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ftrace: remove ftrace_ip_converted()

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Remove the unneeded function ftrace_ip_converted().

Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Abhishek Sagar 2008-06-01 21:47:42 +05:30 committed by Ingo Molnar
parent 0eb967012e
commit 1d74f2a0f6
5 changed files with 0 additions and 44 deletions
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10
arch/arm/kernel/ftrace.c
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@ -22,16 +22,6 @@
static unsigned long bl_insn; static unsigned long bl_insn;
static const unsigned long NOP = 0xe1a00000; /* mov r0, r0 */ static const unsigned long NOP = 0xe1a00000; /* mov r0, r0 */
/* return true if mcount call site is already patched/no-op'ed */
int ftrace_ip_converted(unsigned long pc)
{
unsigned long save;
pc -= INSN_SIZE;
save = *(unsigned long *)pc;
return save == NOP;
}
unsigned char *ftrace_nop_replace(void) unsigned char *ftrace_nop_replace(void)
{ {
return (char *)&NOP; return (char *)&NOP;

10
arch/powerpc/kernel/ftrace.c
View File

@ -27,16 +27,6 @@ static unsigned int ftrace_nop = 0x60000000;
# define GET_ADDR(addr) *(unsigned long *)addr # define GET_ADDR(addr) *(unsigned long *)addr
#endif #endif
notrace int ftrace_ip_converted(unsigned long ip)
{
unsigned int save;
ip -= CALL_BACK;
save = *(unsigned int *)ip;
return save == ftrace_nop;
}
static unsigned int notrace ftrace_calc_offset(long ip, long addr) static unsigned int notrace ftrace_calc_offset(long ip, long addr)
{ {
return (int)((addr + CALL_BACK) - ip); return (int)((addr + CALL_BACK) - ip);

7
arch/sparc64/kernel/ftrace.c
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@ -7,13 +7,6 @@
static const u32 ftrace_nop = 0x01000000; static const u32 ftrace_nop = 0x01000000;
notrace int ftrace_ip_converted(unsigned long ip)
{
u32 insn = *(u32 *) ip;
return (insn == ftrace_nop);
}
notrace unsigned char *ftrace_nop_replace(void) notrace unsigned char *ftrace_nop_replace(void)
{ {
return (char *)&ftrace_nop; return (char *)&ftrace_nop;

10
arch/x86/kernel/ftrace.c
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@ -31,16 +31,6 @@ union ftrace_code_union {
} __attribute__((packed)); } __attribute__((packed));
}; };
notrace int ftrace_ip_converted(unsigned long ip)
{
unsigned long save;
ip -= CALL_BACK;
save = *(long *)ip;
return save == *ftrace_nop;
}
static int notrace ftrace_calc_offset(long ip, long addr) static int notrace ftrace_calc_offset(long ip, long addr)
{ {
return (int)(addr - ip); return (int)(addr - ip);

7
kernel/trace/ftrace.c
View File

@ -306,13 +306,6 @@ ftrace_record_ip(unsigned long ip)
if (ftrace_ip_in_hash(ip, key)) if (ftrace_ip_in_hash(ip, key))
goto out_unlock; goto out_unlock;
/*
* There's a slight race that the ftraced will update the
* hash and reset here. If it is already converted, skip it.
*/
if (ftrace_ip_converted(ip))
goto out_unlock;
node = ftrace_alloc_dyn_node(ip); node = ftrace_alloc_dyn_node(ip);
if (!node) if (!node)
goto out_unlock; goto out_unlock;