diff mbox series

[15/19] KVM: x86/emulate: Remove unused "ctxt" of task_switch_{16, 32}()

Message ID 20220125095909.38122-16-cloudliang@tencent.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86: Bulk removal of unused function parameters | expand

Commit Message

Jinrong Liang Jan. 25, 2022, 9:59 a.m. UTC
From: Jinrong Liang <cloudliang@tencent.com>

The "struct x86_emulate_ctxt *ctxt" parameter of task_switch_{16, 32}()
is not used, so remove it. No functional change intended.

Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
---
 arch/x86/kvm/emulate.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

Comments

Paolo Bonzini Jan. 25, 2022, 4:29 p.m. UTC | #1
On 1/25/22 10:59, Jinrong Liang wrote:
> From: Jinrong Liang <cloudliang@tencent.com>
> 
> The "struct x86_emulate_ctxt *ctxt" parameter of task_switch_{16, 32}()
> is not used, so remove it. No functional change intended.

This is actually removing tss_selector, but it's okay.

Paolo

> Signed-off-by: Jinrong Liang <cloudliang@tencent.com>
> ---
>   arch/x86/kvm/emulate.c | 11 ++++-------
>   1 file changed, 4 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
> index c2d9fe6449c2..9e4a00d04532 100644
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -3020,8 +3020,7 @@ 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;
> @@ -3159,8 +3158,7 @@ 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;
> @@ -3268,10 +3266,9 @@ 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;
diff mbox series

Patch

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index c2d9fe6449c2..9e4a00d04532 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3020,8 +3020,7 @@  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;
@@ -3159,8 +3158,7 @@  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;
@@ -3268,10 +3266,9 @@  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;