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Commit ea0269bc authored by Stephen Hemminger's avatar Stephen Hemminger Committed by Marcelo Tosatti
Browse files

kvm: remove dead code 



The function kvm_io_bus_read_cookie is defined but never used
in current in-tree code.

Signed-off-by: default avatarStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
parent 7940876e

include/linux/kvm_host.h

+0 −2
Original line number Diff line number Diff line
@@ -172,8 +172,6 @@ int kvm_io_bus_write_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, 
			    int len, const void *val, long cookie);

int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, int len,

		    void *val);

int kvm_io_bus_read_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,

			   int len, void *val, long cookie);

int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,

			    int len, struct kvm_io_device *dev);

int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,

virt/kvm/kvm_main.c

+0 −27
Original line number Diff line number Diff line
@@ -2934,33 +2934,6 @@ int kvm_io_bus_read(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr, 
	return r < 0 ? r : 0;

}



/* kvm_io_bus_read_cookie - called under kvm->slots_lock */

int kvm_io_bus_read_cookie(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,

			   int len, void *val, long cookie)

{

	struct kvm_io_bus *bus;

	struct kvm_io_range range;



	range = (struct kvm_io_range) {

		.addr = addr,

		.len = len,

	};



	bus = srcu_dereference(kvm->buses[bus_idx], &kvm->srcu);



	/* First try the device referenced by cookie. */

	if ((cookie >= 0) && (cookie < bus->dev_count) &&

	    (kvm_io_bus_cmp(&range, &bus->range[cookie]) == 0))

		if (!kvm_iodevice_read(bus->range[cookie].dev, addr, len,

				       val))

			return cookie;



	/*

	 * cookie contained garbage; fall back to search and return the

	 * correct cookie value.

	 */

	return __kvm_io_bus_read(bus, &range, val);

}



/* Caller must hold slots_lock. */

int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,