linux/lib/zlib_dfltcc
Mikhail Zaslonko 9010dbc007 lib/zlib: DFLTCC support inflate with small window
There is no hardware control for DFLTCC window size.  After this change,
software and hardware window formats no longer match: the software will
use wbits and wsize, and the hardware will use HB_BITS and HB_SIZE.

Since neither dictionary manipulation nor internal allocation functions
are relevant to kernel zlib and zlib_inflate_workspacesize() always use
MAX_WBITS for window size calculation, only dfltcc_can_inflate() and
dfltcc_inflate() functions are affected by this patch.

This commit is based on:
  https://github.com/zlib-ng/zlib-ng/commit/3eab317

Link: https://lkml.kernel.org/r/20230126131428.1222214-8-zaslonko@linux.ibm.com
Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-02 22:50:09 -08:00
..
dfltcc_deflate.c lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
dfltcc_deflate.h lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
dfltcc_inflate.c lib/zlib: DFLTCC support inflate with small window 2023-02-02 22:50:09 -08:00
dfltcc_inflate.h lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
dfltcc_util.h lib/zlib: add zlib_deflate_dfltcc_enabled() function 2020-01-31 10:30:40 -08:00
dfltcc.c lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
dfltcc.h lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
Makefile zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c 2020-12-29 15:36:49 -08:00