<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/char/hw_random, branch v5.10-rc2</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</title>
<updated>2020-10-13T15:50:16+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2020-10-13T15:50:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=39a5101f989e8d2be557136704d53990f9b402c8'/>
<id>39a5101f989e8d2be557136704d53990f9b402c8</id>
<content type='text'>
Pull crypto updates from Herbert Xu:
 "API:
   - Allow DRBG testing through user-space af_alg
   - Add tcrypt speed testing support for keyed hashes
   - Add type-safe init/exit hooks for ahash

  Algorithms:
   - Mark arc4 as obsolete and pending for future removal
   - Mark anubis, khazad, sead and tea as obsolete
   - Improve boot-time xor benchmark
   - Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity

  Drivers:
   - Fixes and enhancement for XTS in caam
   - Add support for XIP8001B hwrng in xiphera-trng
   - Add RNG and hash support in sun8i-ce/sun8i-ss
   - Allow imx-rngc to be used by kernel entropy pool
   - Use crypto engine in omap-sham
   - Add support for Ingenic X1830 with ingenic"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
  X.509: Fix modular build of public_key_sm2
  crypto: xor - Remove unused variable count in do_xor_speed
  X.509: fix error return value on the failed path
  crypto: bcm - Verify GCM/CCM key length in setkey
  crypto: qat - drop input parameter from adf_enable_aer()
  crypto: qat - fix function parameters descriptions
  crypto: atmel-tdes - use semicolons rather than commas to separate statements
  crypto: drivers - use semicolons rather than commas to separate statements
  hwrng: mxc-rnga - use semicolons rather than commas to separate statements
  hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
  hwrng: stm32 - use semicolons rather than commas to separate statements
  crypto: xor - use ktime for template benchmarking
  crypto: xor - defer load time benchmark to a later time
  crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
  crypto: hisilicon/zip - fix the return value when device is busy
  crypto: hisilicon/zip - fix zero length input in GZIP decompress
  crypto: hisilicon/zip - fix the uncleared debug registers
  lib/mpi: Fix unused variable warnings
  crypto: x86/poly1305 - Remove assignments with no effect
  hwrng: npcm - modify readl to readb
  ...
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pull crypto updates from Herbert Xu:
 "API:
   - Allow DRBG testing through user-space af_alg
   - Add tcrypt speed testing support for keyed hashes
   - Add type-safe init/exit hooks for ahash

  Algorithms:
   - Mark arc4 as obsolete and pending for future removal
   - Mark anubis, khazad, sead and tea as obsolete
   - Improve boot-time xor benchmark
   - Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity

  Drivers:
   - Fixes and enhancement for XTS in caam
   - Add support for XIP8001B hwrng in xiphera-trng
   - Add RNG and hash support in sun8i-ce/sun8i-ss
   - Allow imx-rngc to be used by kernel entropy pool
   - Use crypto engine in omap-sham
   - Add support for Ingenic X1830 with ingenic"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
  X.509: Fix modular build of public_key_sm2
  crypto: xor - Remove unused variable count in do_xor_speed
  X.509: fix error return value on the failed path
  crypto: bcm - Verify GCM/CCM key length in setkey
  crypto: qat - drop input parameter from adf_enable_aer()
  crypto: qat - fix function parameters descriptions
  crypto: atmel-tdes - use semicolons rather than commas to separate statements
  crypto: drivers - use semicolons rather than commas to separate statements
  hwrng: mxc-rnga - use semicolons rather than commas to separate statements
  hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
  hwrng: stm32 - use semicolons rather than commas to separate statements
  crypto: xor - use ktime for template benchmarking
  crypto: xor - defer load time benchmark to a later time
  crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
  crypto: hisilicon/zip - fix the return value when device is busy
  crypto: hisilicon/zip - fix zero length input in GZIP decompress
  crypto: hisilicon/zip - fix the uncleared debug registers
  lib/mpi: Fix unused variable warnings
  crypto: x86/poly1305 - Remove assignments with no effect
  hwrng: npcm - modify readl to readb
  ...
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: mxc-rnga - use semicolons rather than commas to separate statements</title>
<updated>2020-10-02T08:02:15+00:00</updated>
<author>
<name>Julia Lawall</name>
<email>Julia.Lawall@inria.fr</email>
</author>
<published>2020-09-27T19:12:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=03ace9b16bd0c724c9171b8e0467490dc968a3b9'/>
<id>03ace9b16bd0c724c9171b8e0467490dc968a3b9</id>
<content type='text'>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: iproc-rng200 - use semicolons rather than commas to separate statements</title>
<updated>2020-10-02T08:02:15+00:00</updated>
<author>
<name>Julia Lawall</name>
<email>Julia.Lawall@inria.fr</email>
</author>
<published>2020-09-27T19:12:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f9dc446cb959d1efdb971fb3cde18c354a4a04c9'/>
<id>f9dc446cb959d1efdb971fb3cde18c354a4a04c9</id>
<content type='text'>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Acked-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Acked-by: Florian Fainelli &lt;f.fainelli@gmail.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: stm32 - use semicolons rather than commas to separate statements</title>
<updated>2020-10-02T08:02:14+00:00</updated>
<author>
<name>Julia Lawall</name>
<email>Julia.Lawall@inria.fr</email>
</author>
<published>2020-09-27T19:12:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=436cdcdec02905d1523aec98891d3a1c889dd529'/>
<id>436cdcdec02905d1523aec98891d3a1c889dd529</id>
<content type='text'>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Replace commas with semicolons.  What is done is essentially described by
the following Coccinelle semantic patch (http://coccinelle.lip6.fr/):

// &lt;smpl&gt;
@@ expression e1,e2; @@
e1
-,
+;
e2
... when any
// &lt;/smpl&gt;

Signed-off-by: Julia Lawall &lt;Julia.Lawall@inria.fr&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: npcm - modify readl to readb</title>
<updated>2020-10-02T08:02:13+00:00</updated>
<author>
<name>Tomer Maimon</name>
<email>tmaimon77@gmail.com</email>
</author>
<published>2020-09-23T21:23:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c2fb644638ae45cc4a34aa51a18d687d4781f8a1'/>
<id>c2fb644638ae45cc4a34aa51a18d687d4781f8a1</id>
<content type='text'>
Modify the read size to the correct HW random
registers size, 8bit.
The incorrect read size caused and faulty
HW random value.

Signed-off-by: Tomer Maimon &lt;tmaimon77@gmail.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Modify the read size to the correct HW random
registers size, 8bit.
The incorrect read size caused and faulty
HW random value.

Signed-off-by: Tomer Maimon &lt;tmaimon77@gmail.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: ingenic - Add hardware TRNG for Ingenic X1830</title>
<updated>2020-09-25T07:46:41+00:00</updated>
<author>
<name>周琰杰 (Zhou Yanjie)</name>
<email>zhouyanjie@wanyeetech.com</email>
</author>
<published>2020-09-13T16:10:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=406346d2227854bd9a5abdf07ef3d45d0de85a3e'/>
<id>406346d2227854bd9a5abdf07ef3d45d0de85a3e</id>
<content type='text'>
Add X1830 SoC digital true random number generator driver.

Tested-by: 周正 (Zhou Zheng) &lt;sernia.zhou@foxmail.com&gt;
Co-developed-by: 漆鹏振 (Qi Pengzhen) &lt;aric.pzqi@ingenic.com&gt;
Signed-off-by: 漆鹏振 (Qi Pengzhen) &lt;aric.pzqi@ingenic.com&gt;
Signed-off-by: 周琰杰 (Zhou Yanjie) &lt;zhouyanjie@wanyeetech.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add X1830 SoC digital true random number generator driver.

Tested-by: 周正 (Zhou Zheng) &lt;sernia.zhou@foxmail.com&gt;
Co-developed-by: 漆鹏振 (Qi Pengzhen) &lt;aric.pzqi@ingenic.com&gt;
Signed-off-by: 漆鹏振 (Qi Pengzhen) &lt;aric.pzqi@ingenic.com&gt;
Signed-off-by: 周琰杰 (Zhou Yanjie) &lt;zhouyanjie@wanyeetech.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: xiphera-trng: add support for XIP8001B hwrng</title>
<updated>2020-09-11T04:39:17+00:00</updated>
<author>
<name>Atte Tommiska</name>
<email>atte.tommiska@xiphera.com</email>
</author>
<published>2020-09-02T10:28:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=cb435fa642ebbb348d336aa46669c0881dd435bc'/>
<id>cb435fa642ebbb348d336aa46669c0881dd435bc</id>
<content type='text'>
Xiphera XIP8001B is an FPGA-based True Random Number Generator
Intellectual Property (IP) Core which can be instantiated in
multiple FPGA families. This driver adds Linux support for it through
the hwrng interface.

Signed-off-by: Atte Tommiska &lt;atte.tommiska@xiphera.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Xiphera XIP8001B is an FPGA-based True Random Number Generator
Intellectual Property (IP) Core which can be instantiated in
multiple FPGA families. This driver adds Linux support for it through
the hwrng interface.

Signed-off-by: Atte Tommiska &lt;atte.tommiska@xiphera.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: imx-rngc - add quality to use it as kernel entropy pool</title>
<updated>2020-09-11T04:39:14+00:00</updated>
<author>
<name>Marco Felsch</name>
<email>m.felsch@pengutronix.de</email>
</author>
<published>2020-08-31T14:00:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9769635423af703b131d7635e0de83767fe0006d'/>
<id>9769635423af703b131d7635e0de83767fe0006d</id>
<content type='text'>
The RNGB can generate 2^20 words (1 word == 4 byte) of 'random' data
after the seed pool was initialized. The pool needs to be reseeded if
more words are required. The reseeding is done automatically since
commit 3acd9ea9331c ("hwrng: imx-rngc - use automatic seeding").

We can't retrieve the TRNG values directly so we need a other way to get
the quality level. We know that the PRNG uses 20.000 entropy samples
from the TRNG to generate 2^20 words (1MiB) and the quality level is
defined as (in bits of entropy per 1024 bits of input). So the quality
level can be calculated by:

   20.000 * 1024
   ------------- = ~ 19.5
        2^20

Signed-off-by: Marco Felsch &lt;m.felsch@pengutronix.de&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The RNGB can generate 2^20 words (1 word == 4 byte) of 'random' data
after the seed pool was initialized. The pool needs to be reseeded if
more words are required. The reseeding is done automatically since
commit 3acd9ea9331c ("hwrng: imx-rngc - use automatic seeding").

We can't retrieve the TRNG values directly so we need a other way to get
the quality level. We know that the PRNG uses 20.000 entropy samples
from the TRNG to generate 2^20 words (1MiB) and the quality level is
defined as (in bits of entropy per 1024 bits of input). So the quality
level can be calculated by:

   20.000 * 1024
   ------------- = ~ 19.5
        2^20

Signed-off-by: Marco Felsch &lt;m.felsch@pengutronix.de&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: cctrn - Simplify with dev_err_probe()</title>
<updated>2020-09-04T07:57:15+00:00</updated>
<author>
<name>Krzysztof Kozlowski</name>
<email>krzk@kernel.org</email>
</author>
<published>2020-08-26T15:32:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4d6aef2f2eaabf4512321341439023e042633aba'/>
<id>4d6aef2f2eaabf4512321341439023e042633aba</id>
<content type='text'>
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Acked-by: Hadar Gat &lt;hadar.gat@arm.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and also it prints the error value.

Signed-off-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Acked-by: Hadar Gat &lt;hadar.gat@arm.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>hwrng: intel - cleanup initialization</title>
<updated>2020-08-21T04:47:49+00:00</updated>
<author>
<name>Tom Rix</name>
<email>trix@redhat.com</email>
</author>
<published>2020-08-09T15:04:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=3a61cdf43e670b99404436a5854aae993ef616ed'/>
<id>3a61cdf43e670b99404436a5854aae993ef616ed</id>
<content type='text'>
clang static analysis reports this problem

intel-rng.c:333:2: warning: Assigned value is garbage or undefined
        void __iomem *mem = mem;
        ^~~~~~~~~~~~~~~~~   ~~~

Because mem is assigned before it is used, this is not
a real problem.  But the initialization is strange and not
needed, so remove it.

Signed-off-by: Tom Rix &lt;trix@redhat.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
clang static analysis reports this problem

intel-rng.c:333:2: warning: Assigned value is garbage or undefined
        void __iomem *mem = mem;
        ^~~~~~~~~~~~~~~~~   ~~~

Because mem is assigned before it is used, this is not
a real problem.  But the initialization is strange and not
needed, so remove it.

Signed-off-by: Tom Rix &lt;trix@redhat.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</pre>
</div>
</content>
</entry>
</feed>
