For memcpy, the source pages are memset to zero only when --cycles is
used. This leads to wildly different results with or without --cycles,
since all sources pages are likely to be mapped to the same zero page
without explicit writes.
Before this fix:
$ export cmd="./perf stat -e LLC-loads -- ./perf bench \
mem memcpy -s 1024MB -l 100 -f default"
$ $cmd
2,935,826 LLC-loads
3.821677452 seconds time elapsed
$ $cmd --cycles
217,533,436 LLC-loads
8.616725985 seconds time elapsed
After this fix:
$ $cmd
214,459,686 LLC-loads
8.674301124 seconds time elapsed
$ $cmd --cycles
214,758,651 LLC-loads
8.644480006 seconds time elapsed
Fixes: 47b5757bac ("perf bench mem: Move boilerplate memory allocation to the infrastructure")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel@axis.com
Link: http://lore.kernel.org/lkml/20200810133404.30829-1-vincent.whitchurch@axis.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit fbd705a0c6 ("sched: Introduce the 'trace_sched_waking'
tracepoint") added sched_waking tracepoint which should be preferred
over sched_wakeup when analyzing scheduling delays.
Update 'perf sched record' to collect sched_waking events if it exists
and fallback to sched_wakeup if it does not. Similarly, update timehist
command to skip sched_wakeup events if the session includes sched_waking
(ie., sched_waking is preferred over sched_wakeup).
Signed-off-by: David Ahern <dsahern@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lore.kernel.org/lkml/20200807164844.44870-1-dsahern@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
pte lock is never acquired in-IRQ context so it does not require interrupts
to be disabled. The lock is a regular spinlock which cannot be acquired
with interrupts disabled on RT.
RT complains about pte_lock() in __text_poke() because it's invoked after
disabling interrupts.
__text_poke() has to disable interrupts as use_temporary_mm() expects
interrupts to be off because it invokes switch_mm_irqs_off() and uses
per-CPU (current active mm) data.
Move the PTE lock handling outside the interrupt disabled region.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by; Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20200813105026.bvugytmsso6muljw@linutronix.de
This is the sync up with the canonical definition of the
display protocol in Xen.
1. Add protocol version as an integer
Version string, which is in fact an integer, is hard to handle in the
code that supports different protocol versions. To simplify that
also add the version as an integer.
2. Pass buffer offset with XENDISPL_OP_DBUF_CREATE
There are cases when display data buffer is created with non-zero
offset to the data start. Handle such cases and provide that offset
while creating a display buffer.
3. Add XENDISPL_OP_GET_EDID command
Add an optional request for reading Extended Display Identification
Data (EDID) structure which allows better configuration of the
display connectors over the configuration set in XenStore.
With this change connectors may have multiple resolutions defined
with respect to detailed timing definitions and additional properties
normally provided by displays.
If this request is not supported by the backend then visible area
is defined by the relevant XenStore's "resolution" property.
If backend provides extended display identification data (EDID) with
XENDISPL_OP_GET_EDID request then EDID values must take precedence
over the resolutions defined in XenStore.
4. Bump protocol version to 2.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20200813062113.11030-5-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Add YUYV to supported formats, so the frontend can work with the
formats used by cameras and other HW.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://lore.kernel.org/r/20200813062113.11030-4-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
The patch c575b7eeb8: "drm/xen-front: Add support for Xen PV
display frontend" from Apr 3, 2018, leads to the following static
checker warning:
drivers/gpu/drm/xen/xen_drm_front_gem.c:140 xen_drm_front_gem_create()
warn: passing zero to 'ERR_CAST'
drivers/gpu/drm/xen/xen_drm_front_gem.c
133 struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
134 size_t size)
135 {
136 struct xen_gem_object *xen_obj;
137
138 xen_obj = gem_create(dev, size);
139 if (IS_ERR_OR_NULL(xen_obj))
140 return ERR_CAST(xen_obj);
Fix this and the rest of misused places with IS_ERR_OR_NULL in the
driver.
Fixes: c575b7eeb8: "drm/xen-front: Add support for Xen PV display frontend"
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200813062113.11030-3-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
It is possible that the scatter-gather table during dmabuf import has
non-zero offset of the data, but user-space doesn't expect that.
Fix this by failing the import, so user-space doesn't access wrong data.
Fixes: bf8dc55b13 ("xen/gntdev: Implement dma-buf import functionality")
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200813062113.11030-2-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Freeing chip on error may lead to an Oops at the next time
the system goes to resume. Fix this by removing all
snd_echo_free() calls on error.
Fixes: 47b5d028fd ("ALSA: Echoaudio - Add suspend support #2")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20200813074632.17022-1-dinghao.liu@zju.edu.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
In irq_set_irqchip_state(), the irq descriptor is not unlocked after an
error is encountered. While that should never happen in practice, a buggy
driver may trigger it. This would result in a lockup, so fix it.
Fixes: 1d0326f352 ("genirq: Check irq_data_get_irq_chip() return value before use")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200811180012.80269-1-linux@roeck-us.net
In skcipher_accept_parent_nokey() the whole af_alg_ctx structure is
cleared by memset() after allocation, so add such memset() also to
aead_accept_parent_nokey() so that the new "init" field is also
initialized to zero. Without that the initial ctx->init checks might
randomly return true and cause errors.
While there, also remove the redundant zero assignments in both
functions.
Found via libkcapi testsuite.
Cc: Stephan Mueller <smueller@chronox.de>
Fixes: f3c802a1f3 ("crypto: algif_aead - Only wake up when ctx->more is zero")
Suggested-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The DT node full name is currently being used in regmap_config
which in turn is used to create the regmap debugfs directories.
This name however is not guaranteed to be unique and the regmap
debugfs registration can fail in the cases where the syscon nodes
have the same unit-address but are present in different DT node
hierarchies. Replace this logic using the syscon reg resource
address instead (inspired from logic used while creating platform
devices) to ensure a unique name is given for each syscon.
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The event handler loop must be run with interrupts disabled.
Otherwise we will have a warning:
[ 1970.785649] irq 31 handler lineevent_irq_handler+0x0/0x20 enabled interrupts
[ 1970.792739] WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:159 __handle_irq_event_percpu+0x162/0x170
[ 1970.860732] RIP: 0010:__handle_irq_event_percpu+0x162/0x170
...
[ 1970.946994] Call Trace:
[ 1970.949446] <IRQ>
[ 1970.951471] handle_irq_event_percpu+0x2c/0x80
[ 1970.955921] handle_irq_event+0x23/0x43
[ 1970.959766] handle_simple_irq+0x57/0x70
[ 1970.963695] generic_handle_irq+0x42/0x50
[ 1970.967717] dln2_rx+0xc1/0x210 [dln2]
[ 1970.971479] ? usb_hcd_unmap_urb_for_dma+0xa6/0x1c0
[ 1970.976362] __usb_hcd_giveback_urb+0x77/0xe0
[ 1970.980727] usb_giveback_urb_bh+0x8e/0xe0
[ 1970.984837] tasklet_action_common.isra.0+0x4a/0xe0
...
Recently xHCI driver switched to tasklets in the commit 36dc01657b
("usb: host: xhci: Support running urb giveback in tasklet context").
The handle_irq_event_* functions are expected to be called with interrupts
disabled and they rightfully complain here because we run in tasklet context
with interrupts enabled.
Use a event spinlock to protect event handler from being interrupted.
Note, that there are only two users of this GPIO and ADC drivers and both of
them are using generic_handle_irq() which makes above happen.
Fixes: 338a128142 ("mfd: Add support for Diolan DLN-2 devices")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The current unbinding process for Madera has some issues. The trouble
is runtime PM is disabled as the first step of the process, but
some of the drivers release IRQs causing regmap IRQ to issue a
runtime get which fails. To allow runtime PM to remain enabled during
mfd_remove_devices, the DCVDD regulator must remain available. In
the case of external DCVDD's this is simple, the regulator can simply
be disabled/put after the call to mfd_remove_devices. However, in
the case of an internally supplied DCVDD the regulator needs to be
released after the other MFD children depending on it.
Use the new MFD mfd_remove_devices_late functionality to split
the DCVDD regulator off from the other drivers.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Currently, the only way to remove MFD children is with a call to
mfd_remove_devices, which will remove all the children. Under
some circumstances it is useful to remove only a subset of the
child devices. For example if some additional clean up is required
between removal of certain child devices.
To accomplish this a level field is added to mfd_cell, the normal
mfd_remove_devices is modified to not remove devices that are set
to a higher level and a corresponding mfd_remove_devices_late
function is added to remove those children.
See further discussion at:
https://lore.kernel.org/lkml/20200616075834.GF2608702@dell/
Suggested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The variable current_bits is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Battery status changes dynamically, so the corresponding registers
need to be considered volatile. Affected registers are:
- fuel gauge
- battery status
- battery interrupt
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Drop the repeated word "that" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The AXP803 can be used both using the RSB proprietary bus, or a more
traditional I2C bus.
Let's add that possibility.
Signed-off-by: Frank Lee <frank@allwinnertech.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This update adds new regmap tables to support the latest DA silicon
which will automatically be selected based on the chip and variant
information read from the device.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The current implementation performs checking in the i2c_probe()
function of the variant_code but does this immediately after the
containing struct has been initialised as all zero. This means the
check for variant code will always default to using the BB tables
and will never select AD. The variant code is subsequently set
by device_init() and later used by the RTC so really it's a little
fortunate this mismatch works.
This update adds raw I2C read access functionality to read the chip
and variant/revision information (common to all revisions) so that
it can subsequently correctly choose the proper regmap tables for
real initialisation.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Remove the I2C unit name to fix the following build warning with
'make dt_binding_check':
Warning (unit_address_vs_reg): /example-0/i2c@0: node has a unit name, but no reg or ranges property
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add DT binding schema for J721e system controller.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Otherwise we get spammed with errors on resume after rtcwake:
cpcap-core spi0.0: Failed to read IRQ status: -108
Note that rtcwake is still capable of waking up the system with
this patch.
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This MFD driver has no user. The keypad driver of this device never made
it into the kernel. Therefore, this driver is useless. Remove it.
Signed-off-by: Michael Walle <michael@walle.cc>
Cc: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Extend current list of helpers to provide support for parent drivers
wishing to match specific child devices to particular OF nodes.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Remove unnecessary '\'s and leading tabs.
This will help to clean-up future diffs when subsequent changes are
made.
Hint: The aforementioned changes follow this patch.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Currently, when a child platform device (sometimes referred to as a
sub-device) is registered via the Multi-Functional Device (MFD) API,
the framework attempts to match the newly registered platform device
with its associated Device Tree (OF) node. Until now, the device has
been allocated the first node found with an identical OF compatible
string. Unfortunately, if there are, say for example '3' devices
which are to be handled by the same driver and therefore have the same
compatible string, each of them will be allocated a pointer to the
*first* node.
An example Device Tree entry might look like this:
mfd_of_test {
compatible = "mfd,of-test-parent";
#address-cells = <0x02>;
#size-cells = <0x02>;
child@aaaaaaaaaaaaaaaa {
compatible = "mfd,of-test-child";
reg = <0xaaaaaaaa 0xaaaaaaaa 0 0x11>,
<0xbbbbbbbb 0xbbbbbbbb 0 0x22>;
};
child@cccccccc {
compatible = "mfd,of-test-child";
reg = <0x00000000 0xcccccccc 0 0x33>;
};
child@dddddddd00000000 {
compatible = "mfd,of-test-child";
reg = <0xdddddddd 0x00000000 0 0x44>;
};
};
When used with example sub-device registration like this:
static const struct mfd_cell mfd_of_test_cell[] = {
OF_MFD_CELL("mfd-of-test-child", NULL, NULL, 0, 0, "mfd,of-test-child"),
OF_MFD_CELL("mfd-of-test-child", NULL, NULL, 0, 1, "mfd,of-test-child"),
OF_MFD_CELL("mfd-of-test-child", NULL, NULL, 0, 2, "mfd,of-test-child")
};
... the current implementation will result in all devices being allocated
the first OF node found containing a matching compatible string:
[0.712511] mfd-of-test-child mfd-of-test-child.0: Probing platform device: 0
[0.712710] mfd-of-test-child mfd-of-test-child.0: Using OF node: child@aaaaaaaaaaaaaaaa
[0.713033] mfd-of-test-child mfd-of-test-child.1: Probing platform device: 1
[0.713381] mfd-of-test-child mfd-of-test-child.1: Using OF node: child@aaaaaaaaaaaaaaaa
[0.713691] mfd-of-test-child mfd-of-test-child.2: Probing platform device: 2
[0.713889] mfd-of-test-child mfd-of-test-child.2: Using OF node: child@aaaaaaaaaaaaaaaa
After this patch each device will be allocated a unique OF node:
[0.712511] mfd-of-test-child mfd-of-test-child.0: Probing platform device: 0
[0.712710] mfd-of-test-child mfd-of-test-child.0: Using OF node: child@aaaaaaaaaaaaaaaa
[0.713033] mfd-of-test-child mfd-of-test-child.1: Probing platform device: 1
[0.713381] mfd-of-test-child mfd-of-test-child.1: Using OF node: child@cccccccc
[0.713691] mfd-of-test-child mfd-of-test-child.2: Probing platform device: 2
[0.713889] mfd-of-test-child mfd-of-test-child.2: Using OF node: child@dddddddd00000000
Which is fine if all OF nodes are identical. However if we wish to
apply an attribute to particular device, we really need to ensure the
correct OF node will be associated with the device containing the
correct address. We accomplish this by matching the device's address
expressed in DT with one provided during sub-device registration.
Like this:
static const struct mfd_cell mfd_of_test_cell[] = {
OF_MFD_CELL_REG("mfd-of-test-child", NULL, NULL, 0, 1, "mfd,of-test-child", 0xdddddddd00000000),
OF_MFD_CELL_REG("mfd-of-test-child", NULL, NULL, 0, 2, "mfd,of-test-child", 0xaaaaaaaaaaaaaaaa),
OF_MFD_CELL_REG("mfd-of-test-child", NULL, NULL, 0, 3, "mfd,of-test-child", 0x00000000cccccccc)
};
This will ensure a specific device (designated here using the
platform_ids; 1, 2 and 3) is matched with a particular OF node:
[0.712511] mfd-of-test-child mfd-of-test-child.0: Probing platform device: 0
[0.712710] mfd-of-test-child mfd-of-test-child.0: Using OF node: child@dddddddd00000000
[0.713033] mfd-of-test-child mfd-of-test-child.1: Probing platform device: 1
[0.713381] mfd-of-test-child mfd-of-test-child.1: Using OF node: child@aaaaaaaaaaaaaaaa
[0.713691] mfd-of-test-child mfd-of-test-child.2: Probing platform device: 2
[0.713889] mfd-of-test-child mfd-of-test-child.2: Using OF node: child@cccccccc
This implementation is still not infallible, hence the mention of
"best effort" in the commit subject. Since we have not *insisted* on
the existence of 'reg' properties (in some scenarios they just do not
make sense) and no device currently uses the new 'of_reg' attribute,
we have to make an on-the-fly judgement call whether to associate the
OF node anyway. Which we do in cases where parent drivers haven't
specified a particular OF node to match to. So there is a *slight*
possibility of the following result (note: the implementation here is
convoluted, but it shows you one means by which this process can
still break):
/*
* First entry will match to the first OF node with matching compatible
* Second will fail, since the first took its OF node and is no longer available
* Third will succeed
*/
static const struct mfd_cell mfd_of_test_cell[] = {
OF_MFD_CELL("mfd-of-test-child", NULL, NULL, 0, 1, "mfd,of-test-child"),
OF_MFD_CELL_REG("mfd-of-test-child", NULL, NULL, 0, 2, "mfd,of-test-child", 0xaaaaaaaaaaaaaaaa),
OF_MFD_CELL_REG("mfd-of-test-child", NULL, NULL, 0, 3, "mfd,of-test-child", 0x00000000cccccccc)
};
The result:
[0.753869] mfd-of-test-parent mfd_of_test: Registering 3 devices
[0.756597] mfd-of-test-child: Failed to locate of_node [id: 2]
[0.759999] mfd-of-test-child mfd-of-test-child.1: Probing platform device: 1
[0.760314] mfd-of-test-child mfd-of-test-child.1: Using OF node: child@aaaaaaaaaaaaaaaa
[0.760908] mfd-of-test-child mfd-of-test-child.2: Probing platform device: 2
[0.761183] mfd-of-test-child mfd-of-test-child.2: No OF node associated with this device
[0.761621] mfd-of-test-child mfd-of-test-child.3: Probing platform device: 3
[0.761899] mfd-of-test-child mfd-of-test-child.3: Using OF node: child@cccccccc
We could code around this with some pre-parsing semantics, but the
added complexity required to cover each and every corner-case is not
justified. Merely patching the current failing (via this patch) is
already working with some pretty small corner-cases. Other issues
should be patched in the parent drivers which can be achieved simply
by implementing OF_MFD_CELL_REG().
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Drivers:
- ds1374: use watchdog core
- pcf2127: add alarm and pcf2129 support
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Merge tag 'rtc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Not much this cycle - mostly non urgent driver fixes:
- ds1374: use watchdog core
- pcf2127: add alarm and pcf2129 support"
* tag 'rtc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: pcf2127: fix alarm handling
rtc: pcf2127: add alarm support
rtc: pcf2127: add pca2129 device id
rtc: max77686: Fix wake-ups for max77620
rtc: ds1307: provide an indication that the watchdog has fired
rtc: ds1374: remove unused define
rtc: ds1374: fix RTC_DRV_DS1374_WDT dependencies
rtc: cleanup obsolete comment about struct rtc_class_ops
rtc: pl031: fix set_alarm by adding back call to alarm_irq_enable
rtc: ds1374: wdt: Use watchdog core for watchdog part
rtc: Replace HTTP links with HTTPS ones
rtc: goldfish: Enable interrupt in set_alarm() when necessary
rtc: max77686: Do not allow interrupt to fire before system resume
rtc: imxdi: fix trivial typos
rtc: cpcap: fix range
When a process exits, we cancel whatever requests it has pending that
are referencing the file table. However, if a link is holding a
reference, then we cannot find it by simply looking at the inflight
list.
Enable checking of the poll and timeout list to find the link, and
cancel it appropriately.
Cc: stable@vger.kernel.org
Reported-by: Josef <josef.grieb@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This reverts commit 06a7a37be5.
The bug was already fixed, this added a dup include.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We must accept an empty mask in store_rps_map(), or we are not able
to disable RPS on a queue.
Fixes: 07bbecb341 ("net: Restrict receive packets queuing to housekeeping CPUs")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Cc: Alex Belits <abelits@marvell.com>
Cc: Nitesh Narayan Lal <nitesh@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jonathan McDowell says:
====================
net: stmmac: Fix multicast filter on IPQ806x
This pair of patches are the result of discovering a failure to
correctly receive IPv6 multicast packets on such a device (in particular
DHCPv6 requests and RA solicitations). Putting the device into
promiscuous mode, or allmulti, both resulted in such packets correctly
being received. Examination of the vendor driver (nss-gmac from the
qsdk) shows that it does not enable the multicast filter and instead
falls back to allmulti.
Extend the base dwmac1000 driver to fall back when there's no suitable
hardware filter, and update the ipq806x platform to request this.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The IPQ806x does not appear to have a functional multicast ethernet
address filter. This was observed as a failure to correctly receive IPv6
packets on a LAN to the all stations address. Checking the vendor driver
shows that it does not attempt to enable the multicast filter and
instead falls back to receiving all multicast packets, internally
setting ALLMULTI.
Use the new fallback support in the dwmac1000 driver to correctly
achieve the same with the mainline IPQ806x driver. Confirmed to fix IPv6
functionality on an RB3011 router.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we don't have a hardware multicast filter available then instead of
silently failing to listen for the requested ethernet broadcast
addresses fall back to receiving all multicast packets, in a similar
fashion to other drivers with no multicast filter.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David S. Miller <davem@davemloft.net>
With certain configurations, a 64-bit ARCH=um errors
out here with an unknown csum_ipv6_magic() function.
Include the right header file to always have it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
syzbot reported this issue where in the vsock_poll() we find the
socket state at TCP_ESTABLISHED, but 'transport' is null:
general protection fault, probably for non-canonical address 0xdffffc0000000012: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 0 PID: 8227 Comm: syz-executor.2 Not tainted 5.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vsock_poll+0x75a/0x8e0 net/vmw_vsock/af_vsock.c:1038
Call Trace:
sock_poll+0x159/0x460 net/socket.c:1266
vfs_poll include/linux/poll.h:90 [inline]
do_pollfd fs/select.c:869 [inline]
do_poll fs/select.c:917 [inline]
do_sys_poll+0x607/0xd40 fs/select.c:1011
__do_sys_poll fs/select.c:1069 [inline]
__se_sys_poll fs/select.c:1057 [inline]
__x64_sys_poll+0x18c/0x440 fs/select.c:1057
do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
entry_SYSCALL_64_after_hwframe+0x44/0xa9
This issue can happen if the TCP_ESTABLISHED state is set after we read
the vsk->transport in the vsock_poll().
We could put barriers to synchronize, but this can only happen during
connection setup, so we can simply check that 'transport' is valid.
Fixes: c0cfa2d8a7 ("vsock: add multi-transports support")
Reported-and-tested-by: syzbot+a61bac2fcc1a7c6623fe@syzkaller.appspotmail.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The handling of the RXQ/TXQ size granularity design-params had two
problems: it had a 64-bit divide that didn't build on 32-bit platforms,
and it could divide by zero if the NIC supplied 0 as the value of the
design-param. Fix both by checking for 0 and for a granularity bigger
than our min-size; if the granularity <= EFX_MIN_DMAQ_SIZE then it fits
in 32 bits, so we can cast it to u32 for the divide.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Edward Cree <ecree@solarflare.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
sent to all available MDSes once per second now. Other than that, we
have a lot of fixes and cleanups all around the filesystem, including
a tweak to cut down on MDS request resends in multi-MDS setups from
Yanhu and fixups for SELinux symlink labeling and MClientSession
message decoding from Jeff.
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Merge tag 'ceph-for-5.9-rc1' of git://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"Xiubo has completed his work on filesystem client metrics, they are
sent to all available MDSes once per second now.
Other than that, we have a lot of fixes and cleanups all around the
filesystem, including a tweak to cut down on MDS request resends in
multi-MDS setups from Yanhu and fixups for SELinux symlink labeling
and MClientSession message decoding from Jeff"
* tag 'ceph-for-5.9-rc1' of git://github.com/ceph/ceph-client: (22 commits)
ceph: handle zero-length feature mask in session messages
ceph: use frag's MDS in either mode
ceph: move sb->wb_pagevec_pool to be a global mempool
ceph: set sec_context xattr on symlink creation
ceph: remove redundant initialization of variable mds
ceph: fix use-after-free for fsc->mdsc
ceph: remove unused variables in ceph_mdsmap_decode()
ceph: delete repeated words in fs/ceph/
ceph: send client provided metric flags in client metadata
ceph: periodically send perf metrics to MDSes
ceph: check the sesion state and return false in case it is closed
libceph: replace HTTP links with HTTPS ones
ceph: remove unnecessary cast in kfree()
libceph: just have osd_req_op_init() return a pointer
ceph: do not access the kiocb after aio requests
ceph: clean up and optimize ceph_check_delayed_caps()
ceph: fix potential mdsc use-after-free crash
ceph: switch to WARN_ON_ONCE in encode_supported_features()
ceph: add global total_caps to count the mdsc's total caps number
ceph: add check_session_state() helper and make it global
...
Pull more parisc updates from Helge Deller:
- Oscar Carter contributed a patch which fixes parisc's usage of
dereference_function_descriptor() and thus will allow using the
-Wcast-function-type compiler option in the top-level Makefile
- Sven Schnelle fixed a bug in the SBA code to prevent crashes during
kexec
- John David Anglin provided implementations for __smp_store_release()
and __smp_load_acquire barriers() which avoids using the sync
assembler instruction and thus speeds up barrier paths
- Some whitespace cleanups in parisc's atomic.h header file
* 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Implement __smp_store_release and __smp_load_acquire barriers
parisc: mask out enable and reserved bits from sba imask
parisc: Whitespace cleanups in atomic.h
parisc/kernel/ftrace: Remove function callback casts
sections.h: dereference_function_descriptor() returns void pointer
* Improvements and bugfixes for secure VM support, giving reduced startup
time and memory hotplug support.
* Locking fixes in nested KVM code
* Increase number of guests supported by HV KVM to 4094
* Preliminary POWER10 support
ARM:
* Split the VHE and nVHE hypervisor code bases, build the EL2 code
separately, allowing for the VHE code to now be built with instrumentation
* Level-based TLB invalidation support
* Restructure of the vcpu register storage to accomodate the NV code
* Pointer Authentication available for guests on nVHE hosts
* Simplification of the system register table parsing
* MMU cleanups and fixes
* A number of post-32bit cleanups and other fixes
MIPS:
* compilation fixes
x86:
* bugfixes
* support for the SERIALIZE instruction
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more KVM updates from Paolo Bonzini:
"PPC:
- Improvements and bugfixes for secure VM support, giving reduced
startup time and memory hotplug support.
- Locking fixes in nested KVM code
- Increase number of guests supported by HV KVM to 4094
- Preliminary POWER10 support
ARM:
- Split the VHE and nVHE hypervisor code bases, build the EL2 code
separately, allowing for the VHE code to now be built with
instrumentation
- Level-based TLB invalidation support
- Restructure of the vcpu register storage to accomodate the NV code
- Pointer Authentication available for guests on nVHE hosts
- Simplification of the system register table parsing
- MMU cleanups and fixes
- A number of post-32bit cleanups and other fixes
MIPS:
- compilation fixes
x86:
- bugfixes
- support for the SERIALIZE instruction"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (70 commits)
KVM: MIPS/VZ: Fix build error caused by 'kvm_run' cleanup
x86/kvm/hyper-v: Synic default SCONTROL MSR needs to be enabled
MIPS: KVM: Convert a fallthrough comment to fallthrough
MIPS: VZ: Only include loongson_regs.h for CPU_LOONGSON64
x86: Expose SERIALIZE for supported cpuid
KVM: x86: Don't attempt to load PDPTRs when 64-bit mode is enabled
KVM: arm64: Move S1PTW S2 fault logic out of io_mem_abort()
KVM: arm64: Don't skip cache maintenance for read-only memslots
KVM: arm64: Handle data and instruction external aborts the same way
KVM: arm64: Rename kvm_vcpu_dabt_isextabt()
KVM: arm: Add trace name for ARM_NISV
KVM: arm64: Ensure that all nVHE hyp code is in .hyp.text
KVM: arm64: Substitute RANDOMIZE_BASE for HARDEN_EL2_VECTORS
KVM: arm64: Make nVHE ASLR conditional on RANDOMIZE_BASE
KVM: PPC: Book3S HV: Rework secure mem slot dropping
KVM: PPC: Book3S HV: Move kvmppc_svm_page_out up
KVM: PPC: Book3S HV: Migrate hot plugged memory
KVM: PPC: Book3S HV: In H_SVM_INIT_DONE, migrate remaining normal-GFNs to secure-GFNs
KVM: PPC: Book3S HV: Track the state GFNs associated with secure VMs
KVM: PPC: Book3S HV: Disable page merging in H_SVM_INIT_START
...
happened to tag the tree at an earlier point in the history of clk-next.
I must have fat fingered it and checked out an older version of clk-next
on this second computer I'm using.
This time it actually includes more code for Qualcomm SoCs, the AT91
major updates, and some Rockchip SoC clk driver updates as well. I've
corrected this flow so this shouldn't happen again.
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull more clk updates from Stephen Boyd:
"Here's some more updates that missed the last pull request because I
happened to tag the tree at an earlier point in the history of
clk-next. I must have fat fingered it and checked out an older version
of clk-next on this second computer I'm using.
This time it actually includes more code for Qualcomm SoCs, the AT91
major updates, and some Rockchip SoC clk driver updates as well. I've
corrected this flow so this shouldn't happen again"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (83 commits)
clk: bcm2835: Do not use prediv with bcm2711's PLLs
clk: drop unused function __clk_get_flags
clk: hsdk: Fix bad dependency on IOMEM
dt-bindings: clock: Fix YAML schemas for LPASS clocks on SC7180
clk: mmp: avoid missing prototype warning
clk: sparx5: Add Sparx5 SoC DPLL clock driver
dt-bindings: clock: sparx5: Add bindings include file
clk: qoriq: add LS1021A core pll mux options
clk: clk-atlas6: fix return value check in atlas6_clk_init()
clk: tegra: pll: Improve PLLM enable-state detection
clk: X1000: Add support for calculat REFCLK of USB PHY.
clk: JZ4780: Reformat the code to align it.
clk: JZ4780: Add functions for enable and disable USB PHY.
clk: Ingenic: Add RTC related clocks for Ingenic SoCs.
dt-bindings: clock: Add tabs to align code.
dt-bindings: clock: Add RTC related clocks for Ingenic SoCs.
clk: davinci: Use fallthrough pseudo-keyword
clk: imx: Use fallthrough pseudo-keyword
clk: qcom: gcc-sdm660: Fix up gcc_mss_mnoc_bimc_axi_clk
clk: qcom: gcc-sdm660: Add missing modem reset
...
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Merge tag 'linux-watchdog-5.9-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- f71808e_wdt imporvements
- dw_wdt improvements
- mlx-wdt: support new watchdog type with longer timeout period
- fallthrough pseudo-keyword replacements
- overall small fixes and improvements
* tag 'linux-watchdog-5.9-rc1' of git://www.linux-watchdog.org/linux-watchdog: (35 commits)
watchdog: rti-wdt: balance pm runtime enable calls
watchdog: rti-wdt: attach to running watchdog during probe
watchdog: add support for adjusting last known HW keepalive time
watchdog: use __watchdog_ping in startup
watchdog: softdog: Add options 'soft_reboot_cmd' and 'soft_active_on_boot'
watchdog: pcwd_usb: remove needless check before usb_free_coherent()
watchdog: Replace HTTP links with HTTPS ones
dt-bindings: watchdog: renesas,wdt: Document r8a774e1 support
watchdog: initialize device before misc_register
watchdog: booke_wdt: Add common nowayout parameter driver
watchdog: scx200_wdt: Use fallthrough pseudo-keyword
watchdog: Use fallthrough pseudo-keyword
watchdog: f71808e_wdt: do stricter parameter validation
watchdog: f71808e_wdt: clear watchdog timeout occurred flag
watchdog: f71808e_wdt: remove use of wrong watchdog_info option
watchdog: f71808e_wdt: indicate WDIOF_CARDRESET support in watchdog_info.options
docs: watchdog: codify ident.options as superset of possible status flags
dt-bindings: watchdog: Add compatible for QCS404, SC7180, SDM845, SM8150
dt-bindings: watchdog: Convert QCOM watchdog timer bindings to YAML
watchdog: dw_wdt: Add DebugFS files
...
core:
- Fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi
- Remove null check for kfree in drm_dev_release.
- Fix DRM_FORMAT_MOD_AMLOGIC_FBC definition.
- re-added docs for drm_gem_flink_ioctl()
- add orientation quirk for ASUS T103HAF
ttm:
- ttm: fix page-offset calculation within TTM
- revert patch causing vmwgfx regressions
fbcon:
- Fix a fbcon OOB read in fbdev, found by syzbot.
vga:
- Mark vga_tryget static as it's not used elsewhere.
amdgpu:
- Re-add spelling typo fix
- Sienna Cichlid fixes
- Navy Flounder fixes
- DC fixes
- SMU i2c fix
- Power fixes
vmwgfx:
- regression fixes for modesetting crashes
- misc fixes
xlnx:
- Small fixes to xlnx.
omap:
- Fix mode initialization in omap_connector_mode_valid().
- force runtime PM suspend on system suspend
tidss:
- fix modeset init for DPI panels
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Merge tag 'drm-next-2020-08-12' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"This has a few vmwgfx regression fixes we hit from the merge window
(one in TTM), it also has a bunch of amdgpu fixes along with a
scattering everywhere else.
core:
- Fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi
- Remove null check for kfree in drm_dev_release.
- Fix DRM_FORMAT_MOD_AMLOGIC_FBC definition.
- re-added docs for drm_gem_flink_ioctl()
- add orientation quirk for ASUS T103HAF
ttm:
- ttm: fix page-offset calculation within TTM
- revert patch causing vmwgfx regressions
fbcon:
- Fix a fbcon OOB read in fbdev, found by syzbot.
vga:
- Mark vga_tryget static as it's not used elsewhere.
amdgpu:
- Re-add spelling typo fix
- Sienna Cichlid fixes
- Navy Flounder fixes
- DC fixes
- SMU i2c fix
- Power fixes
vmwgfx:
- regression fixes for modesetting crashes
- misc fixes
xlnx:
- Small fixes to xlnx.
omap:
- Fix mode initialization in omap_connector_mode_valid().
- force runtime PM suspend on system suspend
tidss:
- fix modeset init for DPI panels"
* tag 'drm-next-2020-08-12' of git://anongit.freedesktop.org/drm/drm: (70 commits)
drm/ttm: revert "drm/ttm: make TT creation purely optional v3"
drm/vmwgfx: fix spelling mistake "Cant" -> "Can't"
drm/vmwgfx: fix spelling mistake "Cound" -> "Could"
drm/vmwgfx/ldu: Use drm_mode_config_reset
drm/vmwgfx/sou: Use drm_mode_config_reset
drm/vmwgfx/stdu: Use drm_mode_config_reset
drm/vmwgfx: Fix two list_for_each loop exit tests
drm/vmwgfx: Use correct vmw_legacy_display_unit pointer
drm/vmwgfx: Use struct_size() helper
drm/amdgpu: Fix bug where DPM is not enabled after hibernate and resume
drm/amd/powerplay: put VCN/JPEG into PG ungate state before dpm table setup(V3)
drm/amd/powerplay: update swSMU VCN/JPEG PG logics
drm/amdgpu: use mode1 reset by default for sienna_cichlid
drm/amdgpu/smu: rework i2c adpater registration
drm/amd/display: Display goes blank after inst
drm/amd/display: Change null plane state swizzle mode to 4kb_s
drm/amd/display: Use helper function to check for HDMI signal
drm/amd/display: AMD OUI (DPCD 0x00300) skipped on some sink
drm/amd/display: Fix logger context
drm/amd/display: populate new dml variable
...
