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path: root/drivers/crypto
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2010-05-22Merge remote branch 'origin' into secretlab/next-devicetreeGrant Likely
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-22of: Remove duplicate fields from of_platform_driverGrant Likely
.name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-19crypto: talitos - add support for sha224Kim Phillips
SEC h/w versions 2.1 and above support sha224 via explicit instruction. Performing sha224 ahashes on earlier versions is still possible because they support sha256 (sha224 is sha256 with different initial constants and a different truncation length). We do this by overriding hardware context self-initialization, and perform it manually in s/w instead. Thanks to Lee for his fixes for correct execution on actual sec2.0 h/w. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off by: Lee Nipper <lee.nipper@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: talitos - add hash algorithmsLee Nipper
Add the following alorithms to talitos: md5, sha1, sha256, sha384, sha512. These are all type ahash. Signed-off-by: Lee Nipper <lee.nipper@gmail.com> Acked-By: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: talitos - second prepare step for adding ahash algorithmsLee Nipper
Used talitos_alg_template in talitos_crypto_alg so that it will accommodate ahash algorithms. Added some preparation code for ahash allocation and removal. No actual algorithms yet. Signed-off-by: Lee Nipper <lee.nipper@gmail.com> Acked-By: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: talitos - prepare for adding ahash algorithms Lee Nipper
No functional changes. Use a union in talitos_alg_template for the crypto_alg so that we can add a member later for ahash_alg. Signed-off-by: Lee Nipper <lee.nipper@gmail.com> Acked-By: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: n2 - Add Niagara2 crypto driverDavid S. Miller
Current deficiencies: 1) No HMAC hash support yet. 2) Although the algs are registered as ASYNC they always run synchronously. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-19crypto: hifn_795x - Rename ablkcipher_walk to hifn_cipher_walkDavid S. Miller
This is in preparation for the generic ablkcipher_walk helpers that will be added to the crypto layer. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-18of: Always use 'struct device.of_node' to get device node pointer.Grant Likely
The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-14crypto: mv_cesa - Use resource_sizeTobias Klauser
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-05-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Herbert Xu
2010-05-03crypto: omap - sha1 & md5 driverDmitry Kasatkin
Earlier kernel contained omap sha1 and md5 driver, which was not maintained, was not ported to new crypto APIs and removed from the source tree. - implements async crypto API using dma and cpu. - supports multiple sham instances if available - hmac - concurrent requests Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-19crypto: geode-aes - Fix some code style issuesChihau Chau
This fixes some code style issues like: - Use #include <linux/io.h> instead of <asm/io.h> and #include <linux/delay.h> instead of <asm/delay.h> - Use "foo *bar" instead of "foo * bar" - Add a space after the for or while sentence and before the open parenthesis '(' - Don't use assignments in a if condition Signed-off-by: Chihau Chau <chihau@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Add sha1 and hmac(sha1) async hash driversUri Simchoni
Add sha1 and hmac(sha1) async hash drivers Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Support processing of data from previous requestsUri Simchoni
Support processing of data from previous requests (as in hashing update/final requests). Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Make the copy-back of data optionalUri Simchoni
Make the copy-back of data optional (not done in hashing requests) Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Execute some code via function pointers rathr than direct ↵Uri Simchoni
calls Execute some code via function pointers rathr than direct calls (to allow customization in the hashing request) Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Rename a variable to a more suitable nameUri Simchoni
Rename a variable to a more suitable name Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Enqueue generic async requestsUri Simchoni
Enqueue generic async requests rather than ablkcipher requests in the driver's queue Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Fix situations where the src sglist spans more data than ↵Uri Simchoni
the request asks for Fix for situations where the source scatterlist spans more data than the request nbytes Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Fix situation where the dest sglist is organized ↵Uri Simchoni
differently than the source sglist Bugfix for situations where the destination scatterlist has a different buffer structure than the source scatterlist (e.g. source has one 2K buffer and dest has 2 1K buffers) Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Remove compiler warning in mv_cesa driverUri Simchoni
Remove compiler warning Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-04-13crypto: mv_cesa - Invoke the user callback from a softirq contextUri Simchoni
Invoke the user callback from a softirq context Signed-off-by: Uri Simchoni <uri@jdland.co.il> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo
implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-08Merge branch 'for-next' into for-linusJiri Kosina
Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
2010-02-26Merge 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: (31 commits) crypto: aes_generic - Fix checkpatch errors crypto: fcrypt - Fix checkpatch errors crypto: ecb - Fix checkpatch errors crypto: des_generic - Fix checkpatch errors crypto: deflate - Fix checkpatch errors crypto: crypto_null - Fix checkpatch errors crypto: cipher - Fix checkpatch errors crypto: crc32 - Fix checkpatch errors crypto: compress - Fix checkpatch errors crypto: cast6 - Fix checkpatch errors crypto: cast5 - Fix checkpatch errors crypto: camellia - Fix checkpatch errors crypto: authenc - Fix checkpatch errors crypto: api - Fix checkpatch errors crypto: anubis - Fix checkpatch errors crypto: algapi - Fix checkpatch errors crypto: blowfish - Fix checkpatch errors crypto: aead - Fix checkpatch errors crypto: ablkcipher - Fix checkpatch errors crypto: pcrypt - call the complete function on error ...
2010-02-05tree-wide: fix 'lenght' typo in comments and codeDaniel Mack
Some misspelled occurences of 'octet' and some comments were also fixed as I was on it. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Jiri Kosina <trivial@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-04crypto: geode-aes - Fix cip/blk confusionRoel Kluin
a crypto_cipher cip member was set where a crypto_cipher blk members should have been. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-02-02crypto: padlock-sha - Add import/export supportHerbert Xu
As the padlock driver for SHA uses a software fallback to perform partial hashing, it must implement custom import/export functions. Otherwise hmac which depends on import/export for prehashing will not work with padlock-sha. Reported-by: Wolfgang Walter <wolfgang.walter@stwm.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-01-17crypto: Make Open Firmware device id constantMárton Németh
From: Márton Németh <nm127@freemail.hu> The match_table field of the struct of_device_id is constant in <linux/of_platform.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Márton Németh <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2010-01-08crypto: geode-aes - access .cip instead of .blk in cipher modeRoel Kluin
The fallback code in cipher mode touch the union fallback.blk instead of fallback.cip. This is wrong because we use the cipher and not the blockcipher. This did not show any side effects yet because both types / structs contain the same element right now. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-12-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits) m68k: rename global variable vmalloc_end to m68k_vmalloc_end percpu: add missing per_cpu_ptr_to_phys() definition for UP percpu: Fix kdump failure if booted with percpu_alloc=page percpu: make misc percpu symbols unique percpu: make percpu symbols in ia64 unique percpu: make percpu symbols in powerpc unique percpu: make percpu symbols in x86 unique percpu: make percpu symbols in xen unique percpu: make percpu symbols in cpufreq unique percpu: make percpu symbols in oprofile unique percpu: make percpu symbols in tracer unique percpu: make percpu symbols under kernel/ and mm/ unique percpu: remove some sparse warnings percpu: make alloc_percpu() handle array types vmalloc: fix use of non-existent percpu variable in put_cpu_var() this_cpu: Use this_cpu_xx in trace_functions_graph.c this_cpu: Use this_cpu_xx for ftrace this_cpu: Use this_cpu_xx in nmi handling this_cpu: Use this_cpu operations in RCU this_cpu: Use this_cpu ops for VM statistics ... Fix up trivial (famous last words) global per-cpu naming conflicts in arch/x86/kvm/svm.c mm/slab.c
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina
Conflicts: kernel/irq/chip.c
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-03crypto: padlock-aes - Use the correct mask when checking whether copying is ↵Chuck Ebbert
required Masking with PAGE_SIZE is just wrong... Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-10-29percpu: make misc percpu symbols uniqueTejun Heo
This patch updates misc percpu related symbols such that percpu symbols are unique and don't clash with local symbols. This serves two purposes of decreasing the possibility of global percpu symbol collision and allowing dropping per_cpu__ prefix from percpu symbols. * drivers/crypto/padlock-aes.c: s/last_cword/paes_last_cword/ * drivers/lguest/x86/core.c: s/last_cpu/lg_last_cpu/ * drivers/s390/net/netiucv.c: rename the variable used in a macro to avoid clashing with percpu symbol * arch/mn10300/kernel/kprobes.c: replace current_ prefix with cur_ for static variables. Please note that percpu symbol current_kprobe can't be changed as it's used by generic code. Partly based on Rusty Russell's "alloc_percpu: rename percpu vars which cause name clashes" patch. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Chuck Ebbert <cebbert@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: David S. Miller <davem@davemloft.net> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com
2009-09-21crypto: padlock-sha - Fix stack alignmentHerbert Xu
The PadLock hardware requires the output buffer for SHA to be 128-bit aligned. We currentply place the buffer on the stack, and ask gcc to align it to 128 bits. That doesn't work on i386 because the kernel stack is only aligned to 32 bits. This patch changes the code to align the buffer by hand so that the hardware doesn't fault on unaligned buffers. Reported-by: Séguier Régis <rguier@e-teleport.net> Tested-by: Séguier Régis <rguier@e-teleport.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-13crypto: talitos - add support for 36 bit addressingKim Phillips
Enabling extended addressing in the h/w requires we always assign the extended address component (eptr) of the talitos h/w pointer. This is for e500 based platforms with large memories. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-13crypto: talitos - align locks on cache linesKim Phillips
align channel access locks onto separate cache lines (for performance reasons). This is done by placing per-channel variables into their own private struct, and using the cacheline_aligned attribute within that struct. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-13crypto: talitos - simplify hmac data size calculationKim Phillips
don't do request->src vs. assoc pointer math - it's the same as adding assoclen and ivsize (just with more effort). Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-08-10crypto: mv_cesa - Add support for Orion5X crypto engineSebastian Andrzej Siewior
This adds support for Marvell's Cryptographic Engines and Security Accelerator (CESA) which can be found on a few SoC. Tested with dm-crypt. Acked-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-16crypto: padlock - Fix hashing of partial blocksHerbert Xu
When we encounter partial blocks in finup, we'll invoke the xsha instruction with a bogus count that is not a multiple of the block size. This patch fixes it. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-15crypto: padlock - Fix compile error on i386Herbert Xu
The previous change to allow hashing from states other than the initial broke compilation on i386 because the inline assembly tried to squeeze a u64 into a 32-bit register. As we've already checked for 32-bit overflows we can simply truncate it to u32, or unsigned long so that we don't truncate at all on x86-64. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-15crypto: crypto4xx - Disable SHA implementationHerbert Xu
The crypto4xx SHA implementation keeps the hash state in the tfm data structure. This breaks a fundamental requirement of ahash implementations that they must be reentrant. This patch disables the broken implementation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-14crypto: crypto4xx - Switch to new style ahashHerbert Xu
This patch changes crypto4xx to use the new style ahash type. In particular, we now use ahash_alg to define ahash algorithms instead of crypto_alg. This is achieved by introducing a union that encapsulates the new type and the existing crypto_alg structure. They're told apart through a u32 field containing the type value. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-14crypto: crypto4xx - Use crypto_ahash_set_reqsizeHerbert Xu
This patch makes crypto4xx use crypto_ahash_set_reqsize to avoid accessing crypto_ahash directly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-14crypto: padlock - Switch sha to shashHerbert Xu
This patch converts the padlock-sha implementation to shash. In doing so the existing mechanism of storing the data until final is no longer viable as we do not have a way of allocating data in crypto_shash_init and then reliably freeing it. This is just as well because a better way of handling the problem is to hash everything but the last chunk using normal sha code and then provide the intermediate result to the padlock device. This is good enough because the primary application of padlock-sha is IPsec and there the data is laid out in the form of an hmac header followed by the rest of the packet. In essence we can provide all the data to the padlock as the hmac header only needs to be hashed once. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-11crypto: padlock - Use shash fallback for shaHerbert Xu
This patch changes padlock sha fallback to shash instead of hash. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-18crypto: padlock-aes - work around Nano CPU errata in CBC modeChuck Ebbert
Extend previous workarounds for the prefetch bug to cover CBC mode, clean up the code a bit. Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Acked-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-18crypto: padlock-aes - work around Nano CPU errata in ECB modeChuck Ebbert
The VIA Nano processor has a bug that makes it prefetch extra data during encryption operations, causing spurious page faults. Extend existing workarounds for ECB mode to copy the data to an temporary buffer to avoid the problem. Signed-off-by: Chuck Ebbert <cebbert@redhat.com> Acked-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>