Re: [RFC] kallsyms_lookup always requires buffers

From: Franck Bui-Huu
Date: Tue Aug 22 2006 - 09:52:22 EST


Hi

Arjan van de Ven wrote:
>> +}
>> +EXPORT_SYMBOL_GPL(kallsyms_lookup_gently);
>
>
> Hi,
>
> there don't seem to be modular users so please don't export it since
> that export just eats up useless space. (we have way too many of those
> already)
>

true.

> (Also I suggest you submit at least one user with your patch but that's
> another matter)
>

mips could be one of the future users, see patch below.

thanks
Franck

-- >8 --

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 951bf9c..eb80db5 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -344,8 +344,6 @@ static int __init frame_info_init(void)
{
int i;
#ifdef CONFIG_KALLSYMS
- char *modname;
- char namebuf[KSYM_NAME_LEN + 1];
unsigned long start, size, ofs;
extern char __sched_text_start[], __sched_text_end[];
extern char __lock_text_start[], __lock_text_end[];
@@ -354,7 +352,7 @@ #ifdef CONFIG_KALLSYMS
for (i = 0; i < ARRAY_SIZE(mfinfo); i++) {
if (start == (unsigned long)schedule)
schedule_frame = &mfinfo[i];
- if (!kallsyms_lookup(start, &size, &ofs, &modname, namebuf))
+ if (!kallsyms_lookup_gently(start, &size, &ofs))
break;
mfinfo[i].func = (void *)(start + ofs);
mfinfo[i].func_size = size;
@@ -454,8 +452,6 @@ unsigned long unwind_stack(struct task_s
{
unsigned long stack_page;
struct mips_frame_info info;
- char *modname;
- char namebuf[KSYM_NAME_LEN + 1];
unsigned long size, ofs;
int leaf;

@@ -463,7 +459,7 @@ unsigned long unwind_stack(struct task_s
if (!stack_page)
return 0;

- if (!kallsyms_lookup(pc, &size, &ofs, &modname, namebuf))
+ if (!kallsyms_lookup_gently(pc, &size, &ofs))
return 0;
if (ofs == 0)
return 0;
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/