kernel/crypto/scatterwalk.c, branch linux-2.6.34.y

crypto: scatterwalk - Avoid flush_dcache_page on slab pages

2009-02-09T03:30:25Z

It's illegal to call flush_dcache_page on slab pages on a number of architectures. So this patch avoids doing so if PageSlab is true. In future we can move the flush_dcache_page call to those page cache users that actually need it. Reported-by: David S. Miller Signed-off-by: Herbert Xu

[CRYPTO] scatterwalk: Handle zero nbytes in scatterwalk_map_and_copy

2008-01-10T21:16:54Z

It's better to return silently than crash and burn when someone feeds us a zero length. In particular the null digest algorithm when used as part of authenc will do that to us. Signed-off-by: Herbert Xu

[CRYPTO] scatterwalk: Restore custom sg chaining for now

2008-01-10T21:16:33Z

Unfortunately the generic chaining hasn't been ported to all architectures yet, and notably not s390. So this patch restores the chainging that we've been using previously which does work everywhere. Signed-off-by: Herbert Xu

[CRYPTO] scatterwalk: Move scatterwalk.h to linux/crypto

2008-01-10T21:16:32Z

The scatterwalk infrastructure is used by algorithms so it needs to move out of crypto for future users that may live in drivers/crypto or asm/*/crypto. Signed-off-by: Herbert Xu

[CRYPTO] scatterwalk: Use generic scatterlist chaining

2008-01-10T21:16:14Z

This patch converts the crypto scatterwalk code to use the generic scatterlist chaining rather the version specific to crypto. Signed-off-by: Herbert Xu

[SG] Update crypto/ to sg helpers

2007-10-22T17:40:16Z

Signed-off-by: Jens Axboe

crypto: don't pollute the global namespace with sg_next()

2007-10-16T09:07:09Z

It's a subsystem function, prefix it as such. Acked-by: Herbert Xu Signed-off-by: Jens Axboe

[CRYPTO] api: Kill crypto_km_types

2007-10-10T23:55:44Z

When scatterwalk is built as a module digest.c was broken because it requires the crypto_km_types structure which is in scatterwalk. This patch removes the crypto_km_types structure by encoding the logic into crypto_kmap_type directly. In fact, this even saves a few bytes of code (not to mention the data structure itself) on i386 which is about the only place where it's needed. Signed-off-by: Herbert Xu

[CRYPTO] scatterwalk: Add scatterwalk_map_and_copy

2007-10-10T23:55:42Z

This patch adds the function scatterwalk_map_and_copy which reads or writes a chunk of data from a scatterlist at a given offset. It will be used by authenc which would read/write the authentication data at the end of the cipher/plain text. Signed-off-by: Herbert Xu

[CRYPTO] api: Flush the current page right than the next

2007-03-31T02:58:20Z

On platforms where flush_dcache_page is needed we're currently flushing the next page right than the one we've just processed. This patch fixes the off-by-one error. Signed-off-by: Herbert Xu