Age | Commit message (Collapse) | Author |
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Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Some devices have no input interrupt endpoint. These won't be handled
by usbhid, but currently they are not refused and reside on hid bus.
Perform this checking earlier so that we refuse to control such
a device early enough (and not pass it to the hid bus at all).
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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They would have been better named as get_be16, put_be16, etc.
as they were hiding an endian shift inside.
They don't add much over explicitly coding the byteshifting
and gcc sometimes has a problem with builtin_constant_p inside
inline functions, so it may do a better job of byteswapping
at compile time rather than runtime.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (25 commits)
USB: net: asix: add support for Cables-to-Go USB Ethernet adapter
USB: gadget: cdc-acm deadlock fix
USB: EHCI: fix divide-by-zero bug
USB: EHCI: fix handling of dead controllers
usb: r8a66597-hcd: fix wrong data access in SuperH on-chip USB
ub: stub pre_reset and post_reset to fix oops
USB: SISUSB2VGA driver: add 0x0711, 0x0903
usb: unusual devs patch for Nokia 7610 Supernova
USB: remove optional bus bindings in isp1760, fixing runtime warning
+ usb-serial-cp2101-add-enfora-gsm2228.patch added to -mm tree
USB: storage: adjust comment in Kconfig
USB: Fix PS3 USB shutdown problems
USB: unusual_devs entry for Argosy USB mass-storage interface
USB: cdc-acm.c: fix recursive lock in acm_start_wb error path
USB: CP2101 Add device ID for AMB2560
USB: mention URB_FREE_BUFFER in usb_free_urb documentation
USB: Add YISO u893 usb modem vendor and product IDs to option driver
usb: musb: fix BULK request on different available endpoints
usb: musb: fix debug global variable name
usb: musb: Removes compilation warning in gadget mode
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
dm: avoid destroying table in dm_any_congested
dm: move pending queue wake_up end_io_acct
dm mpath: warn if args ignored
dm mpath: avoid attempting to activate null path
dm stripe: fix init failure
dm raid1: flush workqueue before destruction
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dm_any_congested() just checks for the DMF_BLOCK_IO and has no
code to make sure that suspend waits for dm_any_congested() to
complete. This patch adds such a check.
Without it, a race can occur with dm_table_put() attempting to
destroying the table in the wrong thread, the one running
dm_any_congested() which is meant to be quick and return
immediately.
Two examples of problems:
1. Sleeping functions called from congested code, the caller
of which holds a spin lock.
2. An ABBA deadlock between pdflush and multipathd. The two locks
in contention are inode lock and kernel lock.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This doesn't fix any bug, just moves wake_up immediately after decrementing
md->pending, for better code readability.
It must be clear to anyone manipulating md->pending to wake up
the queue if md->pending reaches zero, so move the wakeup as close to
the decrementing as possible.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Currently dm ignores the parameters provided to hardware handlers
without providing any notifications to the user.
This patch just prints a warning message so that the user knows that
the arguments are ignored.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Path activation code is called even when the pgpath is NULL. This could
lead to a panic in activate_path(). Such a panic is seen in -rt kernel.
This problem has been there before the pg_init() was moved to a
workqueue.
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Don't proceed if dm_stripe_init() fails to register itself as a dm target.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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We queue work on keventd queue --- so this queue must be flushed in the
destructor. Otherwise, keventd could access mirror_set after it was freed.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
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Add support to drivers/net/usb/asix.c for the Cables-to-Go "USB 2.0 to
10/100 Ethernet Adapter". USB id 0b95:772a.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a deadlock appearing with some USB peripheral drivers
when running CDC ACM gadget code.
The newish (2.6.27) CDC ACM event notification mechanism sends
messages (IN to the host) which are short enough to fit in most
FIFOs. That means that with some peripheral controller drivers
(evidently not the ones used to verify the notification code!!)
the completion callback can be issued before queue() returns.
The deadlock would come because the completion callback and the
event-issuing code shared a spinlock. Fix is trivial: drop
that lock while queueing the message.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1164) fixes a bug in the EHCI scheduler. The interval
value it uses is already in linear format, not logarithmically coded.
The existing code can sometimes crash the system by trying to divide
by zero.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1165) makes a few small changes in the logic used by
ehci-hcd when it encounters a controller error:
Instead of printing out the masked status, it prints the
original status as read directly from the hardware.
It doesn't check for the STS_HALT status bit before taking
action. The mere fact that the STS_FATAL bit is set means
that something bad has happened and the controller needs to
be reset. With the old code this test could never succeed
because the STS_HALT bit was masked out from the status.
I anticipate that this will prevent the occasional "irq X: nobody cared"
problem people encounter when their EHCI controllers die.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When I used SuperH on-chip USB, there was the problem that accessed
r8a66597_root_hub which was not allocated.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Due to recent changes to usb_reset_device, the following hang occurs:
events/0 D 0000000000000000 0 6 2
ffff880037477cc0 0000000000000046 ffff880037477c50 ffffffff80237434
ffffffff80574c80 00000001000a015c 0000000000000286 ffff8800374757d0
ffff88002a31c860 ffff880037475a00 0000000036779140 ffff880037475a00
Call Trace:
[<ffffffff80237434>] try_to_del_timer_sync+0x52/0x5b
[<ffffffff8026f86c>] dma_pool_free+0x1a7/0x1ec
[<ffffffffa02a928a>] ub_disconnect+0x8e/0x1ad [ub]
[<ffffffff802407c9>] autoremove_wake_function+0x0/0x2e
[<ffffffff80378959>] usb_unbind_interface+0x5c/0xb7
[<ffffffff8036ab70>] __device_release_driver+0x95/0xbd
[<ffffffff8036ac70>] device_release_driver+0x21/0x2d
[<ffffffff803789f8>] usb_driver_release_interface+0x44/0x83
[<ffffffff80378ab9>] usb_forced_unbind_intf+0x17/0x1d
[<ffffffff80371ba4>] usb_reset_device+0x7d/0x114
[<ffffffffa02aaffd>] ub_reset_task+0x0/0x293 [ub]
[<ffffffffa02ab1c1>] ub_reset_task+0x1c4/0x293 [ub]
[<ffffffff8033dd1e>] flush_to_ldisc+0x0/0x1cd
[<ffffffffa02aaffd>] ub_reset_task+0x0/0x293 [ub]
[<ffffffff8023d302>] run_workqueue+0x87/0x114
[<ffffffff8023d467>] worker_thread+0xd8/0xe7
[<ffffffff802407c9>] autoremove_wake_function+0x0/0x2e
[<ffffffff8023d38f>] worker_thread+0x0/0xe7
[<ffffffff802404c1>] kthread+0x47/0x73
[<ffffffff8022c8dd>] schedule_tail+0x27/0x60
[<ffffffff8020c249>] child_rip+0xa/0x11
[<ffffffff8024047a>] kthread+0x0/0x73
[<ffffffff8020c23f>] child_rip+0x0/0x11
This is because usb_reset_device now unbinds, and that calls disconnect,
which in case of ub waits until the reset completes... which deadlocks.
Worse, this deadlocks keventd and this takes whole box down.
I'm going to fix this properly later, but let's unbreak the driver
quickly for non-composite devices at least.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Albert Comerma <albert.comerma@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Additional sectors were reported by the Nokia 7610 Supernova phone in
usb storage mode. The following patch rectifies the aforementioned
problem.
Signed-off-by: Ricky Wong Yung Fei <evilbladewarrior@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Roland Reported the following:
| kmem_cache_create: duplicate cache isp1760_qtd
| Pid: 461, comm: modprobe Tainted: G W 2.6.28-rc2-git3-default #4
| Call Trace:
| [<c017540e>] kmem_cache_create+0xc9/0x3a3
| [<c0159a8d>] free_pages_bulk+0x16c/0x1c9
| [<f165c05f>] isp1760_init+0x0/0xb [isp1760]
| [<f165c018>] init_kmem_once+0x18/0x5f [isp1760]
| [<f165c064>] isp1760_init+0x5/0xb [isp1760]
| [<c010113d>] _stext+0x4d/0x148
| [<c0142936>] load_module+0x12cd/0x142e
| [<c01743c4>] kmem_cache_destroy+0x0/0xd7
| [<c0142b1e>] sys_init_module+0x87/0x176
| [<c01039eb>] sysenter_do_call+0x12/0x2f
The reason, is that ret is initialized with ENODEV instead of 0 _or_
the kmem cache is not freed in error case with no bus binding.
The difference between OF+PCI and OF only is
| 15148 804 32 15984 3e70 isp1760-of-pci.o
| 13748 676 8 14432 3860 isp1760-of.o
about 1.5 KiB.
Until there is a checkbox where the user *must* select atleast one item,
and may select multiple entries I don't make it selectable anymore.
Having a driver which can't be used under any circumstances is broken
anyway and I've seen distros shipping it that way.
Reported-by: Roland Kletzing <devzero@web.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>a
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Enfora GSM2228 based on Cygnal Integrated Products chip uses the same
cp2101 driver.
Signed-off-by: Damir N Abdullin <damir@mimas.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Since commit 65934a9 ("Make USB storage depend on SCSI rather than selecting
it [try #6]") the comment at the top of drivers/usb/storage/Kconfig is
incorrect. Adjust it to the current situation.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add ehci_shutdown() or ohci_shutdown() calls to the USB
PS3 bus glue. ehci_shutdown() and ohci_shutdown() do some
controller specific cleanups not done by usb_remove_hcd().
Fixes errors on shutdown or reboot similar to these:
ps3-ehci-driver sb_07: HC died; cleaning up
irq 51: nobody cared (try booting with the "irqpoll" option)
Related bugzilla reports:
http://bugzilla.kernel.org/show_bug.cgi?id=11819
http://bugzilla.terrasoftsolutions.com/show_bug.cgi?id=317
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1162) adds an unusual_devs entry for Argosy's USB-IDE
interface. This fixes Bugzilla #11843.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Luciano Rocha <luciano@eurotux.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes an obvious bug in cdc-acm by avoiding a recursive lock on
acm_start_wb()'s error path. Should apply towards 2.6.27 stable and
2.6.28.
=============================================
[ INFO: possible recursive locking detected ]
2.6.27-2-pae #109
---------------------------------------------
python/31449 is trying to acquire lock:
(&acm->write_lock){++..}, at: [<f89a0348>] acm_start_wb+0x5c/0x7b [cdc_acm]
but task is already holding lock:
(&acm->write_lock){++..}, at: [<f89a04fb>] acm_tty_write+0xe1/0x167 [cdc_acm]
other info that might help us debug this:
2 locks held by python/31449:
#0: (&tty->atomic_write_lock){--..}, at: [<c0260fae>] tty_write_lock+0x14/0x3b
#1: (&acm->write_lock){++..}, at: [<f89a04fb>] acm_tty_write+0xe1/0x167 [cdc_acm]
stack backtrace:
Pid: 31449, comm: python Not tainted 2.6.27-2-pae #109
[<c030f42f>] ? printk+0xf/0x18
[<c0149f33>] __lock_acquire+0xc7b/0x1316
[<c014a63e>] lock_acquire+0x70/0x97
[<f89a0348>] ? acm_start_wb+0x5c/0x7b [cdc_acm]
[<c0312109>] _spin_lock_irqsave+0x37/0x47
[<f89a0348>] ? acm_start_wb+0x5c/0x7b [cdc_acm]
[<f89a0348>] acm_start_wb+0x5c/0x7b [cdc_acm]
[<f89a055d>] acm_tty_write+0x143/0x167 [cdc_acm]
[<c0262a98>] write_chan+0x1cd/0x297
[<c012527e>] ? default_wake_function+0x0/0xd
[<c026111e>] tty_write+0x149/0x1b9
[<c02628cb>] ? write_chan+0x0/0x297
[<c01912c5>] ? rw_verify_area+0x76/0x98
[<c0260fd5>] ? tty_write+0x0/0x1b9
[<c01919ba>] vfs_write+0x8c/0x136
[<c0191afd>] sys_write+0x3b/0x60
[<c0103beb>] sysenter_do_call+0x12/0x3f
=======================
Signed-off-by: Brandon Philips <bphilips@suse.de>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds the device vendor and product IDs for Amber Wireless AMB2560
Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The usb_free_urb comment says that the transfer buffer will not be
freed, but this is not the case when URB_FREE_BUFFER is set.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds YISO u893 usb modem vendor and product ID to option.c.
I had a better experience using this modification and the same system.
Signed-off-by: Leslie Harlley Watter <leslie@watter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes co-working issue of usb serial device with usb/net devices while
oter endpoints are free and can be used.This patch implements the policy
that if endpoint resources are available then different BULK request goes
to different endpoint otherwise they are multiplexed to one reserved
endpoint as currently done.
Switch statement case is reordered in musb_giveback() to take care of
bulk request both in multiplex scenario and otherwise.
NAK limit scheme has to be added for multiplexed BULK request scenario
to avoid endpoint starvation due to usb/net devices.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In order to avoid namespace conflicts, add a prefix
to our kernel-wise symbol.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes compilation warning when musb is configured in gadget mode.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add an errno to failing case.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fixes blurred capture images in dma mode. Isochronous error field in
urb and source data buffer pointer were not updated properly in dma
mode.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1155) fixes a bug in usbcore. When interfaces are
deleted, either because the device was disconnected or because of a
configuration change, the extra attribute files and child endpoint
devices may get left behind. This is because the core removes them
before calling device_del(). But during device_del(), after the
driver is unbound the core will reinstall altsetting 0 and recreate
those extra attributes and children.
The patch prevents this by adding a flag to record when the interface
is in the midst of being unregistered. When the flag is set, the
attribute files and child devices will not be created.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org> [2.6.27, 2.6.26, 2.6.25]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11685
When A Nikon D300 camera is connected to a system it is seen in
/proc/bus/pci/devices but is not accessible.
This is seen in the above file:
T: Bus=01 Lev=01 Prnt=01 Port=05 Cnt=03 Dev#= 11 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=04b0 ProdID=041a Rev= 1.03
S: Manufacturer=NIKON
S: Product=NIKON DSC D300
S: SerialNumber=000008014379
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=usbfs
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a reported compiler warning.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: ignore bit0 of _OSC return code
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants
[ARM] cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants
[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants
[ARM] dma-mapping: fix compiler warning
[ARM] iop: iop3xx needs registers mapped uncached+unbuffered
[ARM] versatile: correct MMC clock rate
[ARM] realview: correct MMC clock rate
[ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch fixes radio-mr800 hidqurks. Removes it from blacklist entry
and places it in ignore entry in hid/hid-core.c
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch fixes kworld fm700 usb-radio hidqurks that handled by
radio-si470x. Removes it from blacklist entry and places it in ignore
entry in hid/hid-core.c
The bug went in through the V4L/DVB tree by commit 6a13378a without
HID maintainer being involved at all.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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`stop' left out usbhid->urb* pointers and so the next `start' thought
it needs to allocate nothing and used the memory pointers previously
pointed to. This led to memory corruption and device malfunction.
Also don't forget to clear disconnect flag on start which was left set
by the previous `stop'.
This fixes
echo DEVICE > /sys/bus/hid/drivers/DRIVER/unbind
echo DEVICE > /sys/bus/hid/drivers/DRIVER/bind
failures.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Use single threaded work queue for hid_compat
I doubt HID really needs to scale over multiple CPUs. So only use a
single threaded workqueue for HID_COMPAT. This avoids some excessive
thread use on systems with a larger number of CPUs.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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On macbooks there are specific keys for the user-space functions Expose
and Dashboard, which currently has no counterpart in input.h. This patch
adds KEY_SCALE and KEY_DASHBOARD, and maps the keyboard accordingly.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The unibody MacBook 5 and MacBook Pro 5 come with a new version of
the bcm5974 trackpad. This patch adds the USB device ids and all
the appropriate quirks, including hid_blacklist.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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As open needs to sleep hidraw was wrong to call it with a spinlock held.
Furthermore, open can of course fail which needs to be handled.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Under qemu there is a race between the TDxE read-and-clear and the SCxTDR
write. While on hardware it can be gauranteed that the read-and-clear
will happen prior to the character being written out, no such assumption
can be made under emulation. As this path happens with IRQs off and the
hardware itself doesn't care about the ordering, move the SCxTDR write
until after the read-and-clear.
Signed-off-by: Vladimir Prus <vladimir@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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We have some reasons to kill netdev->priv:
1. netdev->priv is equal to netdev_priv().
2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
netdev_priv() is more flexible than netdev->priv.
But we cann't kill netdev->priv, because so many drivers reference to it
directly.
This patch is a safe convert for netdev->priv to netdev_priv(netdev).
Since all of the netdev->priv is only for read.
But it is too big to be sent in one mail.
I split it to 4 parts and make every part smaller than 100,000 bytes,
which is max size allowed by vger.
Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We have some reasons to kill netdev->priv:
1. netdev->priv is equal to netdev_priv().
2. netdev_priv() wraps the calculation of netdev->priv's offset, obviously
netdev_priv() is more flexible than netdev->priv.
But we cann't kill netdev->priv, because so many drivers reference to it
directly.
This patch is a safe convert for netdev->priv to netdev_priv(netdev).
Since all of the netdev->priv is only for read.
But it is too big to be sent in one mail.
I split it to 4 parts and make every part smaller than 100,000 bytes,
which is max size allowed by vger.
Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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