1. 19 Jun, 2014 1 commit
  2. 13 May, 2014 1 commit
  3. 21 Apr, 2014 2 commits
    • Felipe Balbi's avatar
      usb: gadget: only GPL drivers in the gadget and phy framework · 0700faaf
      Felipe Balbi authored
      We only support GPL drivers in the USB Gadget Framework,
      it sounds correct to make all exported symbols GPL too.
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
      0700faaf
    • Felipe Balbi's avatar
      Revert "usb: gadget: u_ether: move hardware transmit to RX NAPI" · 9189a330
      Felipe Balbi authored
      This reverts commit 716fb91d.
      
      That commit caused a regression which would end up in a kernel
      BUG() as below:
      
      [  101.554300] g_ether gadget: full-speed config #1: CDC Subset/SAFE
      [  101.585186] ------------[ cut here ]------------
      [  101.600587] kernel BUG at include/linux/netdevice.h:495!
      [  101.615850] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM
      [  101.645539] Modules linked in:
      [  101.660483] CPU: 0 PID: 0 Comm: swapper Not tainted 3.15.0-rc1+ #104
      [  101.690175] task: c05dc5c8 ti: c05d2000 task.ti: c05d2000
      [  101.705579] PC is at eth_start+0x64/0x8c
      [  101.720981] LR is at __netif_schedule+0x7c/0x90
      [  101.736455] pc : [<c0299174>]    lr : [<c036a134>]    psr: 60000093
      [  101.736455] sp : c05d3d18  ip : c05d3cf8  fp : c05d3d2c
      [  101.782340] r10: 00000000  r9 : c196c1f0  r8 : c196c1a0
      [  101.797823] r7 : 00000000  r6 : 00000002  r5 : c1976400  r4 : c1976400
      [  101.828058] r3 : 00000000  r2 : c05d3ce8  r1 : 00000001  r0 : 00000002
      [  101.858722] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM Segment kernel
      Reported-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
      Signed-of-by: default avatarFelipe Balbi <balbi@ti.com>
      9189a330
  4. 07 Mar, 2014 1 commit
    • Weinn Jheng's avatar
      usb: gadget: u_ether: move hardware transmit to RX NAPI · 716fb91d
      Weinn Jheng authored
      In order to reduce the interrupt times in the embedded system,
      a receiving workqueue is introduced.
      This modification also enhanced the overall throughput as the
      benefits of reducing interrupt occurrence.
      
      This work was derived from previous work:
      u_ether: move hardware transmit to RX workqueue.
      Which should be base on codeaurora's work.
      
      However, the benchmark on my platform shows the throughput
      with workqueue is slightly better than NAPI.
      Signed-off-by: default avatarWeinn Jheng <clanlab.proj@gmail.com>
      Cc: David Brownell <dbrownell@users.sourceforge.net>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Stephen Hemminger <shemminger@vyatta.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Manu Gautam <mgautam@codeaurora.org>
      Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
      716fb91d
  5. 26 Nov, 2013 1 commit
  6. 10 Jun, 2013 3 commits
  7. 03 Apr, 2013 1 commit
  8. 06 Jan, 2013 1 commit
  9. 08 Nov, 2012 1 commit
  10. 07 Nov, 2012 1 commit
  11. 10 Sep, 2012 1 commit
  12. 31 Aug, 2012 1 commit
    • Michal Nazarewicz's avatar
      usb: gadget: get rid of USB_GADGET_{DUAL,SUPER}SPEED · 85b8614d
      Michal Nazarewicz authored
      This commit removes USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED
      Kconfig options.  Since now kernel allows many UDC drivers to be
      compiled, those options may turn to no longer be valid.  For
      instance, if someone decides to build UDC that supports super
      speed and UDC that supports high speed only, the latter will be
      "assumed" to support super speed since USB_GADGET_SUPERSPEED will
      be selected by the former.
      
      The test of whether CONFIG_USB_GADGET_*SPEED was defined was just
      an optimisation which removed otherwise dead code (ie. if UDC is
      not dual speed, there is no need to handle cases that can happen
      if speed is high).  This commit removes those checks.
      Signed-off-by: default avatarMichal Nazarewicz <mina86@mina86.com>
      Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
      85b8614d
  13. 20 Aug, 2012 1 commit
    • Tejun Heo's avatar
      workqueue: deprecate flush[_delayed]_work_sync() · 43829731
      Tejun Heo authored
      flush[_delayed]_work_sync() are now spurious.  Mark them deprecated
      and convert all users to flush[_delayed]_work().
      
      If you're cc'd and wondering what's going on: Now all workqueues are
      non-reentrant and the regular flushes guarantee that the work item is
      not pending or running on any CPU on return, so there's no reason to
      use the sync flushes at all and they're going away.
      
      This patch doesn't make any functional difference.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Cc: Ian Campbell <ian.campbell@citrix.com>
      Cc: Jens Axboe <axboe@kernel.dk>
      Cc: Mattia Dongili <malattia@linux.it>
      Cc: Kent Yoder <key@linux.vnet.ibm.com>
      Cc: David Airlie <airlied@linux.ie>
      Cc: Jiri Kosina <jkosina@suse.cz>
      Cc: Karsten Keil <isdn@linux-pingi.de>
      Cc: Bryan Wu <bryan.wu@canonical.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Alasdair Kergon <agk@redhat.com>
      Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
      Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
      Cc: David Woodhouse <dwmw2@infradead.org>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: linux-wireless@vger.kernel.org
      Cc: Anton Vorontsov <cbou@mail.ru>
      Cc: Sangbeom Kim <sbkim73@samsung.com>
      Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Eric Van Hensbergen <ericvh@gmail.com>
      Cc: Takashi Iwai <tiwai@suse.de>
      Cc: Steven Whitehouse <swhiteho@redhat.com>
      Cc: Petr Vandrovec <petr@vandrovec.name>
      Cc: Mark Fasheh <mfasheh@suse.com>
      Cc: Christoph Hellwig <hch@infradead.org>
      Cc: Avi Kivity <avi@redhat.com> 
      43829731
  14. 10 Aug, 2012 1 commit
    • Michael Grzeschik's avatar
      usb: gadget: u_ether: fix kworker 100% CPU issue with still used interfaces in eth_stop · b1b552a6
      Michael Grzeschik authored
      This patch fixes an issue introduced by patch:
      
          72c973dd usb: gadget: add usb_endpoint_descriptor to struct usb_ep
      
      Without this patch we see a kworker taking 100% CPU, after this sequence:
      
      - Connect gadget to a windows host
      - load g_ether
      - ifconfig up <ip>; ifconfig down; ifconfig up
      - ping <windows host>
      
      The "ifconfig down" results in calling eth_stop(), which will call
      usb_ep_disable() and, if the carrier is still ok, usb_ep_enable():
      
               usb_ep_disable(link->in_ep);
               usb_ep_disable(link->out_ep);
               if (netif_carrier_ok(net)) {
                       usb_ep_enable(link->in_ep);
                       usb_ep_enable(link->out_ep);
               }
      
      The ep should stay enabled, but will not, as ep_disable set the desc
      pointer to NULL, therefore the subsequent ep_enable will fail. This leads
      to permanent rescheduling of the eth_work() worker as usb_ep_queue()
      (called by the worker) will fail due to the unconfigured endpoint.
      
      We fix this issue by saving the ep descriptors and re-assign them before
      usb_ep_enable().
      
      Cc: Tatyana Brokhman <tlinder@codeaurora.org>
      Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
      Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
      Cc: stable <stable@vger.kernel.org>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b1b552a6
  15. 16 Jul, 2012 1 commit
  16. 25 Jun, 2012 1 commit
    • Kevin Cernekee's avatar
      usb: gadget: Fix g_ether interface link status · 31bde1ce
      Kevin Cernekee authored
      A "usb0" interface that has never been connected to a host has an unknown
      operstate, and therefore the IFF_RUNNING flag is (incorrectly) asserted
      when queried by ifconfig, ifplugd, etc.  This is a result of calling
      netif_carrier_off() too early in the probe function; it should be called
      after register_netdev().
      
      Similar problems have been fixed in many other drivers, e.g.:
      
          e826eafa (bonding: Call netif_carrier_off after register_netdevice)
          0d672e9f (drivers/net: Call netif_carrier_off at the end of the probe)
          6a3c869a (cxgb4: fix reported state of interfaces without link)
      
      Fix is to move netif_carrier_off() to the end of the function.
      
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarKevin Cernekee <cernekee@gmail.com>
      Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
      31bde1ce
  17. 10 May, 2012 1 commit
  18. 09 Sep, 2011 1 commit
    • Klaus Schwarzkopf's avatar
      usb gadget: clean up FSF boilerplate text · 28c9fc68
      Klaus Schwarzkopf authored
      remove the following two paragraphs as they are not needed:
      
      This program is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      License for more details.
      
      You should have received a copy of the GNU General Public License along with
      this program; if not, write to the Free Software Foundation, Inc.,59
      Temple Place - Suite 330, Boston, MA  02111-1307, USA.
      Signed-off-by: default avatarKlaus Schwarzkopf <schwarzkopf@sensortherm.de>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      28c9fc68
  19. 08 Jul, 2011 1 commit
  20. 28 Jun, 2011 1 commit
  21. 02 Mar, 2011 1 commit
  22. 24 Dec, 2010 1 commit
    • Tejun Heo's avatar
      usb: don't use flush_scheduled_work() · 569ff2de
      Tejun Heo authored
      flush_scheduled_work() is being deprecated.  Directly flush or cancel
      work items instead.
      
      * u_ether, isp1301_omap, speedtch conversions are straight-forward.
      
      * ochi-hcd should only flush when quirk_nec() is true as otherwise the
        work wouldn't have been initialized.
      
      * In oti6858, cancel_delayed_work() + flush_scheduled_work() ->
        cancel_delayed_work_sync().
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      Cc: David Brownell <dbrownell@users.sourceforge.net>
      Cc: Duncan Sands <duncan.sands@free.fr>
      Cc: linux-usb@vger.kernel.org
      569ff2de
  23. 10 Dec, 2010 1 commit
  24. 01 Nov, 2010 1 commit
  25. 28 Oct, 2010 1 commit
  26. 10 Aug, 2010 1 commit
  27. 20 May, 2010 1 commit
  28. 30 Mar, 2010 1 commit
    • Tejun Heo's avatar
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo authored
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: default avatarTejun Heo <tj@kernel.org>
      Guess-its-ok-by: default avatarChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  29. 02 Mar, 2010 1 commit
  30. 23 Sep, 2009 2 commits
    • Alexey Dobriyan's avatar
      headers: utsname.h redux · 2bcd57ab
      Alexey Dobriyan authored
      * remove asm/atomic.h inclusion from linux/utsname.h --
         not needed after kref conversion
       * remove linux/utsname.h inclusion from files which do not need it
      
      NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however
      due to some personality stuff it _is_ needed -- cowardly leave ELF-related
      headers and files alone.
      Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2bcd57ab
    • Brian Niebuhr's avatar
      USB: gadget: Add EEM gadget driver · 9b39e9dd
      Brian Niebuhr authored
      This patch adds a CDC EEM ethernet gadget driver.  CDC EEM is a newer
      USB ethernet specification that uses a simpler interface than the older
      CDC ECM.  This makes CDC EEM usable by a wider set of USB hardware.
      By default the ethernet gadget will still use CDC ECM/Subset, but kernel
      configuration and/or a module parameter will allow alternative use of
      the CDC EEM protocol.
      
      Changes since last version:
      	- Brought in missing RNDIS changes that caused compile error
      	- Modified 'sentinel CRC' checking to match EEM host driver
      Signed-off-by: default avatarBrian Niebuhr <bniebuhr@efjohnson.com>
      Cc: David Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      9b39e9dd
  31. 02 Sep, 2009 1 commit
  32. 01 Sep, 2009 1 commit
  33. 05 Jul, 2009 1 commit
  34. 13 Jun, 2009 1 commit
  35. 17 Apr, 2009 1 commit
  36. 07 Jan, 2009 1 commit