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This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
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cap grant/revoke message from non-auth MDS can update inode's size
and truncate_seq/truncate_size. (the message arrives before auth
MDS's cap trunc message)
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
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posix_acl_xattr_set() already does the check, and it's the only
way to feed in an ACL from userspace.
So the check here is useless, remove it.
Signed-off-by: zhang zhen <zhenzhang.zhang@huawei.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
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Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
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I've been told that do_div() expects an unsigned 64 bit number, and
is undefined if a signed is used. This gave a warning on the MIPS
build. I'm not sure if a signed 64 bit dividend is really an issue
or not, but the calculation this is used for is standard deviation,
and that isn't going to be negative. We can just convert it to
unsigned and be safe.
Reported-by: David Daney <ddaney.cavm@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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To avoid the confusion of having two variables, shrink the function to
only use the parameter variable for looping.
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/xen-netback/netback.c
net/core/filter.c
A filter bug fix overlapped some cleanups and a conversion
over to some new insn generation macros.
A xen-netback bug fix overlapped the addition of multi-queue
support.
Signed-off-by: David S. Miller <davem@davemloft.net>
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into next
Pull Microblaze updates from Michal Simek:
- cleanup PCI and DMA handling
- use generic device.h
- some cleanups
* tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Fix typo in head.S s/substract/subtract/
microblaze: remove check for CONFIG_XILINX_CONSOLE
microblaze: Use generic device.h
microblaze: Do not setup empty unmap_sg function
microblaze: Remove device_to_mask
microblaze: Clean device dma_ops structure
microblaze: Cleanup PCI_DRAM_OFFSET handling
microblaze: Do not setup pci_dma_ops
microblaze: Return default dma operations
microblaze: Enable SERIAL_OF_PLATFORM
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Pull ARM updates from Russell King:
- Major clean-up of the L2 cache support code. The existing mess was
becoming rather unmaintainable through all the additions that others
have done over time. This turns it into a much nicer structure, and
implements a few performance improvements as well.
- Clean up some of the CP15 control register tweaks for alignment
support, moving some code and data into alignment.c
- DMA properties for ARM, from Santosh and reviewed by DT people. This
adds DT properties to specify bus translations we can't discover
automatically, and to indicate whether devices are coherent.
- Hibernation support for ARM
- Make ftrace work with read-only text in modules
- add suspend support for PJ4B CPUs
- rework interrupt masking for undefined instruction handling, which
allows us to enable interrupts earlier in the handling of these
exceptions.
- support for big endian page tables
- fix stacktrace support to exclude stacktrace functions from the
trace, and add save_stack_trace_regs() implementation so that kprobes
can record stack traces.
- Add support for the Cortex-A17 CPU.
- Remove last vestiges of ARM710 support.
- Removal of ARM "meminfo" structure, finally converting us solely to
memblock to handle the early memory initialisation.
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits)
ARM: ensure C page table setup code follows assembly code (part II)
ARM: ensure C page table setup code follows assembly code
ARM: consolidate last remaining open-coded alignment trap enable
ARM: remove global cr_no_alignment
ARM: remove CPU_CP15 conditional from alignment.c
ARM: remove unused adjust_cr() function
ARM: move "noalign" command line option to alignment.c
ARM: provide common method to clear bits in CPU control register
ARM: 8025/1: Get rid of meminfo
ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type
ARM: 8066/1: correction for ARM patch 8031/2
ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
ARM: 8065/1: remove last use of CONFIG_CPU_ARM710
ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction
ARM: 8047/1: rwsem: use asm-generic rwsem implementation
ARM: l2c: trial at enabling some Cortex-A9 optimisations
ARM: l2c: add warnings for stuff modifying aux_ctrl register values
ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
ARM: l2c: remove old .set_debug method
ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this
...
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BPF classic->internal converter broke SKF_AD_PKTTYPE extension, since
pkt_type_offset() was failing to find skb->pkt_type field which is defined as:
__u8 pkt_type:3,
fclone:2,
ipvs_property:1,
peeked:1,
nf_trace:1;
Fix it by searching for 3 most significant bits and shift them by 5 at run-time
Fixes: bd4cf0ed331a ("net: filter: rework/optimize internal BPF interpreter's instruction set")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This commit fixes the following sparse warning:
drivers/net/phy/fixed.c:207
- warning: symbol 'fixed_phy_del' was not declared.
Should it be static?
by adding symbol definition to the phy_fixed.h API file. It is ok to do
because the function in question is an exported symbol.
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli says:
====================
net: systemport: misc fixes
This patch series contains some misc fixes for the SYSTEMPORT driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The SYSTEMPORT driver uses libphy to determine the carrier state, so
make sure we start with a carrier off until libphy has completed the
link training process.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The comment about how the hardware prepends 2bytes to align the IP
header on a 4-byte boundary was not correct, fix that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We were missing an and comparison with status to check whether
RX_STATUS_OVFLOW is asserted or not in the per-packet status word, fix
that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Our transmit locking scheme did not account for the TX ring full
interrupt. If a TX ring full interrupt fires while we are attempting to
transmit, we will cause a deadlock to occur. Fix this by making sure
that we properly disable interrupts while acquiring the spinlock.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter/nf_tables fixes for net-next
This patchset contains fixes for recent updates available in your
net-next, they are:
1) Fix double memory allocation for accounting objects that results
in a leak, this slipped through with the new quota extension,
patch from Mathieu Poirier.
2) Fix broken ordering when adding set element transactions.
3) Make sure that objects are released in reverse order in the abort
path, to avoid possible use-after-free when accessing dependencies.
4) Allow to delete several objects (as long as dependencies are
fulfilled) by using one batch. This includes changes in the use
counter semantics of the nf_tables objects.
5) Fix illegal sleeping allocation from rcu callback.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Lendacky says:
====================
amd-xgbe: AMD 10Gb Ethernet driver
The following series implements support for the new AMD 10Gb Ethernet
driver (amd-xgbe). It includes the 10Gb Ethernet driver as well as
a 10Gb Ethernet PHY driver.
This patch series is based on net-next.
Changes in V3:
- Add OF dependency to the phylib driver configuration
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the maintainer information for the AMD 10GbE
platform driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch provides the Kconfig and Makefile changes needed
to configure and build the AMD 10GbE platform driver and the
AMD 10GbE phylib driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch provides the initial phylib driver in support
of the AMD 10GbE device.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch provides the initial platform driver for the AMD
10GbE device.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch provides the documentation of the device bindings
for the AMD 10GbE platform driver.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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br_manage_promisc() incorrectly expects br_auto_port() to return only 0
or 1, while it actually returns flags, i.e., a subset of BR_AUTO_MASK.
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/ethernet/amd/hplance.h:
#define HPLANCE_MEMOFF 0x8000 /* struct lance_init_block */
#define HPLANCE_NVRAMOFF 0xC008 /* etheraddress as one *nibble* per byte */
The offset of RAM start is 0x8000, the offset of RAM end is 0xC008,
so the RAM size is 16392 bytes.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The order of ram pages is 3, so the ram size is 2^3 * 4K = 32K.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andrew Ruder says:
====================
miscellaneous dm9000 driver fixes
This is a collection of changes discovered while bringing a PXA270 based board
(Arcom ZEUS) with a Davicom DM9000A/B up to a more recent kernel (from 2.6.xx).
This addresses all of my earlier issues (August 2013) listed here:
http://marc.info/?l=linux-netdev&m=137598605603324&w=2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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On the DM9000B, dm9000_msleep() is called during the dm9000_timeout()
routine. Since dm9000_timeout() holds the main spinlock through the
entire routine, mdelay() needs to be used rather than msleep().
Furthermore, the mutex_lock()/mutex_unlock() should be avoided so as to
not sleep with spinlocks held.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On the DM9000A/DM9000B force the initial check of the link status. The
DM9000A/B has a link status changed event and this interrupt bit isn't
always set out of reset when a cable is plugged in. This results in the
driver not seeing the cable attached link status until the cable is
removed and plugged in again.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since dm9000_interrupt() is already reading/clearing every set bit in
DM9000_ISR, this additional clear in dm9000_rx() (which is only called
by dm9000_interrupt()) is unnecessary and can be removed.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DM9000 uses level-triggered interrupts. Some systems (PXA270) only
support edge-triggered interrupts on GPIOs. Some changes are necessary
to ensure that interrupts are not triggered while the GPIO interrupt is
masked or we will miss the interrupt forever.
* Make some helper functions called dm9000_mask_interrupts() and
dm9000_unmask_interrupts() for readability.
* dm9000_init_dm9000(): ensure that this function always leaves interrupts
masked regardless of the state when it entered the function. This is
primarily to support the situation in dm9000_open where the logic used
to go:
dm9000_open()
dm9000_init_dm9000()
unmask interrupts
request_irq()
If an interrupt occurred between unmasking the interrupt and
requesting the irq, it would be missed forever as the edge event would
never be seen by the GPIO hardware in the PXA270. This allows us to
change the logic to:
dm9000_open()
dm9000_init_dm9000()
dm9000_mask_interrupts()
request_irq()
dm9000_unmask_interrupts()
* dm9000_timeout(), dm9000_drv_resume(): Add the missing
dm9000_unmask_interrupts() now required by the change above.
* dm9000_shutdown(): Use mask helper function
* dm9000_interrupt(): Use mask/unmask helper functions
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* Change a hard-coded 0x3 to NCR_RST | NCR_MAC_LBK in dm9000_reset
* Every single place where dm9000_init_dm9000 was ran, a dm9000_reset
was called immediately before-hand. Bring dm9000_reset into
dm9000_init_dm9000.
* The following commit updated the dm9000_probe reset routine to use NCR_RST
| NCR_MAC_LBK:
6741f40 DM9000B: driver initialization upgrade
and a later commit added a bug-fix to always reset the chip twice:
09ee9f8 dm9000: Implement full reset of DM9000 network device
Unfortunately, since the changes in 6741f40 were made by replacing the
dm9000_probe dm9000_reset with the adjusted iow(), the changes in
09ee9f8 were not incorporated into the dm9000_probe reset.
Furthermore, it bypassed the requisite reset-delay causing some boards
to get at least one "read wrong id ..." dev_err message during
dm9000_probe.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The DM9000 supports both active high interrupts and active low interrupts.
This is configured via the attached EEPROM. In the device-tree case, make sure
that the DM9000 driver passes the correct flags to request_irq.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A recent commit (a02eb4 "xen-netback: worse-case estimate in xenvif_rx_action is
underestimating") capped the slot estimation to MAX_SKB_FRAGS, but that triggers
the next BUG_ON a few lines down, as the packet consumes more slots than
estimated.
This patch introduces full_coalesce on the skb callback buffer, which is used in
start_new_rx_buffer() to decide whether netback needs coalescing more
aggresively. By doing that, no packet should need more than
(XEN_NETIF_MAX_TX_SIZE + 1) / PAGE_SIZE data slots (excluding the optional GSO
slot, it doesn't carry data, therefore irrelevant in this case), as the provided
buffers are fully utilized.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@gmail.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Uninitialzed fields in mailbox command structure
caused commands to time out randomly due to garbage
values so initialize it to zero.
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If an MPLS packet requires segmentation then use mpls_features
to determine if the software implementation should be used.
As no driver advertises MPLS GSO segmentation this will always be
the case.
I had not noticed that this was necessary before as software MPLS GSO
segmentation was already being used in my test environment. I believe that
the reason for that is the skbs in question always had fragments and the
driver I used does not advertise NETIF_F_FRAGLIST (which seems to be the
case for most drivers). Thus software segmentation was activated by
skb_gso_ok().
This introduces the overhead of an extra call to skb_network_protocol()
in the case where where CONFIG_NET_MPLS_GSO is set and
skb->ip_summed == CHECKSUM_NONE.
Thanks to Jesse Gross for prompting me to investigate this.
Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Quoting David Miller:
"At the moment you call register_netdev() the device is visible, notifications
are sent to userspace, and userland tools can try to bring the interface up
and see the incorrect link state, before you do the netif_carrier_off().
Said another way, between the register_netdev() and netif_carrier_off() call,
userspace can see the device in an inconsistent state."
So call netif_carrier_off() prior to register_netdev().
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tegra has been switching to intermediate frequency (pll_p_clk) forever.
CPUFreq core has better support for handling notifications for these
frequencies and so we can adapt Tegra's driver to it.
Also do a WARN() if clk_set_parent() fails while moving back to pll_x
as we should have atleast restored to earlier frequency on error.
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Douglas Anderson, recently pointed out an interesting problem due to which
udelay() was expiring earlier than it should.
While transitioning between frequencies few platforms may temporarily switch to
a stable frequency, waiting for the main PLL to stabilize.
For example: When we transition between very low frequencies on exynos, like
between 200MHz and 300MHz, we may temporarily switch to a PLL running at 800MHz.
No CPUFREQ notification is sent for that. That means there's a period of time
when we're running at 800MHz but loops_per_jiffy is calibrated at between 200MHz
and 300MHz. And so udelay behaves badly.
To get this fixed in a generic way, introduce another set of callbacks
get_intermediate() and target_intermediate(), only for drivers with
target_index() and CPUFREQ_ASYNC_NOTIFICATION unset.
get_intermediate() should return a stable intermediate frequency platform wants
to switch to, and target_intermediate() should set CPU to that frequency,
before jumping to the frequency corresponding to 'index'. Core will take care of
sending notifications and driver doesn't have to handle them in
target_intermediate() or target_index().
NOTE: ->target_index() should restore to policy->restore_freq in case of
failures as core would send notifications for that.
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Doing so allows the hotplug events generated by the connector to be
properly handled by the DRM poll helpers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Calling the drm_helper_hpd_irq_event() helper can sleep, so instead of
invoking it directly from the interrupt handler, schedule a work queue
and run it from there.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Enable hardware cursor support on Tegra124. Earlier generations support
the hardware cursor to some degree as well, but not in a way that can be
generically exposed.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The DRM core can now cope with drivers that don't have an associated
struct drm_bus, so the host1x implementation is no longer useful.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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With the recent addition of the drm_set_unique() function, devices can
now be registered without requiring a drm_bus. Add a brief description
to the DRM docbook to show how that can be achieved.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Describe how devices are registered using the drm_*_init() functions.
Adding this to docbook requires a largish set of changes to the comments
in drm_{pci,usb,platform}.c since they are doxygen-style rather than
proper kernel-doc and therefore mess with the docbook generation.
While at it, mark usage of drm_put_dev() as discouraged in favour of
calling drm_dev_unregister() and drm_dev_unref() directly.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Add a helper function that allows drivers to statically set the unique
name of the device. This will allow platform and USB drivers to get rid
of their DRM bus implementations and directly use drm_dev_alloc() and
drm_dev_register().
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The internal host1x_{,un}register_client() functions can potentially be
confused with public the host1x_client_{,un}register() functions.
Rename them to host1x_{add,del}_client() to remove some of the possible
confusion.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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The function is never used outside of the source file and therefore can
be locally scoped.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Tegra124 is mostly backwards-compatible with Tegra114. However, Tegra124
supports a few more features (e.g. interlacing, ...). Introduce a new
compatible string and TMDS tables to cope with these differences.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Accessing the CRC debugfs file will hang the system if the SOR is not
enabled, so make sure that it is stays enabled until the CRC has been
read.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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