Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

[deliverable/linux.git] / arch / mips / math-emu / dp_sub.c

diff --git a/arch/mips/math-emu/dp_sub.c b/arch/mips/math-emu/dp_sub.c
index 7a174029043a674348619f65de6d5433dd25b283..fc17a781b9ae868890303f57b08eb6f7b7d72cd3 100644 (file)
--- a/arch/mips/math-emu/dp_sub.c
+++ b/arch/mips/math-emu/dp_sub.c
@@ -37,19 +37,20 @@ union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y)
        FLUSHYDP;
 
        switch (CLPAIR(xc, yc)) {
-       case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
        case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
-       case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
        case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
        case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
        case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
        case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+               return ieee754dp_nanxcpt(y);
+
+       case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
+       case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
        case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
        case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
        case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
        case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
-               ieee754_setcx(IEEE754_INVALID_OPERATION);
-               return ieee754dp_nanxcpt(ieee754dp_indef());
+               return ieee754dp_nanxcpt(x);
 
        case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
        case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
@@ -153,8 +154,6 @@ union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y)
                /* generate 28 bit result of adding two 27 bit numbers
                 */
                xm = xm + ym;
-               xe = xe;
-               xs = xs;
 
                if (xm >> (DP_FBITS + 1 + 3)) { /* carry out */
                        xm = XDPSRS1(xm);       /* shift preserving sticky */
@@ -163,11 +162,8 @@ union ieee754dp ieee754dp_sub(union ieee754dp x, union ieee754dp y)
        } else {
                if (xm >= ym) {
                        xm = xm - ym;
-                       xe = xe;
-                       xs = xs;
                } else {
                        xm = ym - xm;
-                       xe = xe;
                        xs = ys;
                }
                if (xm == 0) {