Re: [PATCH v5 09/11] lib/vsprintf: OF nodes are first and foremost, struct device_nodes

From: Petr Mladek
Date: Tue Sep 03 2019 - 04:52:38 EST


On Mon 2019-09-02 16:57:30, Sakari Ailus wrote:
> Factor out static kobject_string() function that simply calls
> device_node_string(), and thus remove references to kobjects (as these are
> struct device_node).
>
> Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
> lib/vsprintf.c | 16 ++++------------
> 1 file changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/lib/vsprintf.c b/lib/vsprintf.c
> index a04a2167101ef..4ad9332d54ba6 100644
> --- a/lib/vsprintf.c
> +++ b/lib/vsprintf.c
> @@ -1905,6 +1905,9 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
> struct printf_spec str_spec = spec;
> str_spec.field_width = -1;
>
> + if (fmt[0] != 'F')
> + return error_string(buf, end, "(%pO?)", spec);
> +
> if (!IS_ENABLED(CONFIG_OF))
> return error_string(buf, end, "(%pOF?)", spec);
>
> @@ -1978,17 +1981,6 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
> return widen_string(buf, buf - buf_start, end, spec);
> }
>
> -static char *kobject_string(char *buf, char *end, void *ptr,
> - struct printf_spec spec, const char *fmt)
> -{
> - switch (fmt[1]) {
> - case 'F':
> - return device_node_string(buf, end, ptr, spec, fmt + 1);
> - }
> -
> - return error_string(buf, end, "(%pO?)", spec);
> -}
> -
> /*
> * Show a '%p' thing. A kernel extension is that the '%p' is followed
> * by an extra set of alphanumeric characters that are extended format
> @@ -2167,7 +2159,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
> case 'G':
> return flags_string(buf, end, ptr, spec, fmt);
> case 'O':
> - return kobject_string(buf, end, ptr, spec, fmt);
> + return device_node_string(buf, end, ptr, spec, fmt + 1);

I know that this come from from kobject_string(). But please, modify
it to follow the style used by other %p modifiers. I mean to pass
"fmt" as is and then use:

if (fmt[1] != 'F')

With the above change:

Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>

Best Regards,
Petr