1. 16 Jul, 2015 1 commit
  2. 19 Apr, 2014 1 commit
    • Hans de Goede's avatar
      Input: serio - add firmware_id sysfs attribute · 0456c66f
      Hans de Goede authored
      serio devices exposed via platform firmware interfaces such as ACPI may
      provide additional identifying information of use to userspace.
      
      We don't associate the serio devices with the firmware device (we don't
      set it as parent), so there's no way for userspace to make use of this
      information.
      
      We cannot change the parent for serio devices instantiated though a
      firmware interface as that would break suspend / resume ordering.
      
      Therefore this patch adds a new firmware_id sysfs attribute so that
      userspace can get a string from there with any additional identifying
      information the firmware interface may provide.
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Acked-by: default avatarPeter Hutterer <peter.hutterer@who-t.net>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      0456c66f
  3. 13 Oct, 2012 1 commit
  4. 04 Apr, 2012 1 commit
    • Axel Lin's avatar
      Input: serio - add helper macro for serio_driver boilerplate · fa7f86d1
      Axel Lin authored
      This patch introduces the module_serio_driver macro which is a
      convenience macro for serio driver modules similar to
      module_platform_driver. It is intended to be used by drivers
      which init/exit section does nothing but registers/unregisters
      the serio driver. By using this macro it is possible to eliminate
      a few lines of boilerplate code per serio driver.
      
      Based on work done by Lars-Peter Clausen <lars@metafoo.de> for
      other buses (i2c and spi).
      Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
      Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
      fa7f86d1
  5. 31 Oct, 2011 1 commit
    • Paul Gortmaker's avatar
      include: convert various register fcns to macros to avoid include chaining · eb5589a8
      Paul Gortmaker authored
      The original implementations reference THIS_MODULE in an inline.
      We could include <linux/export.h>, but it is better to avoid chaining.
      
      Fortunately someone else already thought of this, and made a similar
      inline into a #define in <linux/device.h> for device_schedule_callback(),
      [see commit 523ded71] so follow that precedent here.
      
      Also bubble up any __must_check that were used on the prev. wrapper inline
      functions up one to the real __register functions, to preserve any prev.
      sanity checks that were used in those instances.
      Signed-off-by: default avatarPaul Gortmaker <paul.gortmaker@windriver.com>
      eb5589a8
  6. 28 Sep, 2011 1 commit
  7. 18 Oct, 2010 1 commit
  8. 13 Oct, 2010 1 commit
  9. 14 Sep, 2010 2 commits
  10. 14 Apr, 2010 1 commit
  11. 06 Jan, 2010 2 commits
    • Dmitry Torokhov's avatar
      Input: serio - let device core tell us if device was registered · ddf1ffbd
      Dmitry Torokhov authored
      No need to keep track of it by ourselves.
      Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
      ddf1ffbd
    • Eric W. Biederman's avatar
      Input: serio - fix potential deadlock when unbinding drivers · 59b01513
      Eric W. Biederman authored
      sysfs_remove_group() waits for sysfs attributes to be removed, therefore
      we do not need to worry about driver-specific attributes being accessed
      after driver has been detached from the device. In fact, attempts to take
      serio->drv_mutex in attribute methods may lead to the following deadlock:
      
                                                sysfs_read_file()
                                                  fill_read_buffer()
                                                    sysfs_get_active_two()
                                                      psmouse_attr_show_helper()
                                                        serio_pin_driver()
      serio_disconnect_driver()
        mutex_lock(&serio->drv_mutex);
                                      <-------->        mutex_lock(&serio_drv_mutex);
          psmouse_disconnect()
            sysfs_remove_group(... psmouse_attr_group);
              ....
              sysfs_deactivate();
                wait_for_completion();
      
      Fix this by removing calls to serio_[un]pin_driver() and functions themselves
      and using driver-private mutexes to serialize access to attribute's set()
      methods that may change device state.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
      59b01513
  12. 26 Oct, 2009 1 commit
  13. 26 Jul, 2009 1 commit
  14. 09 May, 2009 1 commit
  15. 07 Mar, 2009 1 commit
  16. 24 Nov, 2008 1 commit
  17. 23 Jul, 2008 1 commit
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  19. 07 Jul, 2008 1 commit
  20. 30 Jun, 2008 1 commit
  21. 15 Apr, 2008 1 commit
  22. 17 Jul, 2007 1 commit
  23. 12 Jul, 2007 1 commit
  24. 17 Feb, 2007 1 commit
  25. 07 Feb, 2007 1 commit
  26. 23 Nov, 2006 1 commit
  27. 16 Nov, 2006 1 commit
  28. 10 Oct, 2006 1 commit
  29. 05 Oct, 2006 1 commit
    • David Howells's avatar
      IRQ: Maintain regs pointer globally rather than passing to IRQ handlers · 7d12e780
      David Howells authored
      Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
      of passing regs around manually through all ~1800 interrupt handlers in the
      Linux kernel.
      
      The regs pointer is used in few places, but it potentially costs both stack
      space and code to pass it around.  On the FRV arch, removing the regs parameter
      from all the genirq function results in a 20% speed up of the IRQ exit path
      (ie: from leaving timer_interrupt() to leaving do_IRQ()).
      
      Where appropriate, an arch may override the generic storage facility and do
      something different with the variable.  On FRV, for instance, the address is
      maintained in GR28 at all times inside the kernel as part of general exception
      handling.
      
      Having looked over the code, it appears that the parameter may be handed down
      through up to twenty or so layers of functions.  Consider a USB character
      device attached to a USB hub, attached to a USB controller that posts its
      interrupts through a cascaded auxiliary interrupt controller.  A character
      device driver may want to pass regs to the sysrq handler through the input
      layer which adds another few layers of parameter passing.
      
      I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
      main part of the code on FRV and i386, though I can't test most of the drivers.
      I've also done partial conversion for powerpc and MIPS - these at least compile
      with minimal configurations.
      
      This will affect all archs.  Mostly the changes should be relatively easy.
      Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
      
      	struct pt_regs *old_regs = set_irq_regs(regs);
      
      And put the old one back at the end:
      
      	set_irq_regs(old_regs);
      
      Don't pass regs through to generic_handle_irq() or __do_IRQ().
      
      In timer_interrupt(), this sort of change will be necessary:
      
      	-	update_process_times(user_mode(regs));
      	-	profile_tick(CPU_PROFILING, regs);
      	+	update_process_times(user_mode(get_irq_regs()));
      	+	profile_tick(CPU_PROFILING);
      
      I'd like to move update_process_times()'s use of get_irq_regs() into itself,
      except that i386, alone of the archs, uses something other than user_mode().
      
      Some notes on the interrupt handling in the drivers:
      
       (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
           the input_dev struct.
      
       (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
           something different depending on whether it's been supplied with a regs
           pointer or not.
      
       (*) Various IRQ handler function pointers have been moved to type
           irq_handler_t.
      Signed-Off-By: default avatarDavid Howells <dhowells@redhat.com>
      (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
      7d12e780
  30. 04 Aug, 2006 3 commits
  31. 26 Mar, 2006 1 commit
  32. 18 Feb, 2006 1 commit
  33. 01 Jun, 2005 1 commit
  34. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4