staging: csr: remove CsrStrDup

Use kstrdup() for the few places that called it, and remove
CsrUtf8StrDup() as no one calls that function.

Cc: Mikko Virkkilä <mikko.virkkila@bluegiga.com>
Cc: Lauri Hintsala <Lauri.Hintsala@bluegiga.com>
Cc: Riku Mettälä <riku.mettala@bluegiga.com>
Cc: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/csr/csr_serialize_primitive_types.c

@@ -49,14 +49,14 @@ EXPORT_SYMBOL_GPL(CsrMemCpyDes);
 
 void CsrCharStringDes(char **value, u8 *buffer, size_t *offset)
 {
-    *value = CsrStrDup((char *) &buffer[*offset]);
+    *value = kstrdup((char *) &buffer[*offset], GFP_KERNEL);
     *offset += CsrStrLen(*value) + 1;
 }
 EXPORT_SYMBOL_GPL(CsrCharStringDes);
 
 void CsrUtf8StringDes(u8 **value, u8 *buffer, size_t *offset)
 {
-    *value = (u8 *) CsrStrDup((char *) &buffer[*offset]);
+    *value = (u8 *)kstrdup((char *) &buffer[*offset], GFP_KERNEL);
     *offset += CsrStrLen((char *) *value) + 1;
 }
 

drivers/staging/csr/csr_unicode.h

@@ -64,26 +64,6 @@ u32 CsrUtf8StringLengthInBytes(const u8 *string);
 *******************************************************************************/
 u8 *CsrUtf8StrTruncate(u8 *target, size_t count);
 
-/*******************************************************************************
-
-    NAME
-        CsrUtf8StrDup
-
-    DESCRIPTION
-        This function will allocate memory and copy the source string into the
-        allocated memory, which is then returned as a duplicate of the original
-        string. The memory returned must be freed by calling CsrPmemFree when
-        the duplicate is no longer needed.
-
-    PARAMETERS
-        source - UTF-8 string to be duplicated.
-
-    RETURNS
-        Returns a duplicate of source.
-
-*******************************************************************************/
-u8 *CsrUtf8StrDup(const u8 *source);
-
 /*
  * UCS2
  *

drivers/staging/csr/csr_utf16.c

@@ -1053,8 +1053,3 @@ u8 *CsrUtf8StrTruncate(u8 *target, size_t count)
 
     return target;
 }
-
-u8 *CsrUtf8StrDup(const u8 *source)
-{
-    return (u8 *) CsrStrDup((const char *) source);
-}

drivers/staging/csr/csr_util.c

@@ -58,21 +58,6 @@ s32 CsrVsnprintf(char *string, size_t count, const char *format, va_list args)
 }
 EXPORT_SYMBOL_GPL(CsrVsnprintf);
 
-char *CsrStrDup(const char *string)
-{
-    char *copy;
-    u32 len;
-
-    copy = NULL;
-    if (string != NULL)
-    {
-        len = CsrStrLen(string) + 1;
-        copy = CsrPmemAlloc(len);
-        CsrMemCpy(copy, string, len);
-    }
-    return copy;
-}
-
 MODULE_DESCRIPTION("CSR Operating System Kernel Abstraction");
 MODULE_AUTHOR("Cambridge Silicon Radio Ltd.");
 MODULE_LICENSE("GPL and additional rights");

drivers/staging/csr/csr_util.h

@@ -35,11 +35,6 @@ size_t CsrStrLen(const char *string);
 #endif /* !CSR_USE_STDC_LIB */
 s32 CsrVsnprintf(char *string, size_t count, const char *format, va_list args);
 
-/*------------------------------------------------------------------*/
-/* Non-standard utility functions */
-/*------------------------------------------------------------------*/
-char *CsrStrDup(const char *string);
-
 #define CsrOffsetOf(st, m)  ((size_t) & ((st *) 0)->m)
 
 #ifdef __cplusplus