--- /dev/null
+From 6f1fce595b78b775d7fb585c15c2dc3a6994f96e Mon Sep 17 00:00:00 2001
+From: Helge Deller <deller@gmx.de>
+Date: Wed, 1 Sep 2021 22:18:18 +0200
+Subject: parisc: math-emu: Fix fall-through warnings
+
+From: Helge Deller <deller@gmx.de>
+
+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>
+---
+ arch/parisc/math-emu/fpudispatch.c | 56 +++++++++++++++++++++++++++++++++++--
+ 1 file changed, 53 insertions(+), 3 deletions(-)
+
+--- 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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 s
+ 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:
projects / thirdparty / kernel / stable-queue.git / commitdiff
