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    Subject[PATCH 02/10] paravirt: remove unused function paravirt_disable_iospace()
    Date
    paravirt_disable_iospace() isn't used anywhere. Remove it.

    Signed-off-by: Juergen Gross <jgross@suse.com>
    ---
    arch/x86/include/asm/paravirt_types.h | 2 --
    arch/x86/kernel/paravirt.c | 19 -------------------
    2 files changed, 21 deletions(-)

    diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
    index 7465d6fe336f..7a5de42cb465 100644
    --- a/arch/x86/include/asm/paravirt_types.h
    +++ b/arch/x86/include/asm/paravirt_types.h
    @@ -396,8 +396,6 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
    unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
    unsigned long addr, unsigned len);

    -int paravirt_disable_iospace(void);
    -
    /*
    * This generates an indirect call based on the operation type number.
    * The type number, computed in PARAVIRT_PATCH, is derived from the
    diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
    index 3586996fc50d..b8b23b3f24c2 100644
    --- a/arch/x86/kernel/paravirt.c
    +++ b/arch/x86/kernel/paravirt.c
    @@ -207,25 +207,6 @@ static u64 native_steal_clock(int cpu)
    extern void native_iret(void);
    extern void native_usergs_sysret64(void);

    -static struct resource reserve_ioports = {
    - .start = 0,
    - .end = IO_SPACE_LIMIT,
    - .name = "paravirt-ioport",
    - .flags = IORESOURCE_IO | IORESOURCE_BUSY,
    -};
    -
    -/*
    - * Reserve the whole legacy IO space to prevent any legacy drivers
    - * from wasting time probing for their hardware. This is a fairly
    - * brute-force approach to disabling all non-virtual drivers.
    - *
    - * Note that this must be called very early to have any effect.
    - */
    -int paravirt_disable_iospace(void)
    -{
    - return request_resource(&ioport_resource, &reserve_ioports);
    -}
    -
    static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;

    static inline void enter_lazy(enum paravirt_lazy_mode mode)
    --
    2.12.0
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