Messages in this thread | | | From | Rasmus Villemoes <> | Subject | Re: [PATCH 01/14] lib/vsprintf.c: pull out padding code from dentry_name() | Date | Thu, 26 Nov 2015 22:41:50 +0100 |
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On Mon, Nov 23 2015, Andy Shevchenko <andy.shevchenko@gmail.com> wrote:
> On Mon, Nov 23, 2015 at 11:29 PM, Rasmus Villemoes > <linux@rasmusvillemoes.dk> wrote: >> Pull out the logic in dentry_name() which handles field width space >> padding, in preparation for reusing it from string(). Rename the >> widen() helper to move_right(), since it is used for handling the >> !(flags & LEFT) case. >> >> Cc: Al Viro <viro@ZenIV.linux.org.uk> >> Cc: Ingo Molnar <mingo@kernel.org> >> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> >> >> -static void widen(char *buf, char *end, unsigned len, unsigned spaces) >> +static void move_right(char *buf, char *end, unsigned len, unsigned spaces) >> { >> size_t size; >> if (buf >= end) /* nowhere to put anything */ >> @@ -556,6 +556,35 @@ static void widen(char *buf, char *end, unsigned len, unsigned spaces) >> memset(buf, ' ', spaces); >> } >> >> +/* > > Perhaps /**
Nah, it's not an exported function, so I didn't want to do a formal kernel-doc thing. I can make it proper kernel-doc if you insist, but I don't think the whole "current buffer position", "end of output buffer", "new buffer position" makes sense outside the context of vsprintf.c with its own slightly peculiar way of doing things.
>> + * Handle field width padding for a string. >> + * @buf: current buffer position >> + * @n: length of string >> + * @end: end of output buffer >> + * @spec: for field width and flags >> + * Returns: new buffer position after padding. >> + */ >> +static noinline_for_stack >> +char *widen_string(char *buf, int n, char *end, struct printf_spec spec) >> +{
Rasmus
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