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2011-11-10ENGR00112200 Add cryptodev deviceMichal Ludvig
Linux driver for /dev/crypto (aka CryptoDev) See http://www.logix.cz/michal/devel/cryptodev for details. Signed-off-by: Michal Ludvig <mludvig@suse.cz> Signed-off-by: Rob Herring <r.herring@freescale.com>
2011-01-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits) hwrng: via_rng - Fix memory scribbling on some CPUs crypto: padlock - Move padlock.h into include/crypto hwrng: via_rng - Fix asm constraints crypto: n2 - use __devexit not __exit in n2_unregister_algs crypto: mark crypto workqueues CPU_INTENSIVE crypto: mv_cesa - dont return PTR_ERR() of wrong pointer crypto: ripemd - Set module author and update email address crypto: omap-sham - backlog handling fix crypto: gf128mul - Remove experimental tag crypto: af_alg - fix af_alg memory_allocated data type crypto: aesni-intel - Fixed build with binutils 2.16 crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets net: Add missing lockdep class names for af_alg include: Install linux/if_alg.h for user-space crypto API crypto: omap-aes - checkpatch --file warning fixes crypto: omap-aes - initialize aes module once per request crypto: omap-aes - unnecessary code removed crypto: omap-aes - error handling implementation improved crypto: omap-aes - redundant locking is removed crypto: omap-aes - DMA initialization fixes for OMAP off mode ...
2011-01-04crypto: mark crypto workqueues CPU_INTENSIVETejun Heo
kcrypto_wq and pcrypt->wq's are used to run ciphers and may consume considerable amount of CPU cycles. Mark both as CPU_INTENSIVE so that they don't block other work items. As the workqueues are primarily used to burn CPU cycles, concurrency levels shouldn't matter much and are left at 1. A higher value may be beneficial and needs investigation. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-01-04crypto: ripemd - Set module author and update email addressAdrian-Ken Rueegsegger
Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-28crypto: gf128mul - Remove experimental tagHerbert Xu
This feature no longer needs the experimental tag. Reported-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-21crypto: af_alg - fix af_alg memory_allocated data typeRandy Dunlap
Change data type to fix warning: crypto/af_alg.c:35: warning: initialization from incompatible pointer type Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-08crypto: af_alg - Make sure sk_security is initialized on accept()ed socketsMiloslav Trmač
Signed-off-by: Miloslav Trmač <mitr@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-12-02crypto: Use scatterwalk_crypto_chainSteffen Klassert
Use scatterwalk_crypto_chain in favor of locally defined chaining functions. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-30crypto: algif_skcipher - Handle unaligned receive bufferHerbert Xu
As it is if user-space passes through a receive buffer that's not aligned to to the cipher block size, we'll end up encrypting or decrypting a partial block which causes a spurious EINVAL to be returned. This patch fixes this by moving the partial block test after the af_alg_make_sg call. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-30crypto: algif_skcipher - Fixed overflow when sndbuf is page alignedHerbert Xu
When sk_sndbuf is not a multiple of PAGE_SIZE, the limit tests in sendmsg fail as the limit variable becomes negative and we're using an unsigned comparison. The same thing can happen if sk_sndbuf is lowered after a sendmsg call. This patch fixes this by always taking the signed maximum of limit and 0 before we perform the comparison. It also rounds the value of sk_sndbuf down to a multiple of PAGE_SIZE so that we don't end up allocating a page only to use a small number of bytes in it because we're bound by sk_sndbuf. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-29crypto: af_alg - Add dependency on NETHerbert Xu
Add missing dependency on NET since we require sockets for our interface. Should really be a select but kconfig doesn't like that: net/Kconfig:6:error: found recursive dependency: NET -> NETWORK_FILESYSTEMS -> AFS_FS -> AF_RXRPC -> CRYPTO -> CRYPTO_USER_API_HASH -> CRYPTO_USER_API -> NET Reported-by: Zimny Lech <napohybelskurwysynom2010@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-28crypto: algif_skcipher - Pass on error from af_alg_make_sgHerbert Xu
The error returned from af_alg_make_sg is currently lost and we always pass on -EINVAL. This patch pases on the underlying error. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27crypto: aesni-intel - Ported implementation to x86-32Mathias Krause
The AES-NI instructions are also available in legacy mode so the 32-bit architecture may profit from those, too. To illustrate the performance gain here's a short summary of a dm-crypt speed test on a Core i7 M620 running at 2.67GHz comparing both assembler implementations: x86: i568 aes-ni delta ECB, 256 bit: 93.8 MB/s 123.3 MB/s +31.4% CBC, 256 bit: 84.8 MB/s 262.3 MB/s +209.3% LRW, 256 bit: 108.6 MB/s 222.1 MB/s +104.5% XTS, 256 bit: 105.0 MB/s 205.5 MB/s +95.7% Additionally, due to some minor optimizations, the 64-bit version also got a minor performance gain as seen below: x86-64: old impl. new impl. delta ECB, 256 bit: 121.1 MB/s 123.0 MB/s +1.5% CBC, 256 bit: 285.3 MB/s 290.8 MB/s +1.9% LRW, 256 bit: 263.7 MB/s 265.3 MB/s +0.6% XTS, 256 bit: 251.1 MB/s 255.3 MB/s +1.7% Signed-off-by: Mathias Krause <minipli@googlemail.com> Reviewed-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27crypto: Makefile clean upTracey Dent
Changed Makefile to use <modules>-y instead of <modules>-objs. Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-27crypto: Use vzallocJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-26crypto: algif_skcipher - User-space interface for skcipher operationsHerbert Xu
This patch adds the af_alg plugin for symmetric key ciphers, corresponding to the ablkcipher kernel operation type. Keys can optionally be set through the setsockopt interface. Once a sendmsg call occurs without MSG_MORE no further writes may be made to the socket until all previous data has been read. IVs and and whether encryption/decryption is performed can be set through the setsockopt interface or as a control message to sendmsg. The interface is completely synchronous, all operations are carried out in recvmsg(2) and will complete prior to the system call returning. The splice(2) interface support reading the user-space data directly without copying (except that the Crypto API itself may copy the data if alignment is off). The recvmsg(2) interface supports directly writing to user-space without additional copying, i.e., the kernel crypto interface will receive the user-space address as its output SG list. Thakns to Miloslav Trmac for reviewing this and contributing fixes and improvements. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: David S. Miller <davem@davemloft.net>
2010-11-19crypto: algif_hash - User-space interface for hash operationsHerbert Xu
This patch adds the af_alg plugin for hash, corresponding to the ahash kernel operation type. Keys can optionally be set through the setsockopt interface. Each sendmsg call will finalise the hash unless sent with a MSG_MORE flag. Partial hash states can be cloned using accept(2). The interface is completely synchronous, all operations will complete prior to the system call returning. Both sendmsg(2) and splice(2) support reading the user-space data directly without copying (except that the Crypto API itself may copy the data if alignment is off). For now only the splice(2) interface supports performing digest instead of init/update/final. In future the sendmsg(2) interface will also be modified to use digest/finup where possible so that hardware that cannot return a partial hash state can still benefit from this interface. Thakns to Miloslav Trmac for reviewing this and contributing fixes and improvements. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Martin Willi <martin@strongswan.org>
2010-11-19crypto: af_alg - User-space interface for Crypto APIHerbert Xu
This patch creates the backbone of the user-space interface for the Crypto API, through a new socket family AF_ALG. Each session corresponds to one or more connections obtained from that socket. The number depends on the number of inputs/outputs of that particular type of operation. For most types there will be a s ingle connection/file descriptor that is used for both input and output. AEAD is one of the few that require two inputs. Each algorithm type will provide its own implementation that plugs into af_alg. They're keyed using a string such as "skcipher" or "hash". IOW this patch only contains the boring bits that is required to hold everything together. Thakns to Miloslav Trmac for reviewing this and contributing fixes and improvements. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: David S. Miller <davem@davemloft.net> Tested-by: Martin Willi <martin@strongswan.org>
2010-11-13crypto: rfc4106 - Extending the RC4106 AES-GCM test vectorsAdrian Hoban
Updated RFC4106 AES-GCM testing. Some test vectors were taken from http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/ gcm/gcm-test-vectors.tar.gz Signed-off-by: Adrian Hoban <adrian.hoban@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com> Signed-off-by: Aidan O'Mahony <aidan.o.mahony@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-13crypto: cast5 - simplify if-statementsNicolas Kaiser
I noticed that by factoring out common rounds from the branches of the if-statements in the encryption and decryption functions, the executable file size goes down significantly, for crypto/cast5.ko from 26688 bytes to 24336 bytes (amd64). On my test system, I saw a slight speedup. This is the first time I'm doing such a benchmark - I found a similar one on the crypto mailing list, and I hope I did it right? Before: # cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128 Passsatz eingeben: # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,43484 s, 21,5 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,4089 s, 21,8 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,41091 s, 21,7 MB/s After: # cryptsetup create dm-test /dev/hda2 -c cast5-cbc-plain -s 128 Passsatz eingeben: # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,38128 s, 22,0 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,29486 s, 22,8 MB/s # dd if=/dev/zero of=/dev/mapper/dm-test bs=1M count=50 52428800 Bytes (52 MB) kopiert, 2,37162 s, 22,1 MB/s Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-11-12crypto: pcrypt - Fix use after free on padata_freeSteffen Klassert
kobject_put is called from padata_free for the padata kobject. The kobject's release function frees the padata instance, so don't call kobject_put for the padata kobject from pcrypt. Reported-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-04crypto: hash - Fix async import on shash algorithmHerbert Xu
The function shash_async_import did not initialise the descriptor correctly prior to calling the underlying shash import function. This patch adds the required initialisation. Reported-by: Miloslav Trmac <mitr@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-10-27Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (48 commits) DMAENGINE: move COH901318 to arch_initcall dma: imx-dma: fix signedness bug dma/timberdale: simplify conditional ste_dma40: remove channel_type ste_dma40: remove enum for endianess ste_dma40: remove TIM_FOR_LINK option ste_dma40: move mode_opt to separate config ste_dma40: move channel mode to a separate field ste_dma40: move priority to separate field ste_dma40: add variable to indicate valid dma_cfg async_tx: make async_tx channel switching opt-in move async raid6 test to lib/Kconfig.debug dmaengine: Add Freescale i.MX1/21/27 DMA driver intel_mid_dma: change the slave interface intel_mid_dma: fix the WARN_ONs intel_mid_dma: Add sg list support to DMA driver intel_mid_dma: Allow DMAC2 to share interrupt intel_mid_dma: Allow IRQ sharing intel_mid_dma: Add runtime PM support DMAENGINE: define a dummy filter function for ste_dma40 ...
2010-10-26mm: strictly nested kmap_atomic()Peter Zijlstra
Ensure kmap_atomic() usage is strictly nested Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Miller <davem@davemloft.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: Makefile - replace the use of <module>-objs with <module>-y crypto: hifn_795x - use cancel_delayed_work_sync() crypto: talitos - sparse check endian fixes crypto: talitos - fix checkpatch warning crypto: talitos - fix warning: 'alg' may be used uninitialized in this function crypto: cryptd - Adding the AEAD interface type support to cryptd crypto: n2_crypto - Niagara2 driver needs to depend upon CRYPTO_DES crypto: Kconfig - update broken web addresses crypto: omap-sham - Adjust DMA parameters crypto: fips - FIPS requires algorithm self-tests crypto: omap-aes - OMAP2/3 AES hw accelerator driver crypto: updates to enable omap aes padata: add missing __percpu markup in include/linux/padata.h MAINTAINERS: Add maintainer entries for padata/pcrypt
2010-10-07move async raid6 test to lib/Kconfig.debugDan Williams
The prompt for "Self test for hardware accelerated raid6 recovery" does not belong in the top level configuration menu. All the options in crypto/async_tx/Kconfig are selected and do not depend on CRYPTO. Kconfig.debug seems like a reasonable fit. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-10-07Blackfin: Rename DES PC2() symbol to avoid collisionDavid Howells
Rename the PC2() symbol in the generic DES crypto module to be prefixed with DES_ to avoid collision with arch code (Blackfin in this case). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-09-20crypto: cryptd - Adding the AEAD interface type support to cryptdAdrian Hoban
This patch adds AEAD support into the cryptd framework. Having AEAD support in cryptd enables crypto drivers that use the AEAD interface type (such as the patch for AEAD based RFC4106 AES-GCM implementation using Intel New Instructions) to leverage cryptd for asynchronous processing. Signed-off-by: Adrian Hoban <adrian.hoban@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Gabriele Paoloni <gabriele.paoloni@intel.com> Signed-off-by: Aidan O'Mahony <aidan.o.mahony@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-09-12crypto: Kconfig - update broken web addressesJustin P. Mattock
Below is a patch to update the broken web addresses, in crypto/* that I could locate. Some are just simple typos that needed to be fixed, and some had a change in location altogether.. let me know if any of them need to be changed and such. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-09-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: Revert "hwrng: n2-drv - remove casts from void*" crypto: testmgr - Default to no tests crypto: testmgr - Fix test disabling option crypto: hash - Fix handling of small unaligned buffers
2010-09-03crypto: fips - FIPS requires algorithm self-testsChuck Ebbert
Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-09Merge branch 'async' of macbook:git/btrfs-unstableDavid Woodhouse
Conflicts: drivers/md/Makefile lib/raid6/unroll.pl
2010-08-06crypto: testmgr - Default to no testsHerbert Xu
On Thu, Aug 05, 2010 at 07:01:21PM -0700, Linus Torvalds wrote: > On Thu, Aug 5, 2010 at 6:40 PM, Herbert Xu <herbert@gondor.hengli.com.au> wrote: > > > > -config CRYPTO_MANAGER_TESTS > > - bool "Run algolithms' self-tests" > > - default y > > - depends on CRYPTO_MANAGER2 > > +config CRYPTO_MANAGER_DISABLE_TESTS > > + bool "Disable run-time self tests" > > + depends on CRYPTO_MANAGER2 && EMBEDDED > > Why do you still want to force-enable those tests? I was going to > complain about the "default y" anyway, now I'm _really_ complaining, > because you've now made it impossible to disable those tests. Why? As requested, this patch sets the default to y and removes the EMBEDDED dependency. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-06crypto: testmgr - Fix test disabling optionHerbert Xu
This patch fixes a serious bug in the test disabling patch where it can cause an spurious load of the cryptomgr module even when it's compiled in. It also negates the test disabling option so that its absence causes tests to be enabled. The Kconfig option is also now behind EMBEDDED. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-06crypto: hash - Fix handling of small unaligned buffersSzilveszter Ördög
If a scatterwalk chain contains an entry with an unaligned offset then hash_walk_next() will cut off the next step at the next alignment point. However, if the entry ends before the next alignment point then we a loop, which leads to a kernel oops. Fix this by checking whether the next aligment point is before the end of the current entry. Signed-off-by: Szilveszter Ördög <slipszi@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits) random: Reorder struct entropy_store to remove padding on 64bits padata: update API documentation padata: Remove padata_get_cpumask crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier crypto: pcrypt - Rename pcrypt_instance padata: Pass the padata cpumasks to the cpumask_change_notifier chain padata: Rearrange set_cpumask functions padata: Rename padata_alloc functions crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask padata: Check for valid cpumasks padata: Allocate cpumask dependend recources in any case padata: Fix cpu index counting crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used) pcrypt: Added sysfs interface to pcrypt padata: Added sysfs primitives to padata subsystem padata: Make two separate cpumasks padata: update documentation padata: simplify serialization mechanism padata: make padata_do_parallel to return zero on success padata: Handle empty padata cpumasks ...
2010-07-31crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifierSteffen Klassert
The padata cpumask change notifier passes a padata_cpumask to the notifier chain. So we use this cpumask instead of asking padata for the cpumask. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-31crypto: pcrypt - Rename pcrypt_instanceSteffen Klassert
In the crypto-layer an instance refers usually to a crypto instance. The struct pcrypt_instance is not related to a crypto instance. It rather contains the padata informations, so we rename it to padata_pcrypt. The functions that handle this struct are renamed accordingly. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-31padata: Rename padata_alloc functionsSteffen Klassert
We rename padata_alloc to padata_alloc_possible because this function allocates a padata_instance and uses the cpu_possible mask for parallel and serial workers. Also we rename __padata_alloc to padata_alloc to avoid to export underlined functions. Underlined functions are considered to be private to padata. Users are updated accordingly. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-26crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumaskSteffen Klassert
If the callback cpumask is empty, we crash with a division by zero when we try to calculate a callback cpu. So we don't update the callback cpu in pcrypt_do_parallel if the callback cpumask is empty. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-19pcrypt: Added sysfs interface to pcryptDan Kruchinin
Added sysfs interface to pcrypt. Now pcrypt subsystem creates two sysfs directories with corresponding padata sysfs objects: /sys/kernel/pcrypt/[pencrypt|pdecrypt] Signed-off-by: Dan Kruchinin <dkruchinin@acm.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-19padata: Make two separate cpumasksDan Kruchinin
The aim of this patch is to make two separate cpumasks for padata parallel and serial workers respectively. It allows user to make more thin and sophisticated configurations of padata framework. For example user may bind parallel and serial workers to non-intersecting CPU groups to gain better performance. Also each padata instance has notifiers chain for its cpumasks now. If either parallel or serial or both masks were changed all interested subsystems will get notification about that. It's especially useful if padata user uses algorithm for callback CPU selection according to serial cpumask. Signed-off-by: Dan Kruchinin <dkruchinin@acm.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-14padata: make padata_do_parallel to return zero on successSteffen Klassert
To return -EINPROGRESS on success in padata_do_parallel was considered to be odd. This patch changes this to return zero on success. Also the only user of padata, pcrypt is adapted to convert a return of zero to -EINPROGRESS within the crypto layer. This also removes the pcrypt fallback if padata_do_parallel was called on a not running padata instance as we can't handle it anymore. This fallback was unused, so it's save to remove it. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-07-14padata: Check for valid padata instance on startSteffen Klassert
This patch introduces the PADATA_INVALID flag which is checked on padata start. This will be used to mark a padata instance as invalid, if the padata cpumask does not intersect with the active cpumask. we change padata_start to return an error if the PADATA_INVALID is set. Also we adapt the only padata user, pcrypt to this change. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-23crypto: skcipher - avoid NULL dereferenceJiri Slaby
Stanse found a potential NULL dereference in ablkcipher_next_slow. Even though kmalloc fails, its retval is dereferenced later. Return from that function properly earlier. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03crypto: twofish: Rename twofish to twofish_generic and add an aliasJoachim Fritschi
This fixes the broken autoloading of the corresponding twofish assembler ciphers on x86 and x86_64 if they are available. The module name of the generic implementation was in conflict with the alias in the assembler modules. The generic twofish c implementation is renamed to twofish_generic according to the other algorithms with assembler implementations and an module alias is added for 'twofish'. You can now load 'twofish' giving you the best implementation by priority, 'twofish-generic' to get the c implementation or 'twofish-asm' to get the assembler version of cipher. Signed-off-by: Joachim Fritschi <jfritschi@freenet.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03crypto: testmgr - add an option to disable cryptoalgos' self-testsAlexander Shishkin
By default, CONFIG_CRYPTO_MANAGER_TESTS will be enabled and thus self-tests will still run, but it is now possible to disable them to gain some time during bootup. Signed-off-by: Alexander Shishkin <virtuoso@slind.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-06-03crypto: pcomp - Fix illegal Kconfig configurationHerbert Xu
The PCOMP Kconfig entry current allows the following combination which is illegal: ZLIB=y PCOMP=y ALGAPI=m ALGAPI2=y MANAGER=m MANAGER2=m This patch fixes this by adding PCOMP2 so that PCOMP can select ALGAPI to propagate the setting to MANAGER2. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/crypto-2.6Herbert Xu
2010-05-26crypto: Use ERR_CASTJulia Lawall
Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)). The former makes more clear what is the purpose of the operation, which otherwise looks like a no-op. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T x; identifier f; @@ T f (...) { <+... - ERR_PTR(PTR_ERR(x)) + x ...+> } @@ expression x; @@ - ERR_PTR(PTR_ERR(x)) + ERR_CAST(x) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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