kernel.git/arch/x86/crypto, branch linux-2.6.37.y

crypto: ghash-intel - ghash-clmulni-intel_glue needs err.h

2010-12-15T11:44:08Z

Add missing header file: arch/x86/crypto/ghash-clmulni-intel_glue.c:256: error: implicit declaration of function 'IS_ERR' arch/x86/crypto/ghash-clmulni-intel_glue.c:257: error: implicit declaration of function 'PTR_ERR' Signed-off-by: Randy Dunlap Signed-off-by: Herbert Xu

Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2010-05-03T03:28:58Z

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32Z

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 Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn

crypto: aesni-intel - Fix CTR optimization build failure with gas 2.16.1

2010-03-13T08:28:42Z

Andrew Morton reported that AES-NI CTR optimization failed to compile with gas 2.16.1, the error message is as follow: arch/x86/crypto/aesni-intel_asm.S: Assembler messages: arch/x86/crypto/aesni-intel_asm.S:752: Error: suffix or operands invalid for `movq' arch/x86/crypto/aesni-intel_asm.S:753: Error: suffix or operands invalid for `movq' To fix this, a gas macro is defined to assemble movq with 64bit general purpose registers and XMM registers. The macro will generate the raw .byte sequence for needed instructions. Reported-by: Andrew Morton Signed-off-by: Huang Ying Signed-off-by: Herbert Xu

crypto: aesni-intel - Add AES-NI accelerated CTR mode

2010-03-10T10:28:55Z

To take advantage of the hardware pipeline implementation of AES-NI instructions. CTR mode cryption is implemented in ASM to schedule multiple AES-NI instructions one after another. This way, some latency of AES-NI instruction can be eliminated. Performance testing based on dm-crypt should 50% reduction of ecryption/decryption time. Signed-off-by: Huang Ying Signed-off-by: Herbert Xu

tree-wide: Assorted spelling fixes

2010-02-09T10:13:56Z

In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack Cc: Joe Perches Cc: Junio C Hamano Signed-off-by: Jiri Kosina

Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

2009-12-01T07:16:22Z

crypto: ghash-clmulni-intel - Put proper .data section in place

2009-11-23T12:19:47Z

Lbswap_mask, Lpoly and Ltwo_one should clearly belong to .data section, not .text. Signed-off-by: Jiri Kosina Signed-off-by: Herbert Xu

crypto: ghash-clmulni-intel - Use gas macro for PCLMULQDQ-NI and PSHUFB

2009-11-23T11:55:22Z

Old binutils do not support PCLMULQDQ-NI and PSHUFB, to make kernel can be compiled by them, .byte code is used instead of assembly instructions. But the readability and flexibility of raw .byte code is not good. So corresponding assembly instruction like gas macro is used instead. Signed-off-by: Huang Ying Signed-off-by: Herbert Xu

crypto: aesni-intel - Use gas macro for AES-NI instructions

2009-11-23T11:54:06Z

Old binutils do not support AES-NI instructions, to make kernel can be compiled by them, .byte code is used instead of AES-NI assembly instructions. But the readability and flexibility of raw .byte code is not good. So corresponding assembly instruction like gas macro is used instead. Signed-off-by: Huang Ying Signed-off-by: Herbert Xu