move sh from math-emu-old to math-emu
config: sh-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout a4572d52d6d662db3956d1bc91a745e39a376979
# save the attached .config to linux build tree
make.cross ARCH=sh
All warnings (new ones prefixed by >>):
In file included from arch/sh/math-emu/math.c:23:0:
include/math-emu/single.h:76:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from arch/sh/math-emu/math.c:24:0:
include/math-emu/double.h:81:22: warning: "__BIG_ENDIAN" is not defined [-Wundef]
arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
include/linux/fs.h:198:0: note: this is the location of the previous definition
arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
include/linux/fs.h:197:0: note: this is the location of the previous definition
arch/sh/math-emu/math.c: In function 'fadd':
>> arch/sh/math-emu/math.c:129:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
>> arch/sh/math-emu/math.c:129:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c: In function 'fsub':
arch/sh/math-emu/math.c:136:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:136:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c: In function 'fmac':
arch/sh/math-emu/math.c:165:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:165:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:165:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:165:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:165:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c: In function 'ffloat':
arch/sh/math-emu/math.c:313:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c:315:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
arch/sh/math-emu/math.c: At top level:
arch/sh/math-emu/math.c:524:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
vim +129 arch/sh/math-emu/math.c
17 #include <asm/uaccess.h>
18 #include <asm/processor.h>
19 #include <asm/io.h>
20
21 #include "sfp-util.h"
22 #include <math-emu/soft-fp.h>
> 23 #include <math-emu/single.h>
24 #include <math-emu/double.h>
25
26 #define FPUL (fregs->fpul)
27 #define FPSCR (fregs->fpscr)
28 #define FPSCR_RM (FPSCR&3)
29 #define FPSCR_DN ((FPSCR>>18)&1)
30 #define FPSCR_PR ((FPSCR>>19)&1)
31 #define FPSCR_SZ ((FPSCR>>20)&1)
32 #define FPSCR_FR ((FPSCR>>21)&1)
33 #define FPSCR_MASK 0x003fffffUL
34
35 #define BANK(n) (n^(FPSCR_FR?16:0))
36 #define FR ((unsigned long*)(fregs->fp_regs))
37 #define FR0 (FR[BANK(0)])
38 #define FRn (FR[BANK(n)])
39 #define FRm (FR[BANK(m)])
40 #define DR ((unsigned long long*)(fregs->fp_regs))
41 #define DRn (DR[BANK(n)/2])
42 #define DRm (DR[BANK(m)/2])
43
44 #define XREG(n) (n^16)
45 #define XFn (FR[BANK(XREG(n))])
46 #define XFm (FR[BANK(XREG(m))])
47 #define XDn (DR[BANK(XREG(n))/2])
48 #define XDm (DR[BANK(XREG(m))/2])
49
50 #define R0 (regs->regs[0])
51 #define Rn (regs->regs[n])
52 #define Rm (regs->regs[m])
53
54 #define WRITE(d,a) ({if(put_user(d, (typeof (d)*)a)) return -EFAULT;})
55 #define READ(d,a) ({if(get_user(d, (typeof (d)*)a)) return -EFAULT;})
56
57 #define PACK_S(r,f) FP_PACK_SP(&r,f)
58 #define PACK_SEMIRAW_S(r,f) FP_PACK_SEMIRAW_SP(&r,f)
59 #define PACK_RAW_S(r,f) FP_PACK_RAW_SP(&r,f)
60 #define UNPACK_S(f,r) FP_UNPACK_SP(f,&r)
61 #define UNPACK_SEMIRAW_S(f,r) FP_UNPACK_SEMIRAW_SP(f,&r)
62 #define UNPACK_RAW_S(f,r) FP_UNPACK_RAW_SP(f,&r)
63 #define PACK_D(r,f) \
64 {u32 t[2]; FP_PACK_DP(t,f); ((u32*)&r)[0]=t[1]; ((u32*)&r)[1]=t[0];}
65 #define PACK_SEMIRAW_D(r,f) \
66 {u32 t[2]; FP_PACK_SEMIRAW_DP(t,f); ((u32*)&r)[0]=t[1]; \
67 ((u32*)&r)[1]=t[0];}
68 #define PACK_RAW_D(r,f) \
69 {u32 t[2]; FP_PACK_RAW_DP(t,f); ((u32*)&r)[0]=t[1]; ((u32*)&r)[1]=t[0];}
70 #define UNPACK_D(f,r) \
71 {u32 t[2]; t[0]=((u32*)&r)[1]; t[1]=((u32*)&r)[0]; FP_UNPACK_DP(f,t);}
72 #define UNPACK_SEMIRAW_D(f,r) \
73 {u32 t[2]; t[0]=((u32*)&r)[1]; t[1]=((u32*)&r)[0]; \
74 FP_UNPACK_SEMIRAW_DP(f,t);}
75 #define UNPACK_RAW_D(f,r) \
76 {u32 t[2]; t[0]=((u32*)&r)[1]; t[1]=((u32*)&r)[0]; \
77 FP_UNPACK_RAW_DP(f,t);}
78
79 // 2 args instructions.
80 #define BOTH_PRmn(op,x) \
81 FP_DECL_EX; if(FPSCR_PR) op(D,x,DRm,DRn); else op(S,x,FRm,FRn);
82
83 #define CMP_X(SZ,R,M,N) do{ \
84 FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \
85 UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \
86 FP_CMP_##SZ(R, Fn, Fm, 2, 0); }while(0)
87 #define EQ_X(SZ,R,M,N) do{ \
88 FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \
89 UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \
90 FP_CMP_EQ_##SZ(R, Fn, Fm, 0); }while(0)
91 #define CMP(OP) ({ int r; BOTH_PRmn(OP##_X,r); r; })
92
93 static int
94 fcmp_gt(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n)
95 {
96 if (CMP(CMP) > 0)
97 regs->sr |= 1;
98 else
99 regs->sr &= ~1;
100
101 return 0;
102 }
103
104 static int
105 fcmp_eq(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n)
106 {
107 if (CMP(CMP /*EQ*/) == 0)
108 regs->sr |= 1;
109 else
110 regs->sr &= ~1;
111 return 0;
112 }
113
114 #define ARITH_X(SZ,OP,M,N) do{ \
115 FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); FP_DECL_##SZ(Fr); \
116 UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \
117 FP_##OP##_##SZ(Fr, Fn, Fm); \
118 PACK_##SZ(N, Fr); }while(0)
119
120 #define ARITH_SEMIRAW_X(SZ,OP,M,N) do{ \
121 FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); FP_DECL_##SZ(Fr); \
122 UNPACK_SEMIRAW_##SZ(Fm, M); UNPACK_SEMIRAW_##SZ(Fn, N); \
123 FP_##OP##_##SZ(Fr, Fn, Fm); \
124 PACK_SEMIRAW_##SZ(N, Fr); }while(0)
125
126 static int
127 fadd(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n)
128 {
> 129 BOTH_PRmn(ARITH_SEMIRAW_X, ADD);
130 return 0;
131 }
132
---
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