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* crypto: hash - Make setkey optionalHerbert Xu2008-12-252-1/+10
| | | | | | | Since most cryptographic hash algorithms have no keys, this patch makes the setkey function optional for ahash and shash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Validate output length in (de)compression testsGeert Uytterhoeven2008-12-251-0/+16
| | | | | | | | | | | When self-testing (de)compression algorithms, make sure the actual size of the (de)compressed output data matches the expected output size. Otherwise, in case the actual output size would be smaller than the expected output size, the subsequent buffer compare test would still succeed, and no error would be reported. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: remove uses of __constant_{endian} helpersHarvey Harrison2008-12-252-45/+45
| | | | | | | Base versions handle constant folding just fine. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Fix error flow of test_compIngo Molnar2008-12-251-1/+1
| | | | | | | | | | | | | | | | | This warning: crypto/testmgr.c: In function ‘test_comp’: crypto/testmgr.c:829: warning: ‘ret’ may be used uninitialized in this function triggers because GCC correctly notices that in the ctcount == 0 && dtcount != 0 input condition case this function can return an undefined value, if the second loop fails. Remove the shadowed 'ret' variable from the second loop that was probably unintended. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Use softirq kernel mapping in bh contextEvgeniy Polyakov2008-12-251-3/+5
| | | | | | | | Use KM_SOFTIRQ instead of KM_IRQ in tasklet context. Added bug_on on input no-page condition. Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Fix queue managementEvgeniy Polyakov2008-12-251-93/+81
| | | | | | | | | Fix queue management. Change ring size and perform its check not one after another descriptor, but using stored pointers to the last checked descriptors. Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Remove some unused cruftPatrick McHardy2008-12-251-31/+1
| | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Fix queue processingPatrick McHardy2008-12-251-1/+8
| | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Fix request context corruptionPatrick McHardy2008-12-251-44/+56
| | | | | | | | | | | HIFN uses the transform context to store per-request data, which breaks when more than one request is outstanding. Move per request members from struct hifn_context to a new struct hifn_request_context and convert the code to use this. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Don't copy src sg listPatrick McHardy2008-12-251-42/+33
| | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn_795x - Fix DMA setupPatrick McHardy2008-12-251-84/+81
| | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ansi_cprng - fix inverted DT increment routineJarod Wilson2008-12-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ANSI X9.31 PRNG docs aren't particularly clear on how to increment DT, but empirical testing shows we're incrementing from the wrong end. A 10,000 iteration Monte Carlo RNG test currently winds up not getting the expected result. From http://csrc.nist.gov/groups/STM/cavp/documents/rng/RNGVS.pdf : # CAVS 4.3 # ANSI931 MCT [X9.31] [AES 128-Key] COUNT = 0 Key = 9f5b51200bf334b5d82be8c37255c848 DT = 6376bbe52902ba3b67c925fa701f11ac V = 572c8e76872647977e74fbddc49501d1 R = 48e9bd0d06ee18fbe45790d5c3fc9b73 Currently, we get 0dd08496c4f7178bfa70a2161a79459a after 10000 loops. Inverting the DT increment routine results in us obtaining the expected result of 48e9bd0d06ee18fbe45790d5c3fc9b73. Verified on both x86_64 and ppc64. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* libcrc32c: Select CRYPTO in KconfigHerbert Xu2008-12-251-0/+1
| | | | | | | Selecting CRYPTO_CRC32C is not enough as CRYPTO which CRYPTO_CRC32C depends on may be disabled. This patch adds the select on CRYPTO. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ansi_cprng - Avoid incorrect extra call to _get_more_prng_bytesJarod Wilson2008-12-251-6/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While working with some FIPS RNGVS test vectors yesterday, I discovered a little bug in the way the ansi_cprng code works right now. For example, the following test vector (complete with expected result) from http://csrc.nist.gov/groups/STM/cavp/documents/rng/RNGVS.pdf ... Key = f3b1666d13607242ed061cabb8d46202 DT = e6b3be782a23fa62d71d4afbb0e922fc V = f0000000000000000000000000000000 R = 88dda456302423e5f69da57e7b95c73a ...when run through ansi_cprng, yields an incorrect R value of e2afe0d794120103d6e86a2b503bdfaa. If I load up ansi_cprng w/dbg=1 though, it was fairly obvious what was going wrong: ----8<---- getting 16 random bytes for context ffff810033fb2b10 Calling _get_more_prng_bytes for context ffff810033fb2b10 Input DT: 00000000: e6 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc Input I: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Input V: 00000000: f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 tmp stage 0: 00000000: e6 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc tmp stage 1: 00000000: f4 8e cb 25 94 3e 8c 31 d6 14 cd 8a 23 f1 3f 84 tmp stage 2: 00000000: 8c 53 6f 73 a4 1a af d4 20 89 68 f4 58 64 f8 be Returning new block for context ffff810033fb2b10 Output DT: 00000000: e7 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc Output I: 00000000: 04 8e cb 25 94 3e 8c 31 d6 14 cd 8a 23 f1 3f 84 Output V: 00000000: 48 89 3b 71 bc e4 00 b6 5e 21 ba 37 8a 0a d5 70 New Random Data: 00000000: 88 dd a4 56 30 24 23 e5 f6 9d a5 7e 7b 95 c7 3a Calling _get_more_prng_bytes for context ffff810033fb2b10 Input DT: 00000000: e7 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc Input I: 00000000: 04 8e cb 25 94 3e 8c 31 d6 14 cd 8a 23 f1 3f 84 Input V: 00000000: 48 89 3b 71 bc e4 00 b6 5e 21 ba 37 8a 0a d5 70 tmp stage 0: 00000000: e7 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc tmp stage 1: 00000000: 80 6b 3a 8c 23 ae 8f 53 be 71 4c 16 fc 13 b2 ea tmp stage 2: 00000000: 2a 4d e1 2a 0b 58 8e e6 36 b8 9c 0a 26 22 b8 30 Returning new block for context ffff810033fb2b10 Output DT: 00000000: e8 b3 be 78 2a 23 fa 62 d7 1d 4a fb b0 e9 22 fc Output I: 00000000: c8 e2 01 fd 9f 4a 8f e5 e0 50 f6 21 76 19 67 9a Output V: 00000000: ba 98 e3 75 c0 1b 81 8d 03 d6 f8 e2 0c c6 54 4b New Random Data: 00000000: e2 af e0 d7 94 12 01 03 d6 e8 6a 2b 50 3b df aa returning 16 from get_prng_bytes in context ffff810033fb2b10 ----8<---- The expected result is there, in the first "New Random Data", but we're incorrectly making a second call to _get_more_prng_bytes, due to some checks that are slightly off, which resulted in our original bytes never being returned anywhere. One approach to fixing this would be to alter some byte_count checks in get_prng_bytes, but it would mean the last DEFAULT_BLK_SZ bytes would be copied a byte at a time, rather than in a single memcpy, so a slightly more involved, equally functional, and ultimately more efficient way of fixing this was suggested to me by Neil, which I'm submitting here. All of the RNGVS ANSI X9.31 AES128 VST test vectors I've passed through ansi_cprng are now returning the expected results with this change. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: md4 - Use ARRAY_SIZEJulia Lawall2008-12-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | ARRAY_SIZE is more concise to use when the size of an array is divided by the size of its type or the size of its first element. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @i@ @@ #include <linux/kernel.h> @depends on i using "paren.iso"@ type T; T[] E; @@ - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* libcrc32c: Add crc32c_le macroHerbert Xu2008-12-251-0/+3
| | | | | | | The bnx2x driver actually uses the crc32c_le name so this patch restores the crc32c_le symbol through a macro. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* libcrc32c: Fix "crc32c undefined" compilation errorAdrian-Ken Rueegsegger2008-12-251-0/+2
| | | | | | | | | | | | | | | | The latest shash changes leave crc32c undefined: [...] Building modules, stage 2. MODPOST 1381 modules ERROR: "crc32c" [net/sctp/sctp.ko] undefined! ERROR: "crc32c" [net/ipv4/netfilter/nf_nat_proto_sctp.ko] undefined! Adding EXPORT_SYMBOL(crc32c) to lib/libcrc32c.c fixes the compile error. This patch has been compile-tested only. Signed-off-by: Adrian-Ken Rueegsegger <rueegsegger@swiss-it.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* libcrc32c: Move implementation to crypto crc32cHerbert Xu2008-12-255-159/+146
| | | | | | | | | | | | | | This patch swaps the role of libcrc32c and crc32c. Previously the implementation was in libcrc32c and crc32c was a wrapper. Now the code is in crc32c and libcrc32c just calls the crypto layer. The reason for the change is to tap into the algorithm selection capability of the crypto API so that optimised implementations such as the one utilising Intel's CRC32C instruction can be used where available. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: crc32c - Test descriptor context formatHerbert Xu2008-12-251-1/+50
| | | | | | | | This patch adds a test for the requirement that all crc32c algorithms shall store the partial result in the first four bytes of the descriptor context. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: crc32c-intel - Switch to shashHerbert Xu2008-12-251-54/+47
| | | | | | This patch changes crc32c-intel to the new shash interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: crc32c - Switch to shashHerbert Xu2008-12-251-132/+53
| | | | | | This patch changes crc32c to the new shash interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hash - Export shash through hashHerbert Xu2008-12-257-6/+144
| | | | | | | | This patch allows shash algorithms to be used through the old hash interface. This is a transitional measure so we can convert the underlying algorithms to shash before converting the users across. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: api - Call type show function before legacy for procHerbert Xu2008-12-251-7/+13
| | | | | | | | | | This patch makes /proc/crypto call the type-specific show function if one is present before calling the legacy show functions for cipher/digest/compress. This allows us to reuse the type values for those legacy types. In particular, hash and digest will share one type value while shash is phased in as the default hash type. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hash - Add import/export interfaceHerbert Xu2008-12-255-5/+50
| | | | | | | | | | | | It is often useful to save the partial state of a hash function so that it can be used as a base for two or more computations. The most prominent example is HMAC where all hashes start from a base determined by the key. Having an import/export interface means that we only have to compute that base once rather than for each message. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hash - Export shash through ahashHerbert Xu2008-12-252-1/+144
| | | | | | | | This patch allows shash algorithms to be used through the ahash interface. This is required before we can convert digest algorithms over to shash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hash - Add shash interfaceHerbert Xu2008-12-255-0/+353
| | | | | | | | | | | | | | | | | | | | | | | | The shash interface replaces the current synchronous hash interface. It improves over hash in two ways. Firstly shash is reentrant, meaning that the same tfm may be used by two threads simultaneously as all hashing state is stored in a local descriptor. The other enhancement is that shash no longer takes scatter list entries. This is because shash is specifically designed for synchronous algorithms and as such scatter lists are unnecessary. All existing hash users will be converted to shash once the algorithms have been completely converted. There is also a new finup function that combines update with final. This will be extended to ahash once the algorithm conversion is done. This is also the first time that an algorithm type has their own registration function. Existing algorithm types will be converted to this way in due course. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: api - Rebirth of crypto_alloc_tfmHerbert Xu2008-12-254-1/+123
| | | | | | | | | | | | | | | This patch reintroduces a completely revamped crypto_alloc_tfm. The biggest change is that we now take two crypto_type objects when allocating a tfm, a frontend and a backend. In fact this simply formalises what we've been doing behind the API's back. For example, as it stands crypto_alloc_ahash may use an actual ahash algorithm or a crypto_hash algorithm. Putting this in the API allows us to do this much more cleanly. The existing types will be converted across gradually. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: api - Move type exit function into crypto_tfmHerbert Xu2008-12-253-8/+8
| | | | | | | | | | | | | | | | | | | | | | | The type exit function needs to undo any allocations done by the type init function. However, the type init function may differ depending on the upper-level type of the transform (e.g., a crypto_blkcipher instantiated as a crypto_ablkcipher). So we need to move the exit function out of the lower-level structure and into crypto_tfm itself. As it stands this is a no-op since nobody uses exit functions at all. However, all cases where a lower-level type is instantiated as a different upper-level type (such as blkcipher as ablkcipher) will be converted such that they allocate the underlying transform and use that instead of casting (e.g., crypto_ablkcipher casted into crypto_blkcipher). That will need to use a different exit function depending on the upper-level type. This patch also allows the type init/exit functions to call (or not) cra_init/cra_exit instead of always calling them from the top level. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: ansi_cprng - Allow resetting of DT valueNeil Horman2008-12-251-3/+13
| | | | | | | | | | | | | | This is a patch that was sent to me by Jarod Wilson, marking off my outstanding todo to allow the ansi cprng to set/reset the DT counter value in a cprng instance. Currently crytpo_rng_reset accepts a seed byte array which is interpreted by the ansi_cprng as a {V key} tuple. This patch extends that tuple to now be {V key DT}, with DT an optional value during reset. This patch also fixes a bug we noticed in which the offset of the key area of the seed is started at DEFAULT_PRNG_KSZ rather than DEFAULT_BLK_SZ as it should be. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: padlock - Avoid resetting cword on successive operationsHerbert Xu2008-12-251-10/+42
| | | | | | | | | | | | | | | | | | | Resetting the control word is quite expensive. Fortunately this isn't an issue for the common operations such as CBC and ECB as the whole operation is done through a single call. However, modes such as LRW and XTS have to call padlock over and over again for one operation which really hurts if each call resets the control word. This patch uses an idea by Sebastian Siewior to store the last control word used on a CPU and only reset the control word if that changes. Note that any task switch automatically resets the control word so we only need to be accurate with regard to the stored control word when no task switches occur. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: crc32c-intel - Update copyright headKent Liu2008-12-251-6/+14
| | | | | | | | The original copyright head for crc32c-intel.c is incorrect. Please merge the patch to update it. Signed-Off-By: Kent Liu <kent.liu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: talitos - Preempt overflow interrupts off-by-one fixVishnu Suresh2008-12-251-1/+1
| | | | | | | | | | | | In commit ec6644d6325b5a38525f1d5b20fd4bf7db05cf2a "crypto: talitos - Preempt overflow interrupts", the test in atomic_inc_not_zero was interpreted by the author to be applied after the increment operation (not before). This off-by-one fix prevents overflow error interrupts from occurring when requests are frequent and large enough to do so. Signed-off-by: Vishnu Suresh <Vishnu@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: camellia - use kernel-provided bitops, unaligned accessHarvey Harrison2008-12-251-48/+36
| | | | | | | | | | | | | | | | | | | | | | | | Remove the private implementation of 32-bit rotation and unaligned access with byteswapping. As a bonus, fixes sparse warnings: crypto/camellia.c:602:2: warning: cast to restricted __be32 crypto/camellia.c:603:2: warning: cast to restricted __be32 crypto/camellia.c:604:2: warning: cast to restricted __be32 crypto/camellia.c:605:2: warning: cast to restricted __be32 crypto/camellia.c:710:2: warning: cast to restricted __be32 crypto/camellia.c:711:2: warning: cast to restricted __be32 crypto/camellia.c:712:2: warning: cast to restricted __be32 crypto/camellia.c:713:2: warning: cast to restricted __be32 crypto/camellia.c:714:2: warning: cast to restricted __be32 crypto/camellia.c:715:2: warning: cast to restricted __be32 crypto/camellia.c:716:2: warning: cast to restricted __be32 crypto/camellia.c:717:2: warning: cast to restricted __be32 [Thanks to Tomoyuki Okazaki for spotting the typo] Tested-by: Carlo E. Prelz <fluido@fluido.as> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: testmgr - Trigger a panic when self test fails in FIPS modeNeil Horman2008-12-251-1/+6
| | | | | | | | | | | | | The FIPS specification requires that should self test for any supported crypto algorithm fail during operation in fips mode, we need to prevent the use of any crypto functionality until such time as the system can be re-initialized. Seems like the best way to handle that would be to panic the system if we were in fips mode and failed a self test. This patch implements that functionality. I've built and run it successfully. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: talitos - Perform auth check in h/w if on sec 2.1 and aboveKim Phillips2008-12-252-44/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SEC version 2.1 and above adds the capability to do the IPSec ICV memcmp in h/w. Results of the cmp are written back in the descriptor header, along with the done status. A new callback is added that checks these ICCR bits instead of performing the memcmp on the core, and is enabled by h/w capability. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> After testing on different parts, another condition was added before using h/w auth check because different SEC revisions require different handling. The SEC 3.0 allows a more flexible link table where the auth data can span separate link table entries. The SEC 2.4/2.1 does not support this case. So a test was added in the decrypt routine for a fragmented case; the h/w auth check is disallowed for revisions not having the extent in the link table; in this case the hw auth check is done by software. A portion of a previous change for SEC 3.0 link table handling was removed since it became dead code with the hw auth check supported. This seems to be the best compromise for using hw auth check on supporting SEC revisions; it keeps the link table logic simpler for the fragmented cases. Signed-off-by: Lee Nipper <lee.nipper@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: talitos - Implement done interrupt mitigationLee Nipper2008-12-252-9/+24
| | | | | | | | | | | | | In talitos_interrupt, upon one done interrupt, mask further done interrupts, and ack only any error interrupt. In talitos_done, unmask done interrupts after completing processing. In flush_channel, ack each done channel processed. Keep done overflow interrupts masked because even though each pkt is ack'ed, a few done overflows still occur. Signed-off-by: Lee Nipper <lee.nipper@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: talitos - Pass correct interrupt status to error handlerKim Phillips2008-12-251-9/+3
| | | | | | | | | | | | | Since we ack early, the re-read interrupt status in talitos_error may be already updated with a new value. Pass the error ISR value directly in order to report and handle the error based on the correct error status. Also remove unused error tasklet. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Lee Nipper <lee.nipper@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* crypto: hifn - Disable driver when physical size exceeds 32 bitsEvgeniy Polyakov2008-12-251-0/+5
| | | | | | | | | | | | | | | | | | | On Tue, Sep 23, 2008 at 08:06:32PM +0200, Dimitri Puzin (max@psycast.de) wrote: > With this patch applied it still doesn't work as expected. The overflow > messages are gone however syslog shows > [ 120.924266] hifn0: abort: c: 0, s: 1, d: 0, r: 0. > when doing cryptsetup luksFormat as in original e-mail. At this point > cryptsetup hangs and can't be killed with -SIGKILL. I've attached > SysRq-t dump of this condition. Yes, I was wrong with the patch: HIFN does not support 64-bit addresses afaics. Attached patch should not allow HIFN to be registered on 64-bit arch, so crypto layer will fallback to the software algorithms. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* Linux 2.6.28v2.6.28Linus Torvalds2008-12-241-1/+1
| | | | Happy holidays..
* Merge branch 'for_linus' of ↵Linus Torvalds2008-12-2416-42/+49
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (9920): em28xx: fix NULL pointer dereference in call to VIDIOC_INT_RESET command V4L/DVB (9908a): MAINTAINERS: mark linux-uvc-devel as subscribers only V4L/DVB (9906): v4l2-compat: test for unlocked_ioctl as well. V4L/DVB (9885): drivers/media Kconfig's: fix bugzilla #12204 V4L/DVB (9875): gspca - main: Fix vidioc_s_jpegcomp locking. V4L/DVB (9781): [PATCH] Cablestar 2 I2C retries (fix CableStar2 support) V4L/DVB (9780): dib0700: Stop repeating after user stops pushing button
| * V4L/DVB (9920): em28xx: fix NULL pointer dereference in call to ↵Devin Heitmueller2008-12-231-1/+2
| | | | | | | | | | | | | | | | | | | | VIDIOC_INT_RESET command Fix a NULL pointer dereference that would occur if the video decoder tied to the em28xx supports the VIDIOC_INT_RESET call (for example: the cx25840 driver) Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9908a): MAINTAINERS: mark linux-uvc-devel as subscribers onlyJiri Slaby2008-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | Posting to linux-uvc-devel is restricted to members. You can subscribe to the list at ... MAINTAINERS | 2 +- Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9906): v4l2-compat: test for unlocked_ioctl as well.Hans Verkuil2008-12-161-1/+1
| | | | | | | | | | | | | | | | | | The v4l_compat_ioctl32() function only tested for the presence of the ioctl op, not for unlocked_ioctl. So it would always return an error when used with drivers that use unlocked_ioctl instead of ioctl. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9885): drivers/media Kconfig's: fix bugzilla #12204Mauro Carvalho Chehab2008-12-169-33/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the tuner modules were moved to common/tuners, a separate customize option were added for tuners. However, the automatic selection of the tuners were still using the older option. This causes that the automatic selection to fail, if DVB_FE_CUSTOMISE is selected. Also, since those tuners are now under MEDIA_TUNER_CUSTOMIZE menu, if you unset MEDIA_TUNER_CUSTOMIZE, you can't manually select the tuners. This patch fixes this error by replacing DVB_FE_CUSTOMISE by MEDIA_TUNER_CUSTOMIZE on all places were a tuner is selected. The patch were generated by this small script: for i in `find drivers/media -name Kconfig`; do cat $i|perl -ne 's/(MEDIA_TUNER.*)DVB_FE_CUSTOMISE/\1MEDIA_TUNER_CUSTOMIZE/; print $_' >a mv a $i done Also, manually reordered the tuner entries. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9875): gspca - main: Fix vidioc_s_jpegcomp locking.Jim Paris2008-12-161-2/+2
| | | | | | | | | | | | Signed-off-by: Jim Paris <jim@jtan.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9781): [PATCH] Cablestar 2 I2C retries (fix CableStar2 support)Antti Seppälä2008-12-162-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At some point the Flexcop driver was changed to support newer Flexcop cards. These modifications however broke the detection of Cablestar 2 DVB-C cards. The reason is that the earlier version of the driver used to retry unsuccessful i2c operations. The demodulator of Cablestar 2 cards (stv0297) seems to be very dependent on these retries and adding them back fixes Cablestar detection. This patch restores this behaviour for the CableStar2. Signed-off-by: Antti Seppälä <a.seppala@gmail.com> Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * V4L/DVB (9780): dib0700: Stop repeating after user stops pushing buttonDevin Heitmueller2008-12-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A user noticed that there would continue to be 4-6 keypresses even after the user stopped holding down the button. This was because we were not reading the bulk pipe faster than the firmware was injecting information, which would result in a backlog. Make the query interval faster, and increase the number of cycles before we start repeating to compensate. Thanks to Knud Poulsen <knud.poulsen@nokia.com> for pointing this out. Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com> Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-12-241-0/+1
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: disable X86_PTRACE_BTS
| * | x86: disable X86_PTRACE_BTSIngo Molnar2008-12-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | there's a new ptrace arch level feature in .28: config X86_PTRACE_BTS bool "Branch Trace Store" it has broken fork() handling: the old DS area gets copied over into a new task without clearing it. Fixes exist but they came too late: c5dee61: x86, bts: memory accounting bf53de9: x86, bts: add fork and exit handling and are queued up for v2.6.29. This shows that the facility is still not tested well enough to release into a stable kernel - disable it for now and reactivate in .29. In .29 the hardware-branch-tracer will use the DS/BTS facilities too - hopefully resulting in better code. Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-12-241-0/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Add missing terminators in patch_sigmatel.c
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