Wimplicit-fallthrough patches for 5.3-rc5

Hi Linus,
 
 Please, pull the following patches that fix sh mainline builds:
 
  - Fix fall-through warning in sh.
  - Fix missing break bug in sh (this is a 10-year-old bug).
 
 Currently, mainline builds for sh are broken. These patches fix that.
 
 Thanks
 
 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
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Merge tag 'Wimplicit-fallthrough-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull fallthrough fixes from Gustavo A. R. Silva:
 "Fix sh mainline builds:

   - Fix fall-through warning in sh.

   - Fix missing break bug in sh (this is a 10-year-old bug)

  Currently, mainline builds for sh are broken. These patches fix that"

* tag 'Wimplicit-fallthrough-5.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  sh: kernel: hw_breakpoint: Fix missing break in switch statement
  sh: kernel: disassemble: Mark expected switch fall-throughs

arch/sh/kernel/disassemble.c

@@ -475,8 +475,6 @@ static void print_sh_insn(u32 memaddr, u16 insn)
 				printk("dbr");
 				break;
 			case FD_REG_N:
-				if (0)
-					goto d_reg_n;
 			case F_REG_N:
 				printk("fr%d", rn);
 				break;
@@ -488,7 +486,7 @@ static void print_sh_insn(u32 memaddr, u16 insn)
 					printk("xd%d", rn & ~1);
 					break;
 				}
-			d_reg_n:
+				/* else, fall through */
 			case D_REG_N:
 				printk("dr%d", rn);
 				break;
@@ -497,6 +495,7 @@ static void print_sh_insn(u32 memaddr, u16 insn)
 					printk("xd%d", rm & ~1);
 					break;
 				}
+				/* else, fall through */
 			case D_REG_M:
 				printk("dr%d", rm);
 				break;

arch/sh/kernel/hw_breakpoint.c

@@ -157,6 +157,7 @@ int arch_bp_generic_fields(int sh_len, int sh_type,
 	switch (sh_type) {
 	case SH_BREAKPOINT_READ:
 		*gen_type = HW_BREAKPOINT_R;
+		break;
 	case SH_BREAKPOINT_WRITE:
 		*gen_type = HW_BREAKPOINT_W;
 		break;