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authorEric Biggers <ebiggers@google.com>2019-05-20 09:53:58 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2019-05-30 15:28:41 +0800
commit3e56e168638b3e7147902c3b7257a57ea573a30e (patch)
tree96ee5f457b95e82591b9532228d5adeb10aa311d
parente590e1321c13ae736bd0e0da48a61a58ef084875 (diff)
download96b-common-3e56e168638b3e7147902c3b7257a57ea573a30e.tar.gz
crypto: cryptd - move kcrypto_wq into cryptd
kcrypto_wq is only used by cryptd, so move it into cryptd.c and change the workqueue name from "crypto" to "cryptd". Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/Kconfig5
-rw-r--r--crypto/Makefile2
-rw-r--r--crypto/cryptd.c24
-rw-r--r--crypto/crypto_wq.c40
-rw-r--r--drivers/crypto/cavium/cpt/cptvf_algs.c1
-rw-r--r--include/crypto/crypto_wq.h8
6 files changed, 19 insertions, 61 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 5350aa9368ec..9cdd92520f00 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -61,7 +61,6 @@ config CRYPTO_BLKCIPHER2
tristate
select CRYPTO_ALGAPI2
select CRYPTO_RNG2
- select CRYPTO_WORKQUEUE
config CRYPTO_HASH
tristate
@@ -183,15 +182,11 @@ config CRYPTO_PCRYPT
This converts an arbitrary crypto algorithm into a parallel
algorithm that executes in kernel threads.
-config CRYPTO_WORKQUEUE
- tristate
-
config CRYPTO_CRYPTD
tristate "Software async crypto daemon"
select CRYPTO_BLKCIPHER
select CRYPTO_HASH
select CRYPTO_MANAGER
- select CRYPTO_WORKQUEUE
help
This is a generic software asynchronous crypto daemon that
converts an arbitrary synchronous software crypto algorithm
diff --git a/crypto/Makefile b/crypto/Makefile
index 266a4cdbb9e2..2adf06b178e9 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -6,8 +6,6 @@
obj-$(CONFIG_CRYPTO) += crypto.o
crypto-y := api.o cipher.o compress.o memneq.o
-obj-$(CONFIG_CRYPTO_WORKQUEUE) += crypto_wq.o
-
obj-$(CONFIG_CRYPTO_ENGINE) += crypto_engine.o
obj-$(CONFIG_CRYPTO_FIPS) += fips.o
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index b3bb99390ae7..1bf777b76512 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -21,7 +21,6 @@
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/cryptd.h>
-#include <crypto/crypto_wq.h>
#include <linux/atomic.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -31,11 +30,14 @@
#include <linux/scatterlist.h>
#include <linux/sched.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
static unsigned int cryptd_max_cpu_qlen = 1000;
module_param(cryptd_max_cpu_qlen, uint, 0);
MODULE_PARM_DESC(cryptd_max_cpu_qlen, "Set cryptd Max queue depth");
+static struct workqueue_struct *cryptd_wq;
+
struct cryptd_cpu_queue {
struct crypto_queue queue;
struct work_struct work;
@@ -141,7 +143,7 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue,
if (err == -ENOSPC)
goto out_put_cpu;
- queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
+ queue_work_on(cpu, cryptd_wq, &cpu_queue->work);
if (!atomic_read(refcnt))
goto out_put_cpu;
@@ -184,7 +186,7 @@ static void cryptd_queue_worker(struct work_struct *work)
req->complete(req, 0);
if (cpu_queue->queue.qlen)
- queue_work(kcrypto_wq, &cpu_queue->work);
+ queue_work(cryptd_wq, &cpu_queue->work);
}
static inline struct cryptd_queue *cryptd_get_queue(struct crypto_tfm *tfm)
@@ -1123,19 +1125,31 @@ static int __init cryptd_init(void)
{
int err;
+ cryptd_wq = alloc_workqueue("cryptd", WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE,
+ 1);
+ if (!cryptd_wq)
+ return -ENOMEM;
+
err = cryptd_init_queue(&queue, cryptd_max_cpu_qlen);
if (err)
- return err;
+ goto err_destroy_wq;
err = crypto_register_template(&cryptd_tmpl);
if (err)
- cryptd_fini_queue(&queue);
+ goto err_fini_queue;
+ return 0;
+
+err_fini_queue:
+ cryptd_fini_queue(&queue);
+err_destroy_wq:
+ destroy_workqueue(cryptd_wq);
return err;
}
static void __exit cryptd_exit(void)
{
+ destroy_workqueue(cryptd_wq);
cryptd_fini_queue(&queue);
crypto_unregister_template(&cryptd_tmpl);
}
diff --git a/crypto/crypto_wq.c b/crypto/crypto_wq.c
deleted file mode 100644
index 2f1b8d12952a..000000000000
--- a/crypto/crypto_wq.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Workqueue for crypto subsystem
- *
- * Copyright (c) 2009 Intel Corp.
- * Author: Huang Ying <ying.huang@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <linux/workqueue.h>
-#include <linux/module.h>
-#include <crypto/algapi.h>
-#include <crypto/crypto_wq.h>
-
-struct workqueue_struct *kcrypto_wq;
-EXPORT_SYMBOL_GPL(kcrypto_wq);
-
-static int __init crypto_wq_init(void)
-{
- kcrypto_wq = alloc_workqueue("crypto",
- WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);
- if (unlikely(!kcrypto_wq))
- return -ENOMEM;
- return 0;
-}
-
-static void __exit crypto_wq_exit(void)
-{
- destroy_workqueue(kcrypto_wq);
-}
-
-subsys_initcall(crypto_wq_init);
-module_exit(crypto_wq_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Workqueue for crypto subsystem");
diff --git a/drivers/crypto/cavium/cpt/cptvf_algs.c b/drivers/crypto/cavium/cpt/cptvf_algs.c
index 9810ad8ac519..f6b0c9df12ed 100644
--- a/drivers/crypto/cavium/cpt/cptvf_algs.c
+++ b/drivers/crypto/cavium/cpt/cptvf_algs.c
@@ -10,7 +10,6 @@
#include <crypto/aes.h>
#include <crypto/algapi.h>
#include <crypto/authenc.h>
-#include <crypto/crypto_wq.h>
#include <crypto/des.h>
#include <crypto/xts.h>
#include <linux/crypto.h>
diff --git a/include/crypto/crypto_wq.h b/include/crypto/crypto_wq.h
deleted file mode 100644
index 23114746ac08..000000000000
--- a/include/crypto/crypto_wq.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef CRYPTO_WQ_H
-#define CRYPTO_WQ_H
-
-#include <linux/workqueue.h>
-
-extern struct workqueue_struct *kcrypto_wq;
-#endif