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crypto: engine - remove {prepare,unprepare}_crypt_hardware callbacks

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The {prepare,unprepare}_crypt_hardware callbacks were added back in 2016
by commit 735d37b542 ("crypto: engine - Introduce the block request
crypto engine framework"), but they were never implemented by any driver.
Remove them as they are unused.

Since the 'engine->idling' and 'was_busy' flags are no longer needed,
remove them as well.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ovidiu Panait
2025-07-11 21:29:32 +03:00
committed by Herbert Xu
parent c470ffa6f4
commit 5eb32430df
3 changed files with 1 additions and 46 deletions
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11
include/crypto/internal/engine.h
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@@ -21,7 +21,6 @@ struct device;
/*
* struct crypto_engine - crypto hardware engine
* @name: the engine name
* @idling: the engine is entering idle state
* @busy: request pump is busy
* @running: the engine is on working
* @retry_support: indication that the hardware allows re-execution
@@ -31,12 +30,6 @@ struct device;
* @list: link with the global crypto engine list
* @queue_lock: spinlock to synchronise access to request queue
* @queue: the crypto queue of the engine
* @prepare_crypt_hardware: a request will soon arrive from the queue
* so the subsystem requests the driver to prepare the hardware
* by issuing this call
* @unprepare_crypt_hardware: there are currently no more requests on the
* queue so the subsystem notifies the driver that it may relax the
* hardware by issuing this call
* @kworker: kthread worker struct for request pump
* @pump_requests: work struct for scheduling work to the request pump
* @priv_data: the engine private data
@@ -44,7 +37,6 @@ struct device;
*/
struct crypto_engine {
char name[ENGINE_NAME_LEN];
bool idling;
bool busy;
bool running;
@@ -56,9 +48,6 @@ struct crypto_engine {
struct crypto_queue queue;
struct device *dev;
int (*prepare_crypt_hardware)(struct crypto_engine *engine);
int (*unprepare_crypt_hardware)(struct crypto_engine *engine);
struct kthread_worker *kworker;
struct kthread_work pump_requests;