[PATCH v6 5/9] vsprintf: Factor out %pV handler as va_format()
- Date: Fri, 8 Feb 2019 16:23:06 +0100
- From: Petr Mladek <pmladek@xxxxxxxx>
- Subject: [PATCH v6 5/9] vsprintf: Factor out %pV handler as va_format()
Move the code from the long pointer() function. We are going to improve
error handling that will make it more complicated.
This patch does not change the existing behavior.
Signed-off-by: Petr Mladek <pmladek@xxxxxxxx>
---
lib/vsprintf.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d8bc3bb8ce18..9621b76f6c60 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1519,6 +1519,17 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
return buf;
}
+static char *va_format(char *buf, char *end, struct va_format *va_fmt)
+{
+ va_list va;
+
+ va_copy(va, *va_fmt->va);
+ buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
+ va_end(va);
+
+ return buf;
+}
+
static noinline_for_stack
char *uuid_string(char *buf, char *end, const u8 *addr,
struct printf_spec spec, const char *fmt)
@@ -2046,15 +2057,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
case 'U':
return uuid_string(buf, end, ptr, spec, fmt);
case 'V':
- {
- va_list va;
-
- va_copy(va, *((struct va_format *)ptr)->va);
- buf += vsnprintf(buf, end > buf ? end - buf : 0,
- ((struct va_format *)ptr)->fmt, va);
- va_end(va);
- return buf;
- }
+ return va_format(buf, end, ptr);
case 'K':
return restricted_pointer(buf, end, ptr, spec);
case 'N':
--
2.13.7