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Commit cf5c2e54 authored by Kevin Hao's avatar Kevin Hao Committed by Benjamin Herrenschmidt
Browse files

powerpc/math-emu: Remove the dead code in math.c 



The math.c is only built when CONFIG_MATH_EMULATION is enabled.
So we would never get into the case that CONFIG_MATH_EMULATION
is not defined in this file.

Signed-off-by: default avatarKevin Hao <haokexin@gmail.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 8a05dd85

arch/powerpc/math-emu/math.c

+0 −42
Original line number Diff line number Diff line
@@ -231,47 +231,6 @@ do_mathemu(struct pt_regs *regs) 
	if (get_user(insn, (u32 *)pc))

		return -EFAULT;



#ifndef CONFIG_MATH_EMULATION

	switch (insn >> 26) {

	case LFD:

		idx = (insn >> 16) & 0x1f;

		sdisp = (insn & 0xffff);

		op0 = (void *)&current->thread.TS_FPR((insn >> 21) & 0x1f);

		op1 = (void *)((idx ? regs->gpr[idx] : 0) + sdisp);

		lfd(op0, op1, op2, op3);

		break;

	case LFDU:

		idx = (insn >> 16) & 0x1f;

		sdisp = (insn & 0xffff);

		op0 = (void *)&current->thread.TS_FPR((insn >> 21) & 0x1f);

		op1 = (void *)((idx ? regs->gpr[idx] : 0) + sdisp);

		lfd(op0, op1, op2, op3);

		regs->gpr[idx] = (unsigned long)op1;

		break;

	case STFD:

		idx = (insn >> 16) & 0x1f;

		sdisp = (insn & 0xffff);

		op0 = (void *)&current->thread.TS_FPR((insn >> 21) & 0x1f);

		op1 = (void *)((idx ? regs->gpr[idx] : 0) + sdisp);

		stfd(op0, op1, op2, op3);

		break;

	case STFDU:

		idx = (insn >> 16) & 0x1f;

		sdisp = (insn & 0xffff);

		op0 = (void *)&current->thread.TS_FPR((insn >> 21) & 0x1f);

		op1 = (void *)((idx ? regs->gpr[idx] : 0) + sdisp);

		stfd(op0, op1, op2, op3);

		regs->gpr[idx] = (unsigned long)op1;

		break;

	case OP63:

		op0 = (void *)&current->thread.TS_FPR((insn >> 21) & 0x1f);

		op1 = (void *)&current->thread.TS_FPR((insn >> 11) & 0x1f);

		fmr(op0, op1, op2, op3);

		break;

	default:

		goto illegal;

	}

#else /* CONFIG_MATH_EMULATION */

	switch (insn >> 26) {

	case LFS:	func = lfs;	type = D;	break;

	case LFSU:	func = lfs;	type = DU;	break;
@@ -485,7 +444,6 @@ do_mathemu(struct pt_regs *regs) 
	default:

		break;

	}

#endif /* CONFIG_MATH_EMULATION */



	regs->nip += 4;

	return 0;