summaryrefslogtreecommitdiff
path: root/tools/usb/usbip/libsrc/list.h
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-09-21 16:40:04 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-09-21 16:40:04 -0300
commit3cf0c6bd68915aee3b5827b960e485de201e42c1 (patch)
tree51a4301194ce3e6d13cd97949f922936b0330af6 /tools/usb/usbip/libsrc/list.h
parentf5281fc81e9a0a3e80b78720c5ae2ed06da3bfae (diff)
parentc1f03b486429633597bccbee413fb621b53603a8 (diff)
Merge remote-tracking branch 'linus/master' into patchwork
There are some patches that depends on media-v3.16-rc6. So, merge back from upstream before applying them. * linus/master: (1123 commits) drm/nouveau: ltc/gf100-: fix cbc issues on certain boards drm/bochs: add missing drm_connector_register call drm/cirrus: add missing drm_connector_register call staging: vt6655: buffer overflow in ioctl USB: storage: Add quirks for Entrega/Xircom USB to SCSI converters USB: storage: Add quirk for Ariston Technologies iConnect USB to SCSI adapter USB: storage: Add quirk for Adaptec USBConnect 2000 USB-to-SCSI Adapter USB: EHCI: unlink QHs even after the controller has stopped [SCSI] fix for bidi use after free [SCSI] fix regression that accidentally disabled block-based tcq [SCSI] libiscsi: fix potential buffer overrun in __iscsi_conn_send_pdu drm/radeon: Fix typo 'addr' -> 'entry' in rs400_gart_set_page drm/nouveau/runpm: fix module unload drm/radeon/px: fix module unload vgaswitcheroo: add vga_switcheroo_fini_domain_pm_ops drm/radeon: don't reset dma on r6xx-evergreen init drm/radeon: don't reset sdma on CIK init drm/radeon: don't reset dma on NI/SI init drm/radeon/dpm: fix resume on mullins drm/radeon: Disable HDP flush before every CS again for < r600 ...
Diffstat (limited to 'tools/usb/usbip/libsrc/list.h')
-rw-r--r--tools/usb/usbip/libsrc/list.h136
1 files changed, 136 insertions, 0 deletions
diff --git a/tools/usb/usbip/libsrc/list.h b/tools/usb/usbip/libsrc/list.h
new file mode 100644
index 000000000000..8d0c936e184f
--- /dev/null
+++ b/tools/usb/usbip/libsrc/list.h
@@ -0,0 +1,136 @@
+#ifndef _LIST_H
+#define _LIST_H
+
+/* Stripped down implementation of linked list taken
+ * from the Linux Kernel.
+ */
+
+/*
+ * Simple doubly linked list implementation.
+ *
+ * Some of the internal functions ("__xxx") are useful when
+ * manipulating whole lists rather than single entries, as
+ * sometimes we already know the next/prev entries and we can
+ * generate better code by using them directly rather than
+ * using the generic single-entry routines.
+ */
+
+struct list_head {
+ struct list_head *next, *prev;
+};
+
+#define LIST_HEAD_INIT(name) { &(name), &(name) }
+
+#define LIST_HEAD(name) \
+ struct list_head name = LIST_HEAD_INIT(name)
+
+static inline void INIT_LIST_HEAD(struct list_head *list)
+{
+ list->next = list;
+ list->prev = list;
+}
+
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_add(struct list_head *new,
+ struct list_head *prev,
+ struct list_head *next)
+{
+ next->prev = new;
+ new->next = next;
+ new->prev = prev;
+ prev->next = new;
+}
+
+/**
+ * list_add - add a new entry
+ * @new: new entry to be added
+ * @head: list head to add it after
+ *
+ * Insert a new entry after the specified head.
+ * This is good for implementing stacks.
+ */
+static inline void list_add(struct list_head *new, struct list_head *head)
+{
+ __list_add(new, head, head->next);
+}
+
+/*
+ * Delete a list entry by making the prev/next entries
+ * point to each other.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_del(struct list_head * prev, struct list_head * next)
+{
+ next->prev = prev;
+ prev->next = next;
+}
+
+#define POISON_POINTER_DELTA 0
+#define LIST_POISON1 ((void *) 0x00100100 + POISON_POINTER_DELTA)
+#define LIST_POISON2 ((void *) 0x00200200 + POISON_POINTER_DELTA)
+
+/**
+ * list_del - deletes entry from list.
+ * @entry: the element to delete from the list.
+ * Note: list_empty() on entry does not return true after this, the entry is
+ * in an undefined state.
+ */
+static inline void __list_del_entry(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+}
+
+static inline void list_del(struct list_head *entry)
+{
+ __list_del(entry->prev, entry->next);
+ entry->next = LIST_POISON1;
+ entry->prev = LIST_POISON2;
+}
+
+/**
+ * list_entry - get the struct for this entry
+ * @ptr: the &struct list_head pointer.
+ * @type: the type of the struct this is embedded in.
+ * @member: the name of the list_struct within the struct.
+ */
+#define list_entry(ptr, type, member) \
+ container_of(ptr, type, member)
+/**
+ * list_for_each - iterate over a list
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @head: the head for your list.
+ */
+#define list_for_each(pos, head) \
+ for (pos = (head)->next; pos != (head); pos = pos->next)
+
+/**
+ * list_for_each_safe - iterate over a list safe against removal of list entry
+ * @pos: the &struct list_head to use as a loop cursor.
+ * @n: another &struct list_head to use as temporary storage
+ * @head: the head for your list.
+ */
+#define list_for_each_safe(pos, n, head) \
+ for (pos = (head)->next, n = pos->next; pos != (head); \
+ pos = n, n = pos->next)
+
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr: the pointer to the member.
+ * @type: the type of the container struct this is embedded in.
+ * @member: the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({ \
+ const typeof( ((type *)0)->member ) *__mptr = (ptr); \
+ (type *)( (char *)__mptr - offsetof(type,member) );})
+
+#endif