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, 8 insertions, 8 deletions

diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index d288773871b3..29653b70a9c3 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -32,8 +32,8 @@ ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
         attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
         if (IS_ERR(attr_fid)) {
                 retval = PTR_ERR(attr_fid);
-                P9_DPRINTK(P9_DEBUG_VFS,
-                        "p9_client_attrwalk failed %zd\n", retval);
+                p9_debug(P9_DEBUG_VFS, "p9_client_attrwalk failed %zd\n",
+                         retval);
                 attr_fid = NULL;
                 goto error;
         }
@@ -87,8 +87,8 @@ ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
 {
         struct p9_fid *fid;
 
-        P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
-                __func__, name, buffer_size);
+        p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu\n",
+                 name, buffer_size);
         fid = v9fs_fid_lookup(dentry);
         if (IS_ERR(fid))
                 return PTR_ERR(fid);
@@ -115,8 +115,8 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
         int retval, msize, write_count;
         struct p9_fid *fid = NULL;
 
-        P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu flags = %d\n",
-                __func__, name, value_len, flags);
+        p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n",
+                 name, value_len, flags);
 
         fid = v9fs_fid_clone(dentry);
         if (IS_ERR(fid)) {
@@ -129,8 +129,8 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
          */
         retval = p9_client_xattrcreate(fid, name, value_len, flags);
         if (retval < 0) {
-                P9_DPRINTK(P9_DEBUG_VFS,
-                        "p9_client_xattrcreate failed %d\n", retval);
+                p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n",
+                         retval);
                 goto error;
         }
         msize = fid->clnt->msize;