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Subject[PATCH v6 5/9] vsprintf: Factor out %pV handler as va_format()
Date
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@suse.com>
---
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
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