summaryrefslogtreecommitdiffstats
path: root/recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch
diff options
context:
space:
mode:
Diffstat (limited to 'recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch')
-rw-r--r--recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch238
1 files changed, 238 insertions, 0 deletions
diff --git a/recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch b/recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch
new file mode 100644
index 0000000..cfaabae
--- /dev/null
+++ b/recipes-kernel/cryptodev/sdk_patches/0007-RCU-stall-fixed-in-PKC-asynchronous-interface.patch
@@ -0,0 +1,238 @@
1From 00a8ac310a33767eac0a07e32597c1a6f467315f Mon Sep 17 00:00:00 2001
2From: Yashpal Dutta <yashpal.dutta@freescale.com>
3Date: Fri, 7 Mar 2014 08:49:15 +0545
4Subject: [PATCH 07/38] RCU stall fixed in PKC asynchronous interface
5
6Upstream-status: Pending
7
8Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
9---
10 ioctl.c | 23 +++++++++++------------
11 main.c | 43 +++++++++++++++++++++++++++----------------
12 2 files changed, 38 insertions(+), 28 deletions(-)
13
14diff --git a/ioctl.c b/ioctl.c
15index 1f0741a..e4e16a8 100644
16--- a/ioctl.c
17+++ b/ioctl.c
18@@ -108,10 +108,9 @@ void cryptodev_complete_asym(struct crypto_async_request *req, int err)
19 complete(&res->completion);
20 } else {
21 struct crypt_priv *pcr = pkc->priv;
22- unsigned long flags;
23- spin_lock_irqsave(&pcr->completion_lock, flags);
24+ spin_lock_bh(&pcr->completion_lock);
25 list_add_tail(&pkc->list, &pcr->asym_completed_list);
26- spin_unlock_irqrestore(&pcr->completion_lock, flags);
27+ spin_unlock_bh(&pcr->completion_lock);
28 /* wake for POLLIN */
29 wake_up_interruptible(&pcr->user_waiter);
30 }
31@@ -958,7 +957,7 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
32 case CIOCASYMFEAT:
33 return put_user(CRF_MOD_EXP_CRT | CRF_MOD_EXP | CRF_DSA_SIGN |
34 CRF_DSA_VERIFY | CRF_DH_COMPUTE_KEY |
35- CRF_DSA_GENERATE_KEY, p);
36+ CRF_DSA_GENERATE_KEY | CRF_DH_GENERATE_KEY, p);
37 case CRIOGET:
38 fd = clonefd(filp);
39 ret = put_user(fd, p);
40@@ -997,7 +996,7 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
41 case CIOCKEY:
42 {
43 struct cryptodev_pkc *pkc =
44- kzalloc(sizeof(struct cryptodev_pkc), GFP_KERNEL);
45+ kmalloc(sizeof(struct cryptodev_pkc), GFP_KERNEL);
46
47 if (!pkc)
48 return -ENOMEM;
49@@ -1053,7 +1052,7 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
50 case CIOCASYMASYNCRYPT:
51 {
52 struct cryptodev_pkc *pkc =
53- kzalloc(sizeof(struct cryptodev_pkc), GFP_KERNEL);
54+ kmalloc(sizeof(struct cryptodev_pkc), GFP_KERNEL);
55 ret = kop_from_user(&pkc->kop, arg);
56
57 if (unlikely(ret))
58@@ -1070,13 +1069,12 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
59 case CIOCASYMFETCHCOOKIE:
60 {
61 struct cryptodev_pkc *pkc;
62- unsigned long flags;
63 int i;
64 struct pkc_cookie_list_s cookie_list;
65
66- spin_lock_irqsave(&pcr->completion_lock, flags);
67 cookie_list.cookie_available = 0;
68 for (i = 0; i < MAX_COOKIES; i++) {
69+ spin_lock_bh(&pcr->completion_lock);
70 if (!list_empty(&pcr->asym_completed_list)) {
71 /* Run a loop in the list for upto elements
72 and copy their response back */
73@@ -1084,6 +1082,7 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
74 list_first_entry(&pcr->asym_completed_list,
75 struct cryptodev_pkc, list);
76 list_del(&pkc->list);
77+ spin_unlock_bh(&pcr->completion_lock);
78 ret = crypto_async_fetch_asym(pkc);
79 if (!ret) {
80 cookie_list.cookie_available++;
81@@ -1093,10 +1092,10 @@ cryptodev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg_)
82 }
83 kfree(pkc);
84 } else {
85+ spin_unlock_bh(&pcr->completion_lock);
86 break;
87 }
88 }
89- spin_unlock_irqrestore(&pcr->completion_lock, flags);
90
91 /* Reflect the updated request to user-space */
92 if (cookie_list.cookie_available)
93@@ -1386,14 +1385,13 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_)
94 case COMPAT_CIOCASYMFETCHCOOKIE:
95 {
96 struct cryptodev_pkc *pkc;
97- unsigned long flags;
98 int i = 0;
99 struct compat_pkc_cookie_list_s cookie_list;
100
101- spin_lock_irqsave(&pcr->completion_lock, flags);
102 cookie_list.cookie_available = 0;
103
104 for (i = 0; i < MAX_COOKIES; i++) {
105+ spin_lock_bh(&pcr->completion_lock);
106 if (!list_empty(&pcr->asym_completed_list)) {
107 /* Run a loop in the list for upto elements
108 and copy their response back */
109@@ -1401,6 +1399,7 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_)
110 list_first_entry(&pcr->asym_completed_list,
111 struct cryptodev_pkc, list);
112 list_del(&pkc->list);
113+ spin_unlock_bh(&pcr->completion_lock);
114 ret = crypto_async_fetch_asym(pkc);
115 if (!ret) {
116 cookie_list.cookie_available++;
117@@ -1409,10 +1408,10 @@ cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg_)
118 }
119 kfree(pkc);
120 } else {
121+ spin_unlock_bh(&pcr->completion_lock);
122 break;
123 }
124 }
125- spin_unlock_irqrestore(&pcr->completion_lock, flags);
126
127 /* Reflect the updated request to user-space */
128 if (cookie_list.cookie_available)
129diff --git a/main.c b/main.c
130index c901bc7..2747706 100644
131--- a/main.c
132+++ b/main.c
133@@ -215,7 +215,9 @@ int crypto_kop_dsasign(struct cryptodev_pkc *pkc)
134 pkc_req->type = DSA_SIGN;
135 }
136
137- buf = kzalloc(buf_size, GFP_DMA);
138+ buf = kmalloc(buf_size, GFP_DMA);
139+ if (!buf)
140+ return -ENOMEM;
141
142 dsa_req->q = buf;
143 dsa_req->r = dsa_req->q + dsa_req->q_len;
144@@ -298,7 +300,9 @@ int crypto_kop_dsaverify(struct cryptodev_pkc *pkc)
145 pkc_req->type = DSA_VERIFY;
146 }
147
148- buf = kzalloc(buf_size, GFP_DMA);
149+ buf = kmalloc(buf_size, GFP_DMA);
150+ if (!buf)
151+ return -ENOMEM;
152
153 dsa_req->q = buf;
154 dsa_req->r = dsa_req->q + dsa_req->q_len;
155@@ -378,7 +382,7 @@ int crypto_kop_keygen(struct cryptodev_pkc *pkc)
156 pkc_req->curve_type = cop->curve_type;
157 }
158
159- buf = kzalloc(buf_size, GFP_DMA);
160+ buf = kmalloc(buf_size, GFP_DMA);
161 if (!buf)
162 return -ENOMEM;
163
164@@ -390,25 +394,28 @@ int crypto_kop_keygen(struct cryptodev_pkc *pkc)
165 copy_from_user(key_req->q, cop->crk_param[0].crp_p, key_req->q_len);
166 copy_from_user(key_req->r, cop->crk_param[1].crp_p, key_req->r_len);
167 copy_from_user(key_req->g, cop->crk_param[2].crp_p, key_req->g_len);
168- if (cop->crk_iparams == 3) {
169- copy_from_user(key_req->pub_key, cop->crk_param[3].crp_p,
170- key_req->pub_key_len);
171- copy_from_user(key_req->priv_key, cop->crk_param[4].crp_p,
172- key_req->priv_key_len);
173- } else {
174+ if (cop->crk_iparams == 4) {
175 key_req->ab = key_req->priv_key + key_req->priv_key_len;
176 copy_from_user(key_req->ab, cop->crk_param[3].crp_p,
177 key_req->ab_len);
178- copy_from_user(key_req->pub_key, cop->crk_param[4].crp_p,
179- key_req->pub_key_len);
180- copy_from_user(key_req->priv_key, cop->crk_param[5].crp_p,
181- key_req->priv_key_len);
182 }
183
184 rc = cryptodev_pkc_offload(pkc);
185 if (pkc->type == SYNCHRONOUS) {
186 if (rc)
187 goto err;
188+
189+ if (cop->crk_iparams == 4) {
190+ copy_to_user(cop->crk_param[4].crp_p, key_req->pub_key,
191+ key_req->pub_key_len);
192+ copy_to_user(cop->crk_param[5].crp_p, key_req->priv_key,
193+ key_req->priv_key_len);
194+ } else {
195+ copy_to_user(cop->crk_param[3].crp_p, key_req->pub_key,
196+ key_req->pub_key_len);
197+ copy_to_user(cop->crk_param[4].crp_p,
198+ key_req->priv_key, key_req->priv_key_len);
199+ }
200 } else {
201 if (rc != -EINPROGRESS && !rc)
202 goto err;
203@@ -447,7 +454,9 @@ int crypto_kop_dh_key(struct cryptodev_pkc *pkc)
204 pkc_req->type = DH_COMPUTE_KEY;
205 }
206 buf_size += dh_req->z_len;
207- buf = kzalloc(buf_size, GFP_DMA);
208+ buf = kmalloc(buf_size, GFP_DMA);
209+ if (!buf)
210+ return -ENOMEM;
211 dh_req->q = buf;
212 dh_req->s = dh_req->q + dh_req->q_len;
213 dh_req->pub_key = dh_req->s + dh_req->s_len;
214@@ -508,9 +517,11 @@ int crypto_modexp_crt(struct cryptodev_pkc *pkc)
215 rsa_req->dq_len = (cop->crk_param[4].crp_nbits + 7)/8;
216 rsa_req->c_len = (cop->crk_param[5].crp_nbits + 7)/8;
217 rsa_req->f_len = (cop->crk_param[6].crp_nbits + 7)/8;
218- buf = kzalloc(rsa_req->p_len + rsa_req->q_len + rsa_req->f_len +
219+ buf = kmalloc(rsa_req->p_len + rsa_req->q_len + rsa_req->f_len +
220 rsa_req->dp_len + rsa_req->dp_len + rsa_req->c_len +
221 rsa_req->g_len, GFP_DMA);
222+ if (!buf)
223+ return -ENOMEM;
224 rsa_req->p = buf;
225 rsa_req->q = rsa_req->p + rsa_req->p_len;
226 rsa_req->g = rsa_req->q + rsa_req->q_len;
227@@ -563,7 +574,7 @@ int crypto_bn_modexp(struct cryptodev_pkc *pkc)
228 rsa_req->e_len = (cop->crk_param[1].crp_nbits + 7)/8;
229 rsa_req->n_len = (cop->crk_param[2].crp_nbits + 7)/8;
230 rsa_req->g_len = (cop->crk_param[3].crp_nbits + 7)/8;
231- buf = kzalloc(rsa_req->f_len + rsa_req->e_len + rsa_req->n_len
232+ buf = kmalloc(rsa_req->f_len + rsa_req->e_len + rsa_req->n_len
233 + rsa_req->g_len, GFP_DMA);
234 if (!buf)
235 return -ENOMEM;
236--
2372.7.0
238
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-05-04 04:53:23 +0000