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authorDavid S. Miller <davem@davemloft.net>2010-04-21 01:14:25 -0700
committerDavid S. Miller <davem@davemloft.net>2010-04-21 01:14:25 -0700
commit87eb367003887cdc81a5d183efea227b5b488961 (patch)
tree40f617e25a9364d573e3cd2189c9e7fa56c8a0fe /include
parentccb7c7732e2ceb4e81a7806faf1670be9681ccd2 (diff)
parent05d17608a69b3ae653ea5c9857283bef3439c733 (diff)
downloadop-kernel-dev-87eb367003887cdc81a5d183efea227b5b488961.zip
op-kernel-dev-87eb367003887cdc81a5d183efea227b5b488961.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/wireless/iwlwifi/iwl-6000.c net/core/dev.c
Diffstat (limited to 'include')
-rw-r--r--include/drm/drm_pciids.h1
-rw-r--r--include/linux/firewire-cdev.h78
-rw-r--r--include/linux/firewire-constants.h29
-rw-r--r--include/linux/input/matrix_keypad.h2
-rw-r--r--include/linux/nfs_fs_sb.h1
-rw-r--r--include/linux/rcupdate.h65
6 files changed, 142 insertions, 34 deletions
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 04a6ebc..2d428b0 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -6,6 +6,7 @@
{0x1002, 0x3150, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
{0x1002, 0x3152, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x3154, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x3155, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x3E50, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
{0x1002, 0x3E54, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_NEW_MEMMAP}, \
{0x1002, 0x4136, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS100|RADEON_IS_IGP}, \
diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h
index 40b1101..81f3b14 100644
--- a/include/linux/firewire-cdev.h
+++ b/include/linux/firewire-cdev.h
@@ -1,21 +1,26 @@
/*
* Char device interface.
*
- * Copyright (C) 2005-2006 Kristian Hoegsberg <krh@bitplanet.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Copyright (C) 2005-2007 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*/
#ifndef _LINUX_FIREWIRE_CDEV_H
@@ -438,7 +443,7 @@ struct fw_cdev_remove_descriptor {
* @type: %FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE
* @header_size: Header size to strip for receive contexts
* @channel: Channel to bind to
- * @speed: Speed to transmit at
+ * @speed: Speed for transmit contexts
* @closure: To be returned in &fw_cdev_event_iso_interrupt
* @handle: Handle to context, written back by kernel
*
@@ -451,6 +456,9 @@ struct fw_cdev_remove_descriptor {
* If a context was successfully created, the kernel writes back a handle to the
* context, which must be passed in for subsequent operations on that context.
*
+ * For receive contexts, @header_size must be at least 4 and must be a multiple
+ * of 4.
+ *
* Note that the effect of a @header_size > 4 depends on
* &fw_cdev_get_info.version, as documented at &fw_cdev_event_iso_interrupt.
*/
@@ -481,10 +489,34 @@ struct fw_cdev_create_iso_context {
*
* &struct fw_cdev_iso_packet is used to describe isochronous packet queues.
*
- * Use the FW_CDEV_ISO_ macros to fill in @control. The sy and tag fields are
- * specified by IEEE 1394a and IEC 61883.
- *
- * FIXME - finish this documentation
+ * Use the FW_CDEV_ISO_ macros to fill in @control.
+ *
+ * For transmit packets, the header length must be a multiple of 4 and specifies
+ * the numbers of bytes in @header that will be prepended to the packet's
+ * payload; these bytes are copied into the kernel and will not be accessed
+ * after the ioctl has returned. The sy and tag fields are copied to the iso
+ * packet header (these fields are specified by IEEE 1394a and IEC 61883-1).
+ * The skip flag specifies that no packet is to be sent in a frame; when using
+ * this, all other fields except the interrupt flag must be zero.
+ *
+ * For receive packets, the header length must be a multiple of the context's
+ * header size; if the header length is larger than the context's header size,
+ * multiple packets are queued for this entry. The sy and tag fields are
+ * ignored. If the sync flag is set, the context drops all packets until
+ * a packet with a matching sy field is received (the sync value to wait for is
+ * specified in the &fw_cdev_start_iso structure). The payload length defines
+ * how many payload bytes can be received for one packet (in addition to payload
+ * quadlets that have been defined as headers and are stripped and returned in
+ * the &fw_cdev_event_iso_interrupt structure). If more bytes are received, the
+ * additional bytes are dropped. If less bytes are received, the remaining
+ * bytes in this part of the payload buffer will not be written to, not even by
+ * the next packet, i.e., packets received in consecutive frames will not
+ * necessarily be consecutive in memory. If an entry has queued multiple
+ * packets, the payload length is divided equally among them.
+ *
+ * When a packet with the interrupt flag set has been completed, the
+ * &fw_cdev_event_iso_interrupt event will be sent. An entry that has queued
+ * multiple receive packets is completed when its last packet is completed.
*/
struct fw_cdev_iso_packet {
__u32 control;
@@ -501,7 +533,7 @@ struct fw_cdev_iso_packet {
* Queue a number of isochronous packets for reception or transmission.
* This ioctl takes a pointer to an array of &fw_cdev_iso_packet structs,
* which describe how to transmit from or receive into a contiguous region
- * of a mmap()'ed payload buffer. As part of the packet descriptors,
+ * of a mmap()'ed payload buffer. As part of transmit packet descriptors,
* a series of headers can be supplied, which will be prepended to the
* payload during DMA.
*
@@ -620,8 +652,8 @@ struct fw_cdev_get_cycle_timer2 {
* instead of allocated.
* An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
*
- * To summarize, %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE allocates iso resources
- * for the lifetime of the fd or handle.
+ * To summarize, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE allocates iso resources
+ * for the lifetime of the fd or @handle.
* In contrast, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE allocates iso resources
* for the duration of a bus generation.
*
diff --git a/include/linux/firewire-constants.h b/include/linux/firewire-constants.h
index b316770..9c63f06 100644
--- a/include/linux/firewire-constants.h
+++ b/include/linux/firewire-constants.h
@@ -1,3 +1,28 @@
+/*
+ * IEEE 1394 constants.
+ *
+ * Copyright (C) 2005-2007 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
#ifndef _LINUX_FIREWIRE_CONSTANTS_H
#define _LINUX_FIREWIRE_CONSTANTS_H
@@ -21,7 +46,7 @@
#define EXTCODE_WRAP_ADD 0x6
#define EXTCODE_VENDOR_DEPENDENT 0x7
-/* Juju specific tcodes */
+/* Linux firewire-core (Juju) specific tcodes */
#define TCODE_LOCK_MASK_SWAP (0x10 | EXTCODE_MASK_SWAP)
#define TCODE_LOCK_COMPARE_SWAP (0x10 | EXTCODE_COMPARE_SWAP)
#define TCODE_LOCK_FETCH_ADD (0x10 | EXTCODE_FETCH_ADD)
@@ -36,7 +61,7 @@
#define RCODE_TYPE_ERROR 0x6
#define RCODE_ADDRESS_ERROR 0x7
-/* Juju specific rcodes */
+/* Linux firewire-core (Juju) specific rcodes */
#define RCODE_SEND_ERROR 0x10
#define RCODE_CANCELLED 0x11
#define RCODE_BUSY 0x12
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 3bd018b..c964cd7 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -44,6 +44,7 @@ struct matrix_keymap_data {
* @active_low: gpio polarity
* @wakeup: controls whether the device should be set up as wakeup
* source
+ * @no_autorepeat: disable key autorepeat
*
* This structure represents platform-specific data that use used by
* matrix_keypad driver to perform proper initialization.
@@ -64,6 +65,7 @@ struct matrix_keypad_platform_data {
bool active_low;
bool wakeup;
+ bool no_autorepeat;
};
/**
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 717a5e5..e82957a 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -176,6 +176,7 @@ struct nfs_server {
#define NFS_CAP_ATIME (1U << 11)
#define NFS_CAP_CTIME (1U << 12)
#define NFS_CAP_MTIME (1U << 13)
+#define NFS_CAP_POSIX_LOCK (1U << 14)
/* maximum number of slots to use */
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 872a98e..07db2fe 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -101,10 +101,7 @@ extern struct lockdep_map rcu_sched_lock_map;
# define rcu_read_release_sched() \
lock_release(&rcu_sched_lock_map, 1, _THIS_IP_)
-static inline int debug_lockdep_rcu_enabled(void)
-{
- return likely(rcu_scheduler_active && debug_locks);
-}
+extern int debug_lockdep_rcu_enabled(void);
/**
* rcu_read_lock_held - might we be in RCU read-side critical section?
@@ -195,12 +192,30 @@ static inline int rcu_read_lock_sched_held(void)
/**
* rcu_dereference_check - rcu_dereference with debug checking
+ * @p: The pointer to read, prior to dereferencing
+ * @c: The conditions under which the dereference will take place
+ *
+ * Do an rcu_dereference(), but check that the conditions under which the
+ * dereference will take place are correct. Typically the conditions indicate
+ * the various locking conditions that should be held at that point. The check
+ * should return true if the conditions are satisfied.
+ *
+ * For example:
+ *
+ * bar = rcu_dereference_check(foo->bar, rcu_read_lock_held() ||
+ * lockdep_is_held(&foo->lock));
*
- * Do an rcu_dereference(), but check that the context is correct.
- * For example, rcu_dereference_check(gp, rcu_read_lock_held()) to
- * ensure that the rcu_dereference_check() executes within an RCU
- * read-side critical section. It is also possible to check for
- * locks being held, for example, by using lockdep_is_held().
+ * could be used to indicate to lockdep that foo->bar may only be dereferenced
+ * if either the RCU read lock is held, or that the lock required to replace
+ * the bar struct at foo->bar is held.
+ *
+ * Note that the list of conditions may also include indications of when a lock
+ * need not be held, for example during initialisation or destruction of the
+ * target struct:
+ *
+ * bar = rcu_dereference_check(foo->bar, rcu_read_lock_held() ||
+ * lockdep_is_held(&foo->lock) ||
+ * atomic_read(&foo->usage) == 0);
*/
#define rcu_dereference_check(p, c) \
({ \
@@ -209,13 +224,45 @@ static inline int rcu_read_lock_sched_held(void)
rcu_dereference_raw(p); \
})
+/**
+ * rcu_dereference_protected - fetch RCU pointer when updates prevented
+ *
+ * Return the value of the specified RCU-protected pointer, but omit
+ * both the smp_read_barrier_depends() and the ACCESS_ONCE(). This
+ * is useful in cases where update-side locks prevent the value of the
+ * pointer from changing. Please note that this primitive does -not-
+ * prevent the compiler from repeating this reference or combining it
+ * with other references, so it should not be used without protection
+ * of appropriate locks.
+ */
+#define rcu_dereference_protected(p, c) \
+ ({ \
+ if (debug_lockdep_rcu_enabled() && !(c)) \
+ lockdep_rcu_dereference(__FILE__, __LINE__); \
+ (p); \
+ })
+
#else /* #ifdef CONFIG_PROVE_RCU */
#define rcu_dereference_check(p, c) rcu_dereference_raw(p)
+#define rcu_dereference_protected(p, c) (p)
#endif /* #else #ifdef CONFIG_PROVE_RCU */
/**
+ * rcu_access_pointer - fetch RCU pointer with no dereferencing
+ *
+ * Return the value of the specified RCU-protected pointer, but omit the
+ * smp_read_barrier_depends() and keep the ACCESS_ONCE(). This is useful
+ * when the value of this pointer is accessed, but the pointer is not
+ * dereferenced, for example, when testing an RCU-protected pointer against
+ * NULL. This may also be used in cases where update-side locks prevent
+ * the value of the pointer from changing, but rcu_dereference_protected()
+ * is a lighter-weight primitive for this use case.
+ */
+#define rcu_access_pointer(p) ACCESS_ONCE(p)
+
+/**
* rcu_read_lock - mark the beginning of an RCU read-side critical section.
*
* When synchronize_rcu() is invoked on one CPU while other CPUs
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