1. 28 Mar, 2017 6 commits
    • Takashi Sakamoto's avatar
      ALSA: firewire-lib: add support for source packet header field in CIP header · 9863874f
      Takashi Sakamoto authored
      
      
      In IEC 61883-1, CIP headers can have a SPH field. When a packet has 1 in
      SPH field of its CIP header, the packet has a source packet headers. A
      source packet header consists of 32 bit field (= 1 quadlet) and it
      transfers time stamp, which is the same value as the lower 25 bits of the
      IEEE 1394 CYCLE_TIMER register and the rest is zero.
      
      This commit just supports source packet header field because IEC 61883-1
      includes ambiguity the position of this header and its count. Each
      protocol layer is allowed to have actual implementation according its
      requirements.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      9863874f
    • Takashi Sakamoto's avatar
      ALSA: firewire-lib: record cycle count for the first packet · a04513f8
      Takashi Sakamoto authored
      
      
      Currently, packet streaming layer passes generated SYT value to data block
      processing layer. However, this is not enough in a case that the data block
      processing layer generates time stamps by its own ways.
      
      For out-packet stream, the packet streaming layer guarantees 8,000 times
      calls of data block processing layers per sec. Therefore, when cycle count
      of the first packet is recorded, data block processing layers can calculate
      own time stamps with the recorded value.
      
      For the reason, this commit allows packet streaming layer to record the
      first cycle count. Each data block processing layer can read the count by
      accessing a member of structure for packet streaming layer.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      a04513f8
    • Takashi Sakamoto's avatar
      ALSA: firewire-motu: add an abstraction layer for three types of protocols · 59f6482c
      Takashi Sakamoto authored
      
      
      In an aspect of used protocols to communicate, models of MOTU FireWire
      units are categorized to three generations.
      
      This commit adds an abstraction layer of the protocols for features
      related to packet streaming functionality. This layer includes 5
      operations.
      
      When configuring packet streaming functionality with sampling rate and
      sampling transmission frequency, .get_clock_rate and .set_clock_rate are
      called with proper arguments. MOTU FireWire series supports up to 192.0kHz.
      
      When checking current source of sampling clock (not clock for packetization
      layer), .get_clock_source is used. Enumeration is added to represent the
      sources supported by this series. This operation can be used to expose
      available sampling rate to user space applications when the unit is
      configured to use any input signal as source of clock instead of crystal
      clock.
      
      In the protocols, the path between packet processing layer and digital
      signal processing layer can be controlled. This looks a functionality to
      'mute' the unit. For this feature, .switch_fetching_mode is added. This
      can be used to suppress noises every time packet streaming starts/stops.
      
      In a point of the size of data blocks at a certain sampling transmission
      frequency, the most units accept several modes. This is due to usage of
      optical interfaces. The size differs depending on which modes are
      configured to the interfaces; None, S/PDIF and ADAT. Additionally, format
      of packet is different depending on protocols. To cache current size of
      data blocks and its format, .cache_packet_formats is added. This is used
      by PCM functionality, packet streaming functionality and data block
      processing layer.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      59f6482c
    • Takashi Sakamoto's avatar
      ALSA: firewire-motu: add a structure for model-dependent parameters. · 5e03c33e
      Takashi Sakamoto authored
      
      
      MOTU FireWire series doesn't tell drivers their capabilities, thus
      the drivers should have and apply model-dependent parameters to detected
      models.
      
      This commit adds a structure to represent such parameters. Capabilities
      are represented by enumeration except for the number of analog line
      in/out. Identification name also be in the structure because the units has
      no registers for this purpose.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      5e03c33e
    • Takashi Sakamoto's avatar
      ALSA: firewire-motu: postpone sound card registration · 8865a31e
      Takashi Sakamoto authored
      
      
      Just after appearing on IEEE 1394 bus, this unit generates several bus
      resets. This is due to loading firmware from on-board flash memory and
      initialize hardware. It's better to postpone sound card registration.
      
      This commit applies this idea.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      8865a31e
    • Takashi Sakamoto's avatar
      ALSA: firewire-motu: add skeleton for Mark of the unicorn (MOTU) FireWire series · 6c3cef48
      Takashi Sakamoto authored
      
      
      This commit adds an new driver for MOTU FireWire series. In this commit,
      this driver just creates/removes card instance according to bus event.
      More functionalities will be added in following commits.
      Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      6c3cef48
  2. 24 Mar, 2017 1 commit
    • Arnd Bergmann's avatar
      ALSA: au88x0: avoid theoretical uninitialized access · 13f99ebd
      Arnd Bergmann authored
      
      
      The latest gcc-7.0.1 snapshot points out that we if nr_ch is zero, we never
      initialize some variables:
      
      sound/pci/au88x0/au88x0_core.c: In function 'vortex_adb_allocroute':
      sound/pci/au88x0/au88x0_core.c:2304:68: error: 'mix[0]' may be used uninitialized in this function [-Werror=maybe-uninitialized]
      sound/pci/au88x0/au88x0_core.c:2305:58: error: 'src[0]' may be used uninitialized in this function [-Werror=maybe-uninitialized]
      
      I assume this can never happen in practice, but adding a check here doesn't
      hurt either and avoids the warning. The code has been unchanged since
      the start of git history.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      13f99ebd
  3. 20 Mar, 2017 11 commits
    • Matthias Kaehlcke's avatar
      ALSA: hda/ca0132: Remove double parentheses · a16fbb85
      Matthias Kaehlcke authored
      
      
      The extra pairs of parantheses are not needed and causes clang to
      generate warnings like this:
      
      sound/pci/hda/patch_ca0132.c:1171:14: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality]
              if ((buffer == NULL))
                   ~~~~~~~^~~~~~~
      sound/pci/hda/patch_ca0132.c:1171:14: note: remove extraneous parentheses around the comparison to silence this warning
              if ((buffer == NULL))
                  ~       ^      ~
      sound/pci/hda/patch_ca0132.c:1171:14: note: use '=' to turn this equality comparison into an assignment
              if ((buffer == NULL))
      Signed-off-by: default avatarMatthias Kaehlcke <mka@chromium.org>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      a16fbb85
    • Nicolas Iooss's avatar
      ALSA: es1688: Use strcpy() instead of sprintf() · cd7d1eab
      Nicolas Iooss authored
      
      
      There is no point in using sprintf() without a format string when
      strcpy() can perform the same operation.
      Signed-off-by: default avatarNicolas Iooss <nicolas.iooss_linux@m4x.org>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      cd7d1eab
    • Takashi Iwai's avatar
      Merge branch 'topic/for-4.12' into for-next · ebe2aa91
      Takashi Iwai authored
      ebe2aa91
    • Jaroslav Kysela's avatar
      ALSA: hda - add support for docking station for HP 840 G3 · cc3a47a2
      Jaroslav Kysela authored
      
      
      This tested patch adds missing initialization for Line-In/Out PINs for
      the docking station for HP 840 G3.
      Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      cc3a47a2
    • Jaroslav Kysela's avatar
      ALSA: hda - add support for docking station for HP 820 G2 · 04d5466a
      Jaroslav Kysela authored
      
      
      This tested patch adds missing initialization for Line-In/Out PINs for
      the docking station for HP 820 G2.
      Signed-off-by: default avatarJaroslav Kysela <perex@perex.cz>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      04d5466a
    • Takashi Iwai's avatar
      ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call · f363a066
      Takashi Iwai authored
      In the commit [15c75b09: ALSA: ctxfi: Fallback DMA mask to 32bit],
      I forgot to put "!" at dam_set_mask() call check in cthw20k1.c (while
      cthw20k2.c is OK).  This patch fixes that obvious bug.
      
      (As a side note: although the original commit was completely wrong,
       it's still working for most of machines, as it sets to 32bit DMA mask
       in the end.  So the bug severity is low.)
      
      Fixes: 15c75b09
      
       ("ALSA: ctxfi: Fallback DMA mask to 32bit")
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      f363a066
    • Linus Torvalds's avatar
      Linux 4.11-rc3 · 97da3854
      Linus Torvalds authored
      97da3854
    • Linus Torvalds's avatar
      mm/swap: don't BUG_ON() due to uninitialized swap slot cache · 452b94b8
      Linus Torvalds authored
      
      
      This BUG_ON() triggered for me once at shutdown, and I don't see a
      reason for the check.  The code correctly checks whether the swap slot
      cache is usable or not, so an uninitialized swap slot cache is not
      actually problematic afaik.
      
      I've temporarily just switched the BUG_ON() to a WARN_ON_ONCE(), since
      I'm not sure why that seemingly pointless check was there.  I suspect
      the real fix is to just remove it entirely, but for now we'll warn about
      it but not bring the machine down.
      
      Cc: "Huang, Ying" <ying.huang@intel.com>
      Cc: Tim Chen <tim.c.chen@linux.intel.com>
      Cc: Michal Hocko <mhocko@suse.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      452b94b8
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · a07a6e41
      Linus Torvalds authored
      Pull more powerpc fixes from Michael Ellerman:
       "A couple of minor powerpc fixes for 4.11:
      
         - wire up statx() syscall
      
         - don't print a warning on memory hotplug when HPT resizing isn't
           available
      
        Thanks to: David Gibson, Chandan Rajendra"
      
      * tag 'powerpc-4.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/pseries: Don't give a warning when HPT resizing isn't available
        powerpc: Wire up statx() syscall
      a07a6e41
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 4571bc5a
      Linus Torvalds authored
      Pull parisc fixes from Helge Deller:
      
       - Mikulas Patocka added support for R_PARISC_SECREL32 relocations in
         modules with CONFIG_MODVERSIONS.
      
       - Dave Anglin optimized the cache flushing for vmap ranges.
      
       - Arvind Yadav provided a fix for a potential NULL pointer dereference
         in the parisc perf code (and some code cleanups).
      
       - I wired up the new statx system call, fixed some compiler warnings
         with the access_ok() macro and fixed shutdown code to really halt a
         system at shutdown instead of crashing & rebooting.
      
      * 'parisc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Fix system shutdown halt
        parisc: perf: Fix potential NULL pointer dereference
        parisc: Avoid compiler warnings with access_ok()
        parisc: Wire up statx system call
        parisc: Optimize flush_kernel_vmap_range and invalidate_kernel_vmap_range
        parisc: support R_PARISC_SECREL32 relocation in modules
      4571bc5a
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · 8aa34172
      Linus Torvalds authored
      Pull SCSI target fixes from Nicholas Bellinger:
       "The bulk of the changes are in qla2xxx target driver code to address
        various issues found during Cavium/QLogic's internal testing (stable
        CC's included), along with a few other stability and smaller
        miscellaneous improvements.
      
        There are also a couple of different patch sets from Mike Christie,
        which have been a result of his work to use target-core ALUA logic
        together with tcm-user backend driver.
      
        Finally, a patch to address some long standing issues with
        pass-through SCSI export of TYPE_TAPE + TYPE_MEDIUM_CHANGER devices,
        which will make folks using physical (or virtual) magnetic tape happy"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (28 commits)
        qla2xxx: Update driver version to 9.00.00.00-k
        qla2xxx: Fix delayed response to command for loop mode/direct connect.
        qla2xxx: Change scsi host lookup method.
        qla2xxx: Add DebugFS node to display Port Database
        qla2xxx: Use IOCB interface to submit non-critical MBX.
        qla2xxx: Add async new target notification
        qla2xxx: Export DIF stats via debugfs
        qla2xxx: Improve T10-DIF/PI handling in driver.
        qla2xxx: Allow relogin to proceed if remote login did not finish
        qla2xxx: Fix sess_lock & hardware_lock lock order problem.
        qla2xxx: Fix inadequate lock protection for ABTS.
        qla2xxx: Fix request queue corruption.
        qla2xxx: Fix memory leak for abts processing
        qla2xxx: Allow vref count to timeout on vport delete.
        tcmu: Convert cmd_time_out into backend device attribute
        tcmu: make cmd timeout configurable
        tcmu: add helper to check if dev was configured
        target: fix race during implicit transition work flushes
        target: allow userspace to set state to transitioning
        target: fix ALUA transition timeout handling
        ...
      8aa34172
  4. 19 Mar, 2017 15 commits
  5. 18 Mar, 2017 7 commits
    • Nicholas Bellinger's avatar
      tcmu: Convert cmd_time_out into backend device attribute · 7d7a7435
      Nicholas Bellinger authored
      
      
      Instead of putting cmd_time_out under ../target/core/user_0/foo/control,
      which has historically been used by parameters needed for initial
      backend device configuration, go ahead and move cmd_time_out into
      a backend device attribute.
      
      In order to do this, tcmu_module_init() has been updated to create
      a local struct configfs_attribute **tcmu_attrs, that is based upon
      the existing passthrough_attrib_attrs along with the new cmd_time_out
      attribute.  Once **tcm_attrs has been setup, go ahead and point
      it at tcmu_ops->tb_dev_attrib_attrs so it's picked up by target-core.
      
      Also following MNC's previous change, ->cmd_time_out is stored in
      milliseconds but exposed via configfs in seconds.  Also, note this
      patch restricts the modification of ->cmd_time_out to before +
      after the TCMU device has been configured, but not while it has
      active fabric exports.
      
      Cc: Mike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      7d7a7435
    • Mike Christie's avatar
      tcmu: make cmd timeout configurable · af980e46
      Mike Christie authored
      
      
      A single daemon could implement multiple types of devices
      using multuple types of real devices that may not support
      restarting from crashes and/or handling tcmu timeouts. This
      makes the cmd timeout configurable, so handlers that do not
      support it can turn if off for now.
      Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      af980e46
    • Mike Christie's avatar
      tcmu: add helper to check if dev was configured · 972c7f16
      Mike Christie authored
      
      
      This adds a helper to check if the dev was configured. It
      will be used in the next patch to prevent updates to some
      config settings after the device has been setup.
      Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      972c7f16
    • Linus Torvalds's avatar
      Merge tag 'openrisc-for-linus' of git://github.com/openrisc/linux · 93afaa45
      Linus Torvalds authored
      Pull OpenRISC fixes from Stafford Horne:
       "OpenRISC fixes for build issues that were exposed by kbuild robots
        after 4.11 merge. All from allmodconfig builds. This includes:
      
         - bug in the handling of 8-byte get_user() calls
      
         - module build failure due to multile missing symbol exports"
      
      * tag 'openrisc-for-linus' of git://github.com/openrisc/linux:
        openrisc: Export symbols needed by modules
        openrisc: fix issue handling 8 byte get_user calls
        openrisc: xchg: fix `computed is not used` warning
      93afaa45
    • Mike Christie's avatar
      target: fix race during implicit transition work flushes · 760bf578
      Mike Christie authored
      
      
      This fixes the following races:
      
      1. core_alua_do_transition_tg_pt could have read
      tg_pt_gp_alua_access_state and gone into this if chunk:
      
      if (!explicit &&
              atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) ==
                 ALUA_ACCESS_STATE_TRANSITION) {
      
      and then core_alua_do_transition_tg_pt_work could update the
      state. core_alua_do_transition_tg_pt would then only set
      tg_pt_gp_alua_pending_state and the tg_pt_gp_alua_access_state would
      not get updated with the second calls state.
      
      2. core_alua_do_transition_tg_pt could be setting
      tg_pt_gp_transition_complete while the tg_pt_gp_transition_work
      is already completing. core_alua_do_transition_tg_pt then waits on the
      completion that will never be called.
      
      To handle these issues, we just call flush_work which will return when
      core_alua_do_transition_tg_pt_work has completed so there is no need
      to do the complete/wait. And, if core_alua_do_transition_tg_pt_work
      was running, instead of trying to sneak in the state change, we just
      schedule up another core_alua_do_transition_tg_pt_work call.
      
      Note that this does not handle a possible race where there are multiple
      threads call core_alua_do_transition_tg_pt at the same time. I think
      we need a mutex in target_tg_pt_gp_alua_access_state_store.
      Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      760bf578
    • Mike Christie's avatar
      target: allow userspace to set state to transitioning · 1ca4d4fa
      Mike Christie authored
      
      
      Userspace target_core_user handlers like tcmu-runner may want to set the
      ALUA state to transitioning while it does implicit transitions. This
      patch allows that state when set from configfs.
      Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      1ca4d4fa
    • Mike Christie's avatar
      target: fix ALUA transition timeout handling · d7175373
      Mike Christie authored
      
      
      The implicit transition time tells initiators the min time
      to wait before timing out a transition. We currently schedule
      the transition to occur in tg_pt_gp_implicit_trans_secs
      seconds so there is no room for delays. If
      core_alua_do_transition_tg_pt_work->core_alua_update_tpg_primary_metadata
      needs to write out info to a remote file, then the initiator can
      easily time out the operation.
      Signed-off-by: default avatarMike Christie <mchristi@redhat.com>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      d7175373