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Conflicts:
arch/x86/kvm/i8254.c
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Remove depricated conv functions which have been replaced with new
protocol routines.
This patch also reworks the one instance of the file-system code which
directly calls conversion routines (to accomplish unpacking dirreads).
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Now that the new protocol functions are in place, this patch switches
the client code to using the new support code.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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This removes the vestigial tag field from the p9_req_t structure.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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One of the current debug options allows users to get a verbose dump of fcalls.
This isn't really necessary as correctly parsed protocol frames can be printed
as part of the code in the client functions. The consolidated printfcalls
structure would require new entries to be added for every extension. This
patch removes the debug print methods and their use.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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This adds a new protocol processing support code based on Anthony Liguori's
9p library code. This code performs protocol marshalling/unmarshalling using
printf like strings to represent protocol elements. It is my intent to use
them to replace the current functions in conv.c as well as the
p9_create_* functions.
This should make the client implementation much more clear, and also make it
much easier to add new protocol extensions by limiting the number of places
in which changes need to be made.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Alsmot all 9P client wire functions have their own (set of) functions.
Tversion is an exception as its encapsulated into the client_create code.
This patch moves the protocol specifics of this to a function to match the
rest of the code.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Currently reading a directory is implemented in the client code.
This function is not actually a wire operation, but a meta operation
which calls read operations and processes the results.
This patch moves this functionality to the fs layer and calls component
wire operations instead of constructing their packets. This provides a
cleaner separation and will help when we reorganize the client functions
and protocol processing methods.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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There are a couple of methods in the client code which aren't actually
wire operations. To keep things organized cleaner, these operations are
being moved to the fs layer.
This patch moves the readn meta-function (which executes multiple wire
reads until a buffer is full) to the fs layer.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Currently there are two separate versions of read and write. One for
dealing with user buffers and the other for dealing with kernel buffers.
There is a tremendous amount of code duplication in the otherwise
identical versions of these functions. This patch adds an additional
user buffer parameter to read and write and conditionalizes handling of
the buffer on whether the kernel buffer or the user buffer is populated.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Post p9_fd_poll() error path which checks m->poll_waddr[i] for PTR_ERR
value has the following problems.
* It's completely unused. Error value is set iff NULL @wait_address
has been specified to p9_pollwait() which is guaranteed not to
happen.
* It dereferences @m after deallocating it (introduced by 571ffeaf and
spotted by Raja R Harinath.
* It returned the wrong value on error. It should return
poll_waddr[i] but it returnes poll_waddr (introduced by 571ffeaf).
* p9_mux_poll_stop() doesn't handle PTR_ERR value. It will try to
operate on the PTR_ERR value as if it's a normal pointer and cause
oops.
As the error path is bogus in the first place, there's no reason to
hold onto it. Kill it.
Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
Cc: Raja R Harinath <[email protected]>
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This code moves the rpc function to the common client base,
reorganizes the flush code to be more simple and stable, and
makes the necessary adjustments to the underlying transports
to adapt to the new structure.
This reduces the overall amount of code duplication between the
transports and should make adding new transports more straightforward.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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This patch reworks the read_work function to enable it to directly use a passed
in rcall structure. This should help allow us to remove unnecessary copies
in the future.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Apply the now common p9_req_t structure to the fd transport.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Simplify trans_fd by using new common client tagpool structure.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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The virtio transport uses a simplified request management system
that I want to use for all transports. This patch adapts and moves the
exisiting code for managing requests to the client common code.
Later patches will apply these mechanisms to the other transports.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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The current trans_fd rpc mechanisms use a dynamic callback mechanism which
introduces a lot of complexity which only accomodates a single special case.
This patch removes much of that complexity in favor of a simple exception
mechanism to deal with flushes.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Currently, trans_fd has two structures (p9_req and p9_mux-rpc)
which contain mostly duplicate data.
This patch consolidates these two structures and removes p9_mux_rpc.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Cleanup files by reordering functions in order to remove need for
unnecessary function prototypes.
There are no code changes here, just functions being moved around and
prototypes being eliminated.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Now that we are passing client state into the transport modules, remove
duplicate state which is present in transport private structures.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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Right now there is a transport module structure which provides per-transport
type functions and data and a transport structure which contains per-instance
public data as well as function pointers to instance specific functions.
This patch moves public transport visible instance data to the client
structure (which in some cases had duplicate data) and consolidates the
functions into the transport module structure.
Signed-off-by: Eric Van Hensbergen <[email protected]>
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trans_fd used pool of upto 100 pollers to monitor the r/w fds. The
approach makes sense in userspace back when the only available
interfaces were poll(2) and select(2). As each event monitor -
trigger - handling iteration took O(n) where `n' is the number of
watched fds, it makes sense to spread them to many pollers such that
the `n' can be divided by the number of pollers. However, this
doesn't make any sense in kernel because persistent edge triggered
event monitoring is how the whole thing is implemented in the kernel
in the first place.
This patch converts trans_fd to use single poller which watches all
the fds instead of the poll of pollers approach. All the fds are
registered for monitoring on creation and only the fds with pending
events are scanned when something happens much like how epoll is
implemented.
This change makes trans_fd fd monitoring more efficient and simpler.
Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net: Remove CONFIG_KMOD from net/ (towards removing CONFIG_KMOD entirely)
ipv4: Add a missing rcu_assign_pointer() in routing cache.
[netdrvr] ibmtr: PCMCIA IBMTR is ok on 64bit
xen-netfront: Avoid unaligned accesses to IP header
lmc: copy_*_user under spinlock
[netdrvr] myri10ge, ixgbe: remove broken select INTEL_IOATDMA
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* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (53 commits)
NFS: Fix a resolution problem with nfs_inode->cache_change_attribute
NFS: Fix the resolution problem with nfs_inode_attrs_need_update()
NFS: Changes to inode->i_nlinks must set the NFS_INO_INVALID_ATTR flag
RPC/RDMA: ensure connection attempt is complete before signalling.
RPC/RDMA: correct the reconnect timer backoff
RPC/RDMA: optionally emit useful transport info upon connect/disconnect.
RPC/RDMA: reformat a debug printk to keep lines together.
RPC/RDMA: harden connection logic against missing/late rdma_cm upcalls.
RPC/RDMA: fix connect/reconnect resource leak.
RPC/RDMA: return a consistent error, when connect fails.
RPC/RDMA: adhere to protocol for unpadded client trailing write chunks.
RPC/RDMA: avoid an oops due to disconnect racing with async upcalls.
RPC/RDMA: maintain the RPC task bytes-sent statistic.
RPC/RDMA: suppress retransmit on RPC/RDMA clients.
RPC/RDMA: fix connection IRD/ORD setting
RPC/RDMA: support FRMR client memory registration.
RPC/RDMA: check selected memory registration mode at runtime.
RPC/RDMA: add data types and new FRMR memory registration enum.
RPC/RDMA: refactor the inline memory registration code.
NFS: fix nfs_parse_ip_address() corner case
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Some code here depends on CONFIG_KMOD to not try to load
protocol modules or similar, replace by CONFIG_MODULES
where more than just request_module depends on CONFIG_KMOD
and and also use try_then_request_module in ebtables.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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rt_intern_hash() is doing an update of a RCU guarded hash chain
without using rcu_assign_pointer() or equivalent barrier.
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits)
UIO: Fix mapping of logical and virtual memory
UIO: add automata sercos3 pci card support
UIO: Change driver name of uio_pdrv
UIO: Add alignment warnings for uio-mem
Driver core: add bus_sort_breadthfirst() function
NET: convert the phy_device file to use bus_find_device_by_name
kobject: Cleanup kobject_rename and !CONFIG_SYSFS
kobject: Fix kobject_rename and !CONFIG_SYSFS
sysfs: Make dir and name args to sysfs_notify() const
platform: add new device registration helper
sysfs: use ilookup5() instead of ilookup5_nowait()
PNP: create device attributes via default device attributes
Driver core: make bus_find_device_by_name() more robust
usb: turn dev_warn+WARN_ON combos into dev_WARN
debug: use dev_WARN() rather than WARN_ON() in device_pm_add()
debug: Introduce a dev_WARN() function
sysfs: fix deadlock
device model: Do a quickcheck for driver binding before doing an expensive check
Driver core: Fix cleanup in device_create_vargs().
Driver core: Clarify device cleanup.
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
decnet: Fix compiler warning in dn_dev.c
IPV6: Fix default gateway criteria wrt. HIGH/LOW preference radv option
net/802/fc.c: Fix compilation warnings
netns: correct mib stats in ip6_route_me_harder()
netns: fix net_generic array leak
rt2x00: fix regression introduced by "mac80211: free up 2 bytes in skb->cb"
rtl8187: Add USB ID for Belkin F5D7050 with RTL8187B chip
p54usb: Device ID updates
mac80211: fixme for kernel-doc
ath9k/mac80211: disallow fragmentation in ath9k, report to userspace
libertas : Remove unused variable warning for "old_channel" from cmd.c
mac80211: Fix scan RX processing oops
orinoco: fix unsafe locking in spectrum_cs_suspend
orinoco: fix unsafe locking in orinoco_cs_resume
cfg80211: fix debugfs error handling
mac80211: fix debugfs netdev rename
iwlwifi: fix ct kill configuration for 5350
mac80211: fix HT information element parsing
p54: Fix compilation problem on PPC
mac80211: fix debugfs lockup
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name and nlen parameters passed to ->strategy hook are unused, remove
them. In general ->strategy hook should know what it's doing, and don't
do something tricky for which, say, pointer to original userspace array
may be needed (name).
Signed-off-by: Alexey Dobriyan <[email protected]>
Acked-by: David S. Miller <[email protected]> [ networking bits ]
Cc: Ralf Baechle <[email protected]>
Cc: David Howells <[email protected]>
Cc: Matt Mackall <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Signed-off-by: Danny ter Haar <[email protected]>
Cc: Patrick McHardy <[email protected]>
Cc: Mikael Starvik <[email protected]>
Cc: Avi Kivity <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Base infrastructure to enable per-module debug messages.
I've introduced CONFIG_DYNAMIC_PRINTK_DEBUG, which when enabled centralizes
control of debugging statements on a per-module basis in one /proc file,
currently, <debugfs>/dynamic_printk/modules. When, CONFIG_DYNAMIC_PRINTK_DEBUG,
is not set, debugging statements can still be enabled as before, often by
defining 'DEBUG' for the proper compilation unit. Thus, this patch set has no
affect when CONFIG_DYNAMIC_PRINTK_DEBUG is not set.
The infrastructure currently ties into all pr_debug() and dev_dbg() calls. That
is, if CONFIG_DYNAMIC_PRINTK_DEBUG is set, all pr_debug() and dev_dbg() calls
can be dynamically enabled/disabled on a per-module basis.
Future plans include extending this functionality to subsystems, that define
their own debug levels and flags.
Usage:
Dynamic debugging is controlled by the debugfs file,
<debugfs>/dynamic_printk/modules. This file contains a list of the modules that
can be enabled. The format of the file is as follows:
<module_name> <enabled=0/1>
.
.
.
<module_name> : Name of the module in which the debug call resides
<enabled=0/1> : whether the messages are enabled or not
For example:
snd_hda_intel enabled=0
fixup enabled=1
driver enabled=0
Enable a module:
$echo "set enabled=1 <module_name>" > dynamic_printk/modules
Disable a module:
$echo "set enabled=0 <module_name>" > dynamic_printk/modules
Enable all modules:
$echo "set enabled=1 all" > dynamic_printk/modules
Disable all modules:
$echo "set enabled=0 all" > dynamic_printk/modules
Finally, passing "dynamic_printk" at the command line enables
debugging for all modules. This mode can be turned off via the above
disable command.
[gkh: minor cleanups and tweaks to make the build work quietly]
Signed-off-by: Jason Baron <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Use offsetof() instead of home-brewed version.
Based upon initial patch by Steven Whitehouse and suggestions
by Ben Hutchings.
Signed-off-by: David S. Miller <[email protected]>
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Problem observed:
In IPv6, in the presence of multiple routers candidates to
default gateway in one segment, each sending a different
value of preference, the Linux hosts connected to the
segment weren't selecting the right one in all the
combinations possible of LOW/MEDIUM/HIGH preference.
This patch changes two files:
include/linux/icmpv6.h
Get the "router_pref" bitfield in the right place
(as RFC4191 says), named the bit left with this fix as
"home_agent" (RFC3775 say that's his function)
net/ipv6/ndisc.c
Corrects the binary logic behind the updating of the
router preference in the flags of the routing table
Result:
With this two fixes applied, the default route used by
the system was to consistent with the rules mentioned
in RFC4191 in case of changes in the value of preference
in router advertisements
Signed-off-by: Pedro Ribeiro <[email protected]>
Acked-by: YOSHIFUJI Hideaki <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Manish Katiyar <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
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Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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As I've reported, ath9k currently fails utterly when fragmentation
is enabled. This makes ath9k "support" hardware fragmentation by
not supporting fragmentation at all to avoid the double-free issue.
The patch also changes mac80211 to report errors from the driver
operation to userspace.
That hack in ath9k should be removed once the rate control algorithm
it has is fixed, and we can at that time consider removing the hw
fragmentation support entirely since it's not used by any driver.
Signed-off-by: Johannes Berg <[email protected]>
Cc: [email protected]
Acked-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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ieee80211_bss_info_update() can return NULL. Verify that this is not the
case before calling ieee802111_rx_bss_put() which would trigger an oops
in interrupt context in atomic_dec_and_lock().
Signed-off-by: Jouni Malinen <[email protected]>
Acked-by: Johannes Berg <[email protected]>
Acked-by: Benoit Papillault <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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If something goes wrong creating the debugfs dir or when
debugfs is not compiled in, the current code might lead to
trouble; make it more robust.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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If, for some reason, a netdev has no debugfs dir, we shouldn't
try to rename that dir.
Signed-off-by: Johannes Berg <[email protected]>
Cc: Robin Holt <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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There's no checking that the HT IEs are of the right length
which can be used by an attacker to cause an out-of-bounds
access by sending a too short HT information/capability IE.
Fix it by simply pretending those IEs didn't exist when too
short.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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When debugfs_create_dir fails, sta_info_debugfs_add_work will not
terminate because it will find the same station again and again.
This is possible whenever debugfs fails for whatever reason; one
reason is a race condition in mac80211, unfortunately we cannot
do much about it, so just document it, it just means some station
may be missing from debugfs.
Signed-off-by: Johannes Berg <[email protected]>
Cc: Robin Holt <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (55 commits)
HID: build drivers for all quirky devices by default
HID: add missing blacklist entry for Apple ATV ircontrol
HID: add support for Bright ABNT2 brazilian device
HID: Don't let Avermedia Radio FM800 be handled by usb hid drivers
HID: fix numlock led on Dell device 0x413c/0x2105
HID: remove warn() macro from usb hid drivers
HID: remove info() macro from usb HID drivers
HID: add appletv IR receiver quirk
HID: fix a lockup regression when using force feedback on a PID device
HID: hiddev.h: Fix example code.
HID: hiddev.h: Fix mixed space and tabs in example code.
HID: convert to dev_* prints
HID: remove hid-ff
HID: move zeroplus FF processing
HID: move thrustmaster FF processing
HID: move pantherlord FF processing
HID: fix incorrent length condition in hidraw_write()
HID: fix tty<->hid deadlock
HID: ignore iBuddy devices
HID: report descriptor fix for remaining MacBook JIS keyboards
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Move connecting from usbhid to the hid layer and fix also hidp in
that manner.
This removes all the ignore/force hidinput/hiddev connecting quirks.
Signed-off-by: Jiri Slaby <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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Move them from the core code to a separate driver.
Signed-off-by: Jiri Slaby <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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Move ignore quirks from usbhid-quirks into hid-core code. Also don't output
warning when ENODEV is error code in usbhid and try ordinal input in hidp
when that error is returned.
Signed-off-by: Jiri Slaby <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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Next step for complete hid bus, this patch includes:
- call parser either from probe or from hid-core if there is no probe.
- add ll_driver structure and centralize some stuff there (open, close...)
- split and merge usb_hid_configure and hid_probe into several functions
to allow hooks/fixes between them
Signed-off-by: Jiri Slaby <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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Make a bus from hid core. This is the first step for converting all the
quirks and separate almost-drivers into real drivers attached to this bus.
It's implemented to change behaviour in very tiny manner, so that no driver
needs to be changed this time.
Also add generic drivers for both usb and bt into usbhid or hidp
respectively which will bind all non-blacklisted device. Those blacklisted
will be either grabbed by special drivers or by nobody if they are broken at
the very rude base.
Signed-off-by: Jiri Slaby <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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