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This patch implements close(), read(), write() and some ioctls, and
fixes some implementation issues in open(). Compared to the previous
patch it doesn't suffer an oops in the module code, however if you try
to open any of the serial devices a second time then an oops occurs in
tty_open(), presumably because my code isn't playing nicely on the
previous close():
Aug 13 11:44:01 [kernel] WARNING: at drivers/char/tty_io.c:1268 tty_open+0x3e5/0x46d()
Aug 13 11:44:01 [kernel] Hardware name: HP Compaq dc5100 MT(PW097ET)
Aug 13 11:44:01 [kernel] Modules linked in: quatech_usb2(C) usbserial snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss nls_iso8859_1 cifs xt_limit xt_NFLOG nfnetlink_log nfnetlink xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables i915 fb drm i2c_algo_bit cfbcopyarea i2c_core video backlight output cfbimgblt cfbfillrect snd_intel8x0 snd_ac97_codec ehci_hcd ac97_bus uhci_hcd snd_pcm snd_timer usbcore snd ohci1394 psmouse ide_cd_mod cdrom tg3 soundcore snd_page_alloc ieee1394 libphy intel_agp agpgart floppy evdev [last unloaded: usbserial]
Aug 13 11:44:01 [kernel] Pid: 26765, comm: stty Tainted: G C 2.6.31-rc5-git3-gkh #7
Aug 13 11:44:01 [kernel] Call Trace:
Aug 13 11:44:01 [kernel] [<c11dbef8>] ? tty_open+0x3e5/0x46d
Aug 13 11:44:01 [kernel] [<c10264e2>] warn_slowpath_common+0x88/0xb0
Aug 13 11:44:01 [kernel] [<c11dbef8>] ? tty_open+0x3e5/0x46d
Aug 13 11:44:01 [kernel] [<c102652b>] warn_slowpath_null+0x21/0x3b
Aug 13 11:44:01 [kernel] [<c11dbef8>] tty_open+0x3e5/0x46d
Aug 13 11:44:01 [kernel] [<c10883d1>] chrdev_open+0x77/0x113
Aug 13 11:44:01 [kernel] [<c1083a5d>] __dentry_open+0xb8/0x230
Aug 13 11:44:01 [kernel] [<c108835a>] ? chrdev_open+0x0/0x113
Aug 13 11:44:01 [kernel] [<c1084993>] nameidata_to_filp+0x61/0x6a
Aug 13 11:44:01 [kernel] [<c1091144>] do_filp_open+0x248/0x7cd
Aug 13 11:44:01 [kernel] [<c106f14f>] ? __do_fault+0x2ba/0x3b2
Aug 13 11:44:01 [kernel] [<c109a337>] ? alloc_fd+0x6a/0xf1
Aug 13 11:44:01 [kernel] [<c1083804>] do_sys_open+0x5f/0x12b
Aug 13 11:44:01 [kernel] [<c1083947>] sys_open+0x2e/0x47
Aug 13 11:44:01 [kernel] [<c1002e4f>] sysenter_do_call+0x12/0x26
Aug 13 11:44:01 [kernel] ---[ end trace 1d6b9e2cd7636394 ]---
Aug 13 11:44:01 [kernel] BUG: unable to handle kernel NULL pointer dereference at 00000004
Aug 13 11:44:01 [kernel] IP: [<c1086538>] file_move+0x26/0x47
Aug 13 11:44:01 [kernel] *pde = 00000000
Aug 13 11:44:01 [kernel] Modules linked in: quatech_usb2(C) usbserial snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss nls_iso8859_1 cifs xt_limit xt_NFLOG nfnetlink_log nfnetlink xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables i915 fb drm i2c_algo_bit cfbcopyarea i2c_core video backlight output cfbimgblt cfbfillrect snd_intel8x0 snd_ac97_codec ehci_hcd ac97_bus uhci_hcd snd_pcm snd_timer usbcore snd ohci1394 psmouse ide_cd_mod cdrom tg3 soundcore snd_page_alloc ieee1394 libphy intel_agp agpgart floppy evdev [last unloaded: usbserial]
Aug 13 11:44:01 [kernel] Pid: 26765, comm: stty Tainted: G WC (2.6.31-rc5-git3-gkh #7) HP Compaq dc5100 MT(PW097ET)
Aug 13 11:44:01 [kernel] EIP: 0060:[<c1086538>] EFLAGS: 00010282 CPU: 0
Aug 13 11:44:01 [kernel] EIP is at file_move+0x26/0x47
Aug 13 11:44:01 [kernel] EAX: 00000000 EBX: e593b508 ECX: ea7e9900 EDX: f734a888
Aug 13 11:44:01 [kernel] ESI: 00000000 EDI: 0bc00004 EBP: d8923e10 ESP: d8923e08
Aug 13 11:44:01 [kernel] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
Aug 13 11:44:01 [kernel] 2ba6efc8 c8c93180 d8923e48 c11dbca7 ea7e9900 eed37e6c 00000000 00008800
Aug 13 11:44:01 [kernel] <0> 00000000 e593b400 e593b400 00000004 2ba6efc8 c8c93188 00000000 eed37e6c
Aug 13 11:44:01 [kernel] <0> d8923e68 c10883d1 ea7e9900 2ba6efc8 2ba6efc8 ea7e9900 eed37e6c ffffffe9
Aug 13 11:44:01 [kernel] [<c11dbca7>] ? tty_open+0x194/0x46d
Aug 13 11:44:01 [kernel] [<c10883d1>] ? chrdev_open+0x77/0x113
Aug 13 11:44:01 [kernel] [<c1083a5d>] ? __dentry_open+0xb8/0x230
Aug 13 11:44:01 [kernel] [<c108835a>] ? chrdev_open+0x0/0x113
Aug 13 11:44:01 [kernel] [<c1084993>] ? nameidata_to_filp+0x61/0x6a
Aug 13 11:44:01 [kernel] [<c1091144>] ? do_filp_open+0x248/0x7cd
Aug 13 11:44:01 [kernel] [<c106f14f>] ? __do_fault+0x2ba/0x3b2
Aug 13 11:44:01 [kernel] [<c109a337>] ? alloc_fd+0x6a/0xf1
Aug 13 11:44:01 [kernel] [<c1083804>] ? do_sys_open+0x5f/0x12b
Aug 13 11:44:01 [kernel] [<c1083947>] ? sys_open+0x2e/0x47
Aug 13 11:44:01 [kernel] [<c1002e4f>] ? sysenter_do_call+0x12/0x26
Aug 13 11:44:01 [kernel] ---[ end trace 1d6b9e2cd7636395 ]---
Read and Write also do not work at the moment, and I'm fairly sure that
the URB completion callbacks are not running. Why this is I don't know,
and haven't tried to investigate.
Signed-off-by: Richard Ash <richard@audacityteam.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Part two of the driver implementation has finally got done. It
implements the rest of open and the callback for reads from the box. I
seem to have finally found a structure that can be made to work, with a
single set of URBs for bulk read and write for the whole device, which
are used by all the ports. I've rationalised a few things, but there
will still be a lot of clean-up needed.
This one definitely can panic the kernel when a port is opened for
reading, but I'm off on holiday so I thought I'd post where I have got
to so far. I haven't tried to debug why it panics with a null pointer
dereference yet.
Signed-off-by: Richard Ash <richard@audacityteam.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The patch is of the "works as far as it goes" variety, in that the
module compiles and loads, the device nodes are registered and the unit
switched on, but nothing actually works. On the other hand, it doesn't
panic the kernel, as far as I know.
Signed-off-by: Richard Ash <richard@audacityteam.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Convert prism2_usb firmware loading to load firmware in pre-compiled
binary 'ihex' format rather than ascii 'srec' format. This moves the
srec processing and sorting of records out of kernel space into a
pre-compiler. The driver now just works with the binary image, but
still does the 'pda plugging' of that image at runtime, as required
by the prism hardware.
Some Notes:
- The firmware is now expected to be in the same 'ihex' (.fw) format
used by other drivers.
- The now driver assumes the data records are already sorted into ascending
address order.
- Plug and crc records are still recognised by special address locations
as in original srec processing.
- The srec S7 start address record is assumed to have been converted
into a data record with another special address location (0xff400000),
with the original start address being stored as a 4 byte data word
(little endian).
Signed-off-by: Karl Relton <karllinuxtest.relton@ntlworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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extensions, WIRELESS_EXT is at 22 for the current kernel.
Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Moritz Muehlenhoff <jmm@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove unused #include <linux/version.h>'s in
drivers/staging/cpc-usb/cpc-usb_drv.c.
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If `cmd->chanlist_len' is 0, then we write ppl[-1].
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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vfree() does it's own NULL checking,so no need for check before
calling it.
'pages' is local variable argment,so in v2, it is no need assignment
to NULL.
Signed-off-by: Figo.zhang <figo1802@gmail.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Lindent changes to comdi driver in staging tree.
This patch is followed by the checkpatch.pl error fixes.
Did not make them part of this patch as the patch size is already huge.
Signed-off-by: Mithlesh Thukral <mithlesh@linsyssoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Apparently, the NULL test is not necessary at this point.
The semantic patch that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@
- T i = E->fld;
+ T i;
... when != E
when != i
if (E == NULL) S
+ i = E->fld;
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As the driver is in mainline now we can remove such dependency.
WIRELESS_EXT is 22 now and it is always defined.
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This fixes a number of warnings in the otus driver.
Signed-off-by: D Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As the driver is in mainline now we can remove such dependencies.
WIRELESS_EXT is 22 now.
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix this build error when CONFIG_WIRELESS_EXT is not set:
drivers/staging/vt6655/device_main.c:1153: error: 'struct net_device'
has no member named 'wireless_handlers'
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Integrate drivers/staging/vt6656 into build system.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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vt6656: replace call to info with printk call.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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vt6656: use net_device_ops for management functions
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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vt6656: Replace net_device->priv accesses with netdev_priv calls.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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drivers/staging/vt6656/main_usb.c: Drop obsolete fsuid/fsgid accesses.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Build vt6656.ko, not vntwusb.ko.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add includes to drivers/staging/vt6656. These came from the includes directory
in the upstream source archive. Trailing whitespace was stripped. This is
GPL-licensed code.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add pristine upstream vt6656 driver sources to drivers/staging/vt6656. These
files were copied from the driver directory in the upstream source archive,
available here:
http://www.viaarena.com/Driver/VT6656_Linux_src_v1.19_12_x86.zip
After copying, trailing whitespace was stripped. This is GPL-licensed code.
Signed-off-by: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This is the vendor driver for the Ralink RT3090 chipset.
It should be later cleaned and ported to use the existing rt2x00
infrastructure or just replaced by the proper version.
[ Unfortunately since it follows the same design/implementation like
rt{286,287,307}0 drivers (already present in the staging tree)
it is highly unlikely that it will see much love from the wireless
development community.. ]
However since the development of the cleaner/proper version can take
significant time lets give distros (i.e. openSUSE seems to already
have the package with the original vendor driver) and users "something"
to use in the meantime.
I forward ported it to 2.6.31-rc1, ported to the Linux build system
and did some initial cleanups. More fixes/cleanups to come later
(it seems that the driver can be made to share most of its code with
the other Ralink drivers already present in the staging tree).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* remove commented out code
* remove useless comments
* beautify code
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* make read_rtl8225() static
* make tables static const
* remove commented out code
* remove useless comments
* beautify code
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* merge r8180_pm.c with r8180_core.c
* make functions static
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* remove unused rtl8180_{save_state,enable_wake}()
* remove commented out code
* beautify code
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* merge r8180_rtl8225.c with r8180_rtl8225z2.c
* make functions static
* make tables static const
* remove unused rtl8225_set_gain()
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* remove empty rtl8225_host_usb_init()
* remove commented out code
* remove useless comments
* beautify code
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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CONFIG_RTL8185B is defined in drivers/staging/rtl8187se/r8180_hw.h.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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CONFIG_RTL818x_S is defined in drivers/staging/rtl8187se/r8180_hw.h.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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* s/WLAN_AUTH_LEAP/RTL_WLAN_AUTH_LEAP/g
* s/struct ieee80211_hdr/struct rtl_ieee80211_hdr/g
* switch to use <linux/ieee80211.h>
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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