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2015-09-29ALSA: firewire-lib: move PCM substream constraint to AM824 layerTakashi Sakamoto7-9/+29
In IEC 61883-6, PCM frames are transferred in Multi Bit Linear Audio data channel. The data channel transfers 16/20/24 bit PCM samples. Thus, PCM substream has a constrain about it. This commit moves codes related to the constraint from packet streaming layer to AM824 data block processing layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: rename parameter setting function for AM824 with FDF fieldTakashi Sakamoto8-33/+62
The value of FDF field in CIP header is protocol-dependent. Thus, it's better to allow data block processing layer to decide the value in any timing. In AM824 data format, the value of FDF field in CIP header indicates N-flag and Nominal Sampling Frequency Code (sfc). The N-flag is for switching 'Clock-based rate control mode' and 'Command-based rate control mode'. In our implementation, 'Clock-based rate control mode' is just supported. Therefore, When sampling transfer frequency is decided, then the FDF can be set. This commit replaces 'amdtp_stream_set_parameters' with 'amdtp_am824_set_parameters' to set the FDF. This is the same timing to decide the ration between the number of data blocks and the number of PCM frames. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: add data block processing layer for AM824 formatTakashi Sakamoto13-16/+52
This commit adds data block processing layer for AM824 format. The new layer initializes streaming layer with its value for fmt field. Currently, most implementation of data block processing still remains streaming layer. In later commits, these codes will be moved to the layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: rename 'amdtp' to 'amdtp-stream' to prepare for ↵Takashi Sakamoto8-9/+9
functional separation In later commit, data block processing layer will be newly added. This layer will be named as 'amdtp-am824'. This commit renames current amdtp file to amdtp-stream, to distinguish it from the new layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29UBI: return ENOSPC if no enough space availableshengyong2-0/+2
UBI: attaching mtd1 to ubi0 UBI: scanning is finished UBI error: init_volumes: not enough PEBs, required 706, available 686 UBI error: ubi_wl_init: no enough physical eraseblocks (-20, need 1) UBI error: ubi_attach_mtd_dev: failed to attach mtd1, error -12 <= NOT ENOMEM UBI error: ubi_init: cannot attach mtd1 If available PEBs are not enough when initializing volumes, return -ENOSPC directly. If available PEBs are not enough when initializing WL, return -ENOSPC instead of -ENOMEM. Cc: stable@vger.kernel.org Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: David Gstir <david@sigma-star.at>
2015-09-29UBI: Validate data_sizeRichard Weinberger1-0/+5
Make sure that data_size is less than LEB size. Otherwise a handcrafted UBI image is able to trigger an out of bounds memory access in ubi_compare_lebs(). Cc: stable@vger.kernel.org Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: David Gstir <david@sigma-star.at>
2015-09-29UBIFS: Kill unneeded locking in ubifs_init_securityRichard Weinberger1-3/+0
Fixes the following lockdep splat: [ 1.244527] ============================================= [ 1.245193] [ INFO: possible recursive locking detected ] [ 1.245193] 4.2.0-rc1+ #37 Not tainted [ 1.245193] --------------------------------------------- [ 1.245193] cp/742 is trying to acquire lock: [ 1.245193] (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [<ffffffff812b3f69>] ubifs_init_security+0x29/0xb0 [ 1.245193] [ 1.245193] but task is already holding lock: [ 1.245193] (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [<ffffffff81198e7f>] path_openat+0x3af/0x1280 [ 1.245193] [ 1.245193] other info that might help us debug this: [ 1.245193] Possible unsafe locking scenario: [ 1.245193] [ 1.245193] CPU0 [ 1.245193] ---- [ 1.245193] lock(&sb->s_type->i_mutex_key#9); [ 1.245193] lock(&sb->s_type->i_mutex_key#9); [ 1.245193] [ 1.245193] *** DEADLOCK *** [ 1.245193] [ 1.245193] May be due to missing lock nesting notation [ 1.245193] [ 1.245193] 2 locks held by cp/742: [ 1.245193] #0: (sb_writers#5){.+.+.+}, at: [<ffffffff811ad37f>] mnt_want_write+0x1f/0x50 [ 1.245193] #1: (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [<ffffffff81198e7f>] path_openat+0x3af/0x1280 [ 1.245193] [ 1.245193] stack backtrace: [ 1.245193] CPU: 2 PID: 742 Comm: cp Not tainted 4.2.0-rc1+ #37 [ 1.245193] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.7.5-0-ge51488c-20140816_022509-build35 04/01/2014 [ 1.245193] ffffffff8252d530 ffff88007b023a38 ffffffff814f6f49 ffffffff810b56c5 [ 1.245193] ffff88007c30cc80 ffff88007b023af8 ffffffff810a150d ffff88007b023a68 [ 1.245193] 000000008101302a ffff880000000000 00000008f447e23f ffffffff8252d500 [ 1.245193] Call Trace: [ 1.245193] [<ffffffff814f6f49>] dump_stack+0x4c/0x65 [ 1.245193] [<ffffffff810b56c5>] ? console_unlock+0x1c5/0x510 [ 1.245193] [<ffffffff810a150d>] __lock_acquire+0x1a6d/0x1ea0 [ 1.245193] [<ffffffff8109fa78>] ? __lock_is_held+0x58/0x80 [ 1.245193] [<ffffffff810a1a93>] lock_acquire+0xd3/0x270 [ 1.245193] [<ffffffff812b3f69>] ? ubifs_init_security+0x29/0xb0 [ 1.245193] [<ffffffff814fc83b>] mutex_lock_nested+0x6b/0x3a0 [ 1.245193] [<ffffffff812b3f69>] ? ubifs_init_security+0x29/0xb0 [ 1.245193] [<ffffffff812b3f69>] ? ubifs_init_security+0x29/0xb0 [ 1.245193] [<ffffffff812b3f69>] ubifs_init_security+0x29/0xb0 [ 1.245193] [<ffffffff8128e286>] ubifs_create+0xa6/0x1f0 [ 1.245193] [<ffffffff81198e7f>] ? path_openat+0x3af/0x1280 [ 1.245193] [<ffffffff81195d15>] vfs_create+0x95/0xc0 [ 1.245193] [<ffffffff8119929c>] path_openat+0x7cc/0x1280 [ 1.245193] [<ffffffff8109ffe3>] ? __lock_acquire+0x543/0x1ea0 [ 1.245193] [<ffffffff81088f20>] ? sched_clock_cpu+0x90/0xc0 [ 1.245193] [<ffffffff81088c00>] ? calc_global_load_tick+0x60/0x90 [ 1.245193] [<ffffffff81088f20>] ? sched_clock_cpu+0x90/0xc0 [ 1.245193] [<ffffffff811a9cef>] ? __alloc_fd+0xaf/0x180 [ 1.245193] [<ffffffff8119ac55>] do_filp_open+0x75/0xd0 [ 1.245193] [<ffffffff814ffd86>] ? _raw_spin_unlock+0x26/0x40 [ 1.245193] [<ffffffff811a9cef>] ? __alloc_fd+0xaf/0x180 [ 1.245193] [<ffffffff81189bd9>] do_sys_open+0x129/0x200 [ 1.245193] [<ffffffff81189cc9>] SyS_open+0x19/0x20 [ 1.245193] [<ffffffff81500717>] entry_SYSCALL_64_fastpath+0x12/0x6f While the lockdep splat is a false positive, becuase path_openat holds i_mutex of the parent directory and ubifs_init_security() tries to acquire i_mutex of a new inode, it reveals that taking i_mutex in ubifs_init_security() is in vain because it is only being called in the inode allocation path and therefore nobody else can see the inode yet. Cc: stable@vger.kernel.org # 3.20- Reported-and-tested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-and-tested-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: dedekind1@gmail.com
2015-09-29ALSA: firewire-lib: add support arbitrary value for fmt/fdf fields in CIP headerTakashi Sakamoto2-8/+25
Some vendor specific protocol uses its own value for fmt/fdf fields in CIP header. This commit support to set arbitrary values for the fields. In IEC 61883-6, NO-DATA code is defined for FDF field. A packet with this code includes no data even if it includes some data blocks. This commit still leaves a condition to handle this special packet. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: add helper functions as interfaces between packet ↵Takashi Sakamoto1-27/+55
streaming layer and data block processing layer ALSA PCM framework uses PCM buffer with a concept of 'period' to synchronize userspace operations to hardware for nearly-realtime processing. Each driver implements snd_pcm_period_elapsed() to tell across of the period boundary to ALSA PCM middleware. To call the function, some drivers utilize hardware interrupt handlers, the others count handled PCM frames. Drivers for sound units on IEEE 1394 bus are the latter. They use two buffers; PCM buffer and DMA buffer for IEEE 1394 isochronous packet. PCM frames are copied between these two buffers and 'amdtp_stream' structure counts the handled PCM frames. Then, snd_pcm_period_elapsed() is called if required. Essentially, packet streaming layer should not be responsible for PCM frame processing. The PCM frame processing should be handled in each data block processing layer as a result of handling data blocks. Although, PCM frame counting is a common work for all of protocols which ALSA firewire stack is going to support. This commit adds two new helper functions as interfaces between packet streaming layer to data block processing layer. In future, each data block processing layer implements these functions. The packet streaming layer calls data block processing layer per packet by calling the functions. The data block processing layer processes data blocks and PCM frames, and returns the number of processed PCM frames. Then the packet streaming layer calculates handled PCM frames and calls snd_pcm_period_elapsed(). Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: add a member of frame_multiplier instead of ↵Takashi Sakamoto2-11/+14
double_pcm_frames In future commit, interface between data block processing layer and packet stream processing layer is defined. These two layers communicate the number of data blocks and the number of PCM frames. The data block processing layer has a responsibility for calculating the number of PCM frames. Therefore, 'dual wire' of Dice quirk should be handled in data block processing layer. This commit adds a member of 'frame_multiplier'. This member represents the ratio of the number of PCM frames against the number of data blocks. Usually, the value of this member is 1, while it's 2 in Dice's 'dual wire'. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: add an argument for Dice's dual wire modeTakashi Sakamoto6-12/+17
In IEC 61883-6, one data block represents one event. In ALSA, the event is one PCM frame. Therefore, when processing one data block, current implementation counts one PCM frame. On the other hand, Dice platform has a quirk called as 'dual wire' at higher sampling rate. In detail, see comment of commit 6eb6c81eee2a ("ALSA: dice: Split stream functionality into a file"). Currently, to handle this quirk, AMDTP stream structure has a 'double_pcm_frames' member. When this is enabled, two PCM frames are counted. Each driver set this flag by accessing the structure member directly. In future commit, some members related to AM824 data block will be moved to specific structure, to separate packet streaming layer and data block processing layer. The access will be limited by opaque pointer. For this reason, this commit adds an argument into amdtp_stream_set_parameter() to set the flag. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: return error code when amdtp_stream_set_parameters() ↵Takashi Sakamoto6-22/+37
detects error Currently, amdtp_stream_set_parameters() returns no error even if wrong arguments are given. This is not good for streaming layer because drivers can continue processing ignoring capability of streaming layer. This commit changes this function to return error code. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29ALSA: firewire-lib: arrange structure for AMDTP streamTakashi Sakamoto1-27/+31
In later commit, some members related to AM824 data format will be moved from AMDTP stream structure to data block structure. This commit is a preparation for it. Additionally, current layout of AMDTP stream structure is a bit mess by several extensions. This commit also arranges the layout. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-29mmc: pxamci: fix card detect with slot-gpio APIRobert Jarzmik1-44/+22
Move pxamci to mmc slot-gpio API to fix interrupt request. It fixes the case where the card detection is on a gpio expander, on I2C for example on zylonite board. In this case, the card detect netsted interrupt is called from a threaded interrupt. The request_irq() fails, because a hard irq cannot be a nested interrupt from a threaded interrupt (set __setup_irq()). This was tested on zylonite and mioa701 boards. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-09-29mmc: sunxi: Fix clk-delay settingsHans de Goede1-14/+39
In recent allwinner kernel sources the mmc clk-delay settings have been slightly tweaked, and for sun9i they are completely different then what we are using. This commit brings us in sync with what allwinner does, fixing problems accessing sdcards on some A33 devices (and likely others). For pre sun9i hardware this makes the following changes: -At 400Khz change the sample delay from 7 to 0 (introduced in A31 sdk) -At 50 Mhz change the sample delay from 5 to 4 (introduced in A23 sdk) This also drops the clk-delay calculation for clocks > 50 MHz, we do not need this as we've: mmc->f_max = 50000000, and the delays in the old code were not correct (at 100 MHz the delay must be a multiple of 60, at 200 MHz a multiple of 120). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-09-29mmc: core: Don't return an error for CD/WP GPIOs when GPIOLIB is unsetUlf Hansson1-2/+2
When CONFIG_GPIOLIB is unset, its stubs will return -ENOSYS. That means when the mmc core parses DT for CD/WP GPIOs via mmc_of_parse(), -ENOSYS becomes propagated to the caller. Typically this means that the mmc host driver fails to probe. As the CD/WP GPIOs are already treated as optional, let's extend that to cover the case when CONFIG_GPIOLIB is unset. Reported-by: Michal Simek <michal.simek@xilinx.com> Fixes: 16b23787fc70 ("mmc: sdhci-of-arasan: Call OF parsing for MMC") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
2015-09-29Merge tag 'keys-fixes-20150925' of ↵James Morris5-30/+82
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into for-linus Keyrings fixes from David Howells, for current Linus.
2015-09-29net: sctp: Don't use 64 kilobyte lookup table for four elementsDenys Vlasenko1-9/+11
Seemingly innocuous sctp_trans_state_to_prio_map[] array is way bigger than it looks, since "[SCTP_UNKNOWN] = 2" expands into "[0xffff] = 2" ! This patch replaces it with switch() statement. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Vlad Yasevich <vyasevich@gmail.com> CC: Neil Horman <nhorman@tuxdriver.com> CC: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> CC: linux-sctp@vger.kernel.org CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29l2tp: protect tunnel->del_work by ref_countAlexander Couzens1-2/+9
There is a small chance that tunnel_free() is called before tunnel->del_work scheduled resulting in a zero pointer dereference. Signed-off-by: Alexander Couzens <lynxis@fe80.eu> Acked-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29net/ibm/emac: bump version numbers for correct work with ethtoolIvan Mikhaylov1-3/+3
The size of the MAC register dump used to be the size specified by the reg property in the device tree. Userland has no good way of finding out that size, and it was not specified consistently for each MAC type, so ethtool would end up printing junk at the end of the register dump if the device tree didn't match the size it assumed. Using the new version numbers indicates unambiguously that the size of the MAC register dump is dependent only on the MAC type. Fixes: 5369c71f7ca2 ("net/ibm/emac: fix size of emac dump memory areas") Signed-off-by: Ivan Mikhaylov <ivan@ru.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29Merge branch 'sctp-accept-deadlock'David S. Miller1-20/+24
Karl Heiss says: ==================== sctp: Fix SCTP deadlock These patches fix a deadlock during accept() of an SCTP connection. The first patch fixes whitespace issues. The second patch actually fixes the deadlock race. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29sctp: Prevent soft lockup when sctp_accept() is called during a timeout eventKarl Heiss1-19/+23
A case can occur when sctp_accept() is called by the user during a heartbeat timeout event after the 4-way handshake. Since sctp_assoc_migrate() changes both assoc->base.sk and assoc->ep, the bh_sock_lock in sctp_generate_heartbeat_event() will be taken with the listening socket but released with the new association socket. The result is a deadlock on any future attempts to take the listening socket lock. Note that this race can occur with other SCTP timeouts that take the bh_lock_sock() in the event sctp_accept() is called. BUG: soft lockup - CPU#9 stuck for 67s! [swapper:0] ... RIP: 0010:[<ffffffff8152d48e>] [<ffffffff8152d48e>] _spin_lock+0x1e/0x30 RSP: 0018:ffff880028323b20 EFLAGS: 00000206 RAX: 0000000000000002 RBX: ffff880028323b20 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff880028323be0 RDI: ffff8804632c4b48 RBP: ffffffff8100bb93 R08: 0000000000000000 R09: 0000000000000000 R10: ffff880610662280 R11: 0000000000000100 R12: ffff880028323aa0 R13: ffff8804383c3880 R14: ffff880028323a90 R15: ffffffff81534225 FS: 0000000000000000(0000) GS:ffff880028320000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 00000000006df528 CR3: 0000000001a85000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffff880616b70000, task ffff880616b6cab0) Stack: ffff880028323c40 ffffffffa01c2582 ffff880614cfb020 0000000000000000 <d> 0100000000000000 00000014383a6c44 ffff8804383c3880 ffff880614e93c00 <d> ffff880614e93c00 0000000000000000 ffff8804632c4b00 ffff8804383c38b8 Call Trace: <IRQ> [<ffffffffa01c2582>] ? sctp_rcv+0x492/0xa10 [sctp] [<ffffffff8148c559>] ? nf_iterate+0x69/0xb0 [<ffffffff814974a0>] ? ip_local_deliver_finish+0x0/0x2d0 [<ffffffff8148c716>] ? nf_hook_slow+0x76/0x120 [<ffffffff814974a0>] ? ip_local_deliver_finish+0x0/0x2d0 [<ffffffff8149757d>] ? ip_local_deliver_finish+0xdd/0x2d0 [<ffffffff81497808>] ? ip_local_deliver+0x98/0xa0 [<ffffffff81496ccd>] ? ip_rcv_finish+0x12d/0x440 [<ffffffff81497255>] ? ip_rcv+0x275/0x350 [<ffffffff8145cfeb>] ? __netif_receive_skb+0x4ab/0x750 ... With lockdep debugging: ===================================== [ BUG: bad unlock balance detected! ] ------------------------------------- CslRx/12087 is trying to release lock (slock-AF_INET) at: [<ffffffffa01bcae0>] sctp_generate_timeout_event+0x40/0xe0 [sctp] but there are no more locks to release! other info that might help us debug this: 2 locks held by CslRx/12087: #0: (&asoc->timers[i]){+.-...}, at: [<ffffffff8108ce1f>] run_timer_softirq+0x16f/0x3e0 #1: (slock-AF_INET){+.-...}, at: [<ffffffffa01bcac3>] sctp_generate_timeout_event+0x23/0xe0 [sctp] Ensure the socket taken is also the same one that is released by saving a copy of the socket before entering the timeout event critical section. Signed-off-by: Karl Heiss <kheiss@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29sctp: Whitespace fixKarl Heiss1-2/+2
Fix indentation in sctp_generate_heartbeat_event. Signed-off-by: Karl Heiss <kheiss@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29i40e/i40evf: check for stopped admin queueMitch Williams2-0/+18
It's possible that while we are waiting for the spinlock, another entity (that owns the spinlock) has shut down the admin queue. If we then attempt to use the queue, we will panic. Add a check for this condition on the receive side. This matches an existing check on the send queue side. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29i40e: fix VLAN inside VXLANJesse Brandeburg1-1/+2
Previously to this patch, the hardware was removing VLAN tags from the inner header of VXLAN packets. The hardware configuration can be changed to leave the packet alone since that is what the linux stack expects for this type of VLAN in VXLAN packet. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-29Input: elan_i2c - add all valid ic type for i2c/smbusduson1-1/+10
Signed-off-by: Duson Lin <dusonlin@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-29Input: zhenhua - ensure we have BITREVERSEAndrew Morton1-0/+1
It uses bitrev8(), so it must ensure that lib/bitrev.o gets included in vmlinux. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-29Input: omap4-keypad - fix memory leakSudip Mukherjee1-1/+1
If omap4_keypad_parse_dt() fails we returned the error code but we missed releasing keypad_data. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-28Merge branch 'stable' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull arch/tile bugfix from Chris Metcalf: "This fixes a bug in 'make allmodconfig'" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: fix build failure
2015-09-28tile: fix build failureSudip Mukherjee1-0/+1
When building with allmodconfig the build was failing with the error: arch/tile/kernel/usb.c:70:1: warning: data definition has no type or storage class [enabled by default] arch/tile/kernel/usb.c:70:1: error: type defaults to 'int' in declaration of 'arch_initcall' [-Werror=implicit-int] arch/tile/kernel/usb.c:70:1: warning: parameter names (without types) in function declaration [enabled by default] arch/tile/kernel/usb.c:63:19: warning: 'tilegx_usb_init' defined but not used [-Wunused-function] Include linux/module.h to resolve the build failure. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-09-28drm/i915: Consider HW CSB write pointer before resetting the sw read pointerMichel Thierry2-7/+34
A previous commit resets the Context Status Buffer (CSB) read pointer in ring init commit c0a03a2e4c4e ("drm/i915: Reset CSB read pointer in ring init") This is generally correct, but this pointer is not reset after suspend/resume in some platforms (cht). In this case, the driver should read the register value instead of resetting the sw read counter to 0. Otherwise we process old events, leading to unwanted pre-emptions or something worse. But in other platforms (bdw) and also during GPU reset or power up, the CSBWP is reset to 0x7 (an invalid number), and in this case the read pointer should be set to 5 (the interrupt code will increment this counter one more time, and will start reading from CSB[0]). v2: When the CSB registers are reset, the read pointer needs to be set to 5, otherwise the first write (CSB[0]) won't be read (Mika). Replace magic numbers with GEN8_CSB_ENTRIES (6) and GEN8_CSB_PTR_MASK (0x07). Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: stable@vger.kernel.org # v4.0+ Signed-off-by: Lei Shen <lei.shen@intel.com> Signed-off-by: Deepak S <deepak.s@intel.com> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-09-28ALSA: usb-audio: harmless underflow in snd_audigy2nx_led_put()Dan Carpenter1-1/+1
We want to verify that "value" is either zero or one, so we test if it is greater than one. Unfortunately, this is a signed int so it could also be negative. I think this is harmless but it introduces a static checker warning. Let's make "value" unsigned. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-28Revert "KVM: x86: zero kvmclock_offset when vcpu0 initializes kvmclock ↵Radim Krčmář2-4/+1
system MSR" Shifting pvclock_vcpu_time_info.system_time on write to KVM system time MSR is a change of ABI. Probably only 2.6.16 based SLES 10 breaks due to its custom enhancements to kvmclock, but KVM never declared the MSR only for one-shot initialization. (Doc says that only one write is needed.) This reverts commit b7e60c5aedd2b63f16ef06fde4f81ca032211bc5. And adds a note to the definition of PVCLOCK_COUNTS_FROM_ZERO. Signed-off-by: Radim Krčmář <rkrcmar@redhat.com> Acked-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-28ALSA: hda - Fix typos in snd_hdac_regmap_*() documentsTakashi Iwai1-2/+2
Fixes the wrong reference names to regmap amp functions. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-28watchdog: iTCO: Fix dependencies on I2CGuenter Roeck1-1/+2
If I2C is built as module, the iTCO watchdog driver must be built as module as well. I2C_I801 must only be selected if I2C is configured. This fixes the following build errors, seen if I2C=m and ITCO_WDT=y. i2c-i801.c:(.text+0x2bf055): undefined reference to `i2c_del_adapter' i2c-i801.c:(.text+0x2c13e0): undefined reference to `i2c_add_adapter' i2c-i801.c:(.text+0x2c17bd): undefined reference to `i2c_new_device' Fixes: 2a7a0e9bf7b3 ("watchdog: iTCO_wdt: Add support for TCO on Intel Sunrisepoint") Reviewed-by: Matt Fleming <matt.fleming@intel.com> Cc: Lee Jones <lee.jones@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-28watchdog: bcm2835: Fix poweroff behaviourNoralf Trønnes1-2/+8
Currently poweroff/halt results in a reboot on the Raspberry Pi. The firmware uses the RSTS register to know which partiton to boot from. The partiton value is spread into bits 0, 2, 4, 6, 8, 10. Partiton 63 is a special partition used by the firmware to indicate halt. The firmware made this change in 19 Aug 2013 and was matched by the downstream commit: Changes for new NOOBS multi partition booting from gsh Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-28watchdog: Fix module autoload for OF platform driverLuis de Bethencourt3-0/+3
These platform drivers have a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luis@debethencourt.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-28drm/i915/skl: Don't call intel_prepare_ddi when encoder list isn't yet ↵Rodrigo Vivi1-1/+2
initialized. In case something goes wrong with power well initialization we were calling intel_prepare_ddi during boot while encoder list isnt't initilized. [ 9.618747] i915 0000:00:02.0: Invalid ROM contents [ 9.631446] [drm] failed to find VBIOS tables [ 9.720036] BUG: unable to handle kernel NULL pointer dereference at 00000000 00000058 [ 9.721986] IP: [<ffffffffa014eb72>] ddi_get_encoder_port+0x82/0x190 [i915] [ 9.723736] PGD 0 [ 9.724286] Oops: 0000 [#1] PREEMPT SMP [ 9.725386] Modules linked in: intel_powerclamp snd_hda_intel(+) coretemp crc 32c_intel snd_hda_codec snd_hda_core serio_raw snd_pcm snd_timer i915(+) parport _pc parport pinctrl_sunrisepoint pinctrl_intel nfsd nfs_acl [ 9.730635] CPU: 0 PID: 497 Comm: systemd-udevd Not tainted 4.3.0-rc2-eywa-10 967-g72de2cfd-dirty #2 [ 9.732785] Hardware name: Intel Corporation Cannonlake Client platform/Skyla ke DT DDR4 RVP8, BIOS CNLSE2R1.R00.X021.B00.1508040310 08/04/2015 [ 9.735785] task: ffff88008a704700 ti: ffff88016a1ac000 task.ti: ffff88016a1a c000 [ 9.737584] RIP: 0010:[<ffffffffa014eb72>] [<ffffffffa014eb72>] ddi_get_enco der_port+0x82/0x190 [i915] [ 9.739934] RSP: 0000:ffff88016a1af710 EFLAGS: 00010296 [ 9.741184] RAX: 000000000000004e RBX: ffff88008a9edc98 RCX: 0000000000000001 [ 9.742934] RDX: 000000000000004e RSI: ffffffff81fc1e82 RDI: 00000000ffffffff [ 9.744634] RBP: ffff88016a1af730 R08: 0000000000000000 R09: 0000000000000578 [ 9.746333] R10: 0000000000001065 R11: 0000000000000578 R12: fffffffffffffff8 [ 9.748033] R13: ffff88016a1af7a8 R14: ffff88016a1af794 R15: 0000000000000000 [ 9.749733] FS: 00007eff2e1e07c0(0000) GS:ffff88016fc00000(0000) knlGS:00000 00000000000 [ 9.751683] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.753083] CR2: 0000000000000058 CR3: 000000016922b000 CR4: 00000000003406f0 [ 9.754782] Stack: [ 9.755332] ffff88008a9edc98 ffff88008a9ed800 ffffffffa01d07b0 00000000fffb9 09e [ 9.757232] ffff88016a1af7d8 ffffffffa0154ea7 0000000000000246 ffff88016a370 080 [ 9.759182] ffff88016a370080 ffff88008a9ed800 0000000000000246 ffff88008a9ed c98 [ 9.761132] Call Trace: [ 9.761782] [<ffffffffa0154ea7>] intel_prepare_ddi+0x67/0x860 [i915] [ 9.763332] [<ffffffff81a56996>] ? _raw_spin_unlock_irqrestore+0x26/0x40 [ 9.765031] [<ffffffffa00fad01>] ? gen9_read32+0x141/0x360 [i915] [ 9.766531] [<ffffffffa00b43e1>] skl_set_power_well+0x431/0xa80 [i915] [ 9.768181] [<ffffffffa00b4a63>] skl_power_well_enable+0x13/0x20 [i915] [ 9.769781] [<ffffffffa00b2188>] intel_power_well_enable+0x28/0x50 [i915] [ 9.771481] [<ffffffffa00b4d52>] intel_display_power_get+0x92/0xc0 [i915] [ 9.773180] [<ffffffffa00b4fcb>] intel_display_set_init_power+0x3b/0x40 [i91 5] [ 9.774980] [<ffffffffa00b5170>] intel_power_domains_init_hw+0x120/0x520 [i9 15] [ 9.776780] [<ffffffffa0194c61>] i915_driver_load+0xb21/0xf40 [i915] So let's protect this case. My first attempt was to remove the intel_prepare_ddi, but Daniel had pointed out this is really needed to restore those registers values. And Imre pointed out that this case was without the flag protection and this was actually where things were going bad. So I've just checked and this indeed solves my issue. The regressing intel_prepare_ddi call was added in commit 1d2b9526a790d55b7ae870934a74937081f62de2 Author: Damien Lespiau <damien.lespiau@intel.com> Date: Fri Mar 6 18:50:53 2015 +0000 drm/i915/skl: Restore the DDI translation tables when enabling PW1 Cc: Imre Deak <imre.deak@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> [Jani: regression reference] Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-09-28m68k/defconfig: Update defconfigs for v4.3-rc1Geert Uytterhoeven12-12/+96
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2015-09-28m68k: Define asmlinkage_protectAndreas Schwab1-0/+30
Make sure the compiler does not modify arguments of syscall functions. This can happen if the compiler generates a tailcall to another function. For example, without asmlinkage_protect sys_openat is compiled into this function: sys_openat: clr.l %d0 move.w 18(%sp),%d0 move.l %d0,16(%sp) jbra do_sys_open Note how the fourth argument is modified in place, modifying the register %d4 that gets restored from this stack slot when the function returns to user-space. The caller may expect the register to be unmodified across system calls. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org
2015-09-28m68k: Wire up membarrierGeert Uytterhoeven3-1/+3
$ ./membarrier_test membarrier MEMBARRIER_CMD_QUERY syscall available. membarrier: MEMBARRIER_CMD_SHARED success. membarrier: tests done! $ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@uclinux.org>
2015-09-28m68k: Wire up userfaultfdGeert Uytterhoeven3-1/+3
$ ./userfaultfd 10 99 nr_pages: 2560, nr_pages_per_cpu: 2560 bounces: 98, mode: racing, userfaults: 1121 bounces: 97, mode: rnd, userfaults: 977 bounces: 96, mode:, userfaults: 1119 bounces: 95, mode: rnd racing ver poll, userfaults: 1040 bounces: 94, mode: racing ver poll, userfaults: 1022 bounces: 93, mode: rnd ver poll, userfaults: 946 bounces: 92, mode: ver poll, userfaults: 1115 bounces: 91, mode: rnd racing poll, userfaults: 977 bounces: 90, mode: racing poll, userfaults: 899 bounces: 89, mode: rnd poll, userfaults: 881 bounces: 88, mode: poll, userfaults: 1069 bounces: 87, mode: rnd racing ver, userfaults: 1114 bounces: 86, mode: racing ver, userfaults: 1109 bounces: 85, mode: rnd ver, userfaults: 1165 bounces: 84, mode: ver, userfaults: 1107 bounces: 83, mode: rnd racing, userfaults: 1134 bounces: 82, mode: racing, userfaults: 1105 bounces: 81, mode: rnd, userfaults: 1323 bounces: 80, mode:, userfaults: 1103 bounces: 79, mode: rnd racing ver poll, userfaults: 909 bounces: 78, mode: racing ver poll, userfaults: 1095 bounces: 77, mode: rnd ver poll, userfaults: 951 bounces: 76, mode: ver poll, userfaults: 1099 bounces: 75, mode: rnd racing poll, userfaults: 1035 bounces: 74, mode: racing poll, userfaults: 1097 bounces: 73, mode: rnd poll, userfaults: 1159 bounces: 72, mode: poll, userfaults: 1042 bounces: 71, mode: rnd racing ver, userfaults: 848 bounces: 70, mode: racing ver, userfaults: 1093 bounces: 69, mode: rnd ver, userfaults: 892 bounces: 68, mode: ver, userfaults: 1091 bounces: 67, mode: rnd racing, userfaults: 1219 bounces: 66, mode: racing, userfaults: 1089 bounces: 65, mode: rnd, userfaults: 988 bounces: 64, mode:, userfaults: 1087 bounces: 63, mode: rnd racing ver poll, userfaults: 882 bounces: 62, mode: racing ver poll, userfaults: 984 bounces: 61, mode: rnd ver poll, userfaults: 701 bounces: 60, mode: ver poll, userfaults: 1071 bounces: 59, mode: rnd racing poll, userfaults: 1137 bounces: 58, mode: racing poll, userfaults: 1032 bounces: 57, mode: rnd poll, userfaults: 911 bounces: 56, mode: poll, userfaults: 1079 bounces: 55, mode: rnd racing ver, userfaults: 1106 bounces: 54, mode: racing ver, userfaults: 1077 bounces: 53, mode: rnd ver, userfaults: 886 bounces: 52, mode: ver, userfaults: 1075 bounces: 51, mode: rnd racing, userfaults: 1101 bounces: 50, mode: racing, userfaults: 1073 bounces: 49, mode: rnd, userfaults: 1070 bounces: 48, mode:, userfaults: 1071 bounces: 47, mode: rnd racing ver poll, userfaults: 1077 bounces: 46, mode: racing ver poll, userfaults: 910 bounces: 45, mode: rnd ver poll, userfaults: 1063 bounces: 44, mode: ver poll, userfaults: 1028 bounces: 43, mode: rnd racing poll, userfaults: 1043 bounces: 42, mode: racing poll, userfaults: 1065 bounces: 41, mode: rnd poll, userfaults: 912 bounces: 40, mode: poll, userfaults: 1063 bounces: 39, mode: rnd racing ver, userfaults: 880 bounces: 38, mode: racing ver, userfaults: 1061 bounces: 37, mode: rnd ver, userfaults: 1144 bounces: 36, mode: ver, userfaults: 1059 bounces: 35, mode: rnd racing, userfaults: 967 bounces: 34, mode: racing, userfaults: 1057 bounces: 33, mode: rnd, userfaults: 1076 bounces: 32, mode:, userfaults: 1055 bounces: 31, mode: rnd racing ver poll, userfaults: 997 bounces: 30, mode: racing ver poll, userfaults: 1053 bounces: 29, mode: rnd ver poll, userfaults: 968 bounces: 28, mode: ver poll, userfaults: 978 bounces: 27, mode: rnd racing poll, userfaults: 1008 bounces: 26, mode: racing poll, userfaults: 1049 bounces: 25, mode: rnd poll, userfaults: 900 bounces: 24, mode: poll, userfaults: 1047 bounces: 23, mode: rnd racing ver, userfaults: 988 bounces: 22, mode: racing ver, userfaults: 1045 bounces: 21, mode: rnd ver, userfaults: 1027 bounces: 20, mode: ver, userfaults: 1043 bounces: 19, mode: rnd racing, userfaults: 1017 bounces: 18, mode: racing, userfaults: 1041 bounces: 17, mode: rnd, userfaults: 979 bounces: 16, mode:, userfaults: 1039 bounces: 15, mode: rnd racing ver poll, userfaults: 1134 bounces: 14, mode: racing ver poll, userfaults: 1037 bounces: 13, mode: rnd ver poll, userfaults: 1046 bounces: 12, mode: ver poll, userfaults: 1035 bounces: 11, mode: rnd racing poll, userfaults: 1060 bounces: 10, mode: racing poll, userfaults: 1033 bounces: 9, mode: rnd poll, userfaults: 1003 bounces: 8, mode: poll, userfaults: 929 bounces: 7, mode: rnd racing ver, userfaults: 964 bounces: 6, mode: racing ver, userfaults: 1029 bounces: 5, mode: rnd ver, userfaults: 1053 bounces: 4, mode: ver, userfaults: 1027 bounces: 3, mode: rnd racing, userfaults: 863 bounces: 2, mode: racing, userfaults: 1025 bounces: 1, mode: rnd, userfaults: 1043 bounces: 0, mode:, userfaults: 950 Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@uclinux.org>
2015-09-28m68k: Wire up direct socket callsGeert Uytterhoeven3-2/+35
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@uclinux.org>
2015-09-28Merge branch 'for-mingo' of ↵Ingo Molnar2-6/+10
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent Pull RCU fixes from Paul E. McKenney, for two regressions introduced in this merge window: - Fix bug with recent GCCs. - Fix false positive lockdep splat. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-09-28Input: serio - fix blocking of parportSudip Mukherjee1-0/+1
If parkbd_allocate_serio() fails to allocate memory we are releasing the parport but we missed unregistering the device. As a result this device with exclusive access to that parport remains registered. And no other device will be able to use that parport even though this driver has failed to load. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-09-28Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds14-81/+290
Pull MIPS fixes from Ralf Baechle: - Properly setup irq handling for ATH79 platforms - Fix bootmem mapstart calculation for contiguous maps - Handle little endian and older CPUs correct in BPF - Fix console for Fulong 2E systems - Handle FTLB correctly on R6 CPUs - Fixes for CM, GIC and MAAR support code * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Initialise MAARs on secondary CPUs MIPS: print MAAR configuration during boot MIPS: mm: compile maar_init unconditionally irqchip: mips-gic: Fix pending & mask reads for MIPS64 with 32b GIC. irqchip: mips-gic: Convert CPU numbers to VP IDs. MIPS: CM: Provide a function to map from CPU to VP ID. MIPS: Fix FTLB detection for R6 MIPS: cpu-features: Add cpu_has_ftlb MIPS: ATH79: Add irq chip ar7240-misc-intc MIPS: ATH79: Set missing irq ack handler for ar7100-misc-intc irq chip MIPS: BPF: Fix build on pre-R2 little endian CPUs MIPS: BPF: Avoid unreachable code on little endian MIPS: bootmem: Fix mapstart calculation for contiguous maps MIPS: Fix console output for Fulong2e system
2015-09-27Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds18-96/+214
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "Another pile of fixes for perf: - Plug overflows and races in the core code - Sanitize the flow of the perf syscall so we error out before handling the more complex and hard to undo setups - Improve and fix Broadwell and Skylake hardware support - Revert a fix which broke what it tried to fix in perf tools - A couple of smaller fixes in various places of perf tools" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools: Fix copying of /proc/kcore perf intel-pt: Remove no_force_psb from documentation perf probe: Use existing routine to look for a kernel module by dso->short_name perf/x86: Change test_aperfmperf() and test_intel() to static tools lib traceevent: Fix string handling in heterogeneous arch environments perf record: Avoid infinite loop at buildid processing with no samples perf: Fix races in computing the header sizes perf: Fix u16 overflows perf: Restructure perf syscall point of no return perf/x86/intel: Fix Skylake FRONTEND MSR extrareg mask perf/x86/intel/pebs: Add PEBS frontend profiling for Skylake perf/x86/intel: Make the CYCLE_ACTIVITY.* constraint on Broadwell more specific perf tools: Bool functions shouldn't return -1 tools build: Add test for presence of __get_cpuid() gcc builtin tools build: Add test for presence of numa_num_possible_cpus() in libnuma Revert "perf symbols: Fix mismatched declarations for elf_getphdrnum" perf stat: Fix per-pkg event reporting bug
2015-09-27Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds1-3/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Thomas Gleixner: "A single bug fix for the scheduler to prevent dequeueing of the idle task when setting the cpus allowed mask" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix crash trying to dequeue/enqueue the idle thread
2015-09-27Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Thomas Gleixner: "A single bugfix for lockdep to preserve the pinning counter when rebuilding the lock stack" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/lockdep: Fix hlock->pin_count reset on lock stack rebuilds
2015-09-27Merge branch 'turbostat' of ↵Rafael J. Wysocki1-5/+34
https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux into pm-tools Pull turbostat updates for v4.3 from Len Brown. * 'turbostat' of https://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbosat: update version number tools/power turbostat: SKL: Adjust for TSC difference from base frequency tools/power turbostat: KNL workaround for %Busy and Avg_MHz tools/power turbostat: IVB Xeon: fix --debug regression
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