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2015-04-06nfc: hci: Add comment to explain NFC_HCI_MAX_PIPESChristophe Ricard
According to specification etsi 102 622 chapter 4.4 pipes identifier is 7 bits long giving a 127 possible pipes value. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-04-06NFC: st21nfca: Change st21nfca_get_iso14443_3_uid parameter nameChristophe Ricard
st21nfca_get_iso14443_3_uid gate parameter name is incorrect and should be uid. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-04-06NFC: st21nfca: fix st21nfca_get_iso14443_3_uid data copyChristophe Ricard
st21nfca_get_iso14443_3_uid() does not correctly copy the uid from uid_skb->data to its gate parameter. "gate = uid_skb->data;" only puts a pointer to uid_skb->data to the local variable gate. This means that in st21nfca_hci_target_from_gate() the content of "u8 uid[NFC_NFCID1_MAXSIZE]" local variable is never initialized before being used in memcpy(target->nfcid1, uid, len). Fix this by replacing the local variable assignment with a memcpy. This was found by compiling Linux with "gcc -Wunused-but-set-parameter". Acked-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-04-06NFC: st21nfcb: Retry i2c_master_send if it returns a negative valueChristophe Ricard
i2c_master_send may return many negative values different than -EREMOTEIO. In case an i2c transaction is NACK'ed, on raspberry pi B+ kernel 3.18, -EIO is generated instead. Cc: stable@vger.kernel.org Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-04-05NFC: st21nfcb: Fix memory leak in secure element probing stageChristophe Ricard
In case the hci session is successfully initialized we never release the nci_core_conn_create dest_params. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-04-05HID: logitech-hidpp: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-04-05ALSA: emu10k1: add Audigy 5/RxMichael Gernoth
The Audigy 5/Rx is essentially an Audigy 4 behind a PLX PCIe- bridge with an additional TOSLINK output. Signed-off-by: Michael Gernoth <michael@gernoth.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-05Input: alps - document stick behavior for protocol V2Hans de Goede
Document that protocol V2 uses standard (bare) PS/2 mouse packets for the DualPoint stick. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-By: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-04-05Input: alps - report V2 Dualpoint Stick events via the right evdev nodeHans de Goede
On V2 devices the DualPoint Stick reports bare packets, these should be reported via the "AlpsPS/2 ALPS DualPoint Stick" dev2 evdev node, which also has the INPUT_PROP_POINTING_STICK propbit set. Note that since there is no way to distinguish these packets from an external PS/2 mouse (insofar as these laptops have an external PS/2 port) this means that we will be reporting PS/2 mouse events via this evdev node too, as we've been doing in kernel 3.19 and older. This has been tested on a Dell Latitude D620 and a Dell Latitude E6400, which both have a V2 touchpad + a DualPoint Stick which reports bare packets. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-04-05Input: alps - report interleaved bare PS/2 packets via dev3Hans de Goede
Bare packets should be reported via the same evdev device independent on whether they are detected on the beginning of a packet or in the middle of a packet. This has been tested on a Dell Latitude E6400, where the DualPoint Stick reports bare packets, which get reported via dev3 when the touchpad is idle, and via dev2 when the touchpad and stick are used simultaneously. This commit fixes this inconsistency by always reporting bare packets via dev3. Note that since the come from a DualPoint Stick they really should be reported via dev2, this gets fixed in a later commit. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-04-05staging: lustre: orthography & coding styleAmaury.Bouchra.Pilet@ENS.fr
Orthography and coding style corrections. Signed-off-by: Amaury Bouchra Pilet <Amaury.Bouchra.Pilet@ENS.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-05staging: lustre: lnet: lnet: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-05staging: lustre: fix sparse warningTal Shorer
Sparse reports: drivers/staging/lustre/lustre/obdclass/obd_mount.c:1284:6: warning: symbol 'lustre_kill_super' was not declared. Should it be static? Fix this warning by making lustre_kill_super static. It is not used outside this file. Signed-off-by: Tal Shorer <tal.shorer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-04-05ALSA: au1x00: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-05hwmon: (it87) Add support for 6th fan of IT8620EGuenter Roeck
IT8620E supports up to 6 fan tachometers. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Add support for IT8620EGuenter Roeck
IT8620E is mostly compatible to IT7828F. Add generic support for it. IT8620E supports up to 6 fan tachometers and 6 pwm controls. Support for the 6th tachometer and for the additional pwm controls are addded in separate patches. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Add support for IT8790EGuenter Roeck
IT8790E is a super-IO chip with three fan tachometers. It is mostly compatible to IT8728F, but only supports three fan tachometers instead of five. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Introduce feature flag to reflect internal in7 sensorGuenter Roeck
On some chips, in7 is always an internal voltage sensor. Introduce feature flag to reflect this condition to simplify adding support for new chips. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Introduce configuration field for chip suffixGuenter Roeck
ITE chips may have 'E', 'F', or both 'E' and 'F' suffixes. Introduce suffic configuration to the it87_devices structure to simplify adding new chips. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05hwmon: (it87) Fix PWM frequency display for chips with newer PWM controlGuenter Roeck
On chips with newer PWM control, the PWM frequency divider is 256 instead of 128. Since the base PWM frequency remained the same, the actual PWM frequency is half of what it used to be with the older PWM control mechanism. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-04-05HSI: cmt_speech: fix error return codeJulia Lawall
Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-04-05ALSA: Use const struct ac97_quirkJoe Perches
Use const to reduce data by ~3Kb. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04Merge tag 'usb-4.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some small USB fixes and new device ids for 4.0-rc6. Nothing major, some xhci fixes for reported problems, and some usb-serial device ids. All have been in linux-next for a while" * tag 'usb-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: ftdi_sio: Use jtag quirk for SNAP Connect E10 usb: isp1760: fix spin unlock in the error path of isp1760_udc_start usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers usb: xhci: handle Config Error Change (CEC) in xhci driver USB: keyspan_pda: add new device id USB: ftdi_sio: Added custom PID for Synapse Wireless product
2015-04-04Merge branch 'nf-hook-compress'David S. Miller
netfilter: Compress hook function signatures. Currently netfilter hooks have a function signature that is huge and has many arguments. This propagates from the hook entry points down into the individual hook implementations themselves. This means that if, for example, we want to change the type of one of these arguments then we have to touch hundreds of locations. The main initial motivation behind this is that we'd like to change the signature of "okfn" so that a socket pointer can be passed in (and reference counted properly) for the sake of using the proper socket context in the case of tunnels whilst not releasing the top level user socket from skb->sk (and thus releasing it's socket memory quota usage) in order to accomodate this. This also makes it clear who actually uses 'okfn', nf_queue(). It is absolutely critical to make this obvious because any user of 'okfn' down in these hook chains have the be strictly audited for escapability. Specifically, escapability of references to objects outside of the packet processing path. And that's exactly what nf_queue() does via it's packet reinjection framework. In fact this points out a bug in Jiri's original attempt to push the socket pointer down through netfilter's okfn. It didn't grab and drop a reference to the socket in net/netfilter/nf_queue.c as needed. Furthermore, so many code paths are simplified, and should in fact be more efficient because we aren't passing in arguments that often are simply not used by the netfilter hook at all. Further simplifications are probably possible, but this series takes care of the main cases. Unfortunately I couldn't convert ebt_do_table() because ebtables is complete and utter crap and uses ebt_do_table() outside of the hook call chains. But that should not be news to anyone. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-04-04Merge tag 'staging-4.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are some staging driver fixes, well, really all just IIO driver fixes, for 4.0-rc6. They fix issues that have been reported with these drivers. All of these patches have been in linux-next for a while" * tag 'staging-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: imu: Use iio_trigger_get for indio_dev->trig assignment iio: adc: vf610: use ADC clock within specification iio/adc/cc10001_adc.c: Fix !HAS_IOMEM build iio: core: Fix double free. iio:inv-mpu6050: Fix inconsistency for the scale channel staging: iio: dummy: Fix undefined symbol build error iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo staging: iio: hmc5843: Set iio name property in sysfs iio: bmc150: change sampling frequency iio: fix drivers that check buffer->scan_mask
2015-04-04Merge tag 'tty-4.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are 3 serial driver fixes for 4.0-rc6. They fix some reported issues with the samsung and fsl_lpuart drivers. All have been in linux-next for a while" * tag 'tty-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: serial: fsl_lpuart: clear receive flag on FIFO flush tty: serial: fsl_lpuart: specify transmit FIFO size serial: samsung: Clear operation mode on UART shutdown
2015-04-04netfilter: Pass nf_hook_state through arpt_do_table().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Pass nf_hook_state through nft_set_pktinfo*().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Pass nf_hook_state through ip6t_do_table().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Pass nf_hook_state through nf_nat_ipv6_{in,out,fn,local_fn}().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Pass nf_hook_state through ipt_do_table().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Pass nf_hook_state through nf_nat_ipv4_{in,out,fn,local_fn}().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Make nf_hookfn use nf_hook_state.David S. Miller
Pass the nf_hook_state all the way down into the hook functions themselves. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Use nf_hook_state in nf_queue_entry.David S. Miller
That way we don't have to reinstantiate another nf_hook_state on the stack of the nf_reinject() path. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04netfilter: Create and use nf_hook_state.David S. Miller
Instead of passing a large number of arguments down into the nf_hook() entry points, create a structure which carries this state down through the hook processing layers. This makes is so that if we want to change the types or signatures of any of these pieces of state, there are less places that need to be changed. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-04x86/alternatives: Fix ALTERNATIVE_2 padding generation properlyBorislav Petkov
Quentin caught a corner case with the generation of instruction padding in the ALTERNATIVE_2 macro: if len(orig_insn) < len(alt1) < len(alt2), then not enough padding gets added and that is not good(tm) as we could overwrite the beginning of the next instruction. Luckily, at the time of this writing, we don't have ALTERNATIVE_2() invocations which have that problem and even if we did, a simple fix would be to prepend the instructions with enough prefixes so that that corner case doesn't happen. However, best it would be if we fixed it properly. See below for a simple, abstracted example of what we're doing. So what we ended up doing is, we compute the max(len(alt1), len(alt2)) - len(orig_insn) and feed that value to the .skip gas directive. The max() cannot have conditionals due to gas limitations, thus the fancy integer math. With this patch, all ALTERNATIVE_2 sites get padded correctly; generating obscure test cases pass too: #define alt_max_short(a, b) ((a) ^ (((a) ^ (b)) & -(-((a) < (b))))) #define gen_skip(orig, alt1, alt2, marker) \ .skip -((alt_max_short(alt1, alt2) - (orig)) > 0) * \ (alt_max_short(alt1, alt2) - (orig)),marker .pushsection .text, "ax" .globl main main: gen_skip(1, 2, 4, 0x09) gen_skip(4, 1, 2, 0x10) ... .popsection Thanks to Quentin for catching it and double-checking the fix! Reported-by: Quentin Casasnovas <quentin.casasnovas@oracle.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150404133443.GE21152@pd.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-04-04doc: Add guest_nice column to example output of `cat /proc/stat'Tobias Klauser
Commit ce0e7b28fb75cb00 ("sched, cpuacct: Fix niced guest time accounting") added the guest_nice column to /proc/stat, but the example output of `cat /proc/stat' in Documentation/filesystems/proc.txt wasn't updated accordingly. Do so now. Cc: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04Documentation/kernel-parameters: Move "eagerfpu" to its right placeBorislav Petkov
We're at least trying to be alphabetically sorted. So move "eagerfpu=" in the vicinity of where it belongs at least. Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04Documentation: gpio: Update ACPI part of the document to mention _DSDMika Westerberg
With ACPI 5.1 _DSD (Device Specific Data) it is now possible to name functions just like Device Tree is doing. Make sure that the documentation mentions _DSD as the recommended way to describe GPIOs in ACPI systems. Reported-by: Darren Hart <dvhart@linux.intel.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04docs/completion.txt: Various tweaks and correctionsJonathan Corbet
Mostly language improvements to the new completions.txt document, but there is also a semantic correction in the description of completion_done() at the very end. Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04doc: completion: context, scope and language fixesNicholas Mc Guire
Fix for imprecise/wrong statements on context in which wait_for_completion*() can be called, updated notes on "going out of scope" problems and some language fixups. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04Documentation:Update Documentation/zh_CN/arm64/memory.txtFu Wei
This is a update of Chinese documentation:Documentation/zh_CN/arm64/memory.txt It is based on the modifications of Documentation/arm64/memory.txt in submission: "08375198", "4edae01e", "a24637d5", "383c2799". Signed-off-by: Fu Wei <wefu@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04Documentation:Update Documentation/zh_CN/arm64/booting.txtFu Wei
This is a update of Chinese documentation: Documentation/zh_CN/arm64/booting.txt It is based on the modifications of Documentation/arm64/booting.txt in submission: "a2c1d73b", "cdd78578", "c218bca7", "63f8344c". Signed-off-by: Fu Wei <wefu@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04Documentation: Chinese translation of arm64/legacy_instructions.txtFu Wei
This is a Chinese translated version of Documentation/arm64/legacy_instructions.txt It is based on the modifications of Documentation/arm64/legacy_instructions.txt in submission: "587064b6", "bd35a4ad", "2d888f48", "c852f320". Signed-off-by: Fu Wei <wefu@redhat.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-04-04ALSA: hda: fix possible null dereferenceSudip Mukherjee
we are dereferencing pcm first then checking pcm. instead now lets put them in same if condition so that pcm is checked first. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04ALSA: usb-audio: don't try to get Benchmark DAC1 sample rateEric Wong
Adding this quirk allows us to avoid the noisy "cannot get freq at ep 0x1" message in dmesg output every time playback starts. This ought to affect other Benchmark DAC1 variations using the same "Microchip Technology, Inc." chip as well, but I have only tested with the "Pre" variant. Signed-off-by: Eric Wong <normalperson@yhbt.net> Cc: Joe Turner <joe@oampo.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04ALSA: hda/realtek - Support Dell headset mode for ALC256Kailang Yang
Dell new platform of ALC256 audio codec. Support headset mode for Dell ALC256 platform. Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04ALSA: hda - Enable widget power saving for Realtek codecsTakashi Iwai
Recent Realtek codecs support the finer power state control on each widget. Let's enable the new feature. Tested-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04ALSA: hda - Sync node attributes at resume from widget power savingTakashi Iwai
So far we assumed that the node attributes like amp values remain during the power state transition of the node itself. While this is true for IDT/STAC codecs I've tested, but some other codecs don't seem behaving in that way. This patch implements a partial sync mechanism specific to the given widget node. Now we've merged the regmap support, and it can be easily written with regcache_sync_region(). Tested-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-04-04Merge branch 'topic/hda-regmap' into for-nextTakashi Iwai
This merges the support of regmap in HD-audio infrastructure. Many in-house cache codes in HD-audio driver are relaced with the more standard regmap base now. Signed-off-by: Takashi Iwai <tiwai@suse.de>