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authorTakashi Iwai <tiwai@suse.de>2013-09-11 12:38:45 +0200
committerTakashi Iwai <tiwai@suse.de>2013-09-11 12:38:45 +0200
commit3d0049e8529adaa36c38a7b400792f6c37b66c92 (patch)
tree7d2e30a5e3f12207305ffc76d80d310c0a95fdcc /include
parentbe8cf44526d8972c2dbf6e561162dad924a712a5 (diff)
parent2ae2caff8348378c9e464353e9860ee97583c00b (diff)
downloadlinux-linaro-stable-3d0049e8529adaa36c38a7b400792f6c37b66c92.tar.gz
Merge tag 'asoc-v3.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.12 A few small fixes, nothing with any broad impact but all useful for the affected systems. The Kirkwood compatible string change is fixing up a string just added in the merge window so that we don't get any changes in released kernels.
Diffstat (limited to 'include')
-rw-r--r--include/linux/dcache.h19
-rw-r--r--include/linux/lockref.h71
-rw-r--r--include/linux/nsproxy.h6
-rw-r--r--include/linux/regmap.h1
-rw-r--r--include/net/busy_poll.h1
-rw-r--r--include/net/genetlink.h20
-rw-r--r--include/net/mac80211.h1
-rw-r--r--include/net/route.h8
-rw-r--r--include/net/xfrm.h6
-rw-r--r--include/sound/rcar_snd.h2
-rw-r--r--include/uapi/linux/cm4000_cs.h1
11 files changed, 122 insertions, 14 deletions
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 4a12532da8c4..efdc94434c30 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -9,6 +9,7 @@
#include <linux/seqlock.h>
#include <linux/cache.h>
#include <linux/rcupdate.h>
+#include <linux/lockref.h>
struct nameidata;
struct path;
@@ -100,6 +101,8 @@ extern unsigned int full_name_hash(const unsigned char *, unsigned int);
# endif
#endif
+#define d_lock d_lockref.lock
+
struct dentry {
/* RCU lookup touched fields */
unsigned int d_flags; /* protected by d_lock */
@@ -112,8 +115,7 @@ struct dentry {
unsigned char d_iname[DNAME_INLINE_LEN]; /* small names */
/* Ref lookup also touches following */
- unsigned int d_count; /* protected by d_lock */
- spinlock_t d_lock; /* per dentry lock */
+ struct lockref d_lockref; /* per-dentry lock and refcount */
const struct dentry_operations *d_op;
struct super_block *d_sb; /* The root of the dentry tree */
unsigned long d_time; /* used by d_revalidate */
@@ -318,7 +320,7 @@ static inline int __d_rcu_to_refcount(struct dentry *dentry, unsigned seq)
assert_spin_locked(&dentry->d_lock);
if (!read_seqcount_retry(&dentry->d_seq, seq)) {
ret = 1;
- dentry->d_count++;
+ dentry->d_lockref.count++;
}
return ret;
@@ -326,7 +328,7 @@ static inline int __d_rcu_to_refcount(struct dentry *dentry, unsigned seq)
static inline unsigned d_count(const struct dentry *dentry)
{
- return dentry->d_count;
+ return dentry->d_lockref.count;
}
/* validate "insecure" dentry pointer */
@@ -357,17 +359,14 @@ extern char *dentry_path(struct dentry *, char *, int);
static inline struct dentry *dget_dlock(struct dentry *dentry)
{
if (dentry)
- dentry->d_count++;
+ dentry->d_lockref.count++;
return dentry;
}
static inline struct dentry *dget(struct dentry *dentry)
{
- if (dentry) {
- spin_lock(&dentry->d_lock);
- dget_dlock(dentry);
- spin_unlock(&dentry->d_lock);
- }
+ if (dentry)
+ lockref_get(&dentry->d_lockref);
return dentry;
}
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
new file mode 100644
index 000000000000..01233e01627a
--- /dev/null
+++ b/include/linux/lockref.h
@@ -0,0 +1,71 @@
+#ifndef __LINUX_LOCKREF_H
+#define __LINUX_LOCKREF_H
+
+/*
+ * Locked reference counts.
+ *
+ * These are different from just plain atomic refcounts in that they
+ * are atomic with respect to the spinlock that goes with them. In
+ * particular, there can be implementations that don't actually get
+ * the spinlock for the common decrement/increment operations, but they
+ * still have to check that the operation is done semantically as if
+ * the spinlock had been taken (using a cmpxchg operation that covers
+ * both the lock and the count word, or using memory transactions, for
+ * example).
+ */
+
+#include <linux/spinlock.h>
+
+struct lockref {
+ spinlock_t lock;
+ unsigned int count;
+};
+
+/**
+ * lockref_get - Increments reference count unconditionally
+ * @lockcnt: pointer to lockref structure
+ *
+ * This operation is only valid if you already hold a reference
+ * to the object, so you know the count cannot be zero.
+ */
+static inline void lockref_get(struct lockref *lockref)
+{
+ spin_lock(&lockref->lock);
+ lockref->count++;
+ spin_unlock(&lockref->lock);
+}
+
+/**
+ * lockref_get_not_zero - Increments count unless the count is 0
+ * @lockcnt: pointer to lockref structure
+ * Return: 1 if count updated successfully or 0 if count is 0
+ */
+static inline int lockref_get_not_zero(struct lockref *lockref)
+{
+ int retval = 0;
+
+ spin_lock(&lockref->lock);
+ if (lockref->count) {
+ lockref->count++;
+ retval = 1;
+ }
+ spin_unlock(&lockref->lock);
+ return retval;
+}
+
+/**
+ * lockref_put_or_lock - decrements count unless count <= 1 before decrement
+ * @lockcnt: pointer to lockref structure
+ * Return: 1 if count updated successfully or 0 if count <= 1 and lock taken
+ */
+static inline int lockref_put_or_lock(struct lockref *lockref)
+{
+ spin_lock(&lockref->lock);
+ if (lockref->count <= 1)
+ return 0;
+ lockref->count--;
+ spin_unlock(&lockref->lock);
+ return 1;
+}
+
+#endif /* __LINUX_LOCKREF_H */
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 10e5947491c7..b4ec59d159ac 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -14,6 +14,10 @@ struct fs_struct;
* A structure to contain pointers to all per-process
* namespaces - fs (mount), uts, network, sysvipc, etc.
*
+ * The pid namespace is an exception -- it's accessed using
+ * task_active_pid_ns. The pid namespace here is the
+ * namespace that children will use.
+ *
* 'count' is the number of tasks holding a reference.
* The count for each namespace, then, will be the number
* of nsproxies pointing to it, not the number of tasks.
@@ -27,7 +31,7 @@ struct nsproxy {
struct uts_namespace *uts_ns;
struct ipc_namespace *ipc_ns;
struct mnt_namespace *mnt_ns;
- struct pid_namespace *pid_ns;
+ struct pid_namespace *pid_ns_for_children;
struct net *net_ns;
};
extern struct nsproxy init_nsproxy;
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 580a5320cc96..6d91fcb4c5cb 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -16,6 +16,7 @@
#include <linux/list.h>
#include <linux/rbtree.h>
#include <linux/err.h>
+#include <linux/bug.h>
struct module;
struct device;
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index 8a358a2c97e6..829627d7b846 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -123,6 +123,7 @@ static inline bool sk_busy_loop(struct sock *sk, int nonblock)
/* local bh are disabled so it is ok to use _BH */
NET_ADD_STATS_BH(sock_net(sk),
LINUX_MIB_BUSYPOLLRXPACKETS, rc);
+ cpu_relax();
} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
!need_resched() && !busy_loop_timeout(end_time));
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 93024a47e0e2..8e0b6c856a13 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -61,6 +61,7 @@ struct genl_family {
struct list_head ops_list; /* private */
struct list_head family_list; /* private */
struct list_head mcast_groups; /* private */
+ struct module *module;
};
/**
@@ -121,9 +122,24 @@ struct genl_ops {
struct list_head ops_list;
};
-extern int genl_register_family(struct genl_family *family);
-extern int genl_register_family_with_ops(struct genl_family *family,
+extern int __genl_register_family(struct genl_family *family);
+
+static inline int genl_register_family(struct genl_family *family)
+{
+ family->module = THIS_MODULE;
+ return __genl_register_family(family);
+}
+
+extern int __genl_register_family_with_ops(struct genl_family *family,
struct genl_ops *ops, size_t n_ops);
+
+static inline int genl_register_family_with_ops(struct genl_family *family,
+ struct genl_ops *ops, size_t n_ops)
+{
+ family->module = THIS_MODULE;
+ return __genl_register_family_with_ops(family, ops, n_ops);
+}
+
extern int genl_unregister_family(struct genl_family *family);
extern int genl_register_ops(struct genl_family *, struct genl_ops *ops);
extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5b7a3dadadde..551ba6a6a073 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1499,6 +1499,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_RC_TABLE = 1<<24,
IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25,
IEEE80211_HW_TIMING_BEACON_ONLY = 1<<26,
+ IEEE80211_HW_SUPPORTS_HT_CCK_RATES = 1<<27,
};
/**
diff --git a/include/net/route.h b/include/net/route.h
index 2ea40c1b5e00..afdeeb5bec25 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -317,4 +317,12 @@ static inline int ip4_dst_hoplimit(const struct dst_entry *dst)
return hoplimit;
}
+static inline int ip_skb_dst_mtu(struct sk_buff *skb)
+{
+ struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
+
+ return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
+ skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
+}
+
#endif /* _ROUTE_H */
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 94ce082b29dc..e823786e7c66 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -341,10 +341,13 @@ struct xfrm_state_afinfo {
struct sk_buff *skb);
int (*transport_finish)(struct sk_buff *skb,
int async);
+ void (*local_error)(struct sk_buff *skb, u32 mtu);
};
extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
+extern struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
+extern void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
extern void xfrm_state_delete_tunnel(struct xfrm_state *x);
@@ -1477,6 +1480,7 @@ extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
extern int xfrm_output_resume(struct sk_buff *skb, int err);
extern int xfrm_output(struct sk_buff *skb);
extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
+extern void xfrm_local_error(struct sk_buff *skb, int mtu);
extern int xfrm4_extract_header(struct sk_buff *skb);
extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
@@ -1497,6 +1501,7 @@ extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short fam
extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
extern int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler);
extern int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler);
+extern void xfrm4_local_error(struct sk_buff *skb, u32 mtu);
extern int xfrm6_extract_header(struct sk_buff *skb);
extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi);
@@ -1514,6 +1519,7 @@ extern int xfrm6_output(struct sk_buff *skb);
extern int xfrm6_output_finish(struct sk_buff *skb);
extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
u8 **prevhdr);
+extern void xfrm6_local_error(struct sk_buff *skb, u32 mtu);
#ifdef CONFIG_XFRM
extern int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb);
diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h
index d35412ae03b3..fe66533e9b7a 100644
--- a/include/sound/rcar_snd.h
+++ b/include/sound/rcar_snd.h
@@ -55,7 +55,7 @@ struct rsnd_ssi_platform_info {
/*
* flags
*/
-#define RSND_SCU_USB_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
+#define RSND_SCU_USE_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
struct rsnd_scu_platform_info {
u32 flags;
diff --git a/include/uapi/linux/cm4000_cs.h b/include/uapi/linux/cm4000_cs.h
index bc51f77db918..1217f751a1bc 100644
--- a/include/uapi/linux/cm4000_cs.h
+++ b/include/uapi/linux/cm4000_cs.h
@@ -2,6 +2,7 @@
#define _UAPI_CM4000_H_
#include <linux/types.h>
+#include <linux/ioctl.h>
#define MAX_ATR 33