9p: remove 9p fcall debug prints

One of the current debug options allows users to get a verbose dump of fcalls.
This isn't really necessary as correctly parsed protocol frames can be printed
as part of the code in the client functions.  The consolidated printfcalls
structure would require new entries to be added for every extension.  This
patch removes the debug print methods and their use.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

include/net/9p/9p.h

@@ -590,7 +590,6 @@ struct p9_fcall *p9_create_tstat(u32 fid);
 struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat,
 	int dotu);
 
-int p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int dotu);
 int p9_errstr2errno(char *errstr, int len);
 
 struct p9_idpool *p9_idpool_create(void);

net/9p/Makefile

@@ -6,7 +6,6 @@ obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
 	client.o \
 	conv.o \
 	error.o \
-	fcprint.o \
 	util.o \
 	protocol.o \
 	trans_fd.o \

net/9p/client.c

@@ -502,15 +502,6 @@ again:
 		goto reterr;
 	}
 
-#ifdef CONFIG_NET_9P_DEBUG
-	if ((p9_debug_level&P9_DEBUG_FCALL) == P9_DEBUG_FCALL) {
-		char buf[150];
-
-		p9_printfcall(buf, sizeof(buf), req->rc, c->dotu);
-		printk(KERN_NOTICE ">>> %p %s\n", c, buf);
-	}
-#endif
-
 	if (req->rc->id == P9_RERROR) {
 		int ecode = req->rc->params.rerror.errno;
 		struct p9_str *ename = &req->rc->params.rerror.error;

net/9p/fcprint.c

@@ -1,366 +0,0 @@
-/*
- *  net/9p/fcprint.c
- *
- *  Print 9P call.
- *
- *  Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to:
- *  Free Software Foundation
- *  51 Franklin Street, Fifth Floor
- *  Boston, MA  02111-1301  USA
- *
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/idr.h>
-#include <net/9p/9p.h>
-
-#ifdef CONFIG_NET_9P_DEBUG
-
-static int
-p9_printqid(char *buf, int buflen, struct p9_qid *q)
-{
-	int n;
-	char b[10];
-
-	n = 0;
-	if (q->type & P9_QTDIR)
-		b[n++] = 'd';
-	if (q->type & P9_QTAPPEND)
-		b[n++] = 'a';
-	if (q->type & P9_QTAUTH)
-		b[n++] = 'A';
-	if (q->type & P9_QTEXCL)
-		b[n++] = 'l';
-	if (q->type & P9_QTTMP)
-		b[n++] = 't';
-	if (q->type & P9_QTSYMLINK)
-		b[n++] = 'L';
-	b[n] = '\0';
-
-	return scnprintf(buf, buflen, "(%.16llx %x %s)",
-					(long long int) q->path, q->version, b);
-}
-
-static int
-p9_printperm(char *buf, int buflen, int perm)
-{
-	int n;
-	char b[15];
-
-	n = 0;
-	if (perm & P9_DMDIR)
-		b[n++] = 'd';
-	if (perm & P9_DMAPPEND)
-		b[n++] = 'a';
-	if (perm & P9_DMAUTH)
-		b[n++] = 'A';
-	if (perm & P9_DMEXCL)
-		b[n++] = 'l';
-	if (perm & P9_DMTMP)
-		b[n++] = 't';
-	if (perm & P9_DMDEVICE)
-		b[n++] = 'D';
-	if (perm & P9_DMSOCKET)
-		b[n++] = 'S';
-	if (perm & P9_DMNAMEDPIPE)
-		b[n++] = 'P';
-	if (perm & P9_DMSYMLINK)
-		b[n++] = 'L';
-	b[n] = '\0';
-
-	return scnprintf(buf, buflen, "%s%03o", b, perm&077);
-}
-
-static int
-p9_printstat(char *buf, int buflen, struct p9_stat *st, int extended)
-{
-	int n;
-
-	n = scnprintf(buf, buflen, "'%.*s' '%.*s'", st->name.len,
-		st->name.str, st->uid.len, st->uid.str);
-	if (extended)
-		n += scnprintf(buf+n, buflen-n, "(%d)", st->n_uid);
-
-	n += scnprintf(buf+n, buflen-n, " '%.*s'", st->gid.len, st->gid.str);
-	if (extended)
-		n += scnprintf(buf+n, buflen-n, "(%d)", st->n_gid);
-
-	n += scnprintf(buf+n, buflen-n, " '%.*s'", st->muid.len, st->muid.str);
-	if (extended)
-		n += scnprintf(buf+n, buflen-n, "(%d)", st->n_muid);
-
-	n += scnprintf(buf+n, buflen-n, " q ");
-	n += p9_printqid(buf+n, buflen-n, &st->qid);
-	n += scnprintf(buf+n, buflen-n, " m ");
-	n += p9_printperm(buf+n, buflen-n, st->mode);
-	n += scnprintf(buf+n, buflen-n, " at %d mt %d l %lld",
-		st->atime, st->mtime, (long long int) st->length);
-
-	if (extended)
-		n += scnprintf(buf+n, buflen-n, " ext '%.*s'",
-			st->extension.len, st->extension.str);
-
-	return n;
-}
-
-static int
-p9_dumpdata(char *buf, int buflen, u8 *data, int datalen)
-{
-	int i, n;
-
-	i = n = 0;
-	while (i < datalen) {
-		n += scnprintf(buf + n, buflen - n, "%02x", data[i]);
-		if (i%4 == 3)
-			n += scnprintf(buf + n, buflen - n, " ");
-		if (i%32 == 31)
-			n += scnprintf(buf + n, buflen - n, "\n");
-
-		i++;
-	}
-	n += scnprintf(buf + n, buflen - n, "\n");
-
-	return n;
-}
-
-static int
-p9_printdata(char *buf, int buflen, u8 *data, int datalen)
-{
-	return p9_dumpdata(buf, buflen, data, datalen < 16?datalen:16);
-}
-
-/**
- * p9_printfcall - decode and print a protocol structure into a buffer
- * @buf: buffer to deposit decoded structure into
- * @buflen: available space in buffer
- * @fc: protocol rpc structure of type &p9_fcall
- * @extended: whether or not session is operating with extended protocol
- */
-
-int
-p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int extended)
-{
-	int i, ret, type, tag;
-
-	if (!fc)
-		return scnprintf(buf, buflen, "<NULL>");
-
-	type = fc->id;
-	tag = fc->tag;
-
-	ret = 0;
-	switch (type) {
-	case P9_TVERSION:
-		ret += scnprintf(buf+ret, buflen-ret,
-				"Tversion tag %u msize %u version '%.*s'", tag,
-				fc->params.tversion.msize,
-				fc->params.tversion.version.len,
-				fc->params.tversion.version.str);
-		break;
-
-	case P9_RVERSION:
-		ret += scnprintf(buf+ret, buflen-ret,
-				"Rversion tag %u msize %u version '%.*s'", tag,
-				fc->params.rversion.msize,
-				fc->params.rversion.version.len,
-				fc->params.rversion.version.str);
-		break;
-
-	case P9_TAUTH:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Tauth tag %u afid %d uname '%.*s' aname '%.*s'", tag,
-			fc->params.tauth.afid, fc->params.tauth.uname.len,
-			fc->params.tauth.uname.str, fc->params.tauth.aname.len,
-			fc->params.tauth.aname.str);
-		break;
-
-	case P9_RAUTH:
-		ret += scnprintf(buf+ret, buflen-ret, "Rauth tag %u qid ", tag);
-		p9_printqid(buf+ret, buflen-ret, &fc->params.rauth.qid);
-		break;
-
-	case P9_TATTACH:
-		ret += scnprintf(buf+ret, buflen-ret,
-		 "Tattach tag %u fid %d afid %d uname '%.*s' aname '%.*s'", tag,
-		 fc->params.tattach.fid, fc->params.tattach.afid,
-		 fc->params.tattach.uname.len, fc->params.tattach.uname.str,
-		 fc->params.tattach.aname.len, fc->params.tattach.aname.str);
-		break;
-
-	case P9_RATTACH:
-		ret += scnprintf(buf+ret, buflen-ret, "Rattach tag %u qid ",
-									tag);
-		p9_printqid(buf+ret, buflen-ret, &fc->params.rattach.qid);
-		break;
-
-	case P9_RERROR:
-		ret += scnprintf(buf+ret, buflen-ret,
-				"Rerror tag %u ename '%.*s'", tag,
-				fc->params.rerror.error.len,
-				fc->params.rerror.error.str);
-		if (extended)
-			ret += scnprintf(buf+ret, buflen-ret, " ecode %d\n",
-				fc->params.rerror.errno);
-		break;
-
-	case P9_TFLUSH:
-		ret += scnprintf(buf+ret, buflen-ret, "Tflush tag %u oldtag %u",
-			tag, fc->params.tflush.oldtag);
-		break;
-
-	case P9_RFLUSH:
-		ret += scnprintf(buf+ret, buflen-ret, "Rflush tag %u", tag);
-		break;
-
-	case P9_TWALK:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Twalk tag %u fid %d newfid %d nwname %d", tag,
-			fc->params.twalk.fid, fc->params.twalk.newfid,
-			fc->params.twalk.nwname);
-		for (i = 0; i < fc->params.twalk.nwname; i++)
-			ret += scnprintf(buf+ret, buflen-ret, " '%.*s'",
-				fc->params.twalk.wnames[i].len,
-				fc->params.twalk.wnames[i].str);
-		break;
-
-	case P9_RWALK:
-		ret += scnprintf(buf+ret, buflen-ret, "Rwalk tag %u nwqid %d",
-			tag, fc->params.rwalk.nwqid);
-		for (i = 0; i < fc->params.rwalk.nwqid; i++)
-			ret += p9_printqid(buf+ret, buflen-ret,
-				&fc->params.rwalk.wqids[i]);
-		break;
-
-	case P9_TOPEN:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Topen tag %u fid %d mode %d", tag,
-			fc->params.topen.fid, fc->params.topen.mode);
-		break;
-
-	case P9_ROPEN:
-		ret += scnprintf(buf+ret, buflen-ret, "Ropen tag %u", tag);
-		ret += p9_printqid(buf+ret, buflen-ret, &fc->params.ropen.qid);
-		ret += scnprintf(buf+ret, buflen-ret, " iounit %d",
-			fc->params.ropen.iounit);
-		break;
-
-	case P9_TCREATE:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Tcreate tag %u fid %d name '%.*s' perm ", tag,
-			fc->params.tcreate.fid, fc->params.tcreate.name.len,
-			fc->params.tcreate.name.str);
-
-		ret += p9_printperm(buf+ret, buflen-ret,
-						fc->params.tcreate.perm);
-		ret += scnprintf(buf+ret, buflen-ret, " mode %d",
-			fc->params.tcreate.mode);
-		break;
-
-	case P9_RCREATE:
-		ret += scnprintf(buf+ret, buflen-ret, "Rcreate tag %u", tag);
-		ret += p9_printqid(buf+ret, buflen-ret,
-						&fc->params.rcreate.qid);
-		ret += scnprintf(buf+ret, buflen-ret, " iounit %d",
-			fc->params.rcreate.iounit);
-		break;
-
-	case P9_TREAD:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Tread tag %u fid %d offset %lld count %u", tag,
-			fc->params.tread.fid,
-			(long long int) fc->params.tread.offset,
-			fc->params.tread.count);
-		break;
-
-	case P9_RREAD:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Rread tag %u count %u data ", tag,
-			fc->params.rread.count);
-		ret += p9_printdata(buf+ret, buflen-ret, fc->params.rread.data,
-			fc->params.rread.count);
-		break;
-
-	case P9_TWRITE:
-		ret += scnprintf(buf+ret, buflen-ret,
-			"Twrite tag %u fid %d offset %lld count %u data ",
-			tag, fc->params.twrite.fid,
-			(long long int) fc->params.twrite.offset,
-			fc->params.twrite.count);
-		ret += p9_printdata(buf+ret, buflen-ret, fc->params.twrite.data,
-			fc->params.twrite.count);
-		break;
-
-	case P9_RWRITE:
-		ret += scnprintf(buf+ret, buflen-ret, "Rwrite tag %u count %u",
-			tag, fc->params.rwrite.count);
-		break;
-
-	case P9_TCLUNK:
-		ret += scnprintf(buf+ret, buflen-ret, "Tclunk tag %u fid %d",
-			tag, fc->params.tclunk.fid);
-		break;
-
-	case P9_RCLUNK:
-		ret += scnprintf(buf+ret, buflen-ret, "Rclunk tag %u", tag);
-		break;
-
-	case P9_TREMOVE:
-		ret += scnprintf(buf+ret, buflen-ret, "Tremove tag %u fid %d",
-			tag, fc->params.tremove.fid);
-		break;
-
-	case P9_RREMOVE:
-		ret += scnprintf(buf+ret, buflen-ret, "Rremove tag %u", tag);
-		break;
-
-	case P9_TSTAT:
-		ret += scnprintf(buf+ret, buflen-ret, "Tstat tag %u fid %d",
-			tag, fc->params.tstat.fid);
-		break;
-
-	case P9_RSTAT:
-		ret += scnprintf(buf+ret, buflen-ret, "Rstat tag %u ", tag);
-		ret += p9_printstat(buf+ret, buflen-ret, &fc->params.rstat.stat,
-			extended);
-		break;
-
-	case P9_TWSTAT:
-		ret += scnprintf(buf+ret, buflen-ret, "Twstat tag %u fid %d ",
-			tag, fc->params.twstat.fid);
-		ret += p9_printstat(buf+ret, buflen-ret,
-					&fc->params.twstat.stat, extended);
-		break;
-
-	case P9_RWSTAT:
-		ret += scnprintf(buf+ret, buflen-ret, "Rwstat tag %u", tag);
-		break;
-
-	default:
-		ret += scnprintf(buf+ret, buflen-ret, "unknown type %d", type);
-		break;
-	}
-
-	return ret;
-}
-#else
-int
-p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int extended)
-{
-	return 0;
-}
-#endif /* CONFIG_NET_9P_DEBUG */
-EXPORT_SYMBOL(p9_printfcall);
-

net/9p/trans_fd.c

@@ -650,15 +650,6 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
 	if (m->err < 0)
 		return m->err;
 
-#ifdef CONFIG_NET_9P_DEBUG
-	if ((p9_debug_level&P9_DEBUG_FCALL) == P9_DEBUG_FCALL) {
-		char buf[150];
-
-		p9_printfcall(buf, sizeof(buf), req->tc, client->dotu);
-		printk(KERN_NOTICE "<<< %p %s\n", m, buf);
-	}
-#endif
-
 	req->status = REQ_STATUS_UNSENT;
 
 	spin_lock(&client->lock);