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sh: kernel: disassemble: Mark expected switch fall-throughs

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Remove logically dead code and mark switch cases where we are expecting
to fall through.

Fix the following warnings (Building: defconfig sh):

arch/sh/kernel/disassemble.c:478:8: warning: this statement may fall
through [-Wimplicit-fallthrough=]
arch/sh/kernel/disassemble.c:487:8: warning: this statement may fall
through [-Wimplicit-fallthrough=]
arch/sh/kernel/disassemble.c:496:8: warning: this statement may fall
through [-Wimplicit-fallthrough=]

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
This commit is contained in:
Gustavo A. R. Silva 2019-08-10 00:19:11 -05:00
parent 609488bc97
commit 54b13723f7
1 changed files with 2 additions and 3 deletions
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5
arch/sh/kernel/disassemble.c
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@ -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;