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Every socket protocol now stores its own address information. So
just remove the generic src and dst fields since they are no longer
needed.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The address information of RFCOMM sockets should be stored in its
own socket structure. Trying to generalize them is not helpful since
different transports have different address types.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The address information of SCO sockets should be stored in its own
socket structure. Trying to generalize them is not helpful since
different transports have different address types.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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Instead of storing a pointer to the addresses for the HCI device
and HCI connection, use them directly. With the recent changes
to address tracking of HCI connections, this becomes simple.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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This driver has a section mismatch, for probe and remove functions,
leading to the following warning during the compilation.
WARNING: drivers/watchdog/built-in.o(.data+0x24): Section mismatch in
reference from the variable sunxi_wdt_driver to the function
.init.text:sunxi_wdt_probe()
The variable sunxi_wdt_driver references
the function __init sunxi_wdt_probe()
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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STAGE_CFG bits are defined as [5:4] bits. However, '(((x) & 0x30) << 4)'
handles [9:8] bits. Thus, it should be fixed in order to handle
[5:4] bits.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Calling the WDIOC_GETSTATUS & WDIOC_GETBOOTSTATUS and twice will cause a
interruptible deadlock.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In ftrace_syscall_enter(),
syscall_get_arguments(..., 0, n, ...)
if (i == 0) { <handle ORIG_r0> ...; n--;}
memcpy(..., n * sizeof(args[0]));
If 'number of arguments(n)' is zero and 'argument index(i)' is also zero in
syscall_get_arguments(), none of arguments should be copied by memcpy().
Otherwise 'n--' can be a big positive number and unexpected amount of data
will be copied. Tracing system calls which take no argument, say sync(void),
may hit this case and eventually make the system corrupted.
This patch fixes the issue both in syscall_get_arguments() and
syscall_set_arguments().
Cc: <stable@vger.kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"A small batch of fixes this week, mostly OMAP related. Nothing stands
out as particularly controversial.
Also a fix for a 3.12-rc1 timer regression for Exynos platforms,
including the Chromebooks"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: exynos: dts: Update 5250 arch timer node with clock frequency
ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config
ARM: mach-omap2: board-generic: fix undefined symbol
ARM: dts: Fix pinctrl mask for omap3
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT
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Without the "clock-frequency" property in arch timer node, could able
to see the below crash dump.
[<c0014e28>] (unwind_backtrace+0x0/0xf4) from [<c0011808>] (show_stack+0x10/0x14)
[<c0011808>] (show_stack+0x10/0x14) from [<c036ac1c>] (dump_stack+0x7c/0xb0)
[<c036ac1c>] (dump_stack+0x7c/0xb0) from [<c01ab760>] (Ldiv0_64+0x8/0x18)
[<c01ab760>] (Ldiv0_64+0x8/0x18) from [<c0062f60>] (clockevents_config.part.2+0x1c/0x74)
[<c0062f60>] (clockevents_config.part.2+0x1c/0x74) from [<c0062fd8>] (clockevents_config_and_register+0x20/0x2c)
[<c0062fd8>] (clockevents_config_and_register+0x20/0x2c) from [<c02b8e8c>] (arch_timer_setup+0xa8/0x134)
[<c02b8e8c>] (arch_timer_setup+0xa8/0x134) from [<c04b47b4>] (arch_timer_init+0x1f4/0x24c)
[<c04b47b4>] (arch_timer_init+0x1f4/0x24c) from [<c04b40d8>] (clocksource_of_init+0x34/0x58)
[<c04b40d8>] (clocksource_of_init+0x34/0x58) from [<c049ed8c>] (time_init+0x20/0x2c)
[<c049ed8c>] (time_init+0x20/0x2c) from [<c049b95c>] (start_kernel+0x1e0/0x39c)
THis is because the Exynos u-boot, for example on the Chromebooks, doesn't set
up the CNTFRQ register as expected by arch_timer. Instead, we have to specify
the frequency in the device tree like this.
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
[olof: Changed subject, added comment, elaborated on commit message]
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few fixes for omap3 related hangs and errors that people have
noticed now that people are actually using the device tree
based booting for omap3.
Also one regression fix for timer compile for dra7xx when
omap5 is not selected, and a LED regression fix for n900.
* tag 'fixes-against-v3.12-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2: RX-51: Add missing max_current to rx51_lp5523_led_config
ARM: mach-omap2: board-generic: fix undefined symbol
ARM: dts: Fix pinctrl mask for omap3
ARM: OMAP3: Fix hardware detection for omap3630 when booted with device tree
ARM: OMAP2: gpmc-onenand: fix sync mode setup with DT
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"This patchset includes a bugfix to prevent a kernel crash when memory
in page zero is accessed by the kernel itself, e.g. via
probe_kernel_read().
Furthermore we now export flush_cache_page() which is needed
(indirectly) by the lustre filesystem. The other patches remove
unused functions and optimizes the page fault handler to only evaluate
variables if needed, which again protects against possible kernel
crashes"
* 'parisc-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: let probe_kernel_read() capture access to page zero
parisc: optimize variable initialization in do_page_fault
parisc: fix interruption handler to respect pagefault_disable()
parisc: mark parisc_terminate() noreturn and cold.
parisc: remove unused syscall_ipi() function.
parisc: kill SMP single function call interrupt
parisc: Export flush_cache_page() (needed by lustre)
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Pull slave-dmaengine fixes from Vinod Koul:
"Another week, time to send another fixes request taking time out of
extended weekend for the festivities in this part of the world.
We have two fixes from Sergei for rcar driver and one fixing memory
leak of edma driver by Geyslan"
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma: edma.c: remove edma_desc leakage
rcar-hpbdma: add parameter to set_slave() method
rcar-hpbdma: remove shdma_free_irq() calls
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The L2CAP sockets can use BR/EDR public, LE public and LE random
addresses for various combinations of source and destination
devices. So make sure that getsockname(), getpeername() and
accept() return the correct address type.
For this the address type of the source and destination is stored
with the L2CAP channel information. The stored address type is
not the one specific for the HCI protocol. It is the address
type used for the L2CAP sockets and the management interface.
The underlying HCI connections store the HCI address type. If
needed, it gets converted to the socket address type.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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With the effort of abstracting the L2CAP socket from the underlying
L2CAP channel it is important to store the source and destination
address information directly in the L2CAP channel structure.
Direct access to the HCI connection address information is not
possible since they might not be avaiable at L2CAP channel
creation time. The address information will be updated when
the underlying BR/EDR or LE connection status changes.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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Signed-off-by: Helge Deller <deller@gmx.de>
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The attached change defers the initialization of the variables tsk, mm
and flags until they are needed. As a result, the code won't crash if a
kernel probe is done with a corrupt context and the code will be better
optimized.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Running an "echo t > /proc/sysrq-trigger" crashes the parisc kernel. The
problem is, that in print_worker_info() we try to read the workqueue info via
the probe_kernel_read() functions which use pagefault_disable() to avoid
crashes like this:
probe_kernel_read(&pwq, &worker->current_pwq, sizeof(pwq));
probe_kernel_read(&wq, &pwq->wq, sizeof(wq));
probe_kernel_read(name, wq->name, sizeof(name) - 1);
The problem here is, that the first probe_kernel_read(&pwq) might return zero
in pwq and as such the following probe_kernel_reads() try to access contents of
the page zero which is read protected and generate a kernel segfault.
With this patch we fix the interruption handler to call parisc_terminate()
directly only if pagefault_disable() was not called (in which case
preempt_count()==0). Otherwise we hand over to the pagefault handler which
will try to look up the faulting address in the fixup tables.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v3.0+
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Helge Deller <deller@gmx.de>
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Signed-off-by: Helge Deller <deller@gmx.de>
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Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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ERROR: "flush_cache_page" [drivers/staging/lustre/lustre/libcfs/libcfs.ko] undefined!
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Helge Deller <deller@gmx.de>
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When having LE connections, the source address is not always the
public address of the controller. So update the socket address
based on the actual used source address of the HCI connection.
This also remove the pointless source address pointer and adds
a proper lock around the socket structure.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The SMP source code has a few coding style violations. Fix them up
all at once. No actual code has changed.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The smp_c1() so far always assumed public addresses as input for its
operation. However it should provide actually the source address type
of the actual connection.
Finally the source address type is tracked in hci_conn->src_type and
so use that one as input.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The source address is now stored in hci_conn->src and so use that
one for L2CAP functions.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The source address is now stored in hci_conn->src and so use that
one for SMP functions.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The incoming LE connections do not have a proper source address and
address type set. The connection needs to be set with the same values
as used for advertising parameters.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The source addressed was based on the public address of the HCI device,
but with LE connections this not always the case. For example single
mode LE-only controllers would use a static random address. And this
address is configured by userspace.
To not complicate the lookup of what kind of address is in use, store
the correct source address for each HCI connection.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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When establishing LE connections, it is possible to use a public
address (if available) or a random address. The type of address
is only known when creating connections, so make sure it is
stored in hci_conn structure.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The bdaddr_to_le() function tries to convert the internal address
type to one that matches the HCI address type for LE. It does not
handle any address types not used by LE and in the end just make
the code a lot harder to read.
So instead of just hiding behind a magic function, just convert
the internal address type where it needs to be converted. And it
turns out that these are only two cases anyway. One when creating
new LE connections and the other when loading the long term keys.
In both cases this makes it more clear on what it going on.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The l2cap_conn->src and l2cap_conn->dst pointers are no longer in use
and so just remove them.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The l2cap_conn->src and l2cap_conn->dst addresses are just a pointers
to hci_conn structure. Use hci_conn->hdev->bdaddr and hci_conn->dst
directly instead.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The l2cap_conn->src and l2cap_conn->dst addresses are just a pointer
to hci_conn->hdev->bdaddr and hci_conn->dst structures. Use the data
provided by hci_conn directly. This is done for hci_conn->dst_type
already anyway and with this change it makes it a lot clearer were
the address information comes from.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The l2cap_conn->dst address is just a pointer into the hci_conn->dst
structure. Use hci_conn->dst directly instead.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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Olga reported that file descriptors opened with O_PATH do not work with
fstatfs(), found during further development of ksh93's thread support.
There is no reason to not allow O_PATH file descriptors here (fstatfs is
very much a path operation), so use "fdget_raw()". See commit
55815f70147d ("vfs: make O_PATH file descriptors usable for 'fstat()'")
for a very similar issue reported for fstat() by the same team.
Reported-and-tested-by: ольга крыжановская <olga.kryzhanovska@gmail.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org # O_PATH introduced in 3.0+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 bugfixes from Ted Ts'o:
"A bug fix and performance regression fix for ext4"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix memory leak in xattr
ext4: fix performance regression in writeback of random writes
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We've got more bug fixes in my for-linus branch:
One of these fixes another corner of the compression oops from last
time. Miao nailed down some problems with concurrent snapshot
deletion and drive balancing.
I kept out one of his patches for more testing, but these are all
stable"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix oops caused by the space balance and dead roots
Btrfs: insert orphan roots into fs radix tree
Btrfs: limit delalloc pages outside of find_delalloc_range
Btrfs: use right root when checking for hash collision
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All stable fixes except for a trivial headset mic fixup: the removal
of bogus frame checks in snd-usb-usx2y driver that have regressed in
the recent kernel versions, the HD-audio HDMI channel map fix, and a
few HD-audio device-specific fixes"
* tag 'sound-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Sony VAIO Pro 13 (haswell) now has a working headset jack
ALSA: hda - Add a headset mic model for ALC269 and friends
ALSA: hda - Fix microphone for Sony VAIO Pro 13 (Haswell model)
ALSA: hda - Add fixup for ASUS N56VZ
ALSA: hda - hdmi: Fix channel map switch not taking effect
ALSA: hda - Fix mono speakers and headset mic on Dell Vostro 5470
ALSA: snd-usb-usx2y: remove bogus frame checks
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"We had various reports of problems with deferred probing in the I2C
subsystem, so this pull requst is a little bigger than usual.
Most issues should be addressed now so devices will be found
correctly. A few ususal driver bugfixes are in here, too"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-mux-pinctrl: use deferred probe when adapter not found
i2c: i2c-arb-gpio-challenge: use deferred probe when adapter not found
i2c: i2c-mux-gpio: use deferred probing
i2c: i2c-mux-gpio: don't ignore of_get_named_gpio errors
i2c: omap: Clear ARDY bit twice
i2c: Not all adapters have a parent
i2c: i2c-stu300: replace platform_driver_probe to support deferred probing
i2c: i2c-mxs: replace platform_driver_probe to support deferred probing
i2c: i2c-imx: replace platform_driver_probe to support deferred probing
i2c: i2c-designware-platdrv: replace platform_driver_probe to support deferred probing
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If we take the 2nd retry path in ext4_expand_extra_isize_ea, we
potentionally return from the function without having freed these
allocations. If we don't do the return, we over-write the previous
allocation pointers, so we leak either way.
Spotted with Coverity.
[ Fixed by tytso to set is and bs to NULL after freeing these
pointers, in case in the retry loop we later end up triggering an
error causing a jump to cleanup, at which point we could have a double
free bug. -- Ted ]
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull gcc "asm goto" miscompilation workaround from Ingo Molnar:
"This is the fix for the GCC miscompilation discussed in the following
lkml thread:
[x86] BUG: unable to handle kernel paging request at 00740060
The bug in GCC has been fixed by Jakub and the fix will be part of the
GCC 4.8.2 release expected to be released next week - so the quirk's
version test checks for <= 4.8.1.
The quirk is only added to compiler-gcc4.h and not to the higher level
compiler.h because all asm goto uses are behind a feature check"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
compiler/gcc4: Add quirk for 'asm goto' miscompilation bug
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"A build fix and a reboot quirk"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/reboot: Add reboot quirk for Dell Latitude E5410
x86, build, pci: Fix PCI_MSI build on !SMP
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fix from Vineet Gupta:
"Fix for broken gdb 'jump'"
* tag 'arc-fixes-for-3.12-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Ignore ptrace SETREGSET request for synthetic register "stop_pc"
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The unicast connectionless data reception feature is actually support
and has been supported all along. Mark it as supported in the L2CAP
features bitmask.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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The implementation actually supports the L2CAP connectionless data
channel. So set it as supported in the fixed channels bitmask.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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