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<title>user/sven/linux.git/lib/crypto, branch v5.16.18</title>
<subtitle>Linux Kernel
</subtitle>
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<updated>2021-09-17T03:05:10Z</updated>
<entry>
<title>crypto: sm4 - Do not change section of ck and sbox</title>
<updated>2021-09-17T03:05:10Z</updated>
<author>
<name>Nathan Chancellor</name>
<email>nathan@kernel.org</email>
</author>
<published>2021-08-25T20:38:59Z</published>
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<id>urn:sha1:4a7e1e5fc294687a8941fa3eeb4a7e8539ca5e2f</id>
<content type='text'>
When building with clang and GNU as, there is a warning about ignored
changed section attributes:

/tmp/sm4-c916c8.s: Assembler messages:
/tmp/sm4-c916c8.s:677: Warning: ignoring changed section attributes for
.data..cacheline_aligned

"static const" places the data in .rodata but __cacheline_aligned has
the section attribute to place it in .data..cacheline_aligned, in
addition to the aligned attribute.

To keep the alignment but avoid attempting to change sections, use the
____cacheline_aligned attribute, which is just the aligned attribute.

Fixes: 2b31277af577 ("crypto: sm4 - create SM4 library based on sm4 generic code")
Link: https://github.com/ClangBuiltLinux/linux/issues/1441
Signed-off-by: Nathan Chancellor &lt;nathan@kernel.org&gt;
Reviewed-by: Tianjia Zhang &lt;tianjia.zhang@linux.alibaba.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: arm64/sm4-ce - Make dependent on sm4 library instead of sm4-generic</title>
<updated>2021-07-30T02:58:30Z</updated>
<author>
<name>Tianjia Zhang</name>
<email>tianjia.zhang@linux.alibaba.com</email>
</author>
<published>2021-07-20T03:46:40Z</published>
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<id>urn:sha1:c59de48e125c6d49a8abd165e388ca57bfe37b17</id>
<content type='text'>
SM4 library is abstracted from sm4-generic algorithm, sm4-ce can depend on
the SM4 library instead of sm4-generic, and some functions in sm4-generic
do not need to be exported.

Signed-off-by: Tianjia Zhang &lt;tianjia.zhang@linux.alibaba.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: sm4 - create SM4 library based on sm4 generic code</title>
<updated>2021-07-30T02:58:30Z</updated>
<author>
<name>Tianjia Zhang</name>
<email>tianjia.zhang@linux.alibaba.com</email>
</author>
<published>2021-07-20T03:46:39Z</published>
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<id>urn:sha1:2b31277af577b1b2da62c3ad7d3315b422869102</id>
<content type='text'>
Take the existing small footprint and mostly time invariant C code
and turn it into a SM4 library that can be used for non-performance
critical, casual use of SM4, and as a fallback for, e.g., SIMD code
that needs a secondary path that can be taken in contexts where the
SIMD unit is off limits.

Secondly, some codes have been optimized, such as unrolling small
times loop, removing unnecessary memory shifts, exporting sbox, fk,
ck arrays, and basic encryption and decryption functions.

Signed-off-by: Tianjia Zhang &lt;tianjia.zhang@linux.alibaba.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: lib - rename 'mod_init' &amp; 'mod_exit' functions to be module-specific</title>
<updated>2021-07-16T07:49:36Z</updated>
<author>
<name>Randy Dunlap</name>
<email>rdunlap@infradead.org</email>
</author>
<published>2021-07-11T22:31:45Z</published>
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<id>urn:sha1:f03a3cab26c1b7f628a3be6d33ae1b483829b630</id>
<content type='text'>
Rename module_init &amp; module_exit functions that are named
"mod_init" and "mod_exit" so that they are unique in both the
System.map file and in initcall_debug output instead of showing
up as almost anonymous "mod_init".

This is helpful for debugging and in determining how long certain
module_init calls take to execute.

Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
Cc: "David S. Miller" &lt;davem@davemloft.net&gt;
Cc: linux-crypto@vger.kernel.org
Cc: Jason A. Donenfeld &lt;Jason@zx2c4.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c</title>
<updated>2021-04-22T07:31:29Z</updated>
<author>
<name>Randy Dunlap</name>
<email>rdunlap@infradead.org</email>
</author>
<published>2021-04-12T00:05:56Z</published>
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<id>urn:sha1:b2a4411aca29ab7feb17c927d1d91d979361983c</id>
<content type='text'>
Fix function name in chacha.c kernel-doc comment to remove a warning.

Convert af_alg.c to kernel-doc notation to eliminate many kernel-doc
warnings.

../lib/crypto/chacha.c:77: warning: expecting prototype for chacha_block(). Prototype was for chacha_block_generic() instead
chacha.c:104: warning: Excess function parameter 'out' description in 'hchacha_block_generic'

af_alg.c:498: warning: Function parameter or member 'sk' not described in 'af_alg_alloc_tsgl'
../crypto/af_alg.c:539: warning: expecting prototype for aead_count_tsgl(). Prototype was for af_alg_count_tsgl() instead
../crypto/af_alg.c:596: warning: expecting prototype for aead_pull_tsgl(). Prototype was for af_alg_pull_tsgl() instead
af_alg.c:663: warning: Function parameter or member 'areq' not described in 'af_alg_free_areq_sgls'
af_alg.c:700: warning: Function parameter or member 'sk' not described in 'af_alg_wait_for_wmem'
af_alg.c:700: warning: Function parameter or member 'flags' not described in 'af_alg_wait_for_wmem'
af_alg.c:731: warning: Function parameter or member 'sk' not described in 'af_alg_wmem_wakeup'
af_alg.c:757: warning: Function parameter or member 'sk' not described in 'af_alg_wait_for_data'
af_alg.c:757: warning: Function parameter or member 'flags' not described in 'af_alg_wait_for_data'
af_alg.c:757: warning: Function parameter or member 'min' not described in 'af_alg_wait_for_data'
af_alg.c:796: warning: Function parameter or member 'sk' not described in 'af_alg_data_wakeup'
af_alg.c:832: warning: Function parameter or member 'sock' not described in 'af_alg_sendmsg'
af_alg.c:832: warning: Function parameter or member 'msg' not described in 'af_alg_sendmsg'
af_alg.c:832: warning: Function parameter or member 'size' not described in 'af_alg_sendmsg'
af_alg.c:832: warning: Function parameter or member 'ivsize' not described in 'af_alg_sendmsg'
af_alg.c:985: warning: Function parameter or member 'sock' not described in 'af_alg_sendpage'
af_alg.c:985: warning: Function parameter or member 'page' not described in 'af_alg_sendpage'
af_alg.c:985: warning: Function parameter or member 'offset' not described in 'af_alg_sendpage'
af_alg.c:985: warning: Function parameter or member 'size' not described in 'af_alg_sendpage'
af_alg.c:985: warning: Function parameter or member 'flags' not described in 'af_alg_sendpage'
af_alg.c:1040: warning: Function parameter or member 'areq' not described in 'af_alg_free_resources'
af_alg.c:1059: warning: Function parameter or member '_req' not described in 'af_alg_async_cb'
af_alg.c:1059: warning: Function parameter or member 'err' not described in 'af_alg_async_cb'
af_alg.c:1083: warning: Function parameter or member 'file' not described in 'af_alg_poll'
af_alg.c:1083: warning: Function parameter or member 'sock' not described in 'af_alg_poll'
af_alg.c:1083: warning: Function parameter or member 'wait' not described in 'af_alg_poll'
af_alg.c:1114: warning: Function parameter or member 'sk' not described in 'af_alg_alloc_areq'
af_alg.c:1114: warning: Function parameter or member 'areqlen' not described in 'af_alg_alloc_areq'
af_alg.c:1146: warning: Function parameter or member 'sk' not described in 'af_alg_get_rsgl'
af_alg.c:1146: warning: Function parameter or member 'msg' not described in 'af_alg_get_rsgl'
af_alg.c:1146: warning: Function parameter or member 'flags' not described in 'af_alg_get_rsgl'
af_alg.c:1146: warning: Function parameter or member 'areq' not described in 'af_alg_get_rsgl'
af_alg.c:1146: warning: Function parameter or member 'maxsize' not described in 'af_alg_get_rsgl'
af_alg.c:1146: warning: Function parameter or member 'outlen' not described in 'af_alg_get_rsgl'

Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
Cc: "David S. Miller" &lt;davem@davemloft.net&gt;
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: poly1305 - fix poly1305_core_setkey() declaration</title>
<updated>2021-04-02T07:28:12Z</updated>
<author>
<name>Arnd Bergmann</name>
<email>arnd@arndb.de</email>
</author>
<published>2021-03-22T17:05:15Z</published>
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<id>urn:sha1:8d195e7a8ada68928f2aedb2c18302a4518fe68e</id>
<content type='text'>
gcc-11 points out a mismatch between the declaration and the definition
of poly1305_core_setkey():

lib/crypto/poly1305-donna32.c:13:67: error: argument 2 of type ‘const u8[16]’ {aka ‘const unsigned char[16]’} with mismatched bound [-Werror=array-parameter=]
   13 | void poly1305_core_setkey(struct poly1305_core_key *key, const u8 raw_key[16])
      |                                                          ~~~~~~~~~^~~~~~~~~~~
In file included from lib/crypto/poly1305-donna32.c:11:
include/crypto/internal/poly1305.h:21:68: note: previously declared as ‘const u8 *’ {aka ‘const unsigned char *’}
   21 | void poly1305_core_setkey(struct poly1305_core_key *key, const u8 *raw_key);

This is harmless in principle, as the calling conventions are the same,
but the more specific prototype allows better type checking in the
caller.

Change the declaration to match the actual function definition.
The poly1305_simd_init() is a bit suspicious here, as it previously
had a 32-byte argument type, but looks like it needs to take the
16-byte POLY1305_BLOCK_SIZE array instead.

Fixes: 1c08a104360f ("crypto: poly1305 - add new 32 and 64-bit generic versions")
Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Reviewed-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Reviewed-by: Eric Biggers &lt;ebiggers@google.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: lib/chacha20poly1305 - define empty module exit function</title>
<updated>2021-01-22T03:58:03Z</updated>
<author>
<name>Jason A. Donenfeld</name>
<email>Jason@zx2c4.com</email>
</author>
<published>2021-01-15T19:30:12Z</published>
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<id>urn:sha1:ac88c322d0f2917d41d13553c69e9d7f043c8b6f</id>
<content type='text'>
With no mod_exit function, users are unable to unload the module after
use. I'm not aware of any reason why module unloading should be
prohibited for this one, so this commit simply adds an empty exit
function.

Reported-and-tested-by: John Donnelly &lt;john.p.donnelly@oracle.com&gt;
Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Jason A. Donenfeld &lt;Jason@zx2c4.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: blake2s - move update and final logic to internal/blake2s.h</title>
<updated>2021-01-02T21:41:38Z</updated>
<author>
<name>Eric Biggers</name>
<email>ebiggers@google.com</email>
</author>
<published>2020-12-23T08:09:53Z</published>
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<id>urn:sha1:057edc9c8bb2d5ff5b058b521792c392428a0714</id>
<content type='text'>
Move most of blake2s_update() and blake2s_final() into new inline
functions __blake2s_update() and __blake2s_final() in
include/crypto/internal/blake2s.h so that this logic can be shared by
the shash helper functions.  This will avoid duplicating this logic
between the library and shash implementations.

Signed-off-by: Eric Biggers &lt;ebiggers@google.com&gt;
Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: lib/blake2s - Move selftest prototype into header file</title>
<updated>2020-12-04T07:13:14Z</updated>
<author>
<name>Herbert Xu</name>
<email>herbert@gondor.apana.org.au</email>
</author>
<published>2020-11-27T05:43:18Z</published>
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<id>urn:sha1:ce0d5d63e897cc7c3a8fd043c7942fc6a78ec6f4</id>
<content type='text'>
This patch fixes a missing prototype warning on blake2s_selftest.

Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
<entry>
<title>crypto: lib/curve25519 - Move selftest prototype into header file</title>
<updated>2020-11-20T03:45:33Z</updated>
<author>
<name>Herbert Xu</name>
<email>herbert@gondor.apana.org.au</email>
</author>
<published>2020-11-13T06:12:59Z</published>
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<id>urn:sha1:1201581c57925b8bc2cba8628b61add3d16d4615</id>
<content type='text'>
This patch moves the curve25519_selftest into curve25519.h so
we don't get a warning from gcc complaining about a missing
prototype.

Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</content>
</entry>
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