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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-13 16:08:01 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-13 16:08:01 -0400
commit32f44d62e463f66307513e90c09b4ceeac13cc22 (patch)
treea0e0c33b3c9c4474787ebb007ff15d6600fb053f /drivers/char/hw_random
parentf3ad116588151b3371ae4e092290e4f48e62b8bb (diff)
parent08ced854fc4a979d9e59ba01000bf96e7057cfbc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (35 commits) hwrng: timeriomem - Fix potential oops (request_mem_region/__devinit) crypto: api - Use formatting of module name crypto: testmgr - Allow hash test vectors longer than a page crypto: testmgr - Check all test vector lengths crypto: hifn_795x - fix __dev{init,exit} markings crypto: tcrypt - Do not exit on success in fips mode crypto: compress - Return produced bytes in crypto_{,de}compress_{update,final} hwrng: via_rng - Support VIA Nano hardware RNG on X86_64 builds hwrng: via_rng - Support VIA Nano hardware RNG hwrng: via_rng - The VIA Hardware RNG driver is for the CPU, not Chipset crypto: testmgr - Skip algs not flagged fips_allowed in fips mode crypto: testmgr - Mark algs allowed in fips mode crypto: testmgr - Add ctr(aes) test vectors crypto: testmgr - Dynamically allocate xbuf and axbuf crypto: testmgr - Print self-test pass notices in fips mode crypto: testmgr - Catch base cipher self-test failures in fips mode crypto: testmgr - Add ansi_cprng test vectors crypto: testmgr - Add infrastructure for ansi_cprng self-tests crypto: testmgr - Add self-tests for rfc4309(ccm(aes)) crypto: testmgr - Handle AEAD test vectors expected to fail verification ...
Diffstat (limited to 'drivers/char/hw_random')
-rw-r--r--drivers/char/hw_random/Kconfig2
-rw-r--r--drivers/char/hw_random/omap-rng.c2
-rw-r--r--drivers/char/hw_random/timeriomem-rng.c26
-rw-r--r--drivers/char/hw_random/via-rng.c15
4 files changed, 22 insertions, 23 deletions
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 5fab6470f4b2..9c00440dcf86 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -88,7 +88,7 @@ config HW_RANDOM_N2RNG
88 88
89config HW_RANDOM_VIA 89config HW_RANDOM_VIA
90 tristate "VIA HW Random Number Generator support" 90 tristate "VIA HW Random Number Generator support"
91 depends on HW_RANDOM && X86_32 91 depends on HW_RANDOM && X86
92 default HW_RANDOM 92 default HW_RANDOM
93 ---help--- 93 ---help---
94 This driver provides kernel-side support for the Random Number 94 This driver provides kernel-side support for the Random Number
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 538313f9e7ac..00dd3de1be51 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -89,7 +89,7 @@ static struct hwrng omap_rng_ops = {
89 .data_read = omap_rng_data_read, 89 .data_read = omap_rng_data_read,
90}; 90};
91 91
92static int __init omap_rng_probe(struct platform_device *pdev) 92static int __devinit omap_rng_probe(struct platform_device *pdev)
93{ 93{
94 struct resource *res, *mem; 94 struct resource *res, *mem;
95 int ret; 95 int ret;
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index dcd352ad0e7f..a94e930575f2 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -88,9 +88,9 @@ static struct hwrng timeriomem_rng_ops = {
88 .priv = 0, 88 .priv = 0,
89}; 89};
90 90
91static int __init timeriomem_rng_probe(struct platform_device *pdev) 91static int __devinit timeriomem_rng_probe(struct platform_device *pdev)
92{ 92{
93 struct resource *res, *mem; 93 struct resource *res;
94 int ret; 94 int ret;
95 95
96 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 96 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -98,21 +98,12 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev)
98 if (!res) 98 if (!res)
99 return -ENOENT; 99 return -ENOENT;
100 100
101 mem = request_mem_region(res->start, res->end - res->start + 1,
102 pdev->name);
103 if (mem == NULL)
104 return -EBUSY;
105
106 dev_set_drvdata(&pdev->dev, mem);
107
108 timeriomem_rng_data = pdev->dev.platform_data; 101 timeriomem_rng_data = pdev->dev.platform_data;
109 102
110 timeriomem_rng_data->address = ioremap(res->start, 103 timeriomem_rng_data->address = ioremap(res->start,
111 res->end - res->start + 1); 104 res->end - res->start + 1);
112 if (!timeriomem_rng_data->address) { 105 if (!timeriomem_rng_data->address)
113 ret = -ENOMEM; 106 return -EIO;
114 goto err_ioremap;
115 }
116 107
117 if (timeriomem_rng_data->period != 0 108 if (timeriomem_rng_data->period != 0
118 && usecs_to_jiffies(timeriomem_rng_data->period) > 0) { 109 && usecs_to_jiffies(timeriomem_rng_data->period) > 0) {
@@ -125,7 +116,7 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev)
125 116
126 ret = hwrng_register(&timeriomem_rng_ops); 117 ret = hwrng_register(&timeriomem_rng_ops);
127 if (ret) 118 if (ret)
128 goto err_register; 119 goto failed;
129 120
130 dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n", 121 dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n",
131 timeriomem_rng_data->address, 122 timeriomem_rng_data->address,
@@ -133,24 +124,19 @@ static int __init timeriomem_rng_probe(struct platform_device *pdev)
133 124
134 return 0; 125 return 0;
135 126
136err_register: 127failed:
137 dev_err(&pdev->dev, "problem registering\n"); 128 dev_err(&pdev->dev, "problem registering\n");
138 iounmap(timeriomem_rng_data->address); 129 iounmap(timeriomem_rng_data->address);
139err_ioremap:
140 release_resource(mem);
141 130
142 return ret; 131 return ret;
143} 132}
144 133
145static int __devexit timeriomem_rng_remove(struct platform_device *pdev) 134static int __devexit timeriomem_rng_remove(struct platform_device *pdev)
146{ 135{
147 struct resource *mem = dev_get_drvdata(&pdev->dev);
148
149 del_timer_sync(&timeriomem_rng_timer); 136 del_timer_sync(&timeriomem_rng_timer);
150 hwrng_unregister(&timeriomem_rng_ops); 137 hwrng_unregister(&timeriomem_rng_ops);
151 138
152 iounmap(timeriomem_rng_data->address); 139 iounmap(timeriomem_rng_data->address);
153 release_resource(mem);
154 140
155 return 0; 141 return 0;
156} 142}
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index 4e9573c1d39e..794aacb715c1 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -132,6 +132,19 @@ static int via_rng_init(struct hwrng *rng)
132 struct cpuinfo_x86 *c = &cpu_data(0); 132 struct cpuinfo_x86 *c = &cpu_data(0);
133 u32 lo, hi, old_lo; 133 u32 lo, hi, old_lo;
134 134
135 /* VIA Nano CPUs don't have the MSR_VIA_RNG anymore. The RNG
136 * is always enabled if CPUID rng_en is set. There is no
137 * RNG configuration like it used to be the case in this
138 * register */
139 if ((c->x86 == 6) && (c->x86_model >= 0x0f)) {
140 if (!cpu_has_xstore_enabled) {
141 printk(KERN_ERR PFX "can't enable hardware RNG "
142 "if XSTORE is not enabled\n");
143 return -ENODEV;
144 }
145 return 0;
146 }
147
135 /* Control the RNG via MSR. Tread lightly and pay very close 148 /* Control the RNG via MSR. Tread lightly and pay very close
136 * close attention to values written, as the reserved fields 149 * close attention to values written, as the reserved fields
137 * are documented to be "undefined and unpredictable"; but it 150 * are documented to be "undefined and unpredictable"; but it
@@ -205,5 +218,5 @@ static void __exit mod_exit(void)
205module_init(mod_init); 218module_init(mod_init);
206module_exit(mod_exit); 219module_exit(mod_exit);
207 220
208MODULE_DESCRIPTION("H/W RNG driver for VIA chipsets"); 221MODULE_DESCRIPTION("H/W RNG driver for VIA CPU with PadLock");
209MODULE_LICENSE("GPL"); 222MODULE_LICENSE("GPL");