Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: fix sparse warnings
  9p: rdma: RDMA Transport Support for 9P
  9p: fix format warning
  9p: fix debug build error

fs/9p/vfs_file.c

@@ -178,7 +178,7 @@ v9fs_file_read(struct file *filp, char __user *udata, size_t count,
 	int ret;
 	struct p9_fid *fid;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "count %d offset %lld\n", count, *offset);
+	P9_DPRINTK(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
 	fid = filp->private_data;
 
 	if (count > (fid->clnt->msize - P9_IOHDRSZ))

include/net/9p/9p.h

@@ -56,9 +56,9 @@ enum p9_debug_flags {
 	P9_DEBUG_PKT =		(1<<10),
 };
 
+#ifdef CONFIG_NET_9P_DEBUG
 extern unsigned int p9_debug_level;
 
-#ifdef CONFIG_NET_9P_DEBUG
 #define P9_DPRINTK(level, format, arg...) \
 do {  \
 	if ((p9_debug_level & level) == level) {\

include/net/9p/client.h

@@ -182,6 +182,7 @@ struct p9_fid {
 	struct list_head dlist;	/* list of all fids attached to a dentry */
 };
 
+int p9_client_version(struct p9_client *);
 struct p9_client *p9_client_create(const char *dev_name, char *options);
 void p9_client_destroy(struct p9_client *clnt);
 void p9_client_disconnect(struct p9_client *clnt);
@@ -206,6 +207,7 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst);
 struct p9_req_t *p9_tag_lookup(struct p9_client *, u16);
 void p9_client_cb(struct p9_client *c, struct p9_req_t *req);
 
+int p9_parse_header(struct p9_fcall *, int32_t *, int8_t *, int16_t *, int);
 int p9stat_read(char *, int, struct p9_wstat *, int);
 void p9stat_free(struct p9_wstat *);
 

net/9p/Kconfig

@@ -20,6 +20,12 @@ config NET_9P_VIRTIO
 	  This builds support for a transports between
 	  guest partitions and a host partition.
 
+config NET_9P_RDMA
+	depends on NET_9P && INFINIBAND && EXPERIMENTAL
+	tristate "9P RDMA Transport (Experimental)"
+	help
+	  This builds support for a RDMA transport.
+
 config NET_9P_DEBUG
 	bool "Debug information"
 	depends on NET_9P

net/9p/Makefile

 obj-$(CONFIG_NET_9P) := 9pnet.o
 obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
+obj-$(CONFIG_NET_9P_RDMA) += 9pnet_rdma.o
 
 9pnet-objs := \
 	mod.o \
@@ -11,3 +12,6 @@ obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
 
 9pnet_virtio-objs := \
 	trans_virtio.o \
+
+9pnet_rdma-objs := \
+	trans_rdma.o \

net/9p/client.c

@@ -159,6 +159,7 @@ static struct p9_req_t *p9_tag_alloc(struct p9_client *c, u16 tag)
 
 			if (!c->reqs[row]) {
 				printk(KERN_ERR "Couldn't grow tag array\n");
+				spin_unlock_irqrestore(&c->lock, flags);
 				return ERR_PTR(-ENOMEM);
 			}
 			for (col = 0; col < P9_ROW_MAXTAG; col++) {

net/9p/protocol.c

@@ -53,6 +53,7 @@
 static int
 p9pdu_writef(struct p9_fcall *pdu, int optional, const char *fmt, ...);
 
+#ifdef CONFIG_NET_9P_DEBUG
 void
 p9pdu_dump(int way, struct p9_fcall *pdu)
 {
@@ -81,6 +82,12 @@ p9pdu_dump(int way, struct p9_fcall *pdu)
 	else
 		P9_DPRINTK(P9_DEBUG_PKT, "]]](%d) %s\n", datalen, buf);
 }
+#else
+void
+p9pdu_dump(int way, struct p9_fcall *pdu)
+{
+}
+#endif
 EXPORT_SYMBOL(p9pdu_dump);
 
 void p9stat_free(struct p9_wstat *stbuf)
@@ -179,7 +186,7 @@ p9pdu_vreadf(struct p9_fcall *pdu, int optional, const char *fmt, va_list ap)
 			}
 			break;
 		case 's':{
-				char **ptr = va_arg(ap, char **);
+				char **sptr = va_arg(ap, char **);
 				int16_t len;
 				int size;
 
@@ -189,17 +196,17 @@ p9pdu_vreadf(struct p9_fcall *pdu, int optional, const char *fmt, va_list ap)
 
 				size = MAX(len, 0);
 
-				*ptr = kmalloc(size + 1, GFP_KERNEL);
-				if (*ptr == NULL) {
+				*sptr = kmalloc(size + 1, GFP_KERNEL);
+				if (*sptr == NULL) {
 					errcode = -EFAULT;
 					break;
 				}
-				if (pdu_read(pdu, *ptr, size)) {
+				if (pdu_read(pdu, *sptr, size)) {
 					errcode = -EFAULT;
-					kfree(*ptr);
-					*ptr = NULL;
+					kfree(*sptr);
+					*sptr = NULL;
 				} else
-					(*ptr)[size] = 0;
+					(*sptr)[size] = 0;
 			}
 			break;
 		case 'Q':{
@@ -373,13 +380,13 @@ p9pdu_vwritef(struct p9_fcall *pdu, int optional, const char *fmt, va_list ap)
 			}
 			break;
 		case 's':{
-				const char *ptr = va_arg(ap, const char *);
+				const char *sptr = va_arg(ap, const char *);
 				int16_t len = 0;
-				if (ptr)
-					len = MIN(strlen(ptr), USHORT_MAX);
+				if (sptr)
+					len = MIN(strlen(sptr), USHORT_MAX);
 
 				errcode = p9pdu_writef(pdu, optional, "w", len);
-				if (!errcode && pdu_write(pdu, ptr, len))
+				if (!errcode && pdu_write(pdu, sptr, len))
 					errcode = -EFAULT;
 			}
 			break;
@@ -419,7 +426,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int optional, const char *fmt, va_list ap)
 		case 'U':{
 				int32_t count = va_arg(ap, int32_t);
 				const char __user *udata =
-						va_arg(ap, const void *);
+						va_arg(ap, const void __user *);
 				errcode =
 				    p9pdu_writef(pdu, optional, "d", count);
 				if (!errcode && pdu_write_u(pdu, udata, count))
@@ -542,8 +549,10 @@ int p9pdu_finalize(struct p9_fcall *pdu)
 	err = p9pdu_writef(pdu, 0, "d", size);
 	pdu->size = size;
 
+#ifdef CONFIG_NET_9P_DEBUG
 	if ((p9_debug_level & P9_DEBUG_PKT) == P9_DEBUG_PKT)
 		p9pdu_dump(0, pdu);
+#endif
 
 	P9_DPRINTK(P9_DEBUG_9P, ">>> size=%d type: %d tag: %d\n", pdu->size,
 							pdu->id, pdu->tag);

net/9p/trans_fd.c

@@ -678,11 +678,9 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
 
 static int p9_fd_cancel(struct p9_client *client, struct p9_req_t *req)
 {
-	struct p9_trans_fd *ts = client->trans;
-	struct p9_conn *m = ts->conn;
 	int ret = 1;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p req %p\n", m, req);
+	P9_DPRINTK(P9_DEBUG_TRANS, "client %p req %p\n", client, req);
 
 	spin_lock(&client->lock);
 	list_del(&req->req_list);