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MIPS: KVM: Remove dead code in CP0 emulation 

The code to check whether rd > MIPS_CP0_DESAVE is dead code, since
MIPS_CP0_DESAVE = 31 and rd is already masked with 0x1f. Remove it.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
James Hogan 2014-03-14 13:06:10 +00:00 committed by Paolo Bonzini
parent 26f4f3b578
commit 36c9549460
1 changed files with 0 additions and 7 deletions
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7
arch/mips/kvm/kvm_mips_emul.c
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@ -436,13 +436,6 @@ kvm_mips_emulate_CP0(uint32_t inst, uint32_t *opc, uint32_t cause,
sel = inst & 0x7;
co_bit = (inst >> 25) & 1;
/* Verify that the register is valid */
if (rd > MIPS_CP0_DESAVE) {
printk("Invalid rd: %d\n", rd);
er = EMULATE_FAIL;
goto done;
}
if (co_bit) {
op = (inst) & 0xff;