9p: Reduce object size with CONFIG_NET_9P_DEBUG

Reduce object size by deduplicating formats.

Use vsprintf extension %pV.
Rename P9_DPRINTK uses to p9_debug, align arguments.
Add function for _p9_debug and macro to add __func__.
Add missing "\n"s to p9_debug uses.
Remove embedded function names as p9_debug adds it.
Remove P9_EPRINTK macro and convert use to pr_<level>.
Add and use pr_fmt and pr_<level>.

$ size fs/9p/built-in.o*
   text	   data	    bss	    dec	    hex	filename
  62133	    984	  16000	  79117	  1350d	fs/9p/built-in.o.new
  67342	    984	  16928	  85254	  14d06	fs/9p/built-in.o.old
$ size net/9p/built-in.o*
   text	   data	    bss	    dec	    hex	filename
  88792	   4148	  22024	 114964	  1c114	net/9p/built-in.o.new
  94072	   4148	  23232	 121452	  1da6c	net/9p/built-in.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/9p/util.c b/net/9p/util.c
index 9c1c9348ac35..6ceeeb384de7 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -106,7 +106,7 @@ retry:
         else if (error)
                 return -1;
 
-        P9_DPRINTK(P9_DEBUG_MUX, " id %d pool %p\n", i, p);
+        p9_debug(P9_DEBUG_MUX, " id %d pool %p\n", i, p);
         return i;
 }
 EXPORT_SYMBOL(p9_idpool_get);
@@ -124,7 +124,7 @@ void p9_idpool_put(int id, struct p9_idpool *p)
 {
         unsigned long flags;
 
-        P9_DPRINTK(P9_DEBUG_MUX, " id %d pool %p\n", id, p);
+        p9_debug(P9_DEBUG_MUX, " id %d pool %p\n", id, p);
 
         spin_lock_irqsave(&p->lock, flags);
         idr_remove(&p->pool, id);