From: Nick Terrell <nickrterrell@gmail.com>
Date: Sat, 21 Sep 2019 04:37:13 +0000 (-0700)
Subject: Add UNUSED_ATTR to ZSTD_storeSeq()
X-Git-Tag: v1.4.4~1^2~42^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5cb7615f1f3313b4dbd8ab06dc54ad946db324d7;p=thirdparty%2Fzstd.git

Add UNUSED_ATTR to ZSTD_storeSeq()
---

diff --git a/lib/common/compiler.h b/lib/common/compiler.h
index 36584aa69..1877a0c1d 100644
--- a/lib/common/compiler.h
+++ b/lib/common/compiler.h
@@ -61,6 +61,13 @@
 #  define HINT_INLINE static INLINE_KEYWORD FORCE_INLINE_ATTR
 #endif
 
+/* UNUSED_ATTR tells the compiler it is okay if the function is unused. */
+#if defined(__GNUC__)
+#  define UNUSED_ATTR __attribute__((unused))
+#else
+#  define UNUSED_ATTR
+#endif
+
 /* force no inlining */
 #ifdef _MSC_VER
 #  define FORCE_NOINLINE static __declspec(noinline)
diff --git a/lib/compress/zstd_compress_internal.h b/lib/compress/zstd_compress_internal.h
index 42660e1e0..1140945b1 100644
--- a/lib/compress/zstd_compress_internal.h
+++ b/lib/compress/zstd_compress_internal.h
@@ -361,7 +361,8 @@ static void ZSTD_safecopyLiterals(BYTE* op, BYTE const* ip, BYTE const* const ie
  *  `mlBase` : matchLength - MINMATCH
  *  Allowed to overread literals up to litLimit.
 */
-HINT_INLINE void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const BYTE* literals, const BYTE* litLimit, U32 offCode, size_t mlBase)
+HINT_INLINE UNUSED_ATTR
+void ZSTD_storeSeq(seqStore_t* seqStorePtr, size_t litLength, const BYTE* literals, const BYTE* litLimit, U32 offCode, size_t mlBase)
 {
     BYTE const* const litLimit_w = litLimit - WILDCOPY_OVERLENGTH;
     BYTE const* const litEnd = literals + litLength;