kernel/lib/842, branch linux-4.2.y

lib: correct 842 decompress for 32 bit

2015-05-13T02:31:59Z

Avoid 64 bit mod operation, which won't work on 32 bit systems. Simple subtraction can be used instead in this case. Reported-By: Fengguang Wu Signed-off-by: Dan Streetman Signed-off-by: Herbert Xu

lib: make lib/842 decompress functions static

2015-05-13T02:31:55Z

Make the do_index and do_op functions static. They are used only internally by the 842 decompression function, and should be static. Reported-By: Fengguang Wu Signed-off-by: Fengguang Wu Signed-off-by: Dan Streetman Signed-off-by: Herbert Xu

lib: add software 842 compression/decompression

2015-05-11T07:06:43Z

Add 842-format software compression and decompression functions. Update the MAINTAINERS 842 section to include the new files. The 842 compression function can compress any input data into the 842 compression format. The 842 decompression function can decompress any standard-format 842 compressed data - specifically, either a compressed data buffer created by the 842 software compression function, or a compressed data buffer created by the 842 hardware compressor (located in PowerPC coprocessors). The 842 compressed data format is explained in the header comments. This is used in a later patch to provide a full software 842 compression and decompression crypto interface. Signed-off-by: Dan Streetman Signed-off-by: Herbert Xu