1. 24 1月, 2013 3 次提交
  2. 20 1月, 2013 1 次提交
    • H
      x86-32: Start out cr0 clean, disable paging before modifying cr3/4 · 021ef050
      H. Peter Anvin 提交于
      Patch
      
        5a5a51db x86-32: Start out eflags and cr4 clean
      
      ... made x86-32 match x86-64 in that we initialize %eflags and %cr4
      from scratch.  This broke OLPC XO-1.5, because the XO enters the
      kernel with paging enabled, which the kernel doesn't expect.
      
      Since we no longer support 386 (the source of most of the variability
      in %cr0 configuration), we can simply match further x86-64 and
      initialize %cr0 to a fixed value -- the one variable part remaining in
      %cr0 is for FPU control, but all that is handled later on in
      initialization; in particular, configuring %cr0 as if the FPU is
      present until proven otherwise is correct and necessary for the probe
      to work.
      
      To deal with the XO case sanely, explicitly disable paging in %cr0
      before we muck with %cr3, %cr4 or EFER -- those operations are
      inherently unsafe with paging enabled.
      
      NOTE: There is still a lot of 386-related junk in head_32.S which we
      can and should get rid of, however, this is intended as a minimal fix
      whereas the cleanup can be deferred to the next merge window.
      Reported-by: NAndres Salomon <dilinger@queued.net>
      Tested-by: NDaniel Drake <dsd@laptop.org>
      Link: http://lkml.kernel.org/r/50FA0661.2060400@linux.intel.comSigned-off-by: NH. Peter Anvin <hpa@linux.intel.com>
      021ef050
  3. 18 1月, 2013 2 次提交
  4. 17 1月, 2013 22 次提交
  5. 16 1月, 2013 4 次提交
  6. 15 1月, 2013 8 次提交
    • T
      ALSA: hda/hdmi - Work around "alsactl restore" errors · 6f54c361
      Takashi Iwai 提交于
      When "alsactl restore" is performed on HDMI codecs, it tries to
      restore the channel map value since the channel map controls are
      writable.  But hdmi_chmap_ctl_put() returns -EBADFD when no PCM stream
      is assigned yet, and this results in an error message from alsactl.
      Although the error is harmless, it's certainly ugly and can be
      regarded as a regression.
      
      As a workaround, this patch changes the return code in such a case to
      be zero for making others happy.  (A slight excuse is: when the chmap
      is changed through the proper alsa-lib API, the PCM status is checked
      there anyway, so we don't have to be too strict in the kernel side.)
      
      Cc: <stable@vger.kernel.org> [v3.7+]
      Signed-off-by: NTakashi Iwai <tiwai@suse.de>
      6f54c361
    • D
      cpuidle: remove the power_specified field in the driver · 8aef33a7
      Daniel Lezcano 提交于
      We realized that the power usage field is never filled and when it
      is filled for tegra, the power_specified flag is not set causing all
      of these values to be reset when the driver is initialized with
      set_power_state().
      
      However, the power_specified flag can be simply removed under the
      assumption that the states are always backward sorted, which is the
      case with the current code.
      
      This change allows the menu governor select function and the
      cpuidle_play_dead() to be simplified.  Moreover, the
      set_power_states() function can removed as it does not make sense
      any more.
      
      Drop the power_specified flag from struct cpuidle_driver and make
      the related changes as described above.
      
      As a consequence, this also fixes the bug where on the dynamic
      C-states system, the power fields are not initialized.
      
      [rjw: Changelog]
      References: https://bugzilla.kernel.org/show_bug.cgi?id=42870
      References: https://bugzilla.kernel.org/show_bug.cgi?id=43349
      References: https://lkml.org/lkml/2012/10/16/518Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      8aef33a7
    • T
      Merge tag 'asoc-atmel-pinctrl' of... · 2e4c4dbe
      Takashi Iwai 提交于
      Merge tag 'asoc-atmel-pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
      
      ASoC: atmel: Fixes for pinctrl
      
      Due to a series of problems with the handling of Atmel, a combination of
      making changes that make other branches instantly buggy and a general
      failure to deal with the resulting issues effectively, v3.8 Atmel audio
      currently won't work at all for DT boards without adding pinctrl
      definitions and a request for those.
      2e4c4dbe
    • L
      Merge tag 'trace-3.8-rc3-regression-fix' of... · 406089d0
      Linus Torvalds 提交于
      Merge tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
      
      Pull tracing regression fixes from Steven Rostedt:
       "The clean up patch commit 0fb9656d "tracing: Make tracing_enabled
        be equal to tracing_on" caused two regressions.
      
         1) The irqs off latency tracer no longer starts if tracing_on is off
            when the tracer is set, and then tracing_on is enabled.  The
            tracing_on file needs the hook that tracing_enabled had to enable
            tracers if they request it (call the tracer's start() method).
      
         2) That commit had a separate change that really should have been a
            separate patch, but it must have been added accidently with the -a
            option of git commit.  But as the change is still related to the
            commit it wasn't noticed in review.  That change, changed the way
            blocking is done by the trace_pipe file with respect to the
            tracing_on settings.  I've been told that this change breaks
            current userspace, and this specific change is being reverted."
      
      * tag 'trace-3.8-rc3-regression-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: Fix regression of trace_pipe
        tracing: Fix regression with irqsoff tracer and tracing_on file
      406089d0
    • L
      Merge tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · 7dea1ff3
      Linus Torvalds 提交于
      Pull regmap debugfs optimisation fixes from Mark Brown:
       "The debugfs optimisations merged in v3.8 weren't my finest hour, there
        were a number of cases that the more complex algorithm made worse
        especially around the error handling.  This patch series should
        address those issues."
      
      * tag 'regmap-debugfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: debugfs: Make sure we store the last entry in the offset cache
        regmap: debugfs: Ensure a correct return value for empty caches
        regmap: debugfs: Discard the cache if we fail to allocate an entry
        regmap: debugfs: Fix check for block start in cached seeks
        regmap: debugfs: Fix attempts to read nonexistant register blocks
      7dea1ff3
    • L
      Merge tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · 2ac1e664
      Linus Torvalds 提交于
      Pull regulator fixes from Mark Brown:
       "A few fixes for the regulator subsystems, a few driver specific things
        plus a fix for the interaction between regultor_can_change_voltage()
        and continuous voltage ranges both of which were added for this
        release."
      
      * tag 'regulator-3.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
        regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel
        regulator: max8998: Use uV in voltage_map_desc
        regulator: max8997: Use uV in voltage_map_desc
        regulator: core: Fix comment for regulator_register()
        regulator: core: Fix continuous_voltage_range case in regulator_can_change_voltage
        regulator: s5m8767: Fix probe failure due to stack corruption
      2ac1e664
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      e3d5b2f5
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      3ab91da2