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rng: remove the unused request cancellation code 

rng_backend_cancel_requests had no callers and none of the code
deleted in this commit ever ran.

Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Message-Id: <1456994238-9585-2-git-send-email-lprosek@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
This commit is contained in:
Ladi Prosek 2016-03-03 09:37:15 +01:00 committed by Amit Shah
parent 750cf86932
commit 3c52ddcdc5
3 changed files with 0 additions and 32 deletions
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12
backends/rng-egd.c
View File

@ -125,17 +125,6 @@ static void rng_egd_free_requests(RngEgd *s)
s->requests = NULL; s->requests = NULL;
} }
static void rng_egd_cancel_requests(RngBackend *b)
{
RngEgd *s = RNG_EGD(b);
/* We simply delete the list of pending requests. If there is data in the
* queue waiting to be read, this is okay, because there will always be
* more data than we requested originally
*/
rng_egd_free_requests(s);
}
static void rng_egd_opened(RngBackend *b, Error **errp) static void rng_egd_opened(RngBackend *b, Error **errp)
{ {
RngEgd *s = RNG_EGD(b); RngEgd *s = RNG_EGD(b);
@ -213,7 +202,6 @@ static void rng_egd_class_init(ObjectClass *klass, void *data)
RngBackendClass *rbc = RNG_BACKEND_CLASS(klass); RngBackendClass *rbc = RNG_BACKEND_CLASS(klass);
rbc->request_entropy = rng_egd_request_entropy; rbc->request_entropy = rng_egd_request_entropy;
rbc->cancel_requests = rng_egd_cancel_requests;
rbc->opened = rng_egd_opened; rbc->opened = rng_egd_opened;
} }

9
backends/rng.c
View File

@ -26,15 +26,6 @@ void rng_backend_request_entropy(RngBackend *s, size_t size,
} }
} }
void rng_backend_cancel_requests(RngBackend *s)
{
RngBackendClass *k = RNG_BACKEND_GET_CLASS(s);
if (k->cancel_requests) {
k->cancel_requests(s);
}
}
static bool rng_backend_prop_get_opened(Object *obj, Error **errp) static bool rng_backend_prop_get_opened(Object *obj, Error **errp)
{ {
RngBackend *s = RNG_BACKEND(obj); RngBackend *s = RNG_BACKEND(obj);

11
include/sysemu/rng.h
View File

@ -37,7 +37,6 @@ struct RngBackendClass
void (*request_entropy)(RngBackend *s, size_t size, void (*request_entropy)(RngBackend *s, size_t size,
EntropyReceiveFunc *receive_entropy, void *opaque); EntropyReceiveFunc *receive_entropy, void *opaque);
void (*cancel_requests)(RngBackend *s);
void (*opened)(RngBackend *s, Error **errp); void (*opened)(RngBackend *s, Error **errp);
}; };
@ -68,14 +67,4 @@ struct RngBackend
void rng_backend_request_entropy(RngBackend *s, size_t size, void rng_backend_request_entropy(RngBackend *s, size_t size,
EntropyReceiveFunc *receive_entropy, EntropyReceiveFunc *receive_entropy,
void *opaque); void *opaque);
/**
* rng_backend_cancel_requests:
* @s: the backend to cancel all pending requests in
*
* Cancels all pending requests submitted by @rng_backend_request_entropy. This
* should be used by a device during reset or in preparation for live migration
* to stop tracking any request.
*/
void rng_backend_cancel_requests(RngBackend *s);
#endif #endif