KVM: x86/emulate: Remove unused "tss_selector" of task_switch_{16, 32}()

The "u16 tss_selector" parameter of task_switch_{16, 32}()
is not used, so remove it. No functional change intended.

Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
Message-Id: <20220125095909.38122-16-cloudliang@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 5c5a8fd..b7990de 100644 (file)
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3012,8 +3012,7 @@ static int load_state_from_tss16(struct x86_emulate_ctxt *ctxt,
        return X86EMUL_CONTINUE;
 }
 
-static int task_switch_16(struct x86_emulate_ctxt *ctxt,
-                         u16 tss_selector, u16 old_tss_sel,
+static int task_switch_16(struct x86_emulate_ctxt *ctxt, u16 old_tss_sel,
                          ulong old_tss_base, struct desc_struct *new_desc)
 {
        struct tss_segment_16 tss_seg;
@@ -3151,8 +3150,7 @@ static int load_state_from_tss32(struct x86_emulate_ctxt *ctxt,
        return ret;
 }
 
-static int task_switch_32(struct x86_emulate_ctxt *ctxt,
-                         u16 tss_selector, u16 old_tss_sel,
+static int task_switch_32(struct x86_emulate_ctxt *ctxt, u16 old_tss_sel,
                          ulong old_tss_base, struct desc_struct *new_desc)
 {
        struct tss_segment_32 tss_seg;
@@ -3260,10 +3258,9 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt,
                old_tss_sel = 0xffff;
 
        if (next_tss_desc.type & 8)
-               ret = task_switch_32(ctxt, tss_selector, old_tss_sel,
-                                    old_tss_base, &next_tss_desc);
+               ret = task_switch_32(ctxt, old_tss_sel, old_tss_base, &next_tss_desc);
        else
-               ret = task_switch_16(ctxt, tss_selector, old_tss_sel,
+               ret = task_switch_16(ctxt, old_tss_sel,
                                     old_tss_base, &next_tss_desc);
        if (ret != X86EMUL_CONTINUE)
                return ret;