[PATCH 4/4] zstd: change structure variable from int to char

[Maninder Singh]

Elements of ZSTD_frameParameters structure are used as flag, so
just declare them as char. ZSTD_frameParameters structure is used by
ZSTD_parameters.

Before:
======
sizeof(ZSTD_parameters)
$1 = 40

After:
=====
sizeof(ZSTD_parameters)
$1 = 32

Signed-off-by: Maninder Singh <maninder...@samsung.com>
Signed-off-by: Vaneet Narang <v.nar...@samsung.com>
---
 include/linux/zstd.h  | 6 +++---
 lib/zstd/compress.c   | 4 ++--
 lib/zstd/decompress.c | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/zstd.h b/include/linux/zstd.h
index 5103efa..a1e3483 100644
--- a/include/linux/zstd.h
+++ b/include/linux/zstd.h
@@ -164,9 +164,9 @@ typedef struct {
  * The default value is all fields set to 0.
  */
 typedef struct {
-       unsigned int contentSizeFlag;
-       unsigned int checksumFlag;
-       unsigned int noDictIDFlag;
+       unsigned char contentSizeFlag;
+       unsigned char checksumFlag;
+       unsigned char noDictIDFlag;
 } ZSTD_frameParameters;
 
 /**
diff --git a/lib/zstd/compress.c b/lib/zstd/compress.c
index 306e31b..7e0cea2 100644
--- a/lib/zstd/compress.c
+++ b/lib/zstd/compress.c
@@ -2435,9 +2435,9 @@ static size_t ZSTD_writeFrameHeader(void *dst, size_t 
dstCapacity, ZSTD_paramete
 {
        BYTE *const op = (BYTE *)dst;
        U32 const dictIDSizeCode = (dictID > 0) + (dictID >= 256) + (dictID >= 
65536); /* 0-3 */
-       U32 const checksumFlag = params->fParams.checksumFlag > 0;
+       BYTE const checksumFlag = params->fParams.checksumFlag > 0;
        U32 const windowSize = 1U << params->cParams.windowLog;
-       U32 const singleSegment = params->fParams.contentSizeFlag && 
(windowSize >= pledgedSrcSize);
+       BYTE const singleSegment = params->fParams.contentSizeFlag && 
(windowSize >= pledgedSrcSize);
        BYTE const windowLogByte = (BYTE)((params->cParams.windowLog - 
ZSTD_WINDOWLOG_ABSOLUTEMIN) << 3);
        U32 const fcsCode =
            params->fParams.contentSizeFlag ? (pledgedSrcSize >= 256) + 
(pledgedSrcSize >= 65536 + 256) + (pledgedSrcSize >= 0xFFFFFFFFU) : 0; /* 0-3 */
diff --git a/lib/zstd/decompress.c b/lib/zstd/decompress.c
index 269ee9a..7828264 100644
--- a/lib/zstd/decompress.c
+++ b/lib/zstd/decompress.c
@@ -233,7 +233,7 @@ size_t ZSTD_getFrameParams(ZSTD_frameParams *fparamsPtr, 
const void *src, size_t
                BYTE const fhdByte = ip[4];
                size_t pos = 5;
                U32 const dictIDSizeCode = fhdByte & 3;
-               U32 const checksumFlag = (fhdByte >> 2) & 1;
+               BYTE const checksumFlag = (fhdByte >> 2) & 1;
                U32 const singleSegment = (fhdByte >> 5) & 1;
                U32 const fcsID = fhdByte >> 6;
                U32 const windowSizeMax = 1U << ZSTD_WINDOWLOG_MAX;
-- 
2.7.4