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  1. 11 Feb, 2014 4 commits
    • Alan Stern's avatar
      USB: ohci-platform: check for platform data misconfiguration · adff5295
      Alan Stern authored 
      The ohci-platform driver checks for misconfigurations in cases where
the Device Tree data specifies big-endian registers or descriptors but
the corresponding driver config settings have not been enabled.  As
Jonas Gorski suggested, we may as well apply the same check to general
platform data too.

This requires moving the code that sets the big-endian quirk flags
from the ohci_platform_reset() routine into ohci_platform_probe(), and
moving the checks out of the DT-specific "if" statement clause.

The patch also changes the text of the error messages in an attempt to
make the nature of the error more clear.
Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Reported-by: default avatarJonas Gorski <jogo@openwrt.org>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      adff5295
    • Alan Stern's avatar
      USB: ehci-platform: check for platform data misconfiguration · 843d5e03
      Alan Stern authored 
      The ehci-platform driver checks for misconfigurations in cases where
the Device Tree data specifies big-endian registers or descriptors but
the corresponding driver config settings have not been enabled.  As
Jonas Gorski suggested, we may as well apply the same check to general
platform data too.

This requires moving the code that sets the big-endian quirk flags
from the ehci_platform_reset() routine into ehci_platform_probe(), and
moving the checks out of the DT-specific "if" statement clause.

The patch also changes the text of the error messages in an attempt to
make the nature of the error more clear.
Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Reported-by: default avatarJonas Gorski <jogo@openwrt.org>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      843d5e03
    • Hans de Goede's avatar
      ehci-platform: Change compatible string from usb-ehci to generic-ehci · 915974c3
      Hans de Goede authored 
      The initial versions of the devicetree enablement patches for ehci-platform
used "ehci-platform" as compatible string. However this was disliked by various
reviewers because the platform bus is a Linux invention and devicetree is
supposed to be OS agnostic. After much discussion I gave up, added a:
"depends on !PPC_OF" to Kconfig to avoid a known conflict with PPC-OF platforms
and went with the generic usb-ehci as requested.

In retro-spect I should have chosen something different, the dts files for many
existing boards already claim to be compatible with "usb-ehci", ie they have:

	compatible = "ti,ehci-omap", "usb-ehci";

In theory this should not be a problem since the "ti,ehci-omap" entry takes
presedence, but in practice using a conflicting compatible string is an issue,
because it makes which driver gets used depend on driver registration order.

This patch changes the compatible string claimed by ehci-platform to
"generic-ehci", avoiding the driver registration / module loading ordering
problems, and removes the "depends on !PPC_OF" workaround.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Tested-by: default avatarKevin Hilman <khilman@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      915974c3
    • Hans de Goede's avatar
      ohci-platform: Change compatible string from usb-ohci to generic-ohci · ce149c30
      Hans de Goede authored 
      The initial versions of the devicetree enablement patches for ohci-platform
used "ohci-platform" as compatible string. However this was disliked by various
reviewers because the platform bus is a Linux invention and devicetree is
supposed to be OS agnostic. After much discussion I gave up and went with
the generic usb-ohci as requested.

In retro-spect I should have chosen something different, the dts files for many
existing boards already claim to be compatible with "usb-ohci", ie they have:

	compatible = "ti,ohci-omap3", "usb-ohci";

In theory this should not be a problem since the "ti,ohci-omap3" entry takes
presedence, but in practice using a conflicting compatible string is an issue,
because it makes which driver gets used depend on driver registration order.

This patch changes the compatible string claimed by ohci-platform to
"generic-ohci", avoiding the driver registration / module loading ordering
problems.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Tested-by: default avatarKevin Hilman <khilman@linaro.org>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      ce149c30
  3. 07 Feb, 2014 8 commits
  5. 04 Feb, 2014 10 commits
  7. 03 Feb, 2014 4 commits
    • Linus Torvalds's avatar
      Linus 3.14-rc1 · 38dbfb59
      Linus Torvalds authored
      38dbfb59
    • Linus Torvalds's avatar
      Merge branch 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 69048e01
      Linus Torvalds authored 
      Pull parisc updates from Helge Deller:
 "The three major changes in this patchset is a implementation for
  flexible userspace memory maps, cache-flushing fixes (again), and a
  long-discussed ABI change to make EWOULDBLOCK the same value as
  EAGAIN.

  parisc has been the only platform where we had EWOULDBLOCK != EAGAIN
  to keep HP-UX compatibility.  Since we will probably never implement
  full HP-UX support, we prefer to drop this compatibility to make it
  easier for us with Linux userspace programs which mostly never checked
  for both values.  We don't expect major fall-outs because of this
  change, and if we face some, we will simply rebuild the necessary
  applications in the debian archives"

* 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: add flexible mmap memory layout support
  parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
  parisc: convert uapi/asm/stat.h to use native types only
  parisc: wire up sched_setattr and sched_getattr
  parisc: fix cache-flushing
  parisc/sti_console: prefer Linux fonts over built-in ROM fonts
      69048e01
    • Mikulas Patocka's avatar
      hpfs: optimize quad buffer loading · 1c0b8a7a
      Mikulas Patocka authored 
      HPFS needs to load 4 consecutive 512-byte sectors when accessing the
directory nodes or bitmaps.  We can't switch to 2048-byte block size
because files are allocated in the units of 512-byte sectors.

Previously, the driver would allocate a 2048-byte area using kmalloc,
copy the data from four buffers to this area and eventually copy them
back if they were modified.

In the current implementation of the buffer cache, buffers are allocated
in the pagecache.  That means that 4 consecutive 512-byte buffers are
stored in consecutive areas in the kernel address space.  So, we don't
need to allocate extra memory and copy the content of the buffers there.

This patch optimizes the code to avoid copying the buffers.  It checks
if the four buffers are stored in contiguous memory - if they are not,
it falls back to allocating a 2048-byte area and copying data there.
Signed-off-by: default avatarMikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1c0b8a7a
    • Mikulas Patocka's avatar
      hpfs: remember free space · 2cbe5c76
      Mikulas Patocka authored 
      Previously, hpfs scanned all bitmaps each time the user asked for free
space using statfs.  This patch changes it so that hpfs scans the
bitmaps only once, remembes the free space and on next invocation of
statfs it returns the value instantly.

New versions of wine are hammering on the statfs syscall very heavily,
making some games unplayable when they're stored on hpfs, with load
times in minutes.

This should be backported to the stable kernels because it fixes
user-visible problem (excessive level load times in wine).
Signed-off-by: default avatarMikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2cbe5c76
  9. 02 Feb, 2014 12 commits
  11. 01 Feb, 2014 2 commits
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