[PATCH 4/4] MIPS: KVM: Remove dead code in CP0 emulation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Gleb Natapov <gleb@xxxxxxxxxx>
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: Sanjay Lal <sanjayl@xxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
---
 arch/mips/kvm/kvm_mips_emul.c | 7 -------
 1 file changed, 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;
 
-- 
1.8.1.2



[Index of Archives]     [Linux MIPS Home]     [LKML Archive]     [Linux ARM Kernel]     [Linux ARM]     [Linux]     [Git]     [Yosemite News]     [Linux SCSI]     [Linux Hams]

  Powered by Linux