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Make sure that we call the dma_unmap_sg on the correct scatterlist on
completion with the correct sg_nents.
Use sg_table to managed the DMA mapping and at the same time add the needed
dma_sync calls for the sg_table.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The pm_runtime_get_sync() function returns either 0 or 1 on success but
this code treats a return of 1 as a failure.
Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Clang detects a warning for an assignment that doesn't really do
anything. Fix this by removing the offending piece of code.
Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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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 <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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drivers/crypto/sa2ul.c: In function ‘sa_sha_init’:
drivers/crypto/sa2ul.c:1486:33: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
crypto_ahash_digestsize(tfm), (u64)rctx);
^
./include/linux/dev_printk.h:123:47: note: in definition of macro ‘dev_dbg’
dev_printk(KERN_DEBUG, dev, dev_fmt(fmt), ##__VA_ARGS__); \
^~~~~~~~~~~
Use %p to print rctx pointer.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fix inconsistent IS_ERR and PTR_ERR in sa_dma_init(). The proper pointer
to be passed as argument to PTR_ERR() is dd->dma_tx.
This bug was detected with the help of Coccinelle.
Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The child devices for sa2ul (like the RNG) have hard dependency towards
the parent, they can't function without the parent enabled. Add device
link for this purpose so that the dependencies are taken care of properly.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add support for sa2ul hardware AEAD for hmac(sha256),cbc(aes) and
hmac(sha1),cbc(aes) algorithms.
Signed-off-by: Keerthy <j-keerthy@ti.com>
[t-kristo@ti.com: number of bug fixes, major refactoring and cleanup of
code]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add support for sha1/sha256/sha512 sa2ul based hardware authentication.
With the hash update mechanism, we always use software fallback
mechanism for now, as there is no way to fetch the partial hash state
from the HW accelerator. HW accelerator is only used when digest is
called for a data chunk of known size.
Signed-off-by: Keerthy <j-keerthy@ti.com>
[t-kristo@ti.com: various bug fixes, major cleanups and refactoring of code]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Adds a basic crypto driver and currently supports AES/3DES
in cbc mode for both encryption and decryption.
Signed-off-by: Keerthy <j-keerthy@ti.com>
[t-kristo@ti.com: major re-work to fix various bugs in the driver and to
cleanup the code]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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