linux-kernel - Fwd: [PATCH] KVM: x86: remove unneeded variable

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Message-ID: <a2510fb15553a294236646321cf1b3a4@208suo.com>
Date:   Wed, 14 Jun 2023 11:30:16 +0800
From:   baomingtong001@...suo.com
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        ave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Fwd: [PATCH] KVM: x86: remove unneeded variable

fix the following coccicheck warning:

arch/x86/kvm/emulate.c:1315:5-7: Unneeded variable: "rc".Return 
"X86EMUL_CONTINUE".
arch/x86/kvm/emulate.c:4559:5-7: Unneeded variable: "rc".Return 
"X86EMUL_CONTINUE".
arch/x86/kvm/emulate.c:1180:5-7: Unneeded variable: "rc".Return 
"X86EMUL_CONTINUE".

Signed-off-by: Mingtong Bao <baomingtong001@...suo.com>
---
  arch/x86/kvm/emulate.c | 15 ++++++---------
  1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 936a397a08cd..7a7e29e4e203 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1177,7 +1177,6 @@ static int decode_modrm(struct x86_emulate_ctxt 
*ctxt,
  {
      u8 sib;
      int index_reg, base_reg, scale;
-    int rc = X86EMUL_CONTINUE;
      ulong modrm_ea = 0;

      ctxt->modrm_reg = ((ctxt->rex_prefix << 1) & 8); /* REX.R */
@@ -1199,16 +1198,16 @@ static int decode_modrm(struct x86_emulate_ctxt 
*ctxt,
              op->bytes = 16;
              op->addr.xmm = ctxt->modrm_rm;
              kvm_read_sse_reg(ctxt->modrm_rm, &op->vec_val);
-            return rc;
+            return X86EMUL_CONTINUE;
          }
          if (ctxt->d & Mmx) {
              op->type = OP_MM;
              op->bytes = 8;
              op->addr.mm = ctxt->modrm_rm & 7;
-            return rc;
+            return X86EMUL_CONTINUE;
          }
          fetch_register_operand(op);
-        return rc;
+        return X86EMUL_CONTINUE;
      }

      op->type = OP_MEM;
@@ -1306,13 +1305,12 @@ static int decode_modrm(struct x86_emulate_ctxt 
*ctxt,
          ctxt->memop.addr.mem.ea = (u32)ctxt->memop.addr.mem.ea;

  done:
-    return rc;
+    return X86EMUL_CONTINUE;
  }

  static int decode_abs(struct x86_emulate_ctxt *ctxt,
                struct operand *op)
  {
-    int rc = X86EMUL_CONTINUE;

      op->type = OP_MEM;
      switch (ctxt->ad_bytes) {
@@ -1327,7 +1325,7 @@ static int decode_abs(struct x86_emulate_ctxt 
*ctxt,
          break;
      }
  done:
-    return rc;
+    return X86EMUL_CONTINUE;
  }

  static void fetch_bit_operand(struct x86_emulate_ctxt *ctxt)
@@ -4556,7 +4554,6 @@ static unsigned imm_size(struct x86_emulate_ctxt 
*ctxt)
  static int decode_imm(struct x86_emulate_ctxt *ctxt, struct operand 
*op,
                unsigned size, bool sign_extension)
  {
-    int rc = X86EMUL_CONTINUE;

      op->type = OP_IMM;
      op->bytes = size;
@@ -4590,7 +4587,7 @@ static int decode_imm(struct x86_emulate_ctxt 
*ctxt, struct operand *op,
          }
      }
  done:
-    return rc;
+    return X86EMUL_CONTINUE;
  }

  static int decode_operand(struct x86_emulate_ctxt *ctxt, struct operand 
*op,