Merge branch 'linaro-fixes/android-3.10' into 'linaro-android-3.10-lsk'

12 files changed, 133 insertions, 28 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6e5c7c7333bd..74b49ba13b1f 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1333,6 +1333,19 @@ ndisc_notify - BOOLEAN
 	1 - Generate unsolicited neighbour advertisements when device is brought
 	    up or hardware address changes.
 
+optimistic_dad - BOOLEAN
+	Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
+		0: disabled (default)
+		1: enabled
+
+use_optimistic - BOOLEAN
+	If enabled, do not classify optimistic addresses as deprecated during
+	source address selection.  Preferred addresses will still be chosen
+	before optimistic addresses, subject to other ranking in the source
+	address selection algorithm.
+		0: disabled (default)
+		1: enabled
+
 icmp/*:
 ratelimit - INTEGER
 	Limit the maximal rates for sending ICMPv6 packets.
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 8f73d835d4d5..a2bcbd2e0f9a 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -831,6 +831,17 @@ unsigned short css_id(struct cgroup_subsys_state *css);
 unsigned short css_depth(struct cgroup_subsys_state *css);
 struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id);
 
+/*
+ * Default Android check for whether the current process is allowed to move a
+ * task across cgroups, either because CAP_SYS_NICE is set or because the uid
+ * of the calling process is the same as the moved task or because we are
+ * running as root.
+ * Returns 0 if this is allowed, or -EACCES otherwise.
+ */
+int subsys_cgroup_allow_attach(struct cgroup *cgrp,
+			       struct cgroup_taskset *tset);
+
+
 #else /* !CONFIG_CGROUPS */
 
 static inline int cgroup_init_early(void) { return 0; }
@@ -854,6 +865,11 @@ static inline int cgroup_attach_task_all(struct task_struct *from,
 	return 0;
 }
 
+static inline int subsys_cgroup_allow_attach(struct cgroup *cgrp,
+					     struct cgroup_taskset *tset)
+{
+	return 0;
+}
 #endif /* !CONFIG_CGROUPS */
 
 #endif /* _LINUX_CGROUP_H */
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 867833ba6bd1..76b5114e9d82 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -41,6 +41,7 @@ struct ipv6_devconf {
 	__s32		accept_source_route;
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
 	__s32		optimistic_dad;
+	__s32		use_optimistic;
 #endif
 #ifdef CONFIG_IPV6_MROUTE
 	__s32		mc_forwarding;
diff --git a/include/linux/wakeup_reason.h b/include/linux/wakeup_reason.h
index 5f095da2c977..ad8b76936c7f 100644
--- a/include/linux/wakeup_reason.h
+++ b/include/linux/wakeup_reason.h
@@ -22,4 +22,6 @@
 
 void log_wakeup_reason(int irq);
 void log_suspend_abort_reason(const char *fmt, ...);
+int check_wakeup_reason(int irq);
+
 #endif /* _LINUX_WAKEUP_REASON_H */
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index 4214fac1bf4f..e9d0f7efde3b 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -161,6 +161,7 @@ enum {
 	DEVCONF_FORCE_TLLAO,
 	DEVCONF_NDISC_NOTIFY,
 	DEVCONF_ACCEPT_RA_RT_TABLE,
+	DEVCONF_USE_OPTIMISTIC,
 	DEVCONF_MAX
 };
 
diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h
index 602dc6c45d1a..165e7059de75 100644
--- a/include/uapi/sound/compress_params.h
+++ b/include/uapi/sound/compress_params.h
@@ -57,6 +57,7 @@
 #define MAX_NUM_CODECS 32
 #define MAX_NUM_CODEC_DESCRIPTORS 32
 #define MAX_NUM_BITRATES 32
+#define MAX_NUM_SAMPLE_RATES 32
 
 /* Codecs are listed linearly to allow for extensibility */
 #define SND_AUDIOCODEC_PCM                   ((__u32) 0x00000001)
@@ -324,7 +325,8 @@ union snd_codec_options {
 
 /** struct snd_codec_desc - description of codec capabilities
  * @max_ch: Maximum number of audio channels
- * @sample_rates: Sampling rates in Hz, use SNDRV_PCM_RATE_xxx for this
+ * @sample_rates: Sampling rates in Hz, use values like 48000 for this
+ * @num_sample_rates: Number of valid values in sample_rates array
  * @bit_rate: Indexed array containing supported bit rates
  * @num_bitrates: Number of valid values in bit_rate array
  * @rate_control: value is specified by SND_RATECONTROLMODE defines.
@@ -346,7 +348,8 @@ union snd_codec_options {
 
 struct snd_codec_desc {
 	__u32 max_ch;
-	__u32 sample_rates;
+	__u32 sample_rates[MAX_NUM_SAMPLE_RATES];
+	__u32 num_sample_rates;
 	__u32 bit_rate[MAX_NUM_BITRATES];
 	__u32 num_bitrates;
 	__u32 rate_control;
@@ -364,7 +367,8 @@ struct snd_codec_desc {
  * @ch_out: Number of output channels. In case of contradiction between
  *		this field and the channelMode field, the channelMode field
  *		overrides.
- * @sample_rate: Audio sample rate of input data
+ * @sample_rate: Audio sample rate of input data in Hz, use values like 48000
+ *		for this.
  * @bit_rate: Bitrate of encoded data. May be ignored by decoders
  * @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines.
  *               Encoders may rely on profiles for quality levels.
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 1f5338773862..8dc7ec1de429 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2116,6 +2116,25 @@ static int cgroup_allow_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
 	return 0;
 }
 
+int subsys_cgroup_allow_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
+{
+	const struct cred *cred = current_cred(), *tcred;
+	struct task_struct *task;
+
+	if (capable(CAP_SYS_NICE))
+		return 0;
+
+	cgroup_taskset_for_each(task, cgrp, tset) {
+		tcred = __task_cred(task);
+
+		if (current != task && cred->euid != tcred->uid &&
+		    cred->euid != tcred->suid)
+			return -EACCES;
+	}
+
+	return 0;
+}
+
 /*
  * Find the task_struct of the task to attach by vpid and pass it along to the
  * function to attach either it or all tasks in its threadgroup. Will lock
diff --git a/kernel/power/wakeup_reason.c b/kernel/power/wakeup_reason.c
index 2aacc34ef17c..085c99edca06 100644
--- a/kernel/power/wakeup_reason.c
+++ b/kernel/power/wakeup_reason.c
@@ -34,7 +34,7 @@ static int irqcount;
 static bool suspend_abort;
 static char abort_reason[MAX_SUSPEND_ABORT_LEN];
 static struct kobject *wakeup_reason;
-static spinlock_t resume_reason_lock;
+static DEFINE_SPINLOCK(resume_reason_lock);
 
 static ssize_t last_resume_reason_show(struct kobject *kobj, struct kobj_attribute *attr,
 		char *buf)
@@ -95,6 +95,21 @@ void log_wakeup_reason(int irq)
 	spin_unlock(&resume_reason_lock);
 }
 
+int check_wakeup_reason(int irq)
+{
+	int irq_no;
+	int ret = false;
+
+	spin_lock(&resume_reason_lock);
+	for (irq_no = 0; irq_no < irqcount; irq_no++)
+		if (irq_list[irq_no] == irq) {
+			ret = true;
+			break;
+	}
+	spin_unlock(&resume_reason_lock);
+	return ret;
+}
+
 void log_suspend_abort_reason(const char *fmt, ...)
 {
 	va_list args;
@@ -141,7 +156,7 @@ static struct notifier_block wakeup_reason_pm_notifier_block = {
 int __init wakeup_reason_init(void)
 {
 	int retval;
-	spin_lock_init(&resume_reason_lock);
+
 	retval = register_pm_notifier(&wakeup_reason_pm_notifier_block);
 	if (retval)
 		printk(KERN_WARNING "[%s] failed to register PM notifier %d\n",
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 014040fa3d21..d5c5c9824511 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7716,23 +7716,6 @@ static void cpu_cgroup_css_offline(struct cgroup *cgrp)
 	sched_offline_group(tg);
 }
 
-static int
-cpu_cgroup_allow_attach(struct cgroup *cgrp, struct cgroup_taskset *tset)
-{
-	const struct cred *cred = current_cred(), *tcred;
-	struct task_struct *task;
-
-	cgroup_taskset_for_each(task, cgrp, tset) {
-		tcred = __task_cred(task);
-
-		if ((current != task) && !capable(CAP_SYS_NICE) &&
-		    cred->euid != tcred->uid && cred->euid != tcred->suid)
-			return -EACCES;
-	}
-
-	return 0;
-}
-
 static int cpu_cgroup_can_attach(struct cgroup *cgrp,
 				 struct cgroup_taskset *tset)
 {
@@ -8092,7 +8075,7 @@ struct cgroup_subsys cpu_cgroup_subsys = {
 	.css_offline	= cpu_cgroup_css_offline,
 	.can_attach	= cpu_cgroup_can_attach,
 	.attach		= cpu_cgroup_attach,
-	.allow_attach	= cpu_cgroup_allow_attach,
+	.allow_attach	= subsys_cgroup_allow_attach,
 	.exit		= cpu_cgroup_exit,
 	.subsys_id	= cpu_cgroup_subsys_id,
 	.base_cftypes	= cpu_files,
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 194721839cf5..338d62a05200 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6753,6 +6753,12 @@ static int mem_cgroup_can_attach(struct cgroup *cgroup,
 	return ret;
 }
 
+static int mem_cgroup_allow_attach(struct cgroup *cgroup,
+				   struct cgroup_taskset *tset)
+{
+	return subsys_cgroup_allow_attach(cgroup, tset);
+}
+
 static void mem_cgroup_cancel_attach(struct cgroup *cgroup,
 				     struct cgroup_taskset *tset)
 {
@@ -6921,6 +6927,11 @@ static int mem_cgroup_can_attach(struct cgroup *cgroup,
 {
 	return 0;
 }
+static int mem_cgroup_allow_attach(struct cgroup *cgroup,
+				   struct cgroup_taskset *tset)
+{
+	return 0;
+}
 static void mem_cgroup_cancel_attach(struct cgroup *cgroup,
 				     struct cgroup_taskset *tset)
 {
@@ -6956,6 +6967,7 @@ struct cgroup_subsys mem_cgroup_subsys = {
 	.can_attach = mem_cgroup_can_attach,
 	.cancel_attach = mem_cgroup_cancel_attach,
 	.attach = mem_cgroup_move_task,
+	.allow_attach = mem_cgroup_allow_attach,
 	.bind = mem_cgroup_bind,
 	.base_cftypes = mem_cgroup_files,
 	.early_init = 0,
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index cec8cb4d292d..e1381119a6d8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1174,6 +1174,9 @@ enum {
 #endif
 	IPV6_SADDR_RULE_ORCHID,
 	IPV6_SADDR_RULE_PREFIX,
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+	IPV6_SADDR_RULE_NOT_OPTIMISTIC,
+#endif
 	IPV6_SADDR_RULE_MAX
 };
 
@@ -1201,6 +1204,15 @@ static inline int ipv6_saddr_preferred(int type)
 	return 0;
 }
 
+static inline bool ipv6_use_optimistic_addr(struct inet6_dev *idev)
+{
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+	return idev && idev->cnf.optimistic_dad && idev->cnf.use_optimistic;
+#else
+	return false;
+#endif
+}
+
 static int ipv6_get_saddr_eval(struct net *net,
 			       struct ipv6_saddr_score *score,
 			       struct ipv6_saddr_dst *dst,
@@ -1261,10 +1273,16 @@ static int ipv6_get_saddr_eval(struct net *net,
 		score->scopedist = ret;
 		break;
 	case IPV6_SADDR_RULE_PREFERRED:
+	    {
 		/* Rule 3: Avoid deprecated and optimistic addresses */
+		u8 avoid = IFA_F_DEPRECATED;
+
+		if (!ipv6_use_optimistic_addr(score->ifa->idev))
+			avoid |= IFA_F_OPTIMISTIC;
 		ret = ipv6_saddr_preferred(score->addr_type) ||
-		      !(score->ifa->flags & (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC));
+		      !(score->ifa->flags & avoid);
 		break;
+	    }
 #ifdef CONFIG_IPV6_MIP6
 	case IPV6_SADDR_RULE_HOA:
 	    {
@@ -1312,6 +1330,14 @@ static int ipv6_get_saddr_eval(struct net *net,
 			ret = score->ifa->prefix_len;
 		score->matchlen = ret;
 		break;
+#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
+	case IPV6_SADDR_RULE_NOT_OPTIMISTIC:
+		/* Optimistic addresses still have lower precedence than other
+		 * preferred addresses.
+		 */
+		ret = !(score->ifa->flags & IFA_F_OPTIMISTIC);
+		break;
+#endif
 	default:
 		ret = 0;
 	}
@@ -3245,8 +3271,15 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp)
 	 * Optimistic nodes can start receiving
 	 * Frames right away
 	 */
-	if (ifp->flags & IFA_F_OPTIMISTIC)
+	if (ifp->flags & IFA_F_OPTIMISTIC) {
 		ip6_ins_rt(ifp->rt);
+		if (ipv6_use_optimistic_addr(idev)) {
+			/* Because optimistic nodes can use this address,
+			 * notify listeners. If DAD fails, RTM_DELADDR is sent.
+			 */
+			ipv6_ifa_notify(RTM_NEWADDR, ifp);
+		}
+	}
 
 	addrconf_dad_kick(ifp);
 out:
@@ -4192,6 +4225,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 	array[DEVCONF_ACCEPT_SOURCE_ROUTE] = cnf->accept_source_route;
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
 	array[DEVCONF_OPTIMISTIC_DAD] = cnf->optimistic_dad;
+	array[DEVCONF_USE_OPTIMISTIC] = cnf->use_optimistic;
 #endif
 #ifdef CONFIG_IPV6_MROUTE
 	array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding;
@@ -4926,6 +4960,14 @@ static struct addrconf_sysctl_table
 			.proc_handler   = proc_dointvec,
 
 		},
+		{
+			.procname       = "use_optimistic",
+			.data           = &ipv6_devconf.use_optimistic,
+			.maxlen         = sizeof(int),
+			.mode           = 0644,
+			.proc_handler   = proc_dointvec,
+
+		},
 #endif
 #ifdef CONFIG_IPV6_MROUTE
 		{
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 99db892d7299..fe399f8c18f4 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -490,9 +490,6 @@ static int snd_compress_check_input(struct snd_compr_params *params)
 	if (params->codec.ch_in == 0 || params->codec.ch_out == 0)
 		return -EINVAL;
 
-	if (!(params->codec.sample_rate & SNDRV_PCM_RATE_8000_192000))
-		return -EINVAL;
-
 	return 0;
 }