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-rw-r--r--arch/x86/include/asm/hash.h51
1 files changed, 5 insertions, 46 deletions
diff --git a/arch/x86/include/asm/hash.h b/arch/x86/include/asm/hash.h
index a881d784f044..e8c58f88b1d4 100644
--- a/arch/x86/include/asm/hash.h
+++ b/arch/x86/include/asm/hash.h
@@ -1,48 +1,7 @@
-#ifndef __ASM_X86_HASH_H
-#define __ASM_X86_HASH_H
+#ifndef _ASM_X86_HASH_H
+#define _ASM_X86_HASH_H
-#include <linux/cpufeature.h>
-#include <asm/alternative.h>
+struct fast_hash_ops;
+extern void setup_arch_fast_hash(struct fast_hash_ops *ops);
-u32 __intel_crc4_2_hash(const void *data, u32 len, u32 seed);
-u32 __intel_crc4_2_hash2(const u32 *data, u32 len, u32 seed);
-
-/*
- * non-inline versions of jhash so gcc does not need to generate
- * duplicate code in every object file
- */
-u32 __jhash(const void *data, u32 len, u32 seed);
-u32 __jhash2(const u32 *data, u32 len, u32 seed);
-
-/*
- * for documentation of these functions please look into
- * <include/asm-generic/hash.h>
- */
-
-static inline u32 arch_fast_hash(const void *data, u32 len, u32 seed)
-{
- u32 hash;
-
- alternative_call(__jhash, __intel_crc4_2_hash, X86_FEATURE_XMM4_2,
-#ifdef CONFIG_X86_64
- "=a" (hash), "D" (data), "S" (len), "d" (seed));
-#else
- "=a" (hash), "a" (data), "d" (len), "c" (seed));
-#endif
- return hash;
-}
-
-static inline u32 arch_fast_hash2(const u32 *data, u32 len, u32 seed)
-{
- u32 hash;
-
- alternative_call(__jhash2, __intel_crc4_2_hash2, X86_FEATURE_XMM4_2,
-#ifdef CONFIG_X86_64
- "=a" (hash), "D" (data), "S" (len), "d" (seed));
-#else
- "=a" (hash), "a" (data), "d" (len), "c" (seed));
-#endif
- return hash;
-}
-
-#endif /* __ASM_X86_HASH_H */
+#endif /* _ASM_X86_HASH_H */