On 2017/9/7 上午4:27, Helge Deller wrote:
> Use the %pS instead of the %pF printk format specifier for printing symbols
> from direct addresses. This is needed for the ia64, ppc64 and parisc64
> architectures.
>
> Signed-off-by: Helge Deller <deller@xxxxxx>
> Cc: linux-bcache@xxxxxxxxxxxxxxx
> Cc: linux-raid@xxxxxxxxxxxxxxx
> ---
> drivers/md/bcache/closure.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
> index 864e673..0b0c9bc 100644
> --- a/drivers/md/bcache/closure.c
> +++ b/drivers/md/bcache/closure.c
> @@ -175,7 +175,7 @@ static int debug_seq_show(struct seq_file *f, void *data)
> list_for_each_entry(cl, &closure_list, all) {
> int r = atomic_read(&cl->remaining);
>
> - seq_printf(f, "%p: %pF -> %pf p %p r %i ",
> + seq_printf(f, "%p: %pS -> %pf p %p r %i ",
> cl, (void *) cl->ip, cl->fn, cl->parent,
> r & CLOSURE_REMAINING_MASK);
>
> @@ -187,7 +187,7 @@ static int debug_seq_show(struct seq_file *f, void *data)
> r & CLOSURE_SLEEPING ? "Sl" : "");
>
> if (r & CLOSURE_WAITING)
> - seq_printf(f, " W %pF\n",
> + seq_printf(f, " W %pS\n",
> (void *) cl->waiting_on);
>
> seq_printf(f, "\n");
>
It is unclear to me, that if %pF is used, on ia64/ppc64/parisc64 a
function descriptor conversion happens, what negative effect exactly
takes place ? Or you just want to unify the out put format, and get rid
of extra conversion information ?
Thanks.
--
Coly Li
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