Messages in this thread | | | Date | Tue, 25 Jan 2022 17:29:50 +0100 | Subject | Re: [PATCH 15/19] KVM: x86/emulate: Remove unused "ctxt" of task_switch_{16, 32}() | From | Paolo Bonzini <> |
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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;
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