parisc: math-emu: Fix fall-through warnings

commit 6f1fce595b78b775d7fb585c15c2dc3a6994f96e upstream.

Fix lots of fallthrough warnings, e.g.:
arch/parisc/math-emu/fpudispatch.c:323:33: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/parisc/math-emu/fpudispatch.c b/arch/parisc/math-emu/fpudispatch.c
index 7c46969ead9b1d17df3613fac35ceaa610adb803..01ed133227c25d8cb984b503704390364e7e721a 100644 (file)
--- a/arch/parisc/math-emu/fpudispatch.c
+++ b/arch/parisc/math-emu/fpudispatch.c
@@ -310,12 +310,15 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        r1 &= ~3;
                                        fpregs[t+3] = fpregs[r1+3];
                                        fpregs[t+2] = fpregs[r1+2];
+                                       fallthrough;
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        fpregs[t] = fpregs[r1];
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 3: /* FABS */
                                switch (fmt) {
                                    case 2: /* illegal */
@@ -325,13 +328,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        r1 &= ~3;
                                        fpregs[t+3] = fpregs[r1+3];
                                        fpregs[t+2] = fpregs[r1+2];
+                                       fallthrough;
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        /* copy and clear sign bit */
                                        fpregs[t] = fpregs[r1] & 0x7fffffff;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 6: /* FNEG */
                                switch (fmt) {
                                    case 2: /* illegal */
@@ -341,13 +347,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        r1 &= ~3;
                                        fpregs[t+3] = fpregs[r1+3];
                                        fpregs[t+2] = fpregs[r1+2];
+                                       fallthrough;
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        /* copy and invert sign bit */
                                        fpregs[t] = fpregs[r1] ^ 0x80000000;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 7: /* FNEGABS */
                                switch (fmt) {
                                    case 2: /* illegal */
@@ -357,13 +366,16 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        r1 &= ~3;
                                        fpregs[t+3] = fpregs[r1+3];
                                        fpregs[t+2] = fpregs[r1+2];
+                                       fallthrough;
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        /* copy and set sign bit */
                                        fpregs[t] = fpregs[r1] | 0x80000000;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 4: /* FSQRT */
                                switch (fmt) {
                                    case 0:
@@ -376,6 +388,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 5: /* FRND */
                                switch (fmt) {
                                    case 0:
@@ -389,7 +402,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(MAJOR_0C_EXCP);
                                }
                } /* end of switch (subop) */
-
+               BUG();
        case 1: /* class 1 */
                df = extru(ir,fpdfpos,2); /* get dest format */
                if ((df & 2) || (fmt & 2)) {
@@ -419,6 +432,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* dbl/dbl */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 1: /* FCNVXF */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -434,6 +448,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvxf(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 2: /* FCNVFX */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -449,6 +464,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvfx(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 3: /* FCNVFXT */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -464,6 +480,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvfxt(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 5: /* FCNVUF (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -479,6 +496,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvuf(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 6: /* FCNVFU (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -494,6 +512,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvfu(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 7: /* FCNVFUT (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -509,10 +528,11 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                        return(dbl_to_dbl_fcnvfut(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 4: /* undefined */
                                return(MAJOR_0C_EXCP);
                } /* end of switch subop */
-
+               BUG();
        case 2: /* class 2 */
                fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];
                r2 = extru(ir, fpr2pos, 5) * sizeof(double)/sizeof(u_int);
@@ -590,6 +610,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 1: /* FTEST */
                                switch (fmt) {
                                    case 0:
@@ -609,8 +630,10 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3:
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                    } /* end of switch subop */
                } /* end of else for PA1.0 & PA1.1 */
+               BUG();
        case 3: /* class 3 */
                r2 = extru(ir,fpr2pos,5) * sizeof(double)/sizeof(u_int);
                if (r2 == 0)
@@ -633,6 +656,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 1: /* FSUB */
                                switch (fmt) {
                                    case 0:
@@ -645,6 +669,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 2: /* FMPY */
                                switch (fmt) {
                                    case 0:
@@ -657,6 +682,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 3: /* FDIV */
                                switch (fmt) {
                                    case 0:
@@ -669,6 +695,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                        case 4: /* FREM */
                                switch (fmt) {
                                    case 0:
@@ -681,6 +708,7 @@ decode_0c(u_int ir, u_int class, u_int subop, u_int fpregs[])
                                    case 3: /* quad not implemented */
                                        return(MAJOR_0C_EXCP);
                                }
+                               BUG();
                } /* end of class 3 switch */
        } /* end of switch(class) */
 
@@ -736,10 +764,12 @@ u_int fpregs[];
                                        return(MAJOR_0E_EXCP);
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        fpregs[t] = fpregs[r1];
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 3: /* FABS */
                                switch (fmt) {
                                    case 2:
@@ -747,10 +777,12 @@ u_int fpregs[];
                                        return(MAJOR_0E_EXCP);
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        fpregs[t] = fpregs[r1] & 0x7fffffff;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 6: /* FNEG */
                                switch (fmt) {
                                    case 2:
@@ -758,10 +790,12 @@ u_int fpregs[];
                                        return(MAJOR_0E_EXCP);
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        fpregs[t] = fpregs[r1] ^ 0x80000000;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 7: /* FNEGABS */
                                switch (fmt) {
                                    case 2:
@@ -769,10 +803,12 @@ u_int fpregs[];
                                        return(MAJOR_0E_EXCP);
                                    case 1: /* double */
                                        fpregs[t+1] = fpregs[r1+1];
+                                       fallthrough;
                                    case 0: /* single */
                                        fpregs[t] = fpregs[r1] | 0x80000000;
                                        return(NOEXCEPTION);
                                }
+                               BUG();
                        case 4: /* FSQRT */
                                switch (fmt) {
                                    case 0:
@@ -785,6 +821,7 @@ u_int fpregs[];
                                    case 3:
                                        return(MAJOR_0E_EXCP);
                                }
+                               BUG();
                        case 5: /* FRMD */
                                switch (fmt) {
                                    case 0:
@@ -798,7 +835,7 @@ u_int fpregs[];
                                        return(MAJOR_0E_EXCP);
                                }
                } /* end of switch (subop */
-       
+               BUG();
        case 1: /* class 1 */
                df = extru(ir,fpdfpos,2); /* get dest format */
                /*
@@ -826,6 +863,7 @@ u_int fpregs[];
                                    case 3: /* dbl/dbl */
                                        return(MAJOR_0E_EXCP);
                                }
+                               BUG();
                        case 1: /* FCNVXF */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -841,6 +879,7 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvxf(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 2: /* FCNVFX */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -856,6 +895,7 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvfx(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 3: /* FCNVFXT */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -871,6 +911,7 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvfxt(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 5: /* FCNVUF (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -886,6 +927,7 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvuf(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 6: /* FCNVFU (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -901,6 +943,7 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvfu(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 7: /* FCNVFUT (PA2.0 only) */
                                switch(fmt) {
                                    case 0: /* sgl/sgl */
@@ -916,9 +959,11 @@ u_int fpregs[];
                                        return(dbl_to_dbl_fcnvfut(&fpregs[r1],0,
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 4: /* undefined */
                                return(MAJOR_0C_EXCP);
                } /* end of switch subop */
+               BUG();
        case 2: /* class 2 */
                /*
                 * Be careful out there.
@@ -994,6 +1039,7 @@ u_int fpregs[];
                                }
                    } /* end of switch subop */
                } /* end of else for PA1.0 & PA1.1 */
+               BUG();
        case 3: /* class 3 */
                /*
                 * Be careful out there.
@@ -1026,6 +1072,7 @@ u_int fpregs[];
                                        return(dbl_fadd(&fpregs[r1],&fpregs[r2],
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 1: /* FSUB */
                                switch (fmt) {
                                    case 0:
@@ -1035,6 +1082,7 @@ u_int fpregs[];
                                        return(dbl_fsub(&fpregs[r1],&fpregs[r2],
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 2: /* FMPY or XMPYU */
                                /*
                                 * check for integer multiply (x bit set)
@@ -1071,6 +1119,7 @@ u_int fpregs[];
                                               &fpregs[r2],&fpregs[t],status));
                                    }
                                }
+                               BUG();
                        case 3: /* FDIV */
                                switch (fmt) {
                                    case 0:
@@ -1080,6 +1129,7 @@ u_int fpregs[];
                                        return(dbl_fdiv(&fpregs[r1],&fpregs[r2],
                                                &fpregs[t],status));
                                }
+                               BUG();
                        case 4: /* FREM */
                                switch (fmt) {
                                    case 0: