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KBUILD_MODNAME provides the same value.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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crypto4xx_device's name variable is not set to anything.
The common devname for request_irq seems to be the module
name. This will fix the seemingly anonymous interrupt
entry in /proc/interrupts for crypto4xx.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch adds support for the crypto4xx RevB cores
found in the 460EX, 460SX and later cores (like the APM821xx).
Without this patch, the crypto4xx driver will not be
able to process any offloaded requests and simply hang
indefinitely.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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It is possible to avoid the ce_base null pointer check in the
drivers' interrupt handler routine "crypto4xx_ce_interrupt_handler()"
by simply doing the iomap in front of the IRQ registration.
This way, the ce_base will always be valid in the handler and
a branch in an critical path can be avoided.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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All hardware crypto devices have their CONFIG names using the following
convention:
CRYPTO_DEV_name_algo
This patch apply this conventions on STM32 CONFIG names.
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Offload split key generation in CAAM engine, using DKP.
DKP is supported starting with Era 6.
Note that the way assoclen is transmitted from the job descriptor
to the shared descriptor changes - DPOVRD register is used instead
of MATH3 (where available), since DKP protocol thrashes the MATH
registers.
The replacement of MDHA split key generation with DKP has the side
effect of the crypto engine writing the authentication key, and thus
the DMA mapping direction for the buffer holding the key has to change
from DMA_TO_DEVICE to DMA_BIDIRECTIONAL.
There are two cases:
-key is inlined in descriptor - descriptor buffer mapping changes
-key is referenced - key buffer mapping changes
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Save Era in driver's private data for further usage,
like deciding whether an erratum applies or a feature is available
based on its value.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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ablkcipher shared descriptors are relatively small, thus there is enough
space for the key to be inlined.
Accordingly, there is no need to copy the key in ctx->key.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Key data is not modified, it is copied in the shared descriptor.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The Inside Secure SafeXcel driver was firstly designed to support the
EIP197 cryptographic engine which is an evolution (with much more
feature, better performances) of the EIP97 cryptographic engine. This
patch convert the Inside Secure SafeXcel driver to support both engines
(EIP97 + EIP197).
The main differences are the register offsets and the context
invalidation process which is EIP197 specific. This patch adds an
indirection on the register offsets and adds checks not to send any
invalidation request when driving the EIP97. A new compatible is added
as well to bind the driver from device trees.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The dequeueing function was putting back a request in the crypto queue
on failure (when not enough resources are available) which is not
perfect as the request will be handled much later. This patch updates
this logic by keeping a reference on the failed request to try
proceeding it later when enough resources are available.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch modifies the result handling logic to continue handling
results when the completed requests counter is full and not showing the
actual number of requests to handle.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patches moves the result request acknowledgment from a per request
process to acknowledging all the result requests handled at once.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Increase the ring size to handle more requests in parallel, while
keeping the batch size (for interrupt coalescing) to its previous value.
The ring size and batch size are now unlinked.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch updates the dequeueing logic to dequeue all requests at once.
Since we can have many requests in the queue, the interrupt coalescing
is kept so that the ring interrupt fires every EIP197_MAX_BATCH_SZ at
most.
To allow dequeueing all requests at once while still using reasonable
settings for the interrupt coalescing, the result handling function was
updated to setup the threshold interrupt when needed (i.e. when more
requests than EIP197_MAX_BATCH_SZ are in the queue). When using this
capability the ring is marked as busy so that the dequeue function
enqueue new requests without setting the threshold interrupt.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch moves the result handling from an IRQ handler to a threaded
IRQ handler, to improve the number of complete requests being handled at
once.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch moves the request dequeueing into a workqueue to improve the
coalescing of interrupts when sending requests to the engine; as the
engine is capable of having one single interrupt for n requests sent.
Using a workqueue allows to send more request at once.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The SafeXcel context isn't used in the cache invalidation function. This
cosmetic patch removes it (as well as from the function prototype in the
header file and when the function is called).
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Antoine: commit message]
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The cipher direction can be different for requests within the same
transformation context. This patch moves the direction flag from the
context to the request scope.
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Antoine: commit message]
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When initializing the IVs crypto_ahash_update() is called, which at some
point will call crypto_enqueue_request(). This function can return
-EBUSY when no resource is available and the request is queued. Since
this is a valid case, -EBUSY shouldn't be treated as an error.
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Antoine: commit message]
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The check to know if an invalidation is needed (i.e. when the context
changes) is done even if the context does not exist yet. This happens
when first setting a key for ciphers and/or hmac operations.
This commits adds a check in the _setkey functions to only check if an
invalidation is needed when a context exists, as there is no need to
perform this check otherwise.
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Antoine: commit message and added a comment and reworked one of the
checks]
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Cosmetic patch adding a few comments to the ahash caching function to
understand easily what calculations are made in the functions; and how
the function is working.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch removes an useless memset in the ahash_export function, as
the zeroed buffer will be entirely overridden the next line.
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Cosmetic patch fixing one typo in one of the driver's comments.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Cosmetic patch removing an extra empty line between header inclusions.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Merge the crypto tree to pick up inside-secure fixes.
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Hardware operations like reading random numbers and setting a seed need
to be conducted in a single thread. Therefore a mutex is required to
prevent multiple threads (processes) from accessing the hardware at the
same time.
The sequence of mutex_lock() and mutex_unlock() in the exynos_rng_reseed()
function enables switching between different threads waiting for the
driver to generate random numbers for them.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Reseed PRNG after reading 65 kB of randomness. Although this may reduce
performance, in most cases the loss is not noticeable. Also the time
based threshold for reseeding is changed to one second. Reseeding is
performed whenever either limit is exceeded.
Reseeding of a PRNG does not increase entropy, but it helps preventing
backtracking the internal state of the device from its output sequence,
and hence, prevents potential attacker from predicting numbers to be
generated.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Stephan Mueller <smueller@chronox.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Use memcpy_fromio() instead of custom exynos_rng_copy_random() function
to retrieve generated numbers from the registers of PRNG.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add support for PRNG in Exynos5250+ SoCs.
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The IV size should not include the 32 bit counter. Because we had the
IV size set as 16 the transform only worked when the IV input was zero
padded.
Fixes: a21eb94fc4d3 ("crypto: axis - add ARTPEC-6/7 crypto accelerator driver")
Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Passing the register value by reference here leads a large amount of stack being
used when CONFIG_KASAN is enabled:
drivers/crypto/qat/qat_common/qat_hal.c: In function 'qat_hal_exec_micro_inst.constprop':
drivers/crypto/qat/qat_common/qat_hal.c:963:1: error: the frame size of 1792 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]
Changing the register-read function to return the value instead reduces the stack
size to around 800 bytes, most of which is for the 'savuwords' array. The function
now no longer returns an error code, but nothing ever evaluated that anyway.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patches update the SafeXcel driver to stop using the crypto
ahash_request result field for partial results (i.e. on updates).
Instead the driver local safexcel_ahash_req state field is used, and
only on final operations the ahash_request result buffer is updated.
Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch makes use of the SKCIPHER_REQUEST_ON_STACK and
AHASH_REQUEST_ON_STACK helpers to allocate enough memory to contain both
the crypto request structures and their embedded context (__ctx).
Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch frees the request private data even if its handling failed,
as it would never be freed otherwise.
Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Suggested-by: Ofer Heifetz <oferh@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When an invalidation request is needed we currently override the context
.send and .handle_result helpers. This is wrong as under high load other
requests can already be queued and overriding the context helpers will
make them execute the wrong .send and .handle_result functions.
This commit fixes this by adding a needs_inv flag in the request to
choose the action to perform when sending requests or handling their
results. This flag will be set when needed (i.e. when the context flag
will be set).
Fixes: 1b44c5a60c13 ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Ofer Heifetz <oferh@marvell.com>
[Antoine: commit message, and removed non related changes from the
original commit]
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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exynos-rng is one of many implementations of stdrng. With priority as
low as 100 it isn't selected, if software implementations (DRBG) are
available. The value 300 was selected to give the PRNG priority before
software implementations, but allow them to be selected in FIPS-mode
(fips=1 in the kernel command line).
Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Stephan Mueller <smueller@chronox.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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fix a type cast error for queue descriptor
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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These duplicate includes have been found with scripts/checkincludes.pl but
they have been removed manually to avoid removing false positives.
Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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queue_cache_init is first called for the Control Word Queue
(n2_crypto_probe). At that time, queue_cache[0] is NULL and a new
kmem_cache will be allocated. If the subsequent n2_register_algs call
fails, the kmem_cache will be released in queue_cache_destroy, but
queue_cache_init[0] is not set back to NULL.
So when the Module Arithmetic Unit gets probed next (n2_mau_probe),
queue_cache_init will not allocate a kmem_cache again, but leave it
as its bogus value, causing a BUG() to trigger when queue_cache[0] is
eventually passed to kmem_cache_zalloc:
n2_crypto: Found N2CP at /virtual-devices@100/n2cp@7
n2_crypto: Registered NCS HVAPI version 2.0
called queue_cache_init
n2_crypto: md5 alg registration failed
n2cp f028687c: /virtual-devices@100/n2cp@7: Unable to register algorithms.
called queue_cache_destroy
n2cp: probe of f028687c failed with error -22
n2_crypto: Found NCP at /virtual-devices@100/ncp@6
n2_crypto: Registered NCS HVAPI version 2.0
called queue_cache_init
kernel BUG at mm/slab.c:2993!
Call Trace:
[0000000000604488] kmem_cache_alloc+0x1a8/0x1e0
(inlined) kmem_cache_zalloc
(inlined) new_queue
(inlined) spu_queue_setup
(inlined) handle_exec_unit
[0000000010c61eb4] spu_mdesc_scan+0x1f4/0x460 [n2_crypto]
[0000000010c62b80] n2_mau_probe+0x100/0x220 [n2_crypto]
[000000000084b174] platform_drv_probe+0x34/0xc0
Cc: <stable@vger.kernel.org>
Signed-off-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Without the gf128mul library support, we can run into a link
error:
drivers/crypto/chelsio/chcr_algo.o: In function `chcr_update_tweak':
chcr_algo.c:(.text+0x7e0): undefined reference to `gf128mul_x8_ble'
This adds a Kconfig select statement for it, next to the ones we
already have.
Cc: <stable@vger.kernel.org>
Fixes: b8fd1f4170e7 ("crypto: chcr - Add ctr mode and process large sg entries for cipher")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In the case where skb->ip_summed != CHECKSUM_PARTIAL then cntrl contains
garbage value and this is possibly being bit-wise or'd and stored into
cpl->ctrl1. Fix this by initializing cntrl to zero.
Cleans up clang warning:
drivers/crypto/chelsio/chcr_ipsec.c:374:9: warning: The left expression
of the compound assignment is an uninitialized value. The computed value
will also be garbage
Fixes: 6dad4e8ab3ec ("chcr: Add support for Inline IPSec")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Variables adap, pi and cntrl are assigned but are never read, hence
they are redundant and can be removed.
Cleans up various clang build warnings.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The arrays sgl_ent_len and dsgl_ent_len are local to the source and do
not need to be in global scope, so make them static. Also re-format the
declarations to match the following round_constant array declaration
style.
Cleans up sparse warnings:
drivers/crypto/chelsio/chcr_algo.c:76:14: warning: symbol 'sgl_ent_len'
was not declared. Should it be static?
drivers/crypto/chelsio/chcr_algo.c:81:14: warning: symbol 'dsgl_ent_len'
was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch fix the following build failure:
CC [M] drivers/crypto/stm32/stm32-cryp.o
In file included from drivers/crypto/stm32/stm32-cryp.c:11:0:
drivers/crypto/stm32/stm32-cryp.c:1049:25: error: 'sti_dt_ids' undeclared here (not in a function)
MODULE_DEVICE_TABLE(of, sti_dt_ids);
Let's replace sti_dt_ids with stm32_dt_ids which is just declared
before.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fix below warnings on ARMv7 by using %zu for printing size_t values:
drivers/crypto/caam/caamalg_qi.c: In function aead_edesc_alloc:
drivers/crypto/caam/caamalg_qi.c:417:17: warning: format %lu expects argument of type long unsigned int, but argument 4 has type unsigned int [-Wformat=]
sizeof(struct qm_sg_entry))
^
drivers/crypto/caam/caamalg_qi.c:672:16: note: in expansion of macro CAAM_QI_MAX_AEAD_SG
qm_sg_ents, CAAM_QI_MAX_AEAD_SG);
^
drivers/crypto/caam/caamalg_qi.c: In function ablkcipher_edesc_alloc:
drivers/crypto/caam/caamalg_qi.c:440:17: warning: format %lu expects argument of type long unsigned int, but argument 4 has type unsigned int [-Wformat=]
sizeof(struct qm_sg_entry))
^
drivers/crypto/caam/caamalg_qi.c:909:16: note: in expansion of macro CAAM_QI_MAX_ABLKCIPHER_SG
qm_sg_ents, CAAM_QI_MAX_ABLKCIPHER_SG);
^
drivers/crypto/caam/caamalg_qi.c: In function ablkcipher_giv_edesc_alloc:
drivers/crypto/caam/caamalg_qi.c:440:17: warning: format %lu expects argument of type long unsigned int, but argument 4 has type unsigned int [-Wformat=]
sizeof(struct qm_sg_entry))
^
drivers/crypto/caam/caamalg_qi.c:1062:16: note: in expansion of macro CAAM_QI_MAX_ABLKCIPHER_SG
qm_sg_ents, CAAM_QI_MAX_ABLKCIPHER_SG);
^
Fixes: eb9ba37dc15a ("crypto: caam/qi - handle large number of S/Gs case")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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'dev' is leaking in the error handling path of 'hifn_probe()'.
Add a 'kfree(dev)' to match the code in 'hifn_remove()'
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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register xfrmdev_ops callbacks, Send IPsec tunneled data
to HW for inline processing.
The driver use hardware crypto accelerator to encrypt and
generate ICV for the transmitted packet in Inline mode.
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The object info is being leaked on an error return path, fix this
by setting ret to -ENOMEM and exiting via the request_cleanup path
that will free info.
Detected by CoverityScan, CID#1408439 ("Resource Leak")
Fixes: c694b233295b ("crypto: cavium - Add the Virtual Function driver for CPT")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Trivial fix to spelling mistake in pr_err error message text. Also
fix spelling mistake in proceeding comment.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Christian Lamparter
Corentin Labbe
Horia Geantă
Antoine Ténart
Ofer Heifetz
Herbert Xu
Łukasz Stelmach
Lars Persson
Arnd Bergmann
Atul Gupta
Pravin Shedge
Jan Engelhardt
Colin Ian King
Corentin LABBE
Christophe Jaillet