Re: [PATCH v2 2/3] lib/vsprintf: Replace custom spec to print decimals with generic one

From: Joe Perches
Date: Fri Jul 31 2020 - 14:20:27 EST


On Fri, 2020-07-31 at 21:08 +0300, Andy Shevchenko wrote:
> When printing phandle via %pOFp the custom spec is used. First of all,
> it has a SMALL flag which makes no sense for decimal numbers. Second,
> we have already default spec for decimal numbers. Use the latter in
> the %pOFp case as well.
[]
> diff --git a/lib/vsprintf.c b/lib/vsprintf.c
[]
> @@ -1979,12 +1979,6 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
> char *buf_start = buf;
> struct property *prop;
> bool has_mult, pass;
> - static const struct printf_spec num_spec = {
> - .flags = SMALL,
> - .field_width = -1,
> - .precision = -1,
> - .base = 10,
> - };
>
> struct printf_spec str_spec = spec;
> str_spec.field_width = -1;
> @@ -2024,7 +2018,7 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
> str_spec.precision = precision;
> break;
> case 'p': /* phandle */
> - buf = number(buf, end, (unsigned int)dn->phandle, num_spec);
> + buf = number(buf, end, (unsigned int)dn->phandle, default_dec_spec);

Could changing .precision = -1 to 0 change any output?