... because fake struct file is wrong.
ll_prep_inode() in there is an atrocity - despite passing a pointer to
inode by address, it actually only uses the value when that value is
non-NULL, as it will be here.
Oh, and ->d_parent of anything is never NULL.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
There is a new PCIe bridge chip(from SMI) used in DVBSky V3 seris cards, include S950 V3 and S952 V3 cards.
SMI pcie bridge chip is PCIe 1.1 compliant, supports MSI feature.
Main interface blocks:
1>Two DVB transport stream input ports(ts0,ts1).
2>Two I2C master bus(i2c0, i2c1).
3>IR controller.
4>reset pins and other GPIOs.
DVBSky S950 V3 card has a single channel of dvb-s/s2.
1>Frontend: tuner: M88TS2022, demod: M88DS3103
2>PCIe bridge: SMI PCIe
The current driver does not support SMI IR function.
[mchehab@osg.samsung.com: fix Makefile to find m88ts2022.h]
Signed-off-by: Max nibble <nibble.max@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of calling v4l2_device_unregister() in multiple locations within the
error paths, let's call it from a single location to make the error handling
simpler.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
When VLAN is in use in macvtap_put_user, we end up setting
csum_start to the wrong place. The result is that the whoever
ends up doing the checksum setting will corrupt the packet instead
of writing the checksum to the expected location, usually this
means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN tags are
detected.
Fixes: f09e2249c4 ("macvtap: restore vlan header on user read")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers,
Signed-off-by: David S. Miller <davem@davemloft.net>
Herbert Xu says:
====================
tun: Fix csum_start and TUN_PKT_STRIP
The first patch fixes a serious problem that breaks checksum offload
in VMs while the second patch fixes a problem that probably affects
no one.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We set the flag TUN_PKT_STRIP if the user buffer provided is too
small to contain the entire packet plus meta-data. However, this
has been broken ever since we added GSO meta-data. VLAN acceleration
also has the same problem.
This patch fixes this by taking both into account when setting the
TUN_PKT_STRIP flag.
The fact that this has been broken for six years without anyone
realising means that nobody actually uses this flag.
Fixes: f43798c276 ("tun: Allow GSO using virtio_net_hdr")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
When VLAN acceleration is in use on the xmit path, we end up
setting csum_start to the wrong place. The result is that the
whoever ends up doing the checksum setting will corrupt the packet
instead of writing the checksum to the expected location, usually
this means writing the checksum with an offset of -4.
This patch fixes this by adjusting csum_start when VLAN acceleration
is detected.
Fixes: 6680ec68ef ("tuntap: hardware vlan tx support")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we run out of blocks for a given multi-block allocation, we obviously
did not reserve enough. We should reserve more blocks for the next
reservation to reduce fragmentation. This patch increases the size hint
for reservations when they run out.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
If an application does a sequence of (1) big write, (2) little write
we don't necessarily want to reset the size hint based on the smaller
size. The fact that they did any big writes implies they may do more,
and therefore we should try to allocate bigger block reservations, even
if the last few were small writes. Therefore this patch changes function
gfs2_size_hint so that the size hint can only grow; it cannot shrink.
This is especially important where there are multiple writers.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This patch tries to use the journal numbers to evenly distribute
which node prefers which resource group for block allocations. This
is to help performance.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
No need to store gfs2_dir_check result and test it before returning.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Running ftracetests on a box that mounted debugfs in two locations
made the ftracetests fail. This is because the tests uses a grep
of debugfs from the /proc/mounts file to find the debugfs mount
point, and then appends "/tracing" to that string to get the tracing
directory.
If the debugfs directory is mounted twice, then that grep will return
two answers and appending "/tracing" to a string with two lines will
not work.
Use "head -1" to only take the first mount point found.
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
list_for_each_entry_safe() is necessary if list objects are deleted from
the list while traversing it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
X-Patchwork-Delegate: m.chehab@samsung.com
As pointed by smatch:
drivers/media/pci/cx23885/cx23885-dvb.c:1066 dvb_register() error: we previously assumed 'fe0->dvb.frontend' could be null (see line 1060)
drivers/media/pci/cx23885/cx23885-dvb.c:1990 cx23885_dvb_register() error: we previously assumed 'fe0' could be null (see line 1975)
What happens is that the error handling logic when a frontend
register fails sometimes keep doing the work, as if it didn't
fail.
This could potentially cause an OOPS. So, simplify the logic
a little bit and return an error if frontend fails before
trying to setup VB2 queue.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
TechnoTrend CT2-4500 CI is a PCIe device with DVB-T2/C tuner. It is
similar to DVBSky T980C, just with different PCI ID and remote controller.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The update was supplied directly by PCTV.
Add tuner ids 182-188.
Add audproc ids 45-52.
Add decoder chip ids 43-53.
Use 32bits for the serial number.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Unfortunately, on devices that have multiple interfaces, udev->dev
points to the parent device (usb) instead of the cx231xx specific one.
Due to that the logs don't look too nice, as they'll print messages
as if they were produced by USB core:
usb-1-2: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces
Instead of using the name of the parent device, let's use the name
of the first cx231xx interface for all cx231xx sub-modules.
With this path, the logs will be nicer:
cx231xx 1-2:1.1: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Don't need to show when it starts or stops. Just print lines
when devices are found.
After the changes, the output for i2c scan will be like:
usb 1-2: i2c scan: found device @ port 0 addr 0x40 [???]
usb 1-2: i2c scan: found device @ port 0 addr 0x60 [colibri]
usb 1-2: i2c scan: found device @ port 0 addr 0x88 [hammerhead]
usb 1-2: i2c scan: found device @ port 0 addr 0x98 [???]
usb 1-2: i2c scan: found device @ port 3 addr 0xa0 [eeprom]
usb 1-2: i2c scan: found device @ port 2 addr 0x60 [colibri]
usb 1-2: i2c scan: found device @ port 2 addr 0xc0 [tuner]
usb 1-2: i2c scan: found device @ port 4 addr 0x20 [demod]
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Now that we're using dev_foo, the logs become like:
usb 1-2: DVB: registering adapter 0 frontend 0 (Fujitsu mb86A20s)...
usb 1-2: Successfully loaded cx231xx-dvb
cx231xx: Cx231xx dvb Extension initialized
It is not clear, by the logs, that usb 1-2 name is an alias for
cx231xx. So, we also need to use dvb_info() at extension load/unload.
After the patch, it will print:
usb 1-2: Cx231xx dvb Extension initialized
With is coherent with the other logs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There are several places at cx231xx that uses printk without
any special reason. Change all of them to use dev_foo().
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Now cx231xx_i2c_check_for_device works like i2c_check_for_device of em28xx driver.
For me this fixes scanning of all ports but port 2.
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
