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-rw-r--r--recipes-kernel/cryptodev/sdk_patches/0032-avoid-calls-to-kmalloc-on-hotpaths.patch220
1 files changed, 0 insertions, 220 deletions
diff --git a/recipes-kernel/cryptodev/sdk_patches/0032-avoid-calls-to-kmalloc-on-hotpaths.patch b/recipes-kernel/cryptodev/sdk_patches/0032-avoid-calls-to-kmalloc-on-hotpaths.patch
deleted file mode 100644
index 2aa5810b..00000000
--- a/recipes-kernel/cryptodev/sdk_patches/0032-avoid-calls-to-kmalloc-on-hotpaths.patch
+++ /dev/null
@@ -1,220 +0,0 @@
-From 9b513838035c35fd3706bb824edd17d705641439 Mon Sep 17 00:00:00 2001
-From: Cristian Stoica <cristian.stoica@nxp.com>
-Date: Tue, 12 Jan 2016 15:13:15 +0200
-Subject: [PATCH 32/38] avoid calls to kmalloc on hotpaths
-
-We replace a pointer to a small structure with the structure itself to
-avoid unnecessary dynamic allocations at runtime. The embedding
-structure is itself dynamically allocated and we get a slight increase
-in performance from elimination of unnecessary code.
-
-Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com>
----
- cryptlib.c | 42 +++++++++++++-----------------------------
- cryptlib.h | 14 +++++++-------
- 2 files changed, 20 insertions(+), 36 deletions(-)
-
-diff --git a/cryptlib.c b/cryptlib.c
-index 4fd29eb..5972fc2 100644
---- a/cryptlib.c
-+++ b/cryptlib.c
-@@ -178,13 +178,7 @@ int cryptodev_cipher_init(struct cipher_data *out, const char *alg_name,
- out->stream = stream;
- out->aead = aead;
-
-- out->async.result = kzalloc(sizeof(*out->async.result), GFP_KERNEL);
-- if (unlikely(!out->async.result)) {
-- ret = -ENOMEM;
-- goto error;
-- }
--
-- init_completion(&out->async.result->completion);
-+ init_completion(&out->async.result.completion);
-
- if (aead == 0) {
- out->async.request = ablkcipher_request_alloc(out->async.s, GFP_KERNEL);
-@@ -195,7 +189,7 @@ int cryptodev_cipher_init(struct cipher_data *out, const char *alg_name,
- }
-
- ablkcipher_request_set_callback(out->async.request, 0,
-- cryptodev_complete, out->async.result);
-+ cryptodev_complete, &out->async.result);
- } else {
- out->async.arequest = aead_request_alloc(out->async.as, GFP_KERNEL);
- if (unlikely(!out->async.arequest)) {
-@@ -205,7 +199,7 @@ int cryptodev_cipher_init(struct cipher_data *out, const char *alg_name,
- }
-
- aead_request_set_callback(out->async.arequest, 0,
-- cryptodev_complete, out->async.result);
-+ cryptodev_complete, &out->async.result);
- }
-
- out->init = 1;
-@@ -222,7 +216,6 @@ error:
- if (out->async.as)
- crypto_free_aead(out->async.as);
- }
-- kfree(out->async.result);
-
- return ret;
- }
-@@ -242,7 +235,6 @@ void cryptodev_cipher_deinit(struct cipher_data *cdata)
- crypto_free_aead(cdata->async.as);
- }
-
-- kfree(cdata->async.result);
- cdata->init = 0;
- }
- }
-@@ -279,7 +271,7 @@ ssize_t cryptodev_cipher_encrypt(struct cipher_data *cdata,
- {
- int ret;
-
-- reinit_completion(&cdata->async.result->completion);
-+ reinit_completion(&cdata->async.result.completion);
-
- if (cdata->aead == 0) {
- ablkcipher_request_set_crypt(cdata->async.request,
-@@ -293,7 +285,7 @@ ssize_t cryptodev_cipher_encrypt(struct cipher_data *cdata,
- ret = crypto_aead_encrypt(cdata->async.arequest);
- }
-
-- return waitfor(cdata->async.result, ret);
-+ return waitfor(&cdata->async.result, ret);
- }
-
- ssize_t cryptodev_cipher_decrypt(struct cipher_data *cdata,
-@@ -302,7 +294,7 @@ ssize_t cryptodev_cipher_decrypt(struct cipher_data *cdata,
- {
- int ret;
-
-- reinit_completion(&cdata->async.result->completion);
-+ reinit_completion(&cdata->async.result.completion);
- if (cdata->aead == 0) {
- ablkcipher_request_set_crypt(cdata->async.request,
- (struct scatterlist *)src, dst,
-@@ -315,7 +307,7 @@ ssize_t cryptodev_cipher_decrypt(struct cipher_data *cdata,
- ret = crypto_aead_decrypt(cdata->async.arequest);
- }
-
-- return waitfor(cdata->async.result, ret);
-+ return waitfor(&cdata->async.result, ret);
- }
-
- /* Hash functions */
-@@ -345,13 +337,7 @@ int cryptodev_hash_init(struct hash_data *hdata, const char *alg_name,
- hdata->digestsize = crypto_ahash_digestsize(hdata->async.s);
- hdata->alignmask = crypto_ahash_alignmask(hdata->async.s);
-
-- hdata->async.result = kzalloc(sizeof(*hdata->async.result), GFP_KERNEL);
-- if (unlikely(!hdata->async.result)) {
-- ret = -ENOMEM;
-- goto error;
-- }
--
-- init_completion(&hdata->async.result->completion);
-+ init_completion(&hdata->async.result.completion);
-
- hdata->async.request = ahash_request_alloc(hdata->async.s, GFP_KERNEL);
- if (unlikely(!hdata->async.request)) {
-@@ -361,12 +347,11 @@ int cryptodev_hash_init(struct hash_data *hdata, const char *alg_name,
- }
-
- ahash_request_set_callback(hdata->async.request, 0,
-- cryptodev_complete, hdata->async.result);
-+ cryptodev_complete, &hdata->async.result);
- hdata->init = 1;
- return 0;
-
- error:
-- kfree(hdata->async.result);
- crypto_free_ahash(hdata->async.s);
- return ret;
- }
-@@ -376,7 +361,6 @@ void cryptodev_hash_deinit(struct hash_data *hdata)
- if (hdata->init) {
- if (hdata->async.request)
- ahash_request_free(hdata->async.request);
-- kfree(hdata->async.result);
- if (hdata->async.s)
- crypto_free_ahash(hdata->async.s);
- hdata->init = 0;
-@@ -402,24 +386,24 @@ ssize_t cryptodev_hash_update(struct hash_data *hdata,
- {
- int ret;
-
-- reinit_completion(&hdata->async.result->completion);
-+ reinit_completion(&hdata->async.result.completion);
- ahash_request_set_crypt(hdata->async.request, sg, NULL, len);
-
- ret = crypto_ahash_update(hdata->async.request);
-
-- return waitfor(hdata->async.result, ret);
-+ return waitfor(&hdata->async.result, ret);
- }
-
- int cryptodev_hash_final(struct hash_data *hdata, void *output)
- {
- int ret;
-
-- reinit_completion(&hdata->async.result->completion);
-+ reinit_completion(&hdata->async.result.completion);
- ahash_request_set_crypt(hdata->async.request, NULL, output, 0);
-
- ret = crypto_ahash_final(hdata->async.request);
-
-- return waitfor(hdata->async.result, ret);
-+ return waitfor(&hdata->async.result, ret);
- }
-
- int cryptodev_pkc_offload(struct cryptodev_pkc *pkc)
-diff --git a/cryptlib.h b/cryptlib.h
-index e1c4e3e..d8e8046 100644
---- a/cryptlib.h
-+++ b/cryptlib.h
-@@ -6,6 +6,11 @@
-
- #include <linux/version.h>
-
-+struct cryptodev_result {
-+ struct completion completion;
-+ int err;
-+};
-+
- struct cipher_data {
- int init; /* 0 uninitialized */
- int blocksize;
-@@ -22,7 +27,7 @@ struct cipher_data {
- struct crypto_aead *as;
- struct aead_request *arequest;
-
-- struct cryptodev_result *result;
-+ struct cryptodev_result result;
- uint8_t iv[EALG_MAX_BLOCK_LEN];
- } async;
- };
-@@ -85,7 +90,7 @@ struct hash_data {
- int alignmask;
- struct {
- struct crypto_ahash *s;
-- struct cryptodev_result *result;
-+ struct cryptodev_result result;
- struct ahash_request *request;
- } async;
- };
-@@ -104,11 +109,6 @@ enum offload_type {
- ASYNCHRONOUS
- };
-
--struct cryptodev_result {
-- struct completion completion;
-- int err;
--};
--
- struct cryptodev_pkc {
- struct list_head list; /* To maintain the Jobs in completed
- cryptodev lists */
---
-2.7.0
-
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-25 05:47:33 +0000