forked from Minki/linux
kvm: remove dead code
The function kvm_io_bus_read_cookie is defined but never used in current in-tree code. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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@ -172,8 +172,6 @@ int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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int len, const void *val, long cookie);
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int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,
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void *val);
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int kvm_io_bus_read_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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int len, void *val, long cookie);
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int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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int len, struct kvm_io_device *dev);
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int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
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@ -2934,33 +2934,6 @@ int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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return r < 0 ? r : 0;
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}
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/* kvm_io_bus_read_cookie - called under kvm->slots_lock */
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int kvm_io_bus_read_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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int len, void *val, long cookie)
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{
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struct kvm_io_bus *bus;
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struct kvm_io_range range;
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range = (struct kvm_io_range) {
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.addr = addr,
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.len = len,
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};
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bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);
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/* First try the device referenced by cookie. */
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if ((cookie >= 0) && (cookie < bus->dev_count) &&
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(kvm_io_bus_cmp(&range, &bus->range[cookie]) == 0))
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if (!kvm_iodevice_read(bus->range[cookie].dev, addr, len,
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val))
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return cookie;
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/*
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* cookie contained garbage; fall back to search and return the
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* correct cookie value.
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*/
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return __kvm_io_bus_read(bus, &range, val);
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}
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/* Caller must hold slots_lock. */
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int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
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