user/sven/linux.git/Documentation/unaligned-memory-access.txt, branch v4.4

ether_addr_equal: Optimize implementation, remove unused compare_ether_addr

2013-12-06T21:37:43Z

Add a new check for CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS to reduce the number of or's used in the ether_addr_equal comparison to very slightly improve function performance. Simplify the ether_addr_equal_64bits implementation. Integrate and remove the zap_last_2bytes helper as it's now used only once. Remove the now unused compare_ether_addr function. Update the unaligned-memory-access documentation to remove the compare_ether_addr description and show how unaligned accesses could occur with ether_addr_equal. Signed-off-by: Joe Perches Signed-off-by: David S. Miller

introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol

2008-07-25T17:53:27Z

In many cases, especially in networking, it can be beneficial to know at compile time whether the architecture can do unaligned accesses efficiently. This patch introduces a new Kconfig symbol HAVE_EFFICIENT_UNALIGNED_ACCESS for that purpose and adds it to the powerpc and x86 architectures. Also add some documentation about alignment and networking, and especially one intended use of this symbol. Signed-off-by: Johannes Berg Acked-by: Sam Ravnborg Acked-by: Ingo Molnar [x86 architecture part] Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Fix typos in Documentation/unaligned-memory-access.txt

2008-04-02T22:28:19Z

This patch deletes a couple of superfluous word occurrences in the document Documentation/unaligned-memory-access.txt. Thanks to Sebastien Dugue for the remark about English usage. Signed-off-by: Dmitri Vorobiev Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Documentation about unaligned memory access

2008-02-06T18:41:07Z

Here's a document I wrote after figuring out what unaligned memory access is all about. I've tried to cover the information I was looking for when trying to learn about this, without producing a hopelessly detailed/complex spew. I hope it is useful to others. Signed-off-by: Daniel Drake Cc: Rob Landley Cc: "Randy.Dunlap" Cc: Alan Cox Cc: Jan Engelhardt Cc: Johannes Berg Cc: Kyle McMartin Cc: Kyle Moffett Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds