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2012-01-06dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submitHaitao Zhang
mx53_loco: fix deadlock report from sdma_tx_submit() during boot BugLink: http://bugs.launchpad.net/bugs/878701 Adjust to use spin_lock_irqsave()/spin_unlock_irqresotre(), so to make it safe when called from interrupt context. Signed-off-by: Haitao Zhang <haitao.zhang@linaro.org> Signed-off-by: Eric Miao <eric.miao@linaro.org> Signed-off-by: Richard Zhao <richard.zhao@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-01-06s3c_adc_battery: Average over more than one adc sampleHeiko Stübner
Some sources for adc battery information provide only inaccurate results where the read value differs from the real value with positive and negative offsets. For such sources it can be more accurate to collect two or more value sample and use the average of all collected values. This patch adds pdata options volt_samples, current_samples and backup_volt_samples to specifiy the number of samples to collect, reads the specified number of samples and calculates the average of those. For unset sample-number-values a default of 1 is assumed. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06power_supply: Add DA9052 battery driverAshish Jangam
Driver for DA9052 battery charger. This driver depends on DA9052 MFD core dirver for definitions and methods. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: David Dajun Chen <dchen@diasemi.com> Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06isp1704_charger: Fix missing checkFelipe Contreras
A segfault happens if there's no board information. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Acked-by: Heikki Krogerus <krohei@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06jz4740-battery: Fix signedness bugAxel Lin
wait_for_completion_interruptible_timeout() may return negative value. In this case, checking if (t > 0) will return true if t is unsigned. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06power_supply: Assume mains power by defaultJean Delvare
If no power class device is found in power_supply_is_system_supplied(), the function currently returns 0, which basically means that the system is supposed to be running on battery. In practice, mobile devices tend to always implement at least one power class device and more often two (battery and AC adapter). Systems with no registered power class devices are more likely to be desktop systems, where the system is always powered by mains. So, change the default return value of power_supply_is_system_supplied() from 0 (running on battery) to 1 (running on mains.) Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06sbs-battery: Fix devicetree match tableOlof Johansson
It should be an of module table, not i2c. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06ARM: rx51: Add bq27200 i2c board infoPali Rohár
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06sbs-battery: Change power supply nameRhyland Klein
The power supply name used to be fixed as "battery". This change allows for multiple batteries by generating the name rather than using a fixed value. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06devicetree-bindings: Propagate bq20z75->sbs rename to dt bindingsRhyland Klein
Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06devicetree-bindings: Add vendor entry for Smart Battery SystemsRhyland Klein
Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06sbs-battery: Rename internals to new nameRhyland Klein
Now that this driver is named more generally, this change updates the internal variables, defines and functions to use this new name. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06bq20z75: Rename to sbs-batteryRhyland Klein
This driver for the bq20z75 implemented the register spec defined by the SBS standard. As this is not unique to this the TI part this was originally written for, we can generalize this driver to show its support for any SBS compliant battery. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06wm97xx_battery: Use DEFINE_MUTEX() for work_lockAxel Lin
work_lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). This patch also removes an unused bat_lock mutex. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-06max8997_charger: Remove duplicate module.hJonghwan Choi
module.h was included twice. Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-05capabilities: remove __cap_full_set definitionEric Paris
In 5163b583a036b103c3cec7171d6731c125773ed6 I removed __cap_full_set but forgot to remove it from a header. Do that. Reported-by: Kornilios Kourtis <kkourt@cslab.ece.ntua.gr> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05security: remove the security_netlink_recv hook as it is equivalent to capable()Eric Paris
Once upon a time netlink was not sync and we had to get the effective capabilities from the skb that was being received. Today we instead get the capabilities from the current task. This has rendered the entire purpose of the hook moot as it is now functionally equivalent to the capable() call. Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05ptrace: do not audit capability check when outputing /proc/pid/statEric Paris
Reading /proc/pid/stat of another process checks if one has ptrace permissions on that process. If one does have permissions it outputs some data about the process which might have security and attack implications. If the current task does not have ptrace permissions the read still works, but those fields are filled with inocuous (0) values. Since this check and a subsequent denial is not a violation of the security policy we should not audit such denials. This can be quite useful to removing ptrace broadly across a system without flooding the logs when ps is run or something which harmlessly walks proc. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: remove task_ns_* functionsEric Paris
task_ in the front of a function, in the security subsystem anyway, means to me at least, that we are operating with that task as the subject of the security decision. In this case what it means is that we are using current as the subject but we use the task to get the right namespace. Who in the world would ever realize that's what task_ns_capability means just by the name? This patch eliminates the task_ns functions entirely and uses the has_ns_capability function instead. This means we explicitly open code the ns in question in the caller. I think it makes the caller a LOT more clear what is going on. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabitlies: ns_capable can use the cap helpers rather than lsm callEric Paris
Just to reduce the number of places to change if we every change the LSM hook, use the capability helpers internally when possible. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: style only - move capable below ns_capableEric Paris
Although the current code is fine for consistency this moves the capable code below the function it calls in the c file. It doesn't actually change code. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilites: introduce new has_ns_capabilities_noauditEric Paris
For consistency in interfaces, introduce a new interface called has_ns_capabilities_noaudit. It checks if the given task has the given capability in the given namespace. Use this new function by has_capabilities_noaudit. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: call has_ns_capability from has_capabilityEric Paris
Declare the more specific has_ns_capability first in the code and then call it from has_capability. The declaration reversal isn't stricty necessary since they are both declared in header files, but it just makes sense to put more specific functions first in the code. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: remove all _real_ interfacesEric Paris
The name security_real_capable and security_real_capable_noaudit just don't make much sense to me. Convert them to use security_capable and security_capable_noaudit. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: introduce security_capable_noauditEric Paris
Exactly like security_capable except don't audit any denials. This is for places where the kernel may make decisions about what to do if a task has a given capability, but which failing that capability is not a sign of a security policy violation. An example is checking if a task has CAP_SYS_ADMIN to lower it's likelyhood of being killed by the oom killer. This check is not a security violation if it is denied. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Serge E. Hallyn <serge.hallyn@canonical.com>
2012-01-05capabilities: reverse arguments to security_capableEric Paris
security_capable takes ns, cred, cap. But the LSM capable() hook takes cred, ns, cap. The capability helper functions also take cred, ns, cap. Rather than flip argument order just to flip it back, leave them alone. Heck, this should be a little faster since argument will be in the right place! Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05capabilities: remove the task from capable LSM hook entirelyEric Paris
The capabilities framework is based around credentials, not necessarily the current task. Yet we still passed the current task down into LSMs from the security_capable() LSM hook as if it was a meaningful portion of the security decision. This patch removes the 'generic' passing of current and instead forces individual LSMs to use current explicitly if they think it is appropriate. In our case those LSMs are SELinux and AppArmor. I believe the AppArmor use of current is incorrect, but that is wholely unrelated to this patch. This patch does not change what AppArmor does, it just makes it clear in the AppArmor code that it is doing it. The SELinux code still uses current in it's audit message, which may also be wrong and needs further investigation. Again this is NOT a change, it may have always been wrong, this patch just makes it clear what is happening. Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: fix several warnings in the security server codJames Morris
Fix several sparse warnings in the SELinux security server code. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: fix warnings in netlink codeJames Morris
Fix sparse warnings in SELinux Netlink code. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: eliminate warnings for selinuxfsJames Morris
Fixes several sparse warnings for selinuxfs.c Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: declare selinux_disable() in security.hJames Morris
Sparse fix: declare selinux_disable() in security.h Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: move selinux_complete_initJames Morris
Sparse fix: move selinux_complete_init Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05selinux: sparse fix: make selinux_secmark_refcount staticJames Morris
Sparse fix: make selinux_secmark_refcount static. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Eric Paris <eparis@redhat.com>
2012-01-05vfs: fix up ENOIOCTLCMD error handlingLinus Torvalds
We're doing some odd things there, which already messes up various users (see the net/socket.c code that this removes), and it was going to add yet more crud to the block layer because of the incorrect error code translation. ENOIOCTLCMD is not an error return that should be returned to user mode from the "ioctl()" system call, but it should *not* be translated as EINVAL ("Invalid argument"). It should be translated as ENOTTY ("Inappropriate ioctl for device"). That EINVAL confusion has apparently so permeated some code that the block layer actually checks for it, which is sad. We continue to do so for now, but add a big comment about how wrong that is, and we should remove it entirely eventually. In the meantime, this tries to keep the changes localized to just the EINVAL -> ENOTTY fix, and removing code that makes it harder to do the right thing. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-05[media] Add AC97 8384:7650 for some versions of EMP202Gareth Williams
Fix detection of EMP202 audio chip. Some versions have an id of 0x83847650 instead of 0xffffffff Honestech Vidbox NW03 has a EMP202 audio chip with a different Vendor ID. Apparently, it is the same with the Gadmei ITV380: http://linuxtv.org/wiki/index.php/Gadmei_USB_TVBox_UTV380 Signed-off-by: Gareth Williams <gareth@garethwilliams.me.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-05[media] it913x add support for IT9135 9006 devicesMalcolm Priestley
Support for IT1935 9006 devices. 9006 have version 2 type chip. 9006 devices should use dvb-usb-it9135-02.fw firmware. On the device tested the tuner id was set to 0 which meant the driver used tuner id 0x38. The device functioned normally. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-05nfsd4: nfsd4_create_clid_dir return value is unusedJ. Bruce Fields
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05NFSD: Change name of extended attribute containing junctionChuck Lever
As of fedfs-utils-0.8.0, user space stores all NFS junction information in a single extended attribute: "trusted.junction.nfs". Both FedFS and NFS basic junctions are stored in this one attribute, and the intention is that all future forms of NFS junction metadata will be stored in this attribute. Other protocols may use a different extended attribute. Thus NFSD needs to look only for that one extended attribute. The "trusted.junction.type" xattr is deprecated. fedfs-utils-0.8.0 will continue to attach a "trusted.junction.type" xattr to junctions, but future fedfs-utils releases may no longer do that. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05svcrpc: don't revert to SVC_POOL_DEFAULT on nfsd shutdownJ. Bruce Fields
This was unexpected behavior (at least for me)--why would you want configuration settings automatically lost on nfsd restart? In practice this won't affect distributions, which likely set everything on every startup. But I'd expect the behavior to be less confusing to someone manually restarting nfsd for testing. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05svcrpc: fix double-free on shutdown of nfsd after changing pool modeJ. Bruce Fields
The pool_to and to_pool fields of the global svc_pool_map are freed on shutdown, but are initialized in nfsd startup only in the SVC_POOL_PERCPU and SVC_POOL_PERNODE cases. They *are* initialized to zero on kernel startup. So as long as you use only SVC_POOL_GLOBAL (the default), this will never be a problem. You're also OK if you only ever use SVC_POOL_PERCPU or SVC_POOL_PERNODE. However, the following sequence events leads to a double-free: 1. set SVC_POOL_PERCPU or SVC_POOL_PERNODE 2. start nfsd: both fields are initialized. 3. shutdown nfsd: both fields are freed. 4. set SVC_POOL_GLOBAL 5. start nfsd: the fields are left untouched. 6. shutdown nfsd: now we try to free them again. Step 4 is actually unnecessary, since (for some bizarre reason), nfsd automatically resets the pool mode to SVC_POOL_GLOBAL on shutdown. Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05nfsd4: be forgiving in the absence of the recovery directoryJ. Bruce Fields
If the recovery directory doesn't exist, then behavior after a reboot will be suboptimal. But it's unnecessarily harsh to then prevent the nfsv4 server from working at all. Instead just print a warning (already done in nfsd4_init_recdir()) and soldier on. Tested-by: Lior <lior@tonian.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05USB: Add USB-ID for Multiplex RC serial adapter to cp210x.cMalte Schröder
Hi, below patch adds the USB-ID of the serial adapters sold by Multiplex RC (www.multiplex-rc.de). Signed-off-by: Malte Schröder <maltesch@gmx.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-05net: pack skb_shared_info more efficientlyIan Campbell
nr_frags can be 8 bits since 256 is plenty of fragments. This allows it to be packed with tx_flags. Also by moving ip6_frag_id and dataref (both 4 bytes) next to each other we can avoid a hole between ip6_frag_id and frag_list on 64 bit systems. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05net_sched: red: split red_parms into parms and varsEric Dumazet
This patch splits the red_parms structure into two components. One holding the RED 'constant' parameters, and one containing the variables. This permits a size reduction of GRED qdisc, and is a preliminary step to add an optional RED unit to SFQ. SFQRED will have a single red_parms structure shared by all flows, and a private red_vars per flow. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Dave Taht <dave.taht@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05net_sched: sfq: extend limitsEric Dumazet
SFQ as implemented in Linux is very limited, with at most 127 flows and limit of 127 packets. [ So if 127 flows are active, we have one packet per flow ] This patch brings to SFQ following features to cope with modern needs. - Ability to specify a smaller per flow limit of inflight packets. (default value being at 127 packets) - Ability to have up to 65408 active flows (instead of 127) - Ability to have head drops instead of tail drops (to drop old packets from a flow) Example of use : No more than 20 packets per flow, max 8000 flows, max 20000 packets in SFQ qdisc, hash table of 65536 slots. tc qdisc add ... sfq \ flows 8000 \ depth 20 \ headdrop \ limit 20000 \ divisor 65536 Ram usage : 2 bytes per hash table entry (instead of previous 1 byte/entry) 32 bytes per flow on 64bit arches, instead of 384 for QFQ, so much better cache hit ratio. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Dave Taht <dave.taht@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05cnic: Improve error recovery on bnx2x devicesMichael Chan
When a bnx2x device encounters parity errors, it will not respond to all SPQ messages. As a result, the shutdown sequence before reset can take a long time as the ulp drivers (bnx2i/bnx2fc) have to wait for timeout of all such messages. To improve this scenario, when bnx2x returns error on the SPQ, we'll send an immediate response to the ulp drivers to avoid such lengthy timeouts. Adjust the return code of relevant functions to return error only if the message cannot be sent on the SPQ so that we'll generate an error completion to the ulp drivers. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05cnic: Re-init dev->stats_addr after chip resetMichael Chan
because bnx2x frees the old and allocates new memory during chip reset. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-05[media] drxk_hard: fix locking issues when changing the delsysMauro Carvalho Chehab
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-05[media] drxk: create only one frontend for both DVB-C and DVB-TMauro Carvalho Chehab
Instead of creating two DVB frontend entries for the same device, create just one entry, and fill the delivery_system according with the supported standards. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-05[media] drxk: remove ops.info.frequency_stepsize from DVB-CMauro Carvalho Chehab
ops.info.frequency_stepsize is used only for DVB-T & friends. For DVB-C, the step size is calculated using the symbol rate. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>