powerpc/math-emu: Remove redundant 'ret'

FP_DECL_EX is already used, so ret is redundant.
And FP_SET_EXCEPTION will add status into return value.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

18 files changed, 34 insertions, 52 deletions

diff --git a/arch/powerpc/math-emu/fadd.c b/arch/powerpc/math-emu/fadd.c
index 04d3b4aa32c..0158a16e2b8 100644
--- a/arch/powerpc/math-emu/fadd.c
+++ b/arch/powerpc/math-emu/fadd.c
@@ -13,7 +13,6 @@ fadd(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
diff --git a/arch/powerpc/math-emu/fcmpo.c b/arch/powerpc/math-emu/fcmpo.c
index b5dc4498cd7..5bce011c2ae 100644
--- a/arch/powerpc/math-emu/fcmpo.c
+++ b/arch/powerpc/math-emu/fcmpo.c
@@ -14,7 +14,6 @@ fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
         FP_DECL_EX;
         int code[4] = { (1 << 3), (1 << 1), (1 << 2), (1 << 0) };
         long cmp;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p (%08x) %d %p %p\n", __func__, ccr, *ccr, crfD, frA, frB);
@@ -29,7 +28,7 @@ fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
 #endif
 
         if (A_c == FP_CLS_NAN || B_c == FP_CLS_NAN)
-                ret |= EFLAG_VXVC;
+                FP_SET_EXCEPTION(EFLAG_VXVC);
 
         FP_CMP_D(cmp, A, B, 2);
         cmp = code[(cmp + 1) & 3];
@@ -44,5 +43,5 @@ fcmpo(u32 *ccr, int crfD, void *frA, void *frB)
         printk("CR: %08x\n", *ccr);
 #endif
 
-        return ret;
+        return FP_CUR_EXCEPTIONS;
 }
diff --git a/arch/powerpc/math-emu/fdiv.c b/arch/powerpc/math-emu/fdiv.c
index 2db15097d98..a29239c05e3 100644
--- a/arch/powerpc/math-emu/fdiv.c
+++ b/arch/powerpc/math-emu/fdiv.c
@@ -13,7 +13,6 @@ fdiv(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -28,22 +27,22 @@ fdiv(void *frD, void *frA, void *frB)
 #endif
 
         if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
-                ret |= EFLAG_VXZDZ;
+                FP_SET_EXCEPTION(EFLAG_VXZDZ);
 #ifdef DEBUG
                 printk("%s: FPSCR_VXZDZ raised\n", __func__);
 #endif
         }
         if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
-                ret |= EFLAG_VXIDI;
+                FP_SET_EXCEPTION(EFLAG_VXIDI);
 #ifdef DEBUG
                 printk("%s: FPSCR_VXIDI raised\n", __func__);
 #endif
         }
 
         if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
-                ret |= EFLAG_DIVZERO;
+                FP_SET_EXCEPTION(EFLAG_DIVZERO);
                 if (__FPU_TRAP_P(EFLAG_DIVZERO))
-                        return ret;
+                        return FP_CUR_EXCEPTIONS;
         }
         FP_DIV_D(R, A, B);
 
diff --git a/arch/powerpc/math-emu/fdivs.c b/arch/powerpc/math-emu/fdivs.c
index 797f6a9a20b..526bc261275 100644
--- a/arch/powerpc/math-emu/fdivs.c
+++ b/arch/powerpc/math-emu/fdivs.c
@@ -14,7 +14,6 @@ fdivs(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -29,22 +28,22 @@ fdivs(void *frD, void *frA, void *frB)
 #endif
 
         if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
-                ret |= EFLAG_VXZDZ;
+                FP_SET_EXCEPTION(EFLAG_VXZDZ);
 #ifdef DEBUG
                 printk("%s: FPSCR_VXZDZ raised\n", __func__);
 #endif
         }
         if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
-                ret |= EFLAG_VXIDI;
+                FP_SET_EXCEPTION(EFLAG_VXIDI);
 #ifdef DEBUG
                 printk("%s: FPSCR_VXIDI raised\n", __func__);
 #endif
         }
 
         if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
-                ret |= EFLAG_DIVZERO;
+                FP_SET_EXCEPTION(EFLAG_DIVZERO);
                 if (__FPU_TRAP_P(EFLAG_DIVZERO))
-                        return ret;
+                        return FP_CUR_EXCEPTIONS;
         }
 
         FP_DIV_D(R, A, B);
diff --git a/arch/powerpc/math-emu/fmadd.c b/arch/powerpc/math-emu/fmadd.c
index 925313aa6f8..8c3f20aa5a9 100644
--- a/arch/powerpc/math-emu/fmadd.c
+++ b/arch/powerpc/math-emu/fmadd.c
@@ -15,7 +15,6 @@ fmadd(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -33,12 +32,12 @@ fmadd(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fmadds.c b/arch/powerpc/math-emu/fmadds.c
index aea80ef7939..794fb31e59d 100644
--- a/arch/powerpc/math-emu/fmadds.c
+++ b/arch/powerpc/math-emu/fmadds.c
@@ -16,7 +16,6 @@ fmadds(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -34,12 +33,12 @@ fmadds(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fmsub.c b/arch/powerpc/math-emu/fmsub.c
index a644d525fca..626f6fed84a 100644
--- a/arch/powerpc/math-emu/fmsub.c
+++ b/arch/powerpc/math-emu/fmsub.c
@@ -15,7 +15,6 @@ fmsub(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -33,7 +32,7 @@ fmsub(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
@@ -41,7 +40,7 @@ fmsub(void *frD, void *frA, void *frB, void *frC)
                 B_s ^= 1;
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fmsubs.c b/arch/powerpc/math-emu/fmsubs.c
index 2fdeeb9bb56..3425bc89976 100644
--- a/arch/powerpc/math-emu/fmsubs.c
+++ b/arch/powerpc/math-emu/fmsubs.c
@@ -16,7 +16,6 @@ fmsubs(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -34,7 +33,7 @@ fmsubs(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
@@ -42,7 +41,7 @@ fmsubs(void *frD, void *frA, void *frB, void *frC)
                 B_s ^= 1;
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fmul.c b/arch/powerpc/math-emu/fmul.c
index 391fd17d344..2c192977989 100644
--- a/arch/powerpc/math-emu/fmul.c
+++ b/arch/powerpc/math-emu/fmul.c
@@ -13,7 +13,6 @@ fmul(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -31,7 +30,7 @@ fmul(void *frD, void *frA, void *frB)
 
         if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(R, A, B);
 
diff --git a/arch/powerpc/math-emu/fmuls.c b/arch/powerpc/math-emu/fmuls.c
index 2d3ec5f7da2..f5ad5c9c77d 100644
--- a/arch/powerpc/math-emu/fmuls.c
+++ b/arch/powerpc/math-emu/fmuls.c
@@ -14,7 +14,6 @@ fmuls(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -32,7 +31,7 @@ fmuls(void *frD, void *frA, void *frB)
 
         if ((A_c == FP_CLS_INF && B_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && B_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(R, A, B);
 
diff --git a/arch/powerpc/math-emu/fnmadd.c b/arch/powerpc/math-emu/fnmadd.c
index 2497b86494e..e817bc5453e 100644
--- a/arch/powerpc/math-emu/fnmadd.c
+++ b/arch/powerpc/math-emu/fnmadd.c
@@ -15,7 +15,6 @@ fnmadd(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -33,12 +32,12 @@ fnmadd(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fnmadds.c b/arch/powerpc/math-emu/fnmadds.c
index ee9d71e0b37..4db4b7d9ba8 100644
--- a/arch/powerpc/math-emu/fnmadds.c
+++ b/arch/powerpc/math-emu/fnmadds.c
@@ -16,7 +16,6 @@ fnmadds(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -34,12 +33,12 @@ fnmadds(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fnmsub.c b/arch/powerpc/math-emu/fnmsub.c
index 3885a77acc9..f65979fa770 100644
--- a/arch/powerpc/math-emu/fnmsub.c
+++ b/arch/powerpc/math-emu/fnmsub.c
@@ -15,7 +15,6 @@ fnmsub(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -33,7 +32,7 @@ fnmsub(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
@@ -41,7 +40,7 @@ fnmsub(void *frD, void *frA, void *frB, void *frC)
                 B_s ^= 1;
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fnmsubs.c b/arch/powerpc/math-emu/fnmsubs.c
index f835dfeb0fd..9021dacc03b 100644
--- a/arch/powerpc/math-emu/fnmsubs.c
+++ b/arch/powerpc/math-emu/fnmsubs.c
@@ -16,7 +16,6 @@ fnmsubs(void *frD, void *frA, void *frB, void *frC)
         FP_DECL_D(C);
         FP_DECL_D(T);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
@@ -34,7 +33,7 @@ fnmsubs(void *frD, void *frA, void *frB, void *frC)
 
         if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) ||
             (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF))
-                ret |= EFLAG_VXIMZ;
+                FP_SET_EXCEPTION(EFLAG_VXIMZ);
 
         FP_MUL_D(T, A, C);
 
@@ -42,7 +41,7 @@ fnmsubs(void *frD, void *frA, void *frB, void *frC)
                 B_s ^= 1;
 
         if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, T, B);
 
diff --git a/arch/powerpc/math-emu/fsqrt.c b/arch/powerpc/math-emu/fsqrt.c
index 3e90072693a..a55fc7d4998 100644
--- a/arch/powerpc/math-emu/fsqrt.c
+++ b/arch/powerpc/math-emu/fsqrt.c
@@ -12,7 +12,6 @@ fsqrt(void *frD, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frB);
@@ -25,9 +24,9 @@ fsqrt(void *frD, void *frB)
 #endif
 
         if (B_s && B_c != FP_CLS_ZERO)
-                ret |= EFLAG_VXSQRT;
+                FP_SET_EXCEPTION(EFLAG_VXSQRT);
         if (B_c == FP_CLS_NAN)
-                ret |= EFLAG_VXSNAN;
+                FP_SET_EXCEPTION(EFLAG_VXSNAN);
 
         FP_SQRT_D(R, B);
 
diff --git a/arch/powerpc/math-emu/fsqrts.c b/arch/powerpc/math-emu/fsqrts.c
index 2843be986e2..31dccbfc39f 100644
--- a/arch/powerpc/math-emu/fsqrts.c
+++ b/arch/powerpc/math-emu/fsqrts.c
@@ -13,7 +13,6 @@ fsqrts(void *frD, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p %p\n", __func__, frD, frB);
@@ -26,9 +25,9 @@ fsqrts(void *frD, void *frB)
 #endif
 
         if (B_s && B_c != FP_CLS_ZERO)
-                ret |= EFLAG_VXSQRT;
+                FP_SET_EXCEPTION(EFLAG_VXSQRT);
         if (B_c == FP_CLS_NAN)
-                ret |= EFLAG_VXSNAN;
+                FP_SET_EXCEPTION(EFLAG_VXSNAN);
 
         FP_SQRT_D(R, B);
 
diff --git a/arch/powerpc/math-emu/fsub.c b/arch/powerpc/math-emu/fsub.c
index 78b09446a0e..02c5dff458b 100644
--- a/arch/powerpc/math-emu/fsub.c
+++ b/arch/powerpc/math-emu/fsub.c
@@ -13,7 +13,6 @@ fsub(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -31,7 +30,7 @@ fsub(void *frD, void *frA, void *frB)
                 B_s ^= 1;
 
         if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, A, B);
 
diff --git a/arch/powerpc/math-emu/fsubs.c b/arch/powerpc/math-emu/fsubs.c
index d3bf90863cf..5d9b18c35e0 100644
--- a/arch/powerpc/math-emu/fsubs.c
+++ b/arch/powerpc/math-emu/fsubs.c
@@ -14,7 +14,6 @@ fsubs(void *frD, void *frA, void *frB)
         FP_DECL_D(B);
         FP_DECL_D(R);
         FP_DECL_EX;
-        int ret = 0;
 
 #ifdef DEBUG
         printk("%s: %p %p %p\n", __func__, frD, frA, frB);
@@ -32,7 +31,7 @@ fsubs(void *frD, void *frA, void *frB)
                 B_s ^= 1;
 
         if (A_s != B_s && A_c == FP_CLS_INF && B_c == FP_CLS_INF)
-                ret |= EFLAG_VXISI;
+                FP_SET_EXCEPTION(EFLAG_VXISI);
 
         FP_ADD_D(R, A, B);