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authorGao Xiang <hsiangkao@linux.alibaba.com>2025-01-14 21:04:54 +0800
committerAndrew Morton <akpm@linux-foundation.org>2025-01-24 22:47:28 -0800
commitf0ef073e213a3a1a494b6f55a76ce1242600a453 (patch)
tree3ac9d0e165ca158cac7931e3fd0037a4489d1491 /lib
parent13fd5cf37456620b57106dbfa89c5aad5f195343 (diff)
include/linux/lz4.h: add some missing macros
Currently, LZ4_DISTANCE_MAX and LZ4_DECOMPRESS_INPLACE_MARGIN are defined in the erofs subsystem for LZ4 in-place decompression, which is somewhat unsuitable since they should belong to the LZ4 itself and may change with future LZ4 codebase updates. Move them to include/linux/lz4.h to match the upstream LZ4 library [1]. No logic changes. [1] https://github.com/lz4/lz4/blob/v1.10.0/lib/lz4.h#L670 Link: https://lkml.kernel.org/r/20250114130454.1191150-1-hsiangkao@linux.alibaba.com Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Cc: Yann Collet <yann.collet.73@gmail.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Chao Yu <chao@kernel.org> Cc: Yue Hu <zbestahu@gmail.com> Cc; Jeffle Xu <jefflexu@linux.alibaba.com> Cc: Sandeep Dhavale <dhavale@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/lz4/lz4_compress.c1
-rw-r--r--lib/lz4/lz4_decompress.c1
-rw-r--r--lib/lz4/lz4defs.h4
-rw-r--r--lib/lz4/lz4hc_compress.c1
4 files changed, 2 insertions, 5 deletions
diff --git a/lib/lz4/lz4_compress.c b/lib/lz4/lz4_compress.c
index b0bbeeb74b9e..2a397bb2c661 100644
--- a/lib/lz4/lz4_compress.c
+++ b/lib/lz4/lz4_compress.c
@@ -33,7 +33,6 @@
/*-************************************
* Dependencies
**************************************/
-#include <linux/lz4.h>
#include "lz4defs.h"
#include <linux/module.h>
#include <linux/kernel.h>
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c
index 0e31e6da5ce7..3a2cd9acada4 100644
--- a/lib/lz4/lz4_decompress.c
+++ b/lib/lz4/lz4_decompress.c
@@ -33,7 +33,6 @@
/*-************************************
* Dependencies
**************************************/
-#include <linux/lz4.h>
#include "lz4defs.h"
#include <linux/init.h>
#include <linux/module.h>
diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h
index cb358d6bde5a..17277ec16919 100644
--- a/lib/lz4/lz4defs.h
+++ b/lib/lz4/lz4defs.h
@@ -39,6 +39,7 @@
#include <linux/bitops.h>
#include <linux/string.h> /* memset, memcpy */
+#include <linux/lz4.h>
#define FORCE_INLINE __always_inline
@@ -92,8 +93,7 @@ typedef uintptr_t uptrval;
#define MB (1 << 20)
#define GB (1U << 30)
-#define MAXD_LOG 16
-#define MAX_DISTANCE ((1 << MAXD_LOG) - 1)
+#define MAX_DISTANCE LZ4_DISTANCE_MAX
#define STEPSIZE sizeof(size_t)
#define ML_BITS 4
diff --git a/lib/lz4/lz4hc_compress.c b/lib/lz4/lz4hc_compress.c
index bc45594ad2a8..91936dc3d14b 100644
--- a/lib/lz4/lz4hc_compress.c
+++ b/lib/lz4/lz4hc_compress.c
@@ -34,7 +34,6 @@
/*-************************************
* Dependencies
**************************************/
-#include <linux/lz4.h>
#include "lz4defs.h"
#include <linux/module.h>
#include <linux/kernel.h>