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authorJames Hogan <james.hogan@imgtec.com>2014-03-14 17:06:10 +0400
committerPaolo Bonzini <pbonzini@redhat.com>2014-03-19 20:01:50 +0400
commit36c95494609cd6d2541c08e806b4d6bc401bc53f (patch)
tree59998fbf13a6b52dd58cd90fd053e62139bbfea8 /arch/mips/kvm
parent26f4f3b57862642296a2e613674e7f00d91c022f (diff)
downloadlinux-36c95494609cd6d2541c08e806b4d6bc401bc53f.tar.xz
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>
Diffstat (limited to 'arch/mips/kvm')
-rw-r--r--arch/mips/kvm/kvm_mips_emul.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/mips/kvm/kvm_mips_emul.c b/arch/mips/kvm/kvm_mips_emul.c
index d562572c2efc..e3fec99941a7 100644
--- a/arch/mips/kvm/kvm_mips_emul.c
+++ b/arch/mips/kvm/kvm_mips_emul.c
@@ -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;