Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (43 commits)
  staging: slicoss: update README
  otus/zdusb.c: additional USB idnetifier
  Staging: go7007: fix build issues
  Staging: sxg: Fix leaks and checksum errors in transmit code path
  Staging: sxg: Fix sleep in atomic context warning while loading driver
  Staging: sxg: Use correct queue_id for transmitting non-TCP packets
  Staging: sxg: Fire watchdog timer at end of open routine to change the link
  Staging: Pohmelfs: Add load balancing between network states with the same priority.
  Staging: Pohmelfs: Added IO permissions and priorities.
  Staging: Pohmelfs: Added ->show_stats() callback.
  Staging: Pohmelfs: Drop ftrans debugging code.
  Staging: Pohmelfs: Use wait_on_page_timeout when waiting for remote directory sync instead of hardcoded 25 seconds.
  Staging: Pohmelfs: Reduce debugging noise about non-existing objects.
  Staging: Pohmelfs: Sync fs before killing it, since dentry cache is shrunk before writeback is invoked via generic_shutdown_super()
  Staging: Pohmelfs: Extend remount option.
  Staging: Pohmelfs: Set NETFS_INODE_REMOTE_SYNCED and clear NETFS_INODE_OWNED bits in the root inode.
  Staging: Pohmelfs: Added 'need_lock' variable into debug print.
  Staging: Pohmelfs: Disable read lock in pohmelfs_getattr().
  Staging: Pohmelfs: Move parent lock to the place where we really have to send a lookup request to the server.
  Staging: pohmelfs: Populate dentry cache when receiving the new readdir entry.
  ...

Documentation/filesystems/pohmelfs/design_notes.txt

@@ -56,9 +56,10 @@ workloads and can fully utilize the bandwidth to the servers when doing bulk
 data transfers.
 
 POHMELFS clients operate with a working set of servers and are capable of balancing read-only
-operations (like lookups or directory listings) between them.
+operations (like lookups or directory listings) between them according to IO priorities.
 Administrators can add or remove servers from the set at run-time via special commands (described
-in Documentation/pohmelfs/info.txt file). Writes are replicated to all servers.
+in Documentation/pohmelfs/info.txt file). Writes are replicated to all servers, which are connected
+with write permission turned on. IO priority and permissions can be changed in run-time.
 
 POHMELFS is capable of full data channel encryption and/or strong crypto hashing.
 One can select any kernel supported cipher, encryption mode, hash type and operation mode

Documentation/filesystems/pohmelfs/info.txt

@@ -1,6 +1,8 @@
 POHMELFS usage information.
 
-Mount options:
+Mount options.
+All but index, number of crypto threads and maximum IO size can changed via remount.
+
 idx=%u
  Each mountpoint is associated with a special index via this option.
  Administrator can add or remove servers from the given index, so all mounts,
@@ -52,16 +54,27 @@ mcache_timeout=%u
 
 Usage examples.
 
-Add (or remove if it already exists) server server1.net:1025 into the working set with index $idx
+Add server server1.net:1025 into the working set with index $idx
 with appropriate hash algorithm and key file and cipher algorithm, mode and key file:
-$cfg -a server1.net -p 1025 -i $idx -K $hash_key -k $cipher_key
+$cfg A add -a server1.net -p 1025 -i $idx -K $hash_key -k $cipher_key
 
 Mount filesystem with given index $idx to /mnt mountpoint.
 Client will connect to all servers specified in the working set via previous command:
 mount -t pohmel -o idx=$idx q /mnt
 
-One can add or remove servers from working set after mounting too.
+Change permissions to read-only (-I 1 option, '-I 2' - write-only, 3 - rw):
+$cfg A modify -a server1.net -p 1025 -i $idx -I 1
+
+Change IO priority to 123 (node with the highest priority gets read requests).
+$cfg A modify -a server1.net -p 1025 -i $idx -P 123
 
+One can check currect status of all connections in the mountstats file:
+# cat /proc/$PID/mountstats
+...
+device none mounted on /mnt with fstype pohmel
+idx addr(:port) socket_type protocol active priority permissions
+0 server1.net:1026 1 6 1 250 1
+0 server2.net:1025 1 6 1 123 3
 
 Server installation.
 

drivers/staging/android/binder.c

@@ -41,6 +41,8 @@ static int binder_last_id;
 static struct proc_dir_entry *binder_proc_dir_entry_root;
 static struct proc_dir_entry *binder_proc_dir_entry_proc;
 static struct hlist_head binder_dead_nodes;
+static HLIST_HEAD(binder_deferred_list);
+static DEFINE_MUTEX(binder_deferred_lock);
 
 static int binder_read_proc_proc(
 	char *page, char **start, off_t off, int count, int *eof, void *data);
@@ -54,11 +56,7 @@ static int binder_read_proc_proc(
 #define SZ_4M                               0x400000
 #endif
 
-#ifndef __i386__
-#define FORBIDDEN_MMAP_FLAGS                (VM_WRITE | VM_EXEC)
-#else
 #define FORBIDDEN_MMAP_FLAGS                (VM_WRITE)
-#endif
 
 #define BINDER_SMALL_BUF_SIZE (PAGE_SIZE * 64)
 
@@ -236,6 +234,12 @@ struct binder_buffer {
 	uint8_t data[0];
 };
 
+enum {
+	BINDER_DEFERRED_PUT_FILES    = 0x01,
+	BINDER_DEFERRED_FLUSH        = 0x02,
+	BINDER_DEFERRED_RELEASE      = 0x04,
+};
+
 struct binder_proc {
 	struct hlist_node proc_node;
 	struct rb_root threads;
@@ -245,8 +249,11 @@ struct binder_proc {
 	int pid;
 	struct vm_area_struct *vma;
 	struct task_struct *tsk;
+	struct files_struct *files;
+	struct hlist_node deferred_work_node;
+	int deferred_work;
 	void *buffer;
-	size_t user_buffer_offset;
+	ptrdiff_t user_buffer_offset;
 
 	struct list_head buffers;
 	struct rb_root free_buffers;
@@ -310,12 +317,14 @@ struct binder_transaction {
 	uid_t	sender_euid;
 };
 
+static void binder_defer_work(struct binder_proc *proc, int defer);
+
 /*
  * copied from get_unused_fd_flags
  */
-int task_get_unused_fd_flags(struct task_struct *tsk, int flags)
+int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
 {
-	struct files_struct *files = get_files_struct(tsk);
+	struct files_struct *files = proc->files;
 	int fd, error;
 	struct fdtable *fdt;
 	unsigned long rlim_cur;
@@ -337,9 +346,9 @@ repeat:
 	 * will limit the total number of files that can be opened.
 	 */
 	rlim_cur = 0;
-	if (lock_task_sighand(tsk, &irqs)) {
-		rlim_cur = tsk->signal->rlim[RLIMIT_NOFILE].rlim_cur;
-		unlock_task_sighand(tsk, &irqs);
+	if (lock_task_sighand(proc->tsk, &irqs)) {
+		rlim_cur = proc->tsk->signal->rlim[RLIMIT_NOFILE].rlim_cur;
+		unlock_task_sighand(proc->tsk, &irqs);
 	}
 	if (fd >= rlim_cur)
 		goto out;
@@ -375,7 +384,6 @@ repeat:
 
 out:
 	spin_unlock(&files->file_lock);
-	put_files_struct(files);
 	return error;
 }
 
@@ -383,9 +391,9 @@ out:
  * copied from fd_install
  */
 static void task_fd_install(
-	struct task_struct *tsk, unsigned int fd, struct file *file)
+	struct binder_proc *proc, unsigned int fd, struct file *file)
 {
-	struct files_struct *files = get_files_struct(tsk);
+	struct files_struct *files = proc->files;
 	struct fdtable *fdt;
 
 	if (files == NULL)
@@ -396,7 +404,6 @@ static void task_fd_install(
 	BUG_ON(fdt->fd[fd] != NULL);
 	rcu_assign_pointer(fdt->fd[fd], file);
 	spin_unlock(&files->file_lock);
-	put_files_struct(files);
 }
 
 /*
@@ -413,10 +420,10 @@ static void __put_unused_fd(struct files_struct *files, unsigned int fd)
 /*
  * copied from sys_close
  */
-static long task_close_fd(struct task_struct *tsk, unsigned int fd)
+static long task_close_fd(struct binder_proc *proc, unsigned int fd)
 {
 	struct file *filp;
-	struct files_struct *files = get_files_struct(tsk);
+	struct files_struct *files = proc->files;
 	struct fdtable *fdt;
 	int retval;
 
@@ -443,12 +450,10 @@ static long task_close_fd(struct task_struct *tsk, unsigned int fd)
 		     retval == -ERESTART_RESTARTBLOCK))
 		retval = -EINTR;
 
-	put_files_struct(files);
 	return retval;
 
 out_unlock:
 	spin_unlock(&files->file_lock);
-	put_files_struct(files);
 	return -EBADF;
 }
 
@@ -618,7 +623,8 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 			       proc->pid, page_addr);
 			goto err_map_kernel_failed;
 		}
-		user_page_addr = (size_t)page_addr + proc->user_buffer_offset;
+		user_page_addr =
+			(uintptr_t)page_addr + proc->user_buffer_offset;
 		ret = vm_insert_page(vma, user_page_addr, page[0]);
 		if (ret) {
 			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
@@ -639,7 +645,7 @@ free_range:
 	     page_addr -= PAGE_SIZE) {
 		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
 		if (vma)
-			zap_page_range(vma, (size_t)page_addr +
+			zap_page_range(vma, (uintptr_t)page_addr +
 				proc->user_buffer_offset, PAGE_SIZE, NULL);
 err_vm_insert_page_failed:
 		unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
@@ -720,18 +726,19 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 		       "er %p size %zd\n", proc->pid, size, buffer, buffer_size);
 
 	has_page_addr =
-		(void *)(((size_t)buffer->data + buffer_size) & PAGE_MASK);
+		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
 	if (n == NULL) {
 		if (size + sizeof(struct binder_buffer) + 4 >= buffer_size)
 			buffer_size = size; /* no room for other buffers */
 		else
 			buffer_size = size + sizeof(struct binder_buffer);
 	}
-	end_page_addr = (void *)PAGE_ALIGN((size_t)buffer->data + buffer_size);
+	end_page_addr =
+		(void *)PAGE_ALIGN((uintptr_t)buffer->data + buffer_size);
 	if (end_page_addr > has_page_addr)
 		end_page_addr = has_page_addr;
 	if (binder_update_page_range(proc, 1,
-	    (void *)PAGE_ALIGN((size_t)buffer->data), end_page_addr, NULL))
+	    (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL))
 		return NULL;
 
 	rb_erase(best_fit, &proc->free_buffers);
@@ -762,12 +769,12 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 
 static void *buffer_start_page(struct binder_buffer *buffer)
 {
-	return (void *)((size_t)buffer & PAGE_MASK);
+	return (void *)((uintptr_t)buffer & PAGE_MASK);
 }
 
 static void *buffer_end_page(struct binder_buffer *buffer)
 {
-	return (void *)(((size_t)(buffer + 1) - 1) & PAGE_MASK);
+	return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK);
 }
 
 static void binder_delete_free_buffer(
@@ -845,8 +852,8 @@ static void binder_free_buf(
 	}
 
 	binder_update_page_range(proc, 0,
-		(void *)PAGE_ALIGN((size_t)buffer->data),
-		(void *)(((size_t)buffer->data + buffer_size) & PAGE_MASK),
+		(void *)PAGE_ALIGN((uintptr_t)buffer->data),
+		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK),
 		NULL);
 	rb_erase(&buffer->rb_node, &proc->allocated_buffers);
 	buffer->free = 1;
@@ -1345,6 +1352,17 @@ binder_transaction(struct binder_proc *proc, struct binder_thread *thread,
 		if (!(tr->flags & TF_ONE_WAY) && thread->transaction_stack) {
 			struct binder_transaction *tmp;
 			tmp = thread->transaction_stack;
+			if (tmp->to_thread != thread) {
+				binder_user_error("binder: %d:%d got new "
+					"transaction with bad transaction stack"
+					", transaction %d has target %d:%d\n",
+					proc->pid, thread->pid, tmp->debug_id,
+					tmp->to_proc ? tmp->to_proc->pid : 0,
+					tmp->to_thread ?
+					tmp->to_thread->pid : 0);
+				return_error = BR_FAILED_REPLY;
+				goto err_bad_call_stack;
+			}
 			while (tmp) {
 				if (tmp->from && tmp->from->proc == target_proc)
 					target_thread = tmp->from;
@@ -1434,10 +1452,19 @@ binder_transaction(struct binder_proc *proc, struct binder_thread *thread,
 		return_error = BR_FAILED_REPLY;
 		goto err_copy_data_failed;
 	}
+	if (!IS_ALIGNED(tr->offsets_size, sizeof(size_t))) {
+		binder_user_error("binder: %d:%d got transaction with "
+			"invalid offsets size, %zd\n",
+			proc->pid, thread->pid, tr->offsets_size);
+		return_error = BR_FAILED_REPLY;
+		goto err_bad_offset;
+	}
 	off_end = (void *)offp + tr->offsets_size;
 	for (; offp < off_end; offp++) {
 		struct flat_binder_object *fp;
-		if (*offp > t->buffer->data_size - sizeof(*fp)) {
+		if (*offp > t->buffer->data_size - sizeof(*fp) ||
+		    t->buffer->data_size < sizeof(*fp) ||
+		    !IS_ALIGNED(*offp, sizeof(void *))) {
 			binder_user_error("binder: %d:%d got transaction with "
 				"invalid offset, %zd\n",
 				proc->pid, thread->pid, *offp);
@@ -1544,13 +1571,13 @@ binder_transaction(struct binder_proc *proc, struct binder_thread *thread,
 				return_error = BR_FAILED_REPLY;
 				goto err_fget_failed;
 			}
-			target_fd = task_get_unused_fd_flags(target_proc->tsk, O_CLOEXEC);
+			target_fd = task_get_unused_fd_flags(target_proc, O_CLOEXEC);
 			if (target_fd < 0) {
 				fput(file);
 				return_error = BR_FAILED_REPLY;
 				goto err_get_unused_fd_failed;
 			}
-			task_fd_install(target_proc->tsk, target_fd, file);
+			task_fd_install(target_proc, target_fd, file);
 			if (binder_debug_mask & BINDER_DEBUG_TRANSACTION)
 				printk(KERN_INFO "        fd %ld -> %d\n", fp->handle, target_fd);
 			/* TODO: fput? */
@@ -1655,7 +1682,9 @@ binder_transaction_buffer_release(struct binder_proc *proc, struct binder_buffer
 		off_end = (void *)offp + buffer->offsets_size;
 	for (; offp < off_end; offp++) {
 		struct flat_binder_object *fp;
-		if (*offp > buffer->data_size - sizeof(*fp)) {
+		if (*offp > buffer->data_size - sizeof(*fp) ||
+		    buffer->data_size < sizeof(*fp) ||
+		    !IS_ALIGNED(*offp, sizeof(void *))) {
 			printk(KERN_ERR "binder: transaction release %d bad"
 					"offset %zd, size %zd\n", debug_id, *offp, buffer->data_size);
 			continue;
@@ -1691,7 +1720,7 @@ binder_transaction_buffer_release(struct binder_proc *proc, struct binder_buffer
 			if (binder_debug_mask & BINDER_DEBUG_TRANSACTION)
 				printk(KERN_INFO "        fd %ld\n", fp->handle);
 			if (failed_at)
-				task_close_fd(proc->tsk, fp->handle);
+				task_close_fd(proc, fp->handle);
 			break;
 
 		default:
@@ -2340,7 +2369,7 @@ retry:
 
 		tr.data_size = t->buffer->data_size;
 		tr.offsets_size = t->buffer->offsets_size;
-		tr.data.ptr.buffer = (void *)((void *)t->buffer->data + proc->user_buffer_offset);
+		tr.data.ptr.buffer = (void *)t->buffer->data + proc->user_buffer_offset;
 		tr.data.ptr.offsets = tr.data.ptr.buffer + ALIGN(t->buffer->data_size, sizeof(void *));
 
 		if (put_user(cmd, (uint32_t __user *)ptr))
@@ -2656,6 +2685,7 @@ static void binder_vma_open(struct vm_area_struct *vma)
 			(unsigned long)pgprot_val(vma->vm_page_prot));
 	dump_stack();
 }
+
 static void binder_vma_close(struct vm_area_struct *vma)
 {
 	struct binder_proc *proc = vma->vm_private_data;
@@ -2666,6 +2696,7 @@ static void binder_vma_close(struct vm_area_struct *vma)
 			(vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
 			(unsigned long)pgprot_val(vma->vm_page_prot));
 	proc->vma = NULL;
+	binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES);
 }
 
 static struct vm_operations_struct binder_vm_ops = {
@@ -2698,6 +2729,12 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 	vma->vm_flags = (vma->vm_flags | VM_DONTCOPY) & ~VM_MAYWRITE;
 
+	if (proc->buffer) {
+		ret = -EBUSY;
+		failure_string = "already mapped";
+		goto err_already_mapped;
+	}
+
 	area = get_vm_area(vma->vm_end - vma->vm_start, VM_IOREMAP);
 	if (area == NULL) {
 		ret = -ENOMEM;
@@ -2705,7 +2742,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 		goto err_get_vm_area_failed;
 	}
 	proc->buffer = area->addr;
-	proc->user_buffer_offset = vma->vm_start - (size_t)proc->buffer;
+	proc->user_buffer_offset = vma->vm_start - (uintptr_t)proc->buffer;
 
 #ifdef CONFIG_CPU_CACHE_VIPT
 	if (cache_is_vipt_aliasing()) {
@@ -2738,6 +2775,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	binder_insert_free_buffer(proc, buffer);
 	proc->free_async_space = proc->buffer_size / 2;
 	barrier();
+	proc->files = get_files_struct(current);
 	proc->vma = vma;
 
 	/*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n", proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/
@@ -2745,10 +2783,12 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 
 err_alloc_small_buf_failed:
 	kfree(proc->pages);
+	proc->pages = NULL;
 err_alloc_pages_failed:
 	vfree(proc->buffer);
+	proc->buffer = NULL;
 err_get_vm_area_failed:
-	mutex_unlock(&binder_lock);
+err_already_mapped:
 err_bad_arg:
 	printk(KERN_ERR "binder_mmap: %d %lx-%lx %s failed %d\n", proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
 	return ret;
@@ -2780,6 +2820,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	if (binder_proc_dir_entry_proc) {
 		char strbuf[11];
 		snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
+		remove_proc_entry(strbuf, binder_proc_dir_entry_proc);
 		create_proc_read_entry(strbuf, S_IRUGO, binder_proc_dir_entry_proc, binder_read_proc_proc, proc);
 	}
 
@@ -2788,11 +2829,17 @@ static int binder_open(struct inode *nodp, struct file *filp)
 
 static int binder_flush(struct file *filp, fl_owner_t id)
 {
-	struct rb_node *n;
 	struct binder_proc *proc = filp->private_data;
-	int wake_count = 0;
 
-	mutex_lock(&binder_lock);
+	binder_defer_work(proc, BINDER_DEFERRED_FLUSH);
+
+	return 0;
+}
+
+static void binder_deferred_flush(struct binder_proc *proc)
+{
+	struct rb_node *n;
+	int wake_count = 0;
 	for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n)) {
 		struct binder_thread *thread = rb_entry(n, struct binder_thread, rb_node);
 		thread->looper |= BINDER_LOOPER_STATE_NEED_RETURN;
@@ -2802,28 +2849,35 @@ static int binder_flush(struct file *filp, fl_owner_t id)
 		}
 	}
 	wake_up_interruptible_all(&proc->wait);
-	mutex_unlock(&binder_lock);
 
 	if (binder_debug_mask & BINDER_DEBUG_OPEN_CLOSE)
 		printk(KERN_INFO "binder_flush: %d woke %d threads\n", proc->pid, wake_count);
-
-	return 0;
 }
 
 static int binder_release(struct inode *nodp, struct file *filp)
 {
-	struct hlist_node *pos;
-	struct binder_transaction *t;
-	struct rb_node *n;
 	struct binder_proc *proc = filp->private_data;
-	int threads, nodes, incoming_refs, outgoing_refs, buffers, active_transactions, page_count;
-
 	if (binder_proc_dir_entry_proc) {
 		char strbuf[11];
 		snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
 		remove_proc_entry(strbuf, binder_proc_dir_entry_proc);
 	}
-	mutex_lock(&binder_lock);
+
+	binder_defer_work(proc, BINDER_DEFERRED_RELEASE);
+
+	return 0;
+}
+
+static void binder_deferred_release(struct binder_proc *proc)
+{
+	struct hlist_node *pos;
+	struct binder_transaction *t;
+	struct rb_node *n;
+	int threads, nodes, incoming_refs, outgoing_refs, buffers, active_transactions, page_count;
+
+	BUG_ON(proc->vma);
+	BUG_ON(proc->files);
+
 	hlist_del(&proc->proc_node);
 	if (binder_context_mgr_node && binder_context_mgr_node->proc == proc) {
 		if (binder_debug_mask & BINDER_DEBUG_DEAD_BINDER)
@@ -2897,7 +2951,6 @@ static int binder_release(struct inode *nodp, struct file *filp)
 	}
 
 	binder_stats.obj_deleted[BINDER_STAT_PROC]++;
-	mutex_unlock(&binder_lock);
 
 	page_count = 0;
 	if (proc->pages) {
@@ -2921,7 +2974,57 @@ static int binder_release(struct inode *nodp, struct file *filp)
 		       proc->pid, threads, nodes, incoming_refs, outgoing_refs, active_transactions, buffers, page_count);
 
 	kfree(proc);
-	return 0;
+}
+
+static void binder_deferred_func(struct work_struct *work)
+{
+	struct binder_proc *proc;
+	struct files_struct *files;
+
+	int defer;
+	do {
+		mutex_lock(&binder_lock);
+		mutex_lock(&binder_deferred_lock);
+		if (!hlist_empty(&binder_deferred_list)) {
+			proc = hlist_entry(binder_deferred_list.first,
+					struct binder_proc, deferred_work_node);
+			hlist_del_init(&proc->deferred_work_node);
+			defer = proc->deferred_work;
+			proc->deferred_work = 0;
+		} else {
+			proc = NULL;
+			defer = 0;
+		}
+		mutex_unlock(&binder_deferred_lock);
+
+		files = NULL;
+		if (defer & BINDER_DEFERRED_PUT_FILES)
+			if ((files = proc->files))
+				proc->files = NULL;
+
+		if (defer & BINDER_DEFERRED_FLUSH)
+			binder_deferred_flush(proc);
+
+		if (defer & BINDER_DEFERRED_RELEASE)
+			binder_deferred_release(proc); /* frees proc */
+
+		mutex_unlock(&binder_lock);
+		if (files)
+			put_files_struct(files);
+	} while (proc);
+}
+static DECLARE_WORK(binder_deferred_work, binder_deferred_func);
+
+static void binder_defer_work(struct binder_proc *proc, int defer)
+{
+	mutex_lock(&binder_deferred_lock);
+	proc->deferred_work |= defer;
+	if (hlist_unhashed(&proc->deferred_work_node)) {
+		hlist_add_head(&proc->deferred_work_node,
+				&binder_deferred_list);
+		schedule_work(&binder_deferred_work);
+	}
+	mutex_unlock(&binder_deferred_lock);
 }
 
 static char *print_binder_transaction(char *buf, char *end, const char *prefix, struct binder_transaction *t)

drivers/staging/at76_usb/at76_usb.c

@@ -5259,6 +5259,18 @@ static int at76_alloc_urbs(struct at76_priv *priv,
 	return 0;
 }
 
+static const struct net_device_ops at76_netdev_ops = {
+	.ndo_open		= at76_open,
+	.ndo_stop		= at76_stop,
+	.ndo_get_stats		= at76_get_stats,
+	.ndo_start_xmit		= at76_tx,
+	.ndo_tx_timeout		= at76_tx_timeout,
+	.ndo_set_multicast_list	= at76_set_multicast,
+	.ndo_set_mac_address	= at76_set_mac_address,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+};
+
 /* Register network device and initialize the hardware */
 static int at76_init_new_device(struct at76_priv *priv,
 				struct usb_interface *interface)
@@ -5303,21 +5315,15 @@ static int at76_init_new_device(struct at76_priv *priv,
 	priv->scan_mode = SCAN_TYPE_ACTIVE;
 
 	netdev->flags &= ~IFF_MULTICAST;	/* not yet or never */
-	netdev->open = at76_open;
-	netdev->stop = at76_stop;
-	netdev->get_stats = at76_get_stats;
+	netdev->netdev_ops = &at76_netdev_ops;
 	netdev->ethtool_ops = &at76_ethtool_ops;
 
 	/* Add pointers to enable iwspy support. */
 	priv->wireless_data.spy_data = &priv->spy_data;
 	netdev->wireless_data = &priv->wireless_data;
 
-	netdev->hard_start_xmit = at76_tx;
-	netdev->tx_timeout = at76_tx_timeout;
 	netdev->watchdog_timeo = 2 * HZ;
 	netdev->wireless_handlers = &at76_handler_def;
-	netdev->set_multicast_list = at76_set_multicast;
-	netdev->set_mac_address = at76_set_mac_address;
 	dev_alloc_name(netdev, "wlan%d");
 
 	ret = register_netdev(priv->netdev);

drivers/staging/epl/VirtualEthernetLinux.c

@@ -284,6 +284,17 @@ static tEplKernel VEthRecvFrame(tEplFrameInfo * pFrameInfo_p)
 	return Ret;
 }
 
+static const struct net_device_ops epl_netdev_ops = {
+	.ndo_open		= VEthOpen,
+	.ndo_stop		= VEthClose,
+	.ndo_get_stats		= VEthGetStats,
+	.ndo_start_xmit		= VEthXmit,
+	.ndo_tx_timeout		= VEthTimeout,
+	.ndo_change_mtu		= eth_change_mtu,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
 tEplKernel VEthAddInstance(tEplDllkInitParam *pInitParam_p)
 {
 	tEplKernel Ret = kEplSuccessful;
@@ -299,11 +310,7 @@ tEplKernel VEthAddInstance(tEplDllkInitParam *pInitParam_p)
 		goto Exit;
 	}
 
-	pVEthNetDevice_g->open = VEthOpen;
-	pVEthNetDevice_g->stop = VEthClose;
-	pVEthNetDevice_g->get_stats = VEthGetStats;
-	pVEthNetDevice_g->hard_start_xmit = VEthXmit;
-	pVEthNetDevice_g->tx_timeout = VEthTimeout;
+	pVEthNetDevice_g->netdev_ops = &epl_netdev_ops;
 	pVEthNetDevice_g->watchdog_timeo = EPL_VETH_TX_TIMEOUT;
 	pVEthNetDevice_g->destructor = free_netdev;
 

drivers/staging/et131x/et131x_netdev.c

@@ -112,6 +112,19 @@ void et131x_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
 void et131x_vlan_rx_add_vid(struct net_device *netdev, uint16_t vid);
 void et131x_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid);
 
+static const struct net_device_ops et131x_netdev_ops = {
+	.ndo_open		= et131x_open,
+	.ndo_stop		= et131x_close,
+	.ndo_start_xmit		= et131x_tx,
+	.ndo_set_multicast_list	= et131x_multicast,
+	.ndo_tx_timeout		= et131x_tx_timeout,
+	.ndo_change_mtu		= et131x_change_mtu,
+	.ndo_set_mac_address	= et131x_set_mac_addr,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_get_stats		= et131x_stats,
+	.ndo_do_ioctl		= et131x_ioctl,
+};
+
 /**
  * et131x_device_alloc
  *
@@ -142,16 +155,8 @@ struct net_device *et131x_device_alloc(void)
 	 */
 	//netdev->init               = &et131x_init;
 	//netdev->set_config = &et131x_config;
-	netdev->get_stats = &et131x_stats;
-	netdev->open = &et131x_open;
-	netdev->stop = &et131x_close;
-	netdev->do_ioctl = &et131x_ioctl;
-	netdev->set_multicast_list = &et131x_multicast;
-	netdev->hard_start_xmit = &et131x_tx;
-	netdev->tx_timeout = &et131x_tx_timeout;
 	netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
-	netdev->change_mtu = &et131x_change_mtu;
-	netdev->set_mac_address = &et131x_set_mac_addr;
+	netdev->netdev_ops = &et131x_netdev_ops;
 
 	//netdev->ethtool_ops        = &et131x_ethtool_ops;
 

drivers/staging/go7007/go7007-driver.c

@@ -268,21 +268,6 @@ int go7007_register_encoder(struct go7007 *go)
 			init_i2c_module(&go->i2c_adapter,
 					go->board_info->i2c_devs[i].id,
 					go->board_info->i2c_devs[i].addr);
-#ifdef TUNER_SET_TYPE_ADDR
-		if (go->tuner_type >= 0) {
-			struct tuner_setup tun_setup = {
-				.mode_mask	= T_ANALOG_TV,
-				.addr		= ADDR_UNSET,
-				.type		= go->tuner_type
-			};
-			i2c_clients_command(&go->i2c_adapter,
-				TUNER_SET_TYPE_ADDR, &tun_setup);
-		}
-#else
-		if (go->tuner_type >= 0)
-			i2c_clients_command(&go->i2c_adapter,
-				TUNER_SET_TYPE, &go->tuner_type);
-#endif
 		if (go->board_id == GO7007_BOARDID_ADLINK_MPG24)
 			i2c_clients_command(&go->i2c_adapter,
 				DECODER_SET_CHANNEL, &go->channel_number);

drivers/staging/go7007/wis-sony-tuner.c

@@ -386,6 +386,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 	struct wis_sony_tuner *t = i2c_get_clientdata(client);
 
 	switch (cmd) {
+#if 0
 #ifdef TUNER_SET_TYPE_ADDR
 	case TUNER_SET_TYPE_ADDR:
 	{
@@ -463,6 +464,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 				t->type, sony_tuners[t->type - 200].name);
 		break;
 	}
+#endif
 	case VIDIOC_G_FREQUENCY:
 	{
 		struct v4l2_frequency *f = arg;

drivers/staging/line6/audio.c

@@ -27,11 +27,12 @@ int line6_init_audio(struct usb_line6 *line6)
 {
 	static int dev;
 	struct snd_card *card;
+	int err;
 
-	card = snd_card_new(line6_index[dev], line6_id[dev], THIS_MODULE, 0);
-
-	if (card == NULL)
-		return -ENOMEM;
+	err = snd_card_create(line6_index[dev], line6_id[dev], THIS_MODULE, 0,
+			      &card);
+	if (err < 0)
+		return err;
 
 	line6->card = card;
 

drivers/staging/otus/usbdrv.c

@@ -822,6 +822,21 @@ int zfLnxVapXmitFrame(struct sk_buff *skb, struct net_device *dev)
     return 0;
 }
 
+static const struct net_device_ops vap_netdev_ops = {
+	.ndo_open		= zfLnxVapOpen,
+	.ndo_stop		= zfLnxVapClose,
+	.ndo_start_xmit		= zfLnxVapXmitFrame,
+	.ndo_get_stats		= usbdrv_get_stats,
+	.ndo_change_mtu		= usbdrv_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+#ifdef ZM_HOSTAPD_SUPPORT
+	.ndo_do_ioctl		= usbdrv_ioctl,
+#else
+	.ndo_do_ioctl		= NULL,
+#endif
+};
+
 int zfLnxRegisterVapDev(struct net_device* parentDev, u16_t vapId)
 {
     /* Allocate net device structure */
@@ -846,16 +861,7 @@ int zfLnxRegisterVapDev(struct net_device* parentDev, u16_t vapId)
     vap[vapId].dev->ml_priv = parentDev->ml_priv;
 
     //dev->hard_start_xmit = &zd1212_wds_xmit_frame;
-    vap[vapId].dev->hard_start_xmit = &zfLnxVapXmitFrame;
-    vap[vapId].dev->open = &zfLnxVapOpen;
-    vap[vapId].dev->stop = &zfLnxVapClose;
-    vap[vapId].dev->get_stats = &usbdrv_get_stats;
-    vap[vapId].dev->change_mtu = &usbdrv_change_mtu;
-#ifdef ZM_HOSTAPD_SUPPORT
-    vap[vapId].dev->do_ioctl = usbdrv_ioctl;
-#else
-    vap[vapId].dev->do_ioctl = NULL;
-#endif
+    vap[vapId].dev->netdev_ops = &vap_netdev_ops;
     vap[vapId].dev->destructor = free_netdev;
 
     vap[vapId].dev->tx_queue_len = 0;
@@ -1068,6 +1074,18 @@ void zfLnxUnlinkAllUrbs(struct usbdrv_private *macp)
     usb_unlink_urb(macp->RegInUrb);
 }
 
+static const struct net_device_ops otus_netdev_ops = {
+	.ndo_open		= usbdrv_open,
+	.ndo_stop		= usbdrv_close,
+	.ndo_start_xmit		= usbdrv_xmit_frame,
+	.ndo_change_mtu		= usbdrv_change_mtu,
+	.ndo_get_stats		= usbdrv_get_stats,
+	.ndo_set_multicast_list	= usbdrv_set_multi,
+	.ndo_set_mac_address	= usbdrv_set_mac,
+	.ndo_do_ioctl		= usbdrv_ioctl,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
 u8_t zfLnxInitSetup(struct net_device *dev, struct usbdrv_private *macp)
 {
     //unsigned char addr[6];
@@ -1092,14 +1110,7 @@ u8_t zfLnxInitSetup(struct net_device *dev, struct usbdrv_private *macp)
     dev->wireless_handlers = (struct iw_handler_def *)&p80211wext_handler_def;
 #endif
 
-    dev->open = usbdrv_open;
-    dev->hard_start_xmit = usbdrv_xmit_frame;
-    dev->stop = usbdrv_close;
-    dev->change_mtu = &usbdrv_change_mtu;
-    dev->get_stats = usbdrv_get_stats;
-    dev->set_multicast_list = usbdrv_set_multi;
-    dev->set_mac_address = usbdrv_set_mac;
-    dev->do_ioctl = usbdrv_ioctl;
+    dev->netdev_ops = &otus_netdev_ops;
 
     dev->flags |= IFF_MULTICAST;
 

drivers/staging/otus/zdusb.c

@@ -48,7 +48,8 @@ static const char driver_name[] = "Otus";
 static struct usb_device_id zd1221_ids [] = {
 	{ USB_DEVICE(VENDOR_ATHR, PRODUCT_AR9170) },
         { USB_DEVICE(VENDOR_DLINK, PRODUCT_DWA160A) },
-	{ USB_DEVICE(0x0846, 0x9010) },
+	{ USB_DEVICE(VENDOR_NETGEAR, PRODUCT_WNDA3100) },
+	{ USB_DEVICE(VENDOR_NETGEAR, PRODUCT_WN111v2) },
 	{ }					/* Terminating entry */
 };
 

drivers/staging/otus/zdusb.h

@@ -40,4 +40,8 @@
 #define VENDOR_DLINK            0x07D1  //Dlink
 #define PRODUCT_DWA160A         0x3C10
 
+#define	VENDOR_NETGEAR		0x0846	/* NetGear */
+#define	PRODUCT_WNDA3100	0x9010
+#define	PRODUCT_WN111v2		0x9001
+
 #endif

drivers/staging/pohmelfs/config.c

@@ -81,6 +81,45 @@ static struct pohmelfs_config_group *pohmelfs_find_create_config_group(unsigned
 	return g;
 }
 
+static inline void pohmelfs_insert_config_entry(struct pohmelfs_sb *psb, struct pohmelfs_config *dst)
+{
+	struct pohmelfs_config *tmp;
+
+	INIT_LIST_HEAD(&dst->config_entry);
+
+	list_for_each_entry(tmp, &psb->state_list, config_entry) {
+		if (dst->state.ctl.prio > tmp->state.ctl.prio)
+			list_add_tail(&dst->config_entry, &tmp->config_entry);
+	}
+	if (list_empty(&dst->config_entry))
+		list_add_tail(&dst->config_entry, &psb->state_list);
+}
+
+static int pohmelfs_move_config_entry(struct pohmelfs_sb *psb,
+		struct pohmelfs_config *dst, struct pohmelfs_config *new)
+{
+	if ((dst->state.ctl.prio == new->state.ctl.prio) &&
+		(dst->state.ctl.perm == new->state.ctl.perm))
+		return 0;
+
+	dprintk("%s: dst: prio: %d, perm: %x, new: prio: %d, perm: %d.\n",
+			__func__, dst->state.ctl.prio, dst->state.ctl.perm,
+			new->state.ctl.prio, new->state.ctl.perm);
+	dst->state.ctl.prio = new->state.ctl.prio;
+	dst->state.ctl.perm = new->state.ctl.perm;
+
+	list_del_init(&dst->config_entry);
+	pohmelfs_insert_config_entry(psb, dst);
+	return 0;
+}
+
+/*
+ * pohmelfs_copy_config() is used to copy new state configs from the
+ * config group (controlled by the netlink messages) into the superblock.
+ * This happens either at startup time where no transactions can access
+ * the list of the configs (and thus list of the network states), or at
+ * run-time, where it is protected by the psb->state_lock.
+ */
 int pohmelfs_copy_config(struct pohmelfs_sb *psb)
 {
 	struct pohmelfs_config_group *g;
@@ -103,7 +142,9 @@ int pohmelfs_copy_config(struct pohmelfs_sb *psb)
 		err = 0;
 		list_for_each_entry(dst, &psb->state_list, config_entry) {
 			if (pohmelfs_config_eql(&dst->state.ctl, &c->state.ctl)) {
-				err = -EEXIST;
+				err = pohmelfs_move_config_entry(psb, dst, c);
+				if (!err)
+					err = -EEXIST;
 				break;
 			}
 		}
@@ -119,7 +160,7 @@ int pohmelfs_copy_config(struct pohmelfs_sb *psb)
 
 		memcpy(&dst->state.ctl, &c->state.ctl, sizeof(struct pohmelfs_ctl));
 
-		list_add_tail(&dst->config_entry, &psb->state_list);
+		pohmelfs_insert_config_entry(psb, dst);
 
 		err = pohmelfs_state_init_one(psb, dst);
 		if (err) {
@@ -248,6 +289,13 @@ out_unlock:
         return err;
 }
 
+static int pohmelfs_modify_config(struct pohmelfs_ctl *old, struct pohmelfs_ctl *new)
+{
+	old->perm = new->perm;
+	old->prio = new->prio;
+	return 0;
+}
+
 static int pohmelfs_cn_ctl(struct cn_msg *msg, int action)
 {
 	struct pohmelfs_config_group *g;
@@ -278,6 +326,9 @@ static int pohmelfs_cn_ctl(struct cn_msg *msg, int action)
 				g->num_entry--;
 				kfree(c);
 				goto out_unlock;
+			} else if (action == POHMELFS_FLAGS_MODIFY) {
+				err = pohmelfs_modify_config(sc, ctl);
+				goto out_unlock;
 			} else {
 				err = -EEXIST;
 				goto out_unlock;
@@ -296,6 +347,7 @@ static int pohmelfs_cn_ctl(struct cn_msg *msg, int action)
 	}
 	memcpy(&c->state.ctl, ctl, sizeof(struct pohmelfs_ctl));
 	g->num_entry++;
+
 	list_add_tail(&c->config_entry, &g->config_list);
 
 out_unlock:
@@ -401,10 +453,9 @@ static void pohmelfs_cn_callback(void *data)
 
 	switch (msg->flags) {
 		case POHMELFS_FLAGS_ADD:
-			err = pohmelfs_cn_ctl(msg, POHMELFS_FLAGS_ADD);
-			break;
 		case POHMELFS_FLAGS_DEL:
-			err = pohmelfs_cn_ctl(msg, POHMELFS_FLAGS_DEL);
+		case POHMELFS_FLAGS_MODIFY:
+			err = pohmelfs_cn_ctl(msg, msg->flags);
 			break;
 		case POHMELFS_FLAGS_SHOW:
 			err = pohmelfs_cn_disp(msg);

drivers/staging/pohmelfs/dir.c

@@ -328,7 +328,7 @@ static int pohmelfs_sync_remote_dir(struct pohmelfs_inode *pi)
 {
 	struct inode *inode = &pi->vfs_inode;
 	struct pohmelfs_sb *psb = POHMELFS_SB(inode->i_sb);
-	long ret = msecs_to_jiffies(25000);
+	long ret = psb->wait_on_page_timeout;
 	int err;
 
 	dprintk("%s: dir: %llu, state: %lx: remote_synced: %d.\n",
@@ -389,11 +389,11 @@ static int pohmelfs_readdir(struct file *file, void *dirent, filldir_t filldir)
 	dprintk("%s: parent: %llu, fpos: %llu, hash: %08lx.\n",
 			__func__, pi->ino, (u64)file->f_pos,
 			(unsigned long)file->private_data);
-
+#if 0
 	err = pohmelfs_data_lock(pi, 0, ~0, POHMELFS_READ_LOCK);
 	if (err)
 		return err;
-
+#endif
 	err = pohmelfs_sync_remote_dir(pi);
 	if (err)
 		return err;
@@ -513,10 +513,6 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 
 	need_lock = pohmelfs_need_lock(parent, lock_type);
 
-	err = pohmelfs_data_lock(parent, 0, ~0, lock_type);
-	if (err)
-		goto out;
-
 	str.hash = jhash(dentry->d_name.name, dentry->d_name.len, 0);
 
 	mutex_lock(&parent->offset_lock);
@@ -525,8 +521,8 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 		ino = n->ino;
 	mutex_unlock(&parent->offset_lock);
 
-	dprintk("%s: 1 ino: %lu, inode: %p, name: '%s', hash: %x, parent_state: %lx.\n",
-			__func__, ino, inode, str.name, str.hash, parent->state);
+	dprintk("%s: start ino: %lu, inode: %p, name: '%s', hash: %x, parent_state: %lx, need_lock: %d.\n",
+			__func__, ino, inode, str.name, str.hash, parent->state, need_lock);
 
 	if (ino) {
 		inode = ilookup(dir->i_sb, ino);
@@ -534,7 +530,7 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 			goto out;
 	}
 
-	dprintk("%s: dir: %p, dir_ino: %llu, name: '%s', len: %u, dir_state: %lx, ino: %lu.\n",
+	dprintk("%s: no inode dir: %p, dir_ino: %llu, name: '%s', len: %u, dir_state: %lx, ino: %lu.\n",
 			__func__, dir, parent->ino,
 			str.name, str.len, parent->state, ino);
 
@@ -543,6 +539,10 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 			goto out;
 	}
 
+	err = pohmelfs_data_lock(parent, 0, ~0, lock_type);
+	if (err)
+		goto out;
+
 	err = pohmelfs_lookup_single(parent, &str, ino);
 	if (err)
 		goto out;
@@ -557,10 +557,10 @@ struct dentry *pohmelfs_lookup(struct inode *dir, struct dentry *dentry, struct
 
 	if (ino) {
 		inode = ilookup(dir->i_sb, ino);
-		printk("%s: second lookup ino: %lu, inode: %p, name: '%s', hash: %x.\n",
+		dprintk("%s: second lookup ino: %lu, inode: %p, name: '%s', hash: %x.\n",
 				__func__, ino, inode, str.name, str.hash);
 		if (!inode) {
-			printk("%s: No inode for ino: %lu, name: '%s', hash: %x.\n",
+			dprintk("%s: No inode for ino: %lu, name: '%s', hash: %x.\n",
 				__func__, ino, str.name, str.hash);
 			//return NULL;
 			return ERR_PTR(-EACCES);

drivers/staging/pohmelfs/inode.c

@@ -1169,16 +1169,17 @@ err_out_put:
 static int pohmelfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 {
 	struct inode *inode = dentry->d_inode;
+#if 0
 	struct pohmelfs_inode *pi = POHMELFS_I(inode);
 	int err;
 
 	err = pohmelfs_data_lock(pi, 0, ~0, POHMELFS_READ_LOCK);
 	if (err)
 		return err;
-
 	dprintk("%s: ino: %llu, mode: %o, uid: %u, gid: %u, size: %llu.\n",
 			__func__, pi->ino, inode->i_mode, inode->i_uid,
 			inode->i_gid, inode->i_size);
+#endif
 
 	generic_fillattr(inode, stat);
 	return 0;
@@ -1342,14 +1343,6 @@ static void pohmelfs_put_super(struct super_block *sb)
 
 	kfree(psb);
 	sb->s_fs_info = NULL;
-
-	pohmelfs_ftrans_exit();
-}
-
-static int pohmelfs_remount(struct super_block *sb, int *flags, char *data)
-{
-	*flags |= MS_RDONLY;
-	return 0;
 }
 
 static int pohmelfs_statfs(struct dentry *dentry, struct kstatfs *buf)
@@ -1394,42 +1387,33 @@ static int pohmelfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 	return 0;
 }
 
-static const struct super_operations pohmelfs_sb_ops = {
-	.alloc_inode	= pohmelfs_alloc_inode,
-	.destroy_inode	= pohmelfs_destroy_inode,
-	.drop_inode	= pohmelfs_drop_inode,
-	.write_inode	= pohmelfs_write_inode,
-	.put_super	= pohmelfs_put_super,
-	.remount_fs	= pohmelfs_remount,
-	.statfs		= pohmelfs_statfs,
-	.show_options	= pohmelfs_show_options,
-};
-
 enum {
 	pohmelfs_opt_idx,
+	pohmelfs_opt_crypto_thread_num,
+	pohmelfs_opt_trans_max_pages,
+	pohmelfs_opt_crypto_fail_unsupported,
+
+	/* Remountable options */
 	pohmelfs_opt_trans_scan_timeout,
 	pohmelfs_opt_drop_scan_timeout,
 	pohmelfs_opt_wait_on_page_timeout,
 	pohmelfs_opt_trans_retries,
-	pohmelfs_opt_crypto_thread_num,
-	pohmelfs_opt_trans_max_pages,
-	pohmelfs_opt_crypto_fail_unsupported,
 	pohmelfs_opt_mcache_timeout,
 };
 
 static struct match_token pohmelfs_tokens[] = {
 	{pohmelfs_opt_idx, "idx=%u"},
+	{pohmelfs_opt_crypto_thread_num, "crypto_thread_num=%u"},
+	{pohmelfs_opt_trans_max_pages, "trans_max_pages=%u"},
+	{pohmelfs_opt_crypto_fail_unsupported, "crypto_fail_unsupported"},
 	{pohmelfs_opt_trans_scan_timeout, "trans_scan_timeout=%u"},
 	{pohmelfs_opt_drop_scan_timeout, "drop_scan_timeout=%u"},
 	{pohmelfs_opt_wait_on_page_timeout, "wait_on_page_timeout=%u"},
 	{pohmelfs_opt_trans_retries, "trans_retries=%u"},
-	{pohmelfs_opt_crypto_thread_num, "crypto_thread_num=%u"},
-	{pohmelfs_opt_trans_max_pages, "trans_max_pages=%u"},
-	{pohmelfs_opt_crypto_fail_unsupported, "crypto_fail_unsupported"},
 	{pohmelfs_opt_mcache_timeout, "mcache_timeout=%u"},
 };
 
-static int pohmelfs_parse_options(char *options, struct pohmelfs_sb *psb)
+static int pohmelfs_parse_options(char *options, struct pohmelfs_sb *psb, int remount)
 {
 	char *p;
 	substring_t args[MAX_OPT_ARGS];
@@ -1449,6 +1433,9 @@ static int pohmelfs_parse_options(char *options, struct pohmelfs_sb *psb)
 		if (err)
 			return err;
 
+		if (remount && token <= pohmelfs_opt_crypto_fail_unsupported)
+			continue;
+
 		switch (token) {
 			case pohmelfs_opt_idx:
 				psb->idx = option;
@@ -1485,6 +1472,25 @@ static int pohmelfs_parse_options(char *options, struct pohmelfs_sb *psb)
 	return 0;
 }
 
+static int pohmelfs_remount(struct super_block *sb, int *flags, char *data)
+{
+	int err;
+	struct pohmelfs_sb *psb = POHMELFS_SB(sb);
+	unsigned long old_sb_flags = sb->s_flags;
+
+	err = pohmelfs_parse_options(data, psb, 1);
+	if (err)
+		goto err_out_restore;
+
+	if (!(*flags & MS_RDONLY))
+		sb->s_flags &= ~MS_RDONLY;
+	return 0;
+
+err_out_restore:
+	sb->s_flags = old_sb_flags;
+	return err;
+}
+
 static void pohmelfs_flush_inode(struct pohmelfs_inode *pi, unsigned int count)
 {
 	struct inode *inode = &pi->vfs_inode;
@@ -1753,6 +1759,57 @@ err_out_exit:
 	return err;
 }
 
+static int pohmelfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+{
+	struct netfs_state *st;
+	struct pohmelfs_ctl *ctl;
+	struct pohmelfs_sb *psb = POHMELFS_SB(mnt->mnt_sb);
+	struct pohmelfs_config *c;
+
+	mutex_lock(&psb->state_lock);
+
+	seq_printf(m, "\nidx addr(:port) socket_type protocol active priority permissions\n");
+
+	list_for_each_entry(c, &psb->state_list, config_entry) {
+		st = &c->state;
+		ctl = &st->ctl;
+
+		seq_printf(m, "%u ", ctl->idx);
+		if (ctl->addr.sa_family == AF_INET) {
+			struct sockaddr_in *sin = (struct sockaddr_in *)&st->ctl.addr;
+			//seq_printf(m, "%pi4:%u", &sin->sin_addr.s_addr, ntohs(sin->sin_port));
+			seq_printf(m, "%u.%u.%u.%u:%u", NIPQUAD(sin->sin_addr.s_addr), ntohs(sin->sin_port));
+		} else if (ctl->addr.sa_family == AF_INET6) {
+			struct sockaddr_in6 *sin = (struct sockaddr_in6 *)&st->ctl.addr;
+			seq_printf(m, "%pi6:%u", &sin->sin6_addr, ntohs(sin->sin6_port));
+		} else {
+			unsigned int i;
+			for (i=0; i<ctl->addrlen; ++i)
+				seq_printf(m, "%02x.", ctl->addr.addr[i]);
+		}
+
+		seq_printf(m, " %u %u %d %u %x\n",
+				ctl->type, ctl->proto,
+				st->socket != NULL,
+				ctl->prio, ctl->perm);
+	}
+	mutex_unlock(&psb->state_lock);
+
+	return 0;
+}
+
+static const struct super_operations pohmelfs_sb_ops = {
+	.alloc_inode	= pohmelfs_alloc_inode,
+	.destroy_inode	= pohmelfs_destroy_inode,
+	.drop_inode	= pohmelfs_drop_inode,
+	.write_inode	= pohmelfs_write_inode,
+	.put_super	= pohmelfs_put_super,
+	.remount_fs	= pohmelfs_remount,
+	.statfs		= pohmelfs_statfs,
+	.show_options	= pohmelfs_show_options,
+	.show_stats	= pohmelfs_show_stats,
+};
+
 /*
  * Allocate private superblock and create root dir.
  */
@@ -1764,8 +1821,6 @@ static int pohmelfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct pohmelfs_inode *npi;
 	struct qstr str;
 
-	pohmelfs_ftrans_init();
-
 	psb = kzalloc(sizeof(struct pohmelfs_sb), GFP_KERNEL);
 	if (!psb)
 		goto err_out_exit;
@@ -1816,7 +1871,7 @@ static int pohmelfs_fill_super(struct super_block *sb, void *data, int silent)
 	mutex_init(&psb->state_lock);
 	INIT_LIST_HEAD(&psb->state_list);
 
-	err = pohmelfs_parse_options((char *) data, psb);
+	err = pohmelfs_parse_options((char *) data, psb, 0);
 	if (err)
 		goto err_out_free_sb;
 
@@ -1845,6 +1900,8 @@ static int pohmelfs_fill_super(struct super_block *sb, void *data, int silent)
 		err = PTR_ERR(npi);
 		goto err_out_crypto_exit;
 	}
+	set_bit(NETFS_INODE_REMOTE_SYNCED, &npi->state);
+	clear_bit(NETFS_INODE_OWNED, &npi->state);
 
 	root = &npi->vfs_inode;
 
@@ -1887,11 +1944,29 @@ static int pohmelfs_get_sb(struct file_system_type *fs_type,
 				mnt);
 }
 
+/*
+ * We need this to sync all inodes earlier, since when writeback
+ * is invoked from the umount/mntput path dcache is already shrunk,
+ * see generic_shutdown_super(), and no inodes can access the path.
+ */
+static void pohmelfs_kill_super(struct super_block *sb)
+{
+	struct writeback_control wbc = {
+		.sync_mode	= WB_SYNC_ALL,
+		.range_start	= 0,
+		.range_end	= LLONG_MAX,
+		.nr_to_write	= LONG_MAX,
+	};
+	generic_sync_sb_inodes(sb, &wbc);
+
+	kill_anon_super(sb);
+}
+
 static struct file_system_type pohmel_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "pohmel",
 	.get_sb		= pohmelfs_get_sb,
-	.kill_sb 	= kill_anon_super,
+	.kill_sb 	= pohmelfs_kill_super,
 };
 
 /*

drivers/staging/pohmelfs/lock.c

@@ -41,7 +41,8 @@ static int pohmelfs_send_lock_trans(struct pohmelfs_inode *pi,
 	path_len = err;
 
 	err = -ENOMEM;
-	t = netfs_trans_alloc(psb, path_len + sizeof(struct netfs_lock) + isize, 0, 0);
+	t = netfs_trans_alloc(psb, path_len + sizeof(struct netfs_lock) + isize,
+			NETFS_TRANS_SINGLE_DST, 0);
 	if (!t)
 		goto err_out_exit;
 

drivers/staging/pohmelfs/net.c

@@ -26,55 +26,6 @@
 
 #include "netfs.h"
 
-static int pohmelfs_ftrans_size = 10240;
-static u32 *pohmelfs_ftrans;
-
-int pohmelfs_ftrans_init(void)
-{
-	pohmelfs_ftrans = vmalloc(pohmelfs_ftrans_size * 4);
-	if (!pohmelfs_ftrans)
-		return -ENOMEM;
-
-	return 0;
-}
-
-void pohmelfs_ftrans_exit(void)
-{
-	vfree(pohmelfs_ftrans);
-}
-
-void pohmelfs_ftrans_clean(u64 id)
-{
-	if (pohmelfs_ftrans) {
-		u32 i = id & 0xffffffff;
-		int idx = i % pohmelfs_ftrans_size;
-
-		pohmelfs_ftrans[idx] = 0;
-	}
-}
-
-void pohmelfs_ftrans_update(u64 id)
-{
-	if (pohmelfs_ftrans) {
-		u32 i = id & 0xffffffff;
-		int idx = i % pohmelfs_ftrans_size;
-
-		pohmelfs_ftrans[idx] = i;
-	}
-}
-
-int pohmelfs_ftrans_check(u64 id)
-{
-	if (pohmelfs_ftrans) {
-		u32 i = id & 0xffffffff;
-		int idx = i % pohmelfs_ftrans_size;
-
-		return (pohmelfs_ftrans[idx] == i);
-	}
-
-	return -1;
-}
-
 /*
  * Async machinery lives here.
  * All commands being sent to server do _not_ require sync reply,
@@ -450,8 +401,24 @@ static int pohmelfs_readdir_response(struct netfs_state *st)
 			if (err != -EEXIST)
 				goto err_out_put;
 		} else {
+			struct dentry *dentry, *alias, *pd;
+
 			set_bit(NETFS_INODE_REMOTE_SYNCED, &npi->state);
 			clear_bit(NETFS_INODE_OWNED, &npi->state);
+
+			pd = d_find_alias(&parent->vfs_inode);
+			if (pd) {
+				str.hash = full_name_hash(str.name, str.len);
+				dentry = d_alloc(pd, &str);
+				if (dentry) {
+					alias = d_materialise_unique(dentry, &npi->vfs_inode);
+					if (alias)
+						dput(dentry);
+				}
+
+				dput(dentry);
+				dput(pd);
+			}
 		}
 	}
 out:
@@ -638,15 +605,12 @@ static int pohmelfs_transaction_response(struct netfs_state *st)
 	if (dst) {
 		netfs_trans_remove_nolock(dst, st);
 		t = dst->trans;
-
-		pohmelfs_ftrans_update(cmd->start);
 	}
 	mutex_unlock(&st->trans_lock);
 
 	if (!t) {
-		int check = pohmelfs_ftrans_check(cmd->start);
-		printk("%s: failed to find transaction: start: %llu: id: %llu, size: %u, ext: %u, double: %d.\n",
-				__func__, cmd->start, cmd->id, cmd->size, cmd->ext, check);
+		printk("%s: failed to find transaction: start: %llu: id: %llu, size: %u, ext: %u.\n",
+				__func__, cmd->start, cmd->id, cmd->size, cmd->ext);
 		err = -EINVAL;
 		goto out;
 	}

drivers/staging/pohmelfs/netfs.h

@@ -87,6 +87,7 @@ enum {
 	POHMELFS_FLAGS_DEL,     /* Network state control message for DEL */
 	POHMELFS_FLAGS_SHOW,    /* Network state control message for SHOW */
 	POHMELFS_FLAGS_CRYPTO,	/* Crypto data control message */
+	POHMELFS_FLAGS_MODIFY,	/* Network state modification message */
 };
 
 /*
@@ -116,16 +117,20 @@ struct pohmelfs_crypto
 	unsigned char		data[0];	/* Algorithm string, key and IV */
 };
 
+#define POHMELFS_IO_PERM_READ		(1<<0)
+#define POHMELFS_IO_PERM_WRITE		(1<<1)
+
 /*
  * Configuration command used to create table of different remote servers.
  */
 struct pohmelfs_ctl
 {
-	unsigned int		idx;		/* Config index */
-	unsigned int		type;		/* Socket type */
-	unsigned int		proto;		/* Socket protocol */
-	unsigned int		addrlen;	/* Size of the address */
-	unsigned short		unused;		/* Align structure by 4 bytes */
+	__u32			idx;		/* Config index */
+	__u32			type;		/* Socket type */
+	__u32			proto;		/* Socket protocol */
+	__u16			addrlen;	/* Size of the address */
+	__u16			perm;		/* IO permission */
+	__u16			prio;		/* IO priority */
 	struct saddr		addr;		/* Remote server address */
 };
 
@@ -921,12 +926,6 @@ static inline void pohmelfs_mcache_put(struct pohmelfs_sb *psb,
 		pohmelfs_mcache_free(psb, m);
 }
 
-int pohmelfs_ftrans_init(void);
-void pohmelfs_ftrans_exit(void);
-void pohmelfs_ftrans_update(u64 id);
-int pohmelfs_ftrans_check(u64 id);
-void pohmelfs_ftrans_clean(u64 id);
-
 #endif /* __KERNEL__*/
 
 #endif /* __NETFS_H */

drivers/staging/pohmelfs/trans.c

@@ -456,34 +456,25 @@ int netfs_trans_finish_send(struct netfs_trans *t, struct pohmelfs_sb *psb)
 		__func__, t, t->gen, t->iovec.iov_len, t->page_num, psb->active_state);
 #endif
 	mutex_lock(&psb->state_lock);
+	list_for_each_entry(c, &psb->state_list, config_entry) {
+		st = &c->state;
 
-	if ((t->flags & NETFS_TRANS_SINGLE_DST) && psb->active_state) {
-		st = &psb->active_state->state;
-
-		err = -EPIPE;
-		if (netfs_state_poll(st) & POLLOUT) {
-			err = netfs_trans_push_dst(t, st);
-			if (!err) {
-				err = netfs_trans_send(t, st);
-				if (err) {
-					netfs_trans_drop_last(t, st);
-				} else {
-					pohmelfs_switch_active(psb);
-					goto out;
-				}
-			}
+		if (t->flags & NETFS_TRANS_SINGLE_DST) {
+			if (!(st->ctl.perm & POHMELFS_IO_PERM_READ))
+				continue;
+		} else {
+			if (!(st->ctl.perm & POHMELFS_IO_PERM_WRITE))
+				continue;
 		}
-		pohmelfs_switch_active(psb);
-	}
 
-	list_for_each_entry(c, &psb->state_list, config_entry) {
-		st = &c->state;
+		if (psb->active_state && (psb->active_state->state.ctl.prio >= st->ctl.prio))
+			st = &psb->active_state->state;
 
 		err = netfs_trans_push(t, st);
 		if (!err && (t->flags & NETFS_TRANS_SINGLE_DST))
 			break;
 	}
-out:
+
 	mutex_unlock(&psb->state_lock);
 #if 0
 	dprintk("%s: fully sent t: %p, gen: %u, size: %u, page_num: %u, err: %d.\n",
@@ -501,8 +492,6 @@ int netfs_trans_finish(struct netfs_trans *t, struct pohmelfs_sb *psb)
 
 	t->gen = atomic_inc_return(&psb->trans_gen);
 
-	pohmelfs_ftrans_clean(t->gen);
-
 	cmd->size = t->iovec.iov_len - sizeof(struct netfs_cmd) +
 		t->attached_size + t->attached_pages * sizeof(struct netfs_cmd);
 	cmd->cmd = NETFS_TRANS;

drivers/staging/rt2860/rt_main_dev.c

@@ -722,6 +722,20 @@ err:
 	return (-1);
 } /* End of rt28xx_open */
 
+static const struct net_device_ops rt2860_netdev_ops = {
+	.ndo_open		= MainVirtualIF_open,
+	.ndo_stop		= MainVirtualIF_close,
+	.ndo_do_ioctl		= rt28xx_ioctl,
+	.ndo_get_stats		= RT28xx_get_ether_stats,
+	.ndo_validate_addr	= NULL,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef IKANOS_VX_1X0
+	.ndo_start_xmit		= IKANOS_DataFramesTx,
+#else
+	.ndo_start_xmit		= rt28xx_send_packets,
+#endif
+};
 
 /* Must not be called for mdev and apdev */
 static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER pAd)
@@ -733,11 +747,6 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 
 
 	//ether_setup(dev);
-	dev->hard_start_xmit = rt28xx_send_packets;
-
-#ifdef IKANOS_VX_1X0
-	dev->hard_start_xmit = IKANOS_DataFramesTx;
-#endif // IKANOS_VX_1X0 //
 
 #ifdef CONFIG_STA_SUPPORT
 #if WIRELESS_EXT >= 12
@@ -760,12 +769,8 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 #if WIRELESS_EXT < 21
 		dev->get_wireless_stats = rt28xx_get_wireless_stats;
 #endif
-	dev->get_stats = RT28xx_get_ether_stats;
-	dev->open = MainVirtualIF_open; //rt28xx_open;
-	dev->stop = MainVirtualIF_close; //rt28xx_close;
 	dev->priv_flags = INT_MAIN;
-	dev->do_ioctl = rt28xx_ioctl;
-	dev->validate_addr = NULL;
+	dev->netdev_ops = &rt2860_netdev_ops;
 	// find available device name
 	for (i = 0; i < 8; i++)
 	{

drivers/staging/rt2870/rt2870.h

@@ -96,6 +96,7 @@
 	{USB_DEVICE(0x0DF6,0x002B)}, /* Sitecom */		\
 	{USB_DEVICE(0x0DF6,0x002C)}, /* Sitecom */		\
 	{USB_DEVICE(0x0DF6,0x002D)}, /* Sitecom */		\
+	{USB_DEVICE(0x0DF6,0x0039)}, /* Sitecom */		\
 	{USB_DEVICE(0x14B2,0x3C06)}, /* Conceptronic */		\
 	{USB_DEVICE(0x14B2,0x3C28)}, /* Conceptronic */		\
 	{USB_DEVICE(0x2019,0xED06)}, /* Planex Communications, Inc. */		\

drivers/staging/rt2870/rt_main_dev.c

@@ -855,6 +855,20 @@ err:
 	return (-1);
 } /* End of rt28xx_open */
 
+static const struct net_device_ops rt2870_netdev_ops = {
+	.ndo_open		= MainVirtualIF_open,
+	.ndo_stop		= MainVirtualIF_close,
+	.ndo_do_ioctl		= rt28xx_ioctl,
+	.ndo_get_stats		= RT28xx_get_ether_stats,
+	.ndo_validate_addr	= NULL,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef IKANOS_VX_1X0
+	.ndo_start_xmit		= IKANOS_DataFramesTx,
+#else
+	.ndo_start_xmit		= rt28xx_send_packets,
+#endif
+};
 
 /* Must not be called for mdev and apdev */
 static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER pAd)
@@ -866,12 +880,6 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 
 
 	//ether_setup(dev);
-	dev->hard_start_xmit = rt28xx_send_packets;
-
-#ifdef IKANOS_VX_1X0
-	dev->hard_start_xmit = IKANOS_DataFramesTx;
-#endif // IKANOS_VX_1X0 //
-
 //	dev->set_multicast_list = ieee80211_set_multicast_list;
 //	dev->change_mtu = ieee80211_change_mtu;
 #ifdef CONFIG_STA_SUPPORT
@@ -895,16 +903,10 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 #if WIRELESS_EXT < 21
 		dev->get_wireless_stats = rt28xx_get_wireless_stats;
 #endif
-	dev->get_stats = RT28xx_get_ether_stats;
-	dev->open = MainVirtualIF_open; //rt28xx_open;
-	dev->stop = MainVirtualIF_close; //rt28xx_close;
 //	dev->uninit = ieee80211_if_reinit;
 //	dev->destructor = ieee80211_if_free;
 	dev->priv_flags = INT_MAIN;
-	dev->do_ioctl = rt28xx_ioctl;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-    dev->validate_addr = NULL;
-#endif
+	dev->netdev_ops = &rt2870_netdev_ops;
 	// find available device name
 	for (i = 0; i < 8; i++)
 	{

drivers/staging/rt3070/rt_main_dev.c

@@ -436,7 +436,6 @@ static int rt28xx_init(IN struct net_device *net_dev)
 //    OID_SET_HT_PHYMODE		SetHT;
 //	WPDMA_GLO_CFG_STRUC     GloCfg;
 	UINT32 		MacCsr0 = 0;
-	UINT32		MacValue = 0;
 
 #ifdef RT2870
 #ifdef INF_AMAZON_SE
@@ -849,6 +848,20 @@ err:
 	return (-1);
 } /* End of rt28xx_open */
 
+static const struct net_device_ops rt3070_netdev_ops = {
+	.ndo_open		= MainVirtualIF_open,
+	.ndo_stop		= MainVirtualIF_close,
+	.ndo_do_ioctl		= rt28xx_ioctl,
+	.ndo_get_stats		= RT28xx_get_ether_stats,
+	.ndo_validate_addr	= NULL,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+#ifdef IKANOS_VX_1X0
+	.ndo_start_xmit		= IKANOS_DataFramesTx,
+#else
+	.ndo_start_xmit		= rt28xx_send_packets,
+#endif
+};
 
 /* Must not be called for mdev and apdev */
 static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER pAd)
@@ -860,12 +873,6 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 
 
 	//ether_setup(dev);
-	dev->hard_start_xmit = rt28xx_send_packets;
-
-#ifdef IKANOS_VX_1X0
-	dev->hard_start_xmit = IKANOS_DataFramesTx;
-#endif // IKANOS_VX_1X0 //
-
 //	dev->set_multicast_list = ieee80211_set_multicast_list;
 //	dev->change_mtu = ieee80211_change_mtu;
 #ifdef CONFIG_STA_SUPPORT
@@ -889,16 +896,10 @@ static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER p
 #if WIRELESS_EXT < 21
 		dev->get_wireless_stats = rt28xx_get_wireless_stats;
 #endif
-	dev->get_stats = RT28xx_get_ether_stats;
-	dev->open = MainVirtualIF_open; //rt28xx_open;
-	dev->stop = MainVirtualIF_close; //rt28xx_close;
 //	dev->uninit = ieee80211_if_reinit;
 //	dev->destructor = ieee80211_if_free;
 	dev->priv_flags = INT_MAIN;
-	dev->do_ioctl = rt28xx_ioctl;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-    dev->validate_addr = NULL;
-#endif
+	dev->netdev_ops = &rt3070_netdev_ops;
 	// find available device name
 	for (i = 0; i < 8; i++)
 	{

drivers/staging/slicoss/README

@@ -10,7 +10,36 @@ TODO:
 	- move firmware loading to request_firmware()
 	- remove direct memory access of structures
 	- any remaining sparse and checkpatch.pl warnings
-	- any netdev recommended changes
+
+	- use net_device_ops
+	- use dev->stats rather than adapter->stats
+	- don't cast netdev_priv it is already void
+	- use compare_ether_addr
+	- GET RID OF MACROS
+	- work on all architectures
+	   - without CONFIG_X86_64 confusion
+	   - do 64 bit correctly
+	   - don't depend on order of union
+	- get rid of ASSERT(), use BUG() instead but only where necessary
+	  looks like most aren't really useful
+	- no new SIOCDEVPRIVATE ioctl allowed
+	- don't use module_param for configuring interrupt mitigation
+	  use ethtool instead
+	- reorder code to elminate use of forward declarations
+	- don't keep private linked list of drivers.
+	- remove all the gratiutous debug infrastructure
+	- use PCI_DEVICE()
+	- do ethtool correctly using ethtool_ops
+	- NAPI?
+	- wasted overhead of extra stats
+	- state variables for things that are
+	  easily availble and shouldn't be kept in card structure, cardnum, ...
+	  slotnumber, events, ...
+	- get rid of slic_spinlock wrapper
+	- volatile == bad design => bad code
+	- locking too fine grained, not designed just throw more locks
+	  at problem
+
 
 Please send patches to:
         Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/slicoss/slicoss.c

@@ -345,6 +345,19 @@ static void slic_init_adapter(struct net_device *netdev,
 	return;
 }
 
+static const struct net_device_ops slic_netdev_ops = {
+	.ndo_open		= slic_entry_open,
+	.ndo_stop		= slic_entry_halt,
+	.ndo_start_xmit		= slic_xmit_start,
+	.ndo_do_ioctl		= slic_ioctl,
+	.ndo_set_mac_address	= slic_mac_set_address,
+	.ndo_get_stats		= slic_get_stats,
+	.ndo_set_multicast_list	= slic_mcast_set_list,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= eth_mac_addr,
+	.ndo_change_mtu		= eth_change_mtu,
+};
+
 static int __devinit slic_entry_probe(struct pci_dev *pcidev,
 			       const struct pci_device_id *pci_tbl_entry)
 {
@@ -442,13 +455,7 @@ static int __devinit slic_entry_probe(struct pci_dev *pcidev,
 
 	netdev->base_addr = (unsigned long)adapter->memorybase;
 	netdev->irq = adapter->irq;
-	netdev->open = slic_entry_open;
-	netdev->stop = slic_entry_halt;
-	netdev->hard_start_xmit = slic_xmit_start;
-	netdev->do_ioctl = slic_ioctl;
-	netdev->set_mac_address = slic_mac_set_address;
-	netdev->get_stats = slic_get_stats;
-	netdev->set_multicast_list = slic_mcast_set_list;
+	netdev->netdev_ops = &slic_netdev_ops;
 
 	slic_debug_adapter_create(adapter);
 
@@ -1260,7 +1267,7 @@ static int slic_mcast_add_list(struct adapter *adapter, char *address)
 	}
 
 	/* Doesn't already exist.  Allocate a structure to hold it */
-	mcaddr = kmalloc(sizeof(struct mcast_address), GFP_KERNEL);
+	mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC);
 	if (mcaddr == NULL)
 		return 1;
 
@@ -2284,7 +2291,7 @@ static u32 slic_card_locate(struct adapter *adapter)
 	}
 	if (!physcard) {
 		/* no structure allocated for this physical card yet */
-		physcard = kzalloc(sizeof(struct physcard), GFP_KERNEL);
+		physcard = kzalloc(sizeof(struct physcard), GFP_ATOMIC);
 		ASSERT(physcard);
 
 		physcard->next = slic_global.phys_card;

drivers/staging/stlc45xx/Kconfig

@@ -1,6 +1,6 @@
 config STLC45XX
 	tristate "stlc4550/4560 support"
-	depends on MAC80211 && WLAN_80211 && SPI_MASTER
+	depends on MAC80211 && WLAN_80211 && SPI_MASTER && GENERIC_HARDIRQS
 	---help---
 	  This is a driver for stlc4550 and stlc4560 chipsets.
 

drivers/staging/sxg/sxg.c

@@ -322,6 +322,8 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
 	int ret,i;
 
 	if (!adapter->intrregistered) {
+		spin_unlock_irqrestore(&sxg_global.driver_lock,
+					sxg_global.flags);
 		for (i=0; i<adapter->nr_msix_entries; i++) {
 			ret = request_irq (adapter->msi_entries[i].vector,
 					sxg_isr,
@@ -329,6 +331,8 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
 					adapter->netdev->name,
 					adapter->netdev);
 			if (ret) {
+				spin_lock_irqsave(&sxg_global.driver_lock,
+						 sxg_global.flags);
 				DBG_ERROR("sxg: MSI-X request_irq (%s) "
 					"FAILED [%x]\n", adapter->netdev->name,
 					 ret);
@@ -336,6 +340,7 @@ int sxg_add_msi_isr(struct adapter_t *adapter)
 			}
 		}
 	}
+	spin_lock_irqsave(&sxg_global.driver_lock, sxg_global.flags);
 	adapter->msi_enabled = TRUE;
 	adapter->intrregistered = 1;
 	adapter->IntRegistered = TRUE;
@@ -896,6 +901,22 @@ static inline int sxg_read_config(struct adapter_t *adapter)
 	return status;
 }
 
+static const struct net_device_ops sxg_netdev_ops = {
+	.ndo_open		= sxg_entry_open,
+	.ndo_stop		= sxg_entry_halt,
+	.ndo_start_xmit		= sxg_send_packets,
+	.ndo_do_ioctl		= sxg_ioctl,
+	.ndo_change_mtu		= sxg_change_mtu,
+	.ndo_get_stats		= sxg_get_stats,
+	.ndo_set_multicast_list	= sxg_mcast_set_list,
+	.ndo_validate_addr	= eth_validate_addr,
+#if XXXTODO
+	.ndo_set_mac_address	= sxg_mac_set_address,
+#else
+	.ndo_set_mac_address	= eth_mac_addr,
+#endif
+};
+
 static int sxg_entry_probe(struct pci_dev *pcidev,
 			   const struct pci_device_id *pci_tbl_entry)
 {
@@ -1095,16 +1116,7 @@ static int sxg_entry_probe(struct pci_dev *pcidev,
 
 	netdev->base_addr = (unsigned long)adapter->base_addr;
 	netdev->irq = adapter->irq;
-	netdev->open = sxg_entry_open;
-	netdev->stop = sxg_entry_halt;
-	netdev->hard_start_xmit = sxg_send_packets;
-	netdev->do_ioctl = sxg_ioctl;
-	netdev->change_mtu = sxg_change_mtu;
-#if XXXTODO
-	netdev->set_mac_address = sxg_mac_set_address;
-#endif
-	netdev->get_stats = sxg_get_stats;
-	netdev->set_multicast_list = sxg_mcast_set_list;
+	netdev->netdev_ops = &sxg_netdev_ops;
 	SET_ETHTOOL_OPS(netdev, &sxg_nic_ethtool_ops);
  	netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
 	err = sxg_set_interrupt_capability(adapter);
@@ -2247,6 +2259,8 @@ static int sxg_entry_open(struct net_device *dev)
 	DBG_ERROR("sxg: %s EXIT\n", __func__);
 
 	spin_unlock_irqrestore(&sxg_global.driver_lock, sxg_global.flags);
+	mod_timer(&adapter->watchdog_timer, jiffies);
+
 	return STATUS_SUCCESS;
 }
 
@@ -2568,6 +2582,7 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
 	u64 phys_addr;
 	unsigned long flags;
 	unsigned long queue_id=0;
+	int offload_cksum = 0;
 
 	SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbSgl",
 		  pSgl, SxgSgl, 0, 0);
@@ -2606,7 +2621,11 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
                 struct iphdr *ip;
 
                 ip = ip_hdr(skb);
-		if ((ip->protocol == IPPROTO_TCP)&&(DataLength >= sizeof(
+		if (ip->protocol == IPPROTO_TCP)
+			offload_cksum = 1;
+		if (!offload_cksum || !tcp_hdr(skb))
+			queue_id = 0;
+		else if (offload_cksum && (DataLength >= sizeof(
 							struct tcphdr))){
 			queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ?
 					(ntohs (tcp_hdr(skb)->source) &
@@ -2615,8 +2634,11 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
 						SXG_LARGE_SEND_QUEUE_MASK));
 		}
 	} else if (skb->protocol == htons(ETH_P_IPV6)) {
-		if ((ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) && (DataLength >=
-						 sizeof(struct tcphdr)) ) {
+		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+			offload_cksum = 1;
+		if (!offload_cksum || !tcp_hdr(skb))
+			queue_id = 0;
+		else if (offload_cksum && (DataLength>=sizeof(struct tcphdr))){
 			queue_id = ((ntohs(tcp_hdr(skb)->dest) == ISCSI_PORT) ?
 					(ntohs (tcp_hdr(skb)->source) &
 					SXG_LARGE_SEND_QUEUE_MASK):
@@ -2645,23 +2667,38 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
 	}
 	SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "DumbCmd",
 		  XmtCmd, XmtRingInfo->Head, XmtRingInfo->Tail, 0);
-	/* Update stats */
-	adapter->stats.tx_packets++;
-	adapter->stats.tx_bytes += DataLength;
-#if XXXTODO			/* Stats stuff */
-	if (SXG_MULTICAST_PACKET(EtherHdr)) {
-		if (SXG_BROADCAST_PACKET(EtherHdr)) {
-			adapter->Stats.DumbXmtBcastPkts++;
-			adapter->Stats.DumbXmtBcastBytes += DataLength;
+	memset(XmtCmd, '\0', sizeof(*XmtCmd));
+	XmtCmd->SgEntries = 1;
+	XmtCmd->Flags = 0;
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		/*
+		 * We need to set the Checkum in IP  header to 0. This is
+		 * required by hardware.
+		 */
+		if (offload_cksum) {
+			ip_hdr(skb)->check = 0x0;
+			XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_IP;
+			XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_TCP;
+			/*
+			 * Dont know if length will require a change in
+			 * case of VLAN
+			 */
+			XmtCmd->CsumFlags.MacLen = ETH_HLEN;
+			XmtCmd->CsumFlags.IpHl = skb_network_header_len(skb) >>
+							SXG_NW_HDR_LEN_SHIFT;
 		} else {
-			adapter->Stats.DumbXmtMcastPkts++;
-			adapter->Stats.DumbXmtMcastBytes += DataLength;
+			if (skb_checksum_help(skb)){
+				printk(KERN_EMERG "Dropped UDP packet for"
+					" incorrect checksum calculation\n");
+				if (XmtCmd)
+					SXG_ABORT_CMD(XmtRingInfo);
+				spin_unlock_irqrestore(&adapter->XmtZeroLock,
+							 flags);
+				return STATUS_SUCCESS;
+			}
 		}
-	} else {
-		adapter->Stats.DumbXmtUcastPkts++;
-		adapter->Stats.DumbXmtUcastBytes += DataLength;
 	}
-#endif
+
 	/*
 	 * Fill in the command
 	 * Copy out the first SGE to the command and adjust for offset
@@ -2679,31 +2716,17 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
 		(SXG_INVALID_SGL(phys_addr,skb->data_len)))
 	{
 		spin_unlock_irqrestore(&adapter->XmtZeroLock, flags);
+		if (XmtCmd)
+			SXG_ABORT_CMD(XmtRingInfo);
 		/* Silently drop this packet */
 		printk(KERN_EMERG"Dropped a packet for 64k boundary problem\n");
 		return STATUS_SUCCESS;
 	}
-	memset(XmtCmd, '\0', sizeof(*XmtCmd));
 	XmtCmd->Buffer.FirstSgeAddress = phys_addr;
 	XmtCmd->Buffer.FirstSgeLength = DataLength;
 	XmtCmd->Buffer.SgeOffset = 0;
 	XmtCmd->Buffer.TotalLength = DataLength;
-	XmtCmd->SgEntries = 1;
-	XmtCmd->Flags = 0;
 
-	if (skb->ip_summed == CHECKSUM_PARTIAL) {
-		/*
-		 * We need to set the Checkum in IP  header to 0. This is
-		 * required by hardware.
-		 */
-		ip_hdr(skb)->check = 0x0;
-		XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_IP;
-		XmtCmd->CsumFlags.Flags |= SXG_SLOWCMD_CSUM_TCP;
-		/* Dont know if length will require a change in case of VLAN */
-		XmtCmd->CsumFlags.MacLen = ETH_HLEN;
-		XmtCmd->CsumFlags.IpHl = skb_network_header_len(skb) >>
-							SXG_NW_HDR_LEN_SHIFT;
-	}
 	/*
 	 * Advance transmit cmd descripter by 1.
 	 * NOTE - See comments in SxgTcpOutput where we write
@@ -2715,6 +2738,24 @@ static int sxg_dumb_sgl(struct sxg_x64_sgl *pSgl,
 	ASSERT((queue_id & ~SXG_LARGE_SEND_QUEUE_MASK) == 0);
 	WRITE_REG(adapter->UcodeRegs[0].XmtCmd, ((queue_id << 16) | 1), TRUE);
 	adapter->Stats.XmtQLen++;	/* Stats within lock */
+	/* Update stats */
+	adapter->stats.tx_packets++;
+	adapter->stats.tx_bytes += DataLength;
+#if XXXTODO			/* Stats stuff */
+	if (SXG_MULTICAST_PACKET(EtherHdr)) {
+		if (SXG_BROADCAST_PACKET(EtherHdr)) {
+			adapter->Stats.DumbXmtBcastPkts++;
+			adapter->Stats.DumbXmtBcastBytes += DataLength;
+		} else {
+			adapter->Stats.DumbXmtMcastPkts++;
+			adapter->Stats.DumbXmtMcastBytes += DataLength;
+		}
+	} else {
+		adapter->Stats.DumbXmtUcastPkts++;
+		adapter->Stats.DumbXmtUcastBytes += DataLength;
+	}
+#endif
+
 	spin_unlock_irqrestore(&adapter->XmtZeroLock, flags);
 	SXG_TRACE(TRACE_SXG, SxgTraceBuffer, TRACE_NOISY, "XDumSgl2",
 		  XmtCmd, pSgl, SxgSgl, 0);

drivers/staging/uc2322/aten2011.c

@@ -603,10 +603,9 @@ static void ATEN2011_bulk_out_data_callback(struct urb *urb)
 
 	tty = tty_port_tty_get(&ATEN2011_port->port->port);
 
-	if (tty && ATEN2011_port->open) {
+	if (tty && ATEN2011_port->open)
 		/* tell the tty driver that something has changed */
-		wake_up_interruptible(&tty->write_wait);
-	}
+		tty_wakeup(tty);
 
 	/* schedule_work(&ATEN2011_port->port->work); */
 	tty_kref_put(tty);
@@ -825,12 +824,6 @@ static int ATEN2011_open(struct tty_struct *tty, struct usb_serial_port *port,
 	status = 0;
 	status = set_reg_sync(port, ATEN2011_port->ControlRegOffset, Data);
 
-	/* force low_latency on so that our tty_push actually forces *
-	 * the data through,otherwise it is scheduled, and with      *
-	 * high data rates (like with OHCI) data can get lost.       */
-
-	if (tty)
-		tty->low_latency = 1;
 	/*
 	 * Check to see if we've set up our endpoint info yet
 	 * (can't set it up in ATEN2011_startup as the structures
@@ -1473,22 +1466,7 @@ static void ATEN2011_set_termios(struct tty_struct *tty,
 
 	cflag = tty->termios->c_cflag;
 
-	if (!cflag) {
-		dbg("%s %s", __func__, "cflag is NULL");
-		return;
-	}
-
-	/* check that they really want us to change something */
-	if (old_termios) {
-		if ((cflag == old_termios->c_cflag) &&
-		    (RELEVANT_IFLAG(tty->termios->c_iflag) ==
-		     RELEVANT_IFLAG(old_termios->c_iflag))) {
-			dbg("%s", "Nothing to change");
-			return;
-		}
-	}
-
-	dbg("%s - clfag %08x iflag %08x", __func__,
+	dbg("%s - cflag %08x iflag %08x", __func__,
 	    tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag));
 
 	if (old_termios) {

drivers/staging/wlan-ng/p80211netdev.c

@@ -711,6 +711,20 @@ static int wlan_change_mtu(netdevice_t *dev, int new_mtu)
 	return 0;
 }
 
+static const struct net_device_ops p80211_netdev_ops = {
+	.ndo_init		= p80211knetdev_init,
+	.ndo_open		= p80211knetdev_open,
+	.ndo_stop		= p80211knetdev_stop,
+	.ndo_get_stats		= p80211knetdev_get_stats,
+	.ndo_start_xmit		= p80211knetdev_hard_start_xmit,
+	.ndo_set_multicast_list	= p80211knetdev_set_multicast_list,
+	.ndo_do_ioctl		= p80211knetdev_do_ioctl,
+	.ndo_set_mac_address	= p80211knetdev_set_mac_address,
+	.ndo_tx_timeout		= p80211knetdev_tx_timeout,
+	.ndo_change_mtu		= wlan_change_mtu,
+	.ndo_validate_addr	= eth_validate_addr,
+};
+
 /*----------------------------------------------------------------
 * wlan_setup
 *
@@ -756,11 +770,7 @@ int wlan_setup(wlandevice_t *wlandev)
 	} else {
 		wlandev->netdev = dev;
 		dev->ml_priv = wlandev;
-		dev->hard_start_xmit = p80211knetdev_hard_start_xmit;
-		dev->get_stats = p80211knetdev_get_stats;
-		dev->init = p80211knetdev_init;
-		dev->open = p80211knetdev_open;
-		dev->stop = p80211knetdev_stop;
+		dev->netdev_ops = &p80211_netdev_ops;
 
 		mutex_init(&wlandev->ioctl_lock);
 		/* block ioctls until fully initialised. Don't forget to call