On Mon 2017-12-11 21:50:12, Sergey Senozhatsky wrote:
> Hello,
>
> A rather automatic replacement of print_symbol()
> with direct printk() calls. print_symbol() uses extra stack
> buffer (KSYM_SYMBOL_LEN 128 bytes) and, basically, should
> be identical to printk(%pS).
To make it clear, both print_symbol() and printk(%pS)
print the adress using sprint_symbol(). And even printk(%pS)
uses the buffer on the stack, see:
char *symbol_string(char *buf, char *end, void *ptr,
struct printf_spec spec, const char *fmt)
{
[...]
char sym[KSYM_SYMBOL_LEN];
[...]
sprint_symbol(sym, value);
}
Anyway, print_symbol() is an old weird API and it would be nice
to eventually get rid of it. I could take this patches into
printk.git. Would you mind if I change the commit messages
to something like?:
print_symbol() is an old weird API. It has been
obsoleted by printk() and %pS format specifier.
Best Regards,
Petr
