1 files changed, 9 insertions, 44 deletions

diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 196eaf373a06..57ab74df7eea 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -10,6 +10,7 @@
  */
 
 #include "misc.h"
+#include "../string.h"
 
 /* WARNING!!
  * This code is compiled with -fPIC and it is relocated dynamically
@@ -97,8 +98,14 @@
  */
 #define STATIC          static
 
-#undef memset
 #undef memcpy
+
+/*
+ * Use a normal definition of memset() from string.c. There are already
+ * included header files which expect a definition of memset() and by
+ * the time we define memset macro, it is too late.
+ */
+#undef memset
 #define memzero(s, n)   memset((s), 0, (n))
 
 
@@ -109,9 +116,6 @@ static void error(char *m);
  */
 struct boot_params *real_mode;          /* Pointer to real-mode data */
 
-void *memset(void *s, int c, size_t n);
-void *memcpy(void *dest, const void *src, size_t n);
-
 memptr free_mem_ptr;
 memptr free_mem_end_ptr;
 
@@ -216,45 +220,6 @@ void __putstr(const char *s)
         outb(0xff & (pos >> 1), vidport+1);
 }
 
-void *memset(void *s, int c, size_t n)
-{
-        int i;
-        char *ss = s;
-
-        for (i = 0; i < n; i++)
-                ss[i] = c;
-        return s;
-}
-#ifdef CONFIG_X86_32
-void *memcpy(void *dest, const void *src, size_t n)
-{
-        int d0, d1, d2;
-        asm volatile(
-                "rep ; movsl\n\t"
-                "movl %4,%%ecx\n\t"
-                "rep ; movsb\n\t"
-                : "=&c" (d0), "=&D" (d1), "=&S" (d2)
-                : "0" (n >> 2), "g" (n & 3), "1" (dest), "2" (src)
-                : "memory");
-
-        return dest;
-}
-#else
-void *memcpy(void *dest, const void *src, size_t n)
-{
-        long d0, d1, d2;
-        asm volatile(
-                "rep ; movsq\n\t"
-                "movq %4,%%rcx\n\t"
-                "rep ; movsb\n\t"
-                : "=&c" (d0), "=&D" (d1), "=&S" (d2)
-                : "0" (n >> 3), "g" (n & 7), "1" (dest), "2" (src)
-                : "memory");
-
-        return dest;
-}
-#endif
-
 static void error(char *x)
 {
         error_putstr("\n\n");
@@ -389,7 +354,7 @@ static void parse_elf(void *output)
         free(phdrs);
 }
 
-asmlinkage void *decompress_kernel(void *rmode, memptr heap,
+asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
                                   unsigned char *input_data,
                                   unsigned long input_len,
                                   unsigned char *output,