[PATCH 1/9] drivers/gpu/drm/drm_stub.c: Use printf extension %pV

[Joe Perches]

Using %pV reduces the number of printk calls and
eliminates any possible message interleaving from
other printk calls.

Signed-off-by: Joe Perches <joe at perches.com>
---
 drivers/gpu/drm/drm_stub.c |   14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index cdc89ee..e632527 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -57,13 +57,21 @@ void drm_ut_debug_printk(unsigned int request_level,
                         const char *function_name,
                         const char *format, ...)
 {
+       struct va_format vaf;
        va_list args;

        if (drm_debug & request_level) {
-               if (function_name)
-                       printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
                va_start(args, format);
-               vprintk(format, args);
+
+               vaf.fmt = format;
+               vaf.va = &args;
+
+               if (function_name)
+                       printk(KERN_DEBUG "[%s:%s], %pV",
+                              prefix, function_name, &vaf);
+               else
+                       printk(KERN_DEBUG "%pV", &vaf);
+
                va_end(args);
        }
 }
-- 
1.7.3.1.g432b3.dirty