1. 24 10月, 2012 1 次提交
    • R
      PM / QoS: Make it possible to expose PM QoS device flags to user space · e39473d0
      Rafael J. Wysocki 提交于
      Define two device PM QoS flags, PM_QOS_FLAG_NO_POWER_OFF
      and PM_QOS_FLAG_REMOTE_WAKEUP, and introduce routines
      dev_pm_qos_expose_flags() and dev_pm_qos_hide_flags() allowing the
      caller to expose those two flags to user space or to hide them
      from it, respectively.
      
      After the flags have been exposed, user space will see two
      additional sysfs attributes, pm_qos_no_power_off and
      pm_qos_remote_wakeup, under the device's /sys/devices/.../power/
      directory.  Then, writing 1 to one of them will update the
      PM QoS flags request owned by user space so that the corresponding
      flag is requested to be set.  In turn, writing 0 to one of them
      will cause the corresponding flag in the user space's request to
      be cleared (however, the owners of the other PM QoS flags requests
      for the same device may still request the flag to be set and it
      may be effectively set even if user space doesn't request that).
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: NJean Pihet <j-pihet@ti.com>
      Acked-by: Nmark gross <markgross@thegnar.org>
      e39473d0
  2. 23 10月, 2012 4 次提交
    • R
      PM / QoS: Introduce PM QoS device flags support · ae0fb4b7
      Rafael J. Wysocki 提交于
      Modify the device PM QoS core code to support PM QoS flags requests.
      
      First, add a new field of type struct pm_qos_flags called "flags"
      to struct dev_pm_qos for representing the list of PM QoS flags
      requests for the given device.  Accordingly, add a new "type" field
      to struct dev_pm_qos_request (along with an enum for representing
      request types) and a new member called "flr" to its data union for
      representig flags requests.
      
      Second, modify dev_pm_qos_add_request(), dev_pm_qos_update_request(),
      the internal routine apply_constraint() used by them and their
      existing callers to cover flags requests as well as latency
      requests.  In particular, dev_pm_qos_add_request() gets a new
      argument called "type" for specifying the type of a request to be
      added.
      
      Finally, introduce two routines, __dev_pm_qos_flags() and
      dev_pm_qos_flags(), allowing their callers to check which PM QoS
      flags have been requested for the given device (the caller is
      supposed to pass the mask of flags to check as the routine's
      second argument and examine its return value for the result).
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: NJean Pihet <j-pihet@ti.com>
      Reviewed-by: Nmark gross <markgross@thegnar.org>
      ae0fb4b7
    • R
      PM / QoS: Prepare struct dev_pm_qos_request for more request types · 021c870b
      Rafael J. Wysocki 提交于
      The subsequent patches will use struct dev_pm_qos_request for
      representing both latency requests and flags requests.  To make that
      easier, put the node member of struct dev_pm_qos_request (under the
      name "pnode") into a union called "data" that will represent the
      request's  value and list node depending on its type.
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: NJean Pihet <j-pihet@ti.com>
      Reviewed-by: Nmark gross <markgross@thegnar.org>
      021c870b
    • R
      PM / QoS: Introduce request and constraint data types for PM QoS flags · 5efbe427
      Rafael J. Wysocki 提交于
      Introduce struct pm_qos_flags_request and struct pm_qos_flags
      representing PM QoS flags request type and PM QoS flags constraint
      type, respectively.  With these definitions the data structures
      will be arranged so that the list member of a struct pm_qos_flags
      object will contain the head of a list of struct pm_qos_flags_request
      objects representing all of the "flags" requests present for the
      given device.  Then, the effective_flags member of a struct
      pm_qos_flags object will contain the bitwise OR of the flags members
      of all the struct pm_qos_flags_request objects in the list.
      
      Additionally, introduce helper function pm_qos_update_flags()
      allowing the caller to manage the list of struct pm_qos_flags_request
      pointed to by the list member of struct pm_qos_flags.
      
      The flags are of type s32 so that the request's "value" field
      is always of the same type regardless of what kind of request it
      is (latency requests already have value fields of type s32).
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: NJean Pihet <j-pihet@ti.com>
      Acked-by: Nmark gross <markgross@thegnar.org>
      5efbe427
    • R
      PM / QoS: Prepare device structure for adding more constraint types · 5f986c59
      Rafael J. Wysocki 提交于
      Currently struct dev_pm_info contains only one PM QoS constraints
      pointer reserved for latency requirements.  Since one more device
      constraints type (i.e. flags) will be necessary, introduce a new
      structure, struct dev_pm_qos, that eventually will contain all of
      the available device PM QoS constraints and replace the "constraints"
      pointer in struct dev_pm_info with a pointer to the new structure
      called "qos".
      Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Reviewed-by: NJean Pihet <j-pihet@ti.com>
      5f986c59
  3. 20 10月, 2012 2 次提交
    • C
      pidns: remove recursion from free_pid_ns() · bbc2e3ef
      Cyrill Gorcunov 提交于
      free_pid_ns() operates in a recursive fashion:
      
      free_pid_ns(parent)
        put_pid_ns(parent)
          kref_put(&ns->kref, free_pid_ns);
            free_pid_ns
      
      thus if there was a huge nesting of namespaces the userspace may trigger
      avalanche calling of free_pid_ns leading to kernel stack exhausting and a
      panic eventually.
      
      This patch turns the recursion into an iterative loop.
      
      Based on a patch by Andrew Vagin.
      
      [akpm@linux-foundation.org: export put_pid_ns() to modules]
      Signed-off-by: NCyrill Gorcunov <gorcunov@openvz.org>
      Cc: Andrew Vagin <avagin@openvz.org>
      Cc: Oleg Nesterov <oleg@redhat.com>
      Cc: "Eric W. Biederman" <ebiederm@xmission.com>
      Cc: Pavel Emelyanov <xemul@parallels.com>
      Cc: Greg KH <greg@kroah.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      bbc2e3ef
    • R
      linux/coredump.h needs asm/siginfo.h · 1d46e232
      Richard Weinberger 提交于
      Commit 5ab1c309 ("coredump: pass siginfo_t* to do_coredump() and
      below, not merely signr") added siginfo_t to linux/coredump.h but forgot
      to include asm/siginfo.h.  This breaks the build for UML/i386.  (And any
      other arch where asm/siginfo.h is not magically preincluded...)
      
        In file included from arch/x86/um/elfcore.c:2:0: include/linux/coredump.h:15:25: error: unknown type name 'siginfo_t'
        make[1]: *** [arch/x86/um/elfcore.o] Error 1
      Signed-off-by: NRichard Weinberger <richard@nod.at>
      Cc: Denys Vlasenko <vda.linux@googlemail.com>
      Cc: Oleg Nesterov <oleg@redhat.com>
      Cc: Amerigo Wang <amwang@redhat.com>
      Cc: "Jonathan M. Foote" <jmfoote@cert.org>
      Cc: Roland McGrath <roland@hack.frob.com>
      Cc: Pedro Alves <palves@redhat.com>
      Cc: Fengguang Wu <fengguang.wu@intel.com>
      Cc: Stephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      1d46e232
  4. 18 10月, 2012 4 次提交
    • K
      of/irq: sparse fixes · d2e41518
      Kim Phillips 提交于
      drivers/of/irq.c:195:57: warning: restricted __be32 degrades to integer
      drivers/of/irq.c:196:51: warning: restricted __be32 degrades to integer
      drivers/of/irq.c:199:57: warning: restricted __be32 degrades to integer
      drivers/of/irq.c:201:58: warning: restricted __be32 degrades to integer
      drivers/of/irq.c:470:37: warning: incorrect type in assignment (different modifiers)
      drivers/of/irq.c:470:37:    expected int ( *[usertype] irq_init_cb )( ... )
      drivers/of/irq.c:470:37:    got void const *const data
      drivers/of/irq.c:96:5: error: symbol 'of_irq_map_raw' redeclared with different type (originally declared at include/linux/of_irq.h:61) - incompatible argument 2 (different base types)
      
      drivers/of/of_pci_irq.c:91:40: warning: incorrect type in argument 2 (different base types)
      drivers/of/of_pci_irq.c:91:40:    expected unsigned int const [usertype] *intspec
      drivers/of/of_pci_irq.c:91:40:    got restricted __be32 *<noident>
      drivers/of/of_pci_irq.c:91:53: warning: incorrect type in argument 4 (different base types)
      drivers/of/of_pci_irq.c:91:53:    expected unsigned int const [usertype] *addr
      drivers/of/of_pci_irq.c:91:53:    got restricted __be32 *<noident>
      Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
      Signed-off-by: NRob Herring <rob.herring@calxeda.com>
      d2e41518
    • K
      of/address: sparse fixes · 47b1e689
      Kim Phillips 提交于
      drivers/of/address.c:66:29: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:66:29:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:66:29:    got unsigned int [usertype] *addr
      drivers/of/address.c:87:32: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:87:32:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:87:32:    got unsigned int [usertype] *addr
      drivers/of/address.c:91:30: warning: incorrect type in assignment (different base types)
      drivers/of/address.c:91:30:    expected unsigned int [unsigned] [usertype] <noident>
      drivers/of/address.c:91:30:    got restricted __be32 [usertype] <noident>
      drivers/of/address.c:92:22: warning: incorrect type in assignment (different base types)
      drivers/of/address.c:92:22:    expected unsigned int [unsigned] [usertype] <noident>
      drivers/of/address.c:92:22:    got restricted __be32 [usertype] <noident>
      drivers/of/address.c:147:35: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:147:35:    expected restricted __be32 const [usertype] *addr
      drivers/of/address.c:147:35:    got unsigned int [usertype] *addr
      drivers/of/address.c:157:34: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:157:34:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:157:34:    got unsigned int [usertype] *
      drivers/of/address.c:256:29: warning: restricted __be32 degrades to integer
      drivers/of/address.c:256:36: warning: restricted __be32 degrades to integer
      drivers/of/address.c:262:34: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:262:34:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:262:34:    got unsigned int [usertype] *
      drivers/of/address.c:372:41: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:372:41:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:372:41:    got unsigned int [usertype] *addr
      drivers/of/address.c:395:53: warning: incorrect type in argument 2 (different base types)
      drivers/of/address.c:395:53:    expected restricted __be32 const [usertype] *addr
      drivers/of/address.c:395:53:    got unsigned int [usertype] *addr
      drivers/of/address.c:443:50: warning: incorrect type in argument 2 (different base types)
      drivers/of/address.c:443:50:    expected restricted __be32 const [usertype] *addr
      drivers/of/address.c:443:50:    got unsigned int *<noident>
      drivers/of/address.c:455:49: warning: incorrect type in argument 1 (different base types)
      drivers/of/address.c:455:49:    expected restricted __be32 const [usertype] *cell
      drivers/of/address.c:455:49:    got unsigned int *<noident>
      drivers/of/address.c:480:60: warning: incorrect type in argument 2 (different base types)
      drivers/of/address.c:480:60:    expected restricted __be32 const [usertype] *addr
      drivers/of/address.c:480:60:    got unsigned int *<noident>
      drivers/of/address.c:412:5: warning: symbol '__of_translate_address' was not declared. Should it be static?
      drivers/of/address.c:520:14: error: symbol 'of_get_address' redeclared with different type (originally declared at include/linux/of_address.h:22) - different base types
      Signed-off-by: NKim Phillips <kim.phillips@freescale.com>
      Signed-off-by: NRob Herring <rob.herring@calxeda.com>
      47b1e689
    • O
      of: add stub of_get_child_by_name for non-OF builds · 25c040c9
      Olof Johansson 提交于
      Fixes build error on s3c6400_defconfig, introduced by commit
      06455bbc, "dt/s3c64xx/spi: Use
      of_get_child_by_name to get a named child".
      
      drivers/spi/spi-s3c64xx.c: In function 's3c64xx_get_slave_ctrldata':
      drivers/spi/spi-s3c64xx.c:838:2: error: implicit declaration of function
          'of_get_child_by_name' [-Werror=implicit-function-declaration]
      Signed-off-by: NOlof Johansson <olof@lixom.net>
      Signed-off-by: NRob Herring <rob.herring@calxeda.com>
      25c040c9
    • G
      USB: usb.h: remove dbg() macro · 2c78040c
      Greg Kroah-Hartman 提交于
      There are no users of this macro anymore in the kernel tree, so finally
      delete it.
      Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      2c78040c
  5. 17 10月, 2012 8 次提交
  6. 13 10月, 2012 10 次提交
  7. 12 10月, 2012 10 次提交
  8. 11 10月, 2012 1 次提交