- fix handling of probing errors in omapfb (Arvind Yadav)
- remove incorrect __exit markups in few drivers (Dmitry Torokhov)
- fix boot time logo support for drivers using deferred probe (Takeshi Kihara)
- fix DMA allocation size for ARM CLCD driver (Liam Beguin)
- add support for specifying size via xenstore in xen-frontfb (Juergen Gross)
- support for AUS mode in imxfb driver (Martin Kaiser)
- fix buffer on stack usage in udlfb driver (Maksim Salau)
- probe failure path fixup in sm501fb driver (Alexey Khoroshilov)
- fix config dependency loop for stifb driver (Arnd Bergmann)
- misc cleanups
(Joe Perches, Christophe Leroy, Karim Eshapa, Pushkar Jambhlekar)
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Merge tag 'fbdev-v4.12' of git://github.com/bzolnier/linux
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here, just a couple of small bugfixes,
improvements and cleanups.
- fix handling of probing errors in omapfb (Arvind Yadav)
- remove incorrect __exit markups in few drivers (Dmitry Torokhov)
- fix boot time logo support for drivers using deferred probe
(Takeshi Kihara)
- fix DMA allocation size for ARM CLCD driver (Liam Beguin)
- add support for specifying size via xenstore in xen-frontfb
(Juergen Gross)
- support for AUS mode in imxfb driver (Martin Kaiser)
- fix buffer on stack usage in udlfb driver (Maksim Salau)
- probe failure path fixup in sm501fb driver (Alexey Khoroshilov)
- fix config dependency loop for stifb driver (Arnd Bergmann)
- misc cleanups (Joe Perches, Christophe Leroy, Karim Eshapa, Pushkar
Jambhlekar)"
* tag 'fbdev-v4.12' of git://github.com/bzolnier/linux:
fbdev: sti: don't select CONFIG_VT
drivers/video/fbdev/omap/lcd_mipid.c: Use time comparison kernel macros
sm501fb: don't return zero on failure path in sm501fb_start()
video: fbdev: udlfb: Fix buffer on stack
video: console: Remove reference to CONFIG_8xx
dt-bindings: display: imx: entry for AUS mode
video: fbdev: imxfb: support AUS mode
drivers/video/fbdev: Fixing coding guidelines in acornfb.c
xen, fbfront: add support for specifying size via xenstore
video: ARM CLCD: fix dma allocation size
drivers/video: Convert remaining uses of pr_warning to pr_warn
video/logo: tidyup fb_logo_late_init initcall timing
video: fbdev: i810: remove incorrect __exit markups
video: fbdev: pmag-aa-fb: remove incorrect __exit markups
video: fbdev: pmagb-b-fb: remove incorrect __exit markups
video: fbdev: pmag-ba-fb: remove incorrect __exit markups
omapfb: dss: Handle return errors in dss_init_ports()
Pull block fixes from Jens Axboe:
"A smaller collection of fixes that should go into -rc1. This contains:
- A fix from Christoph, fixing a regression with the WRITE_SAME and
partial completions. Caused a BUG() on ppc.
- Fixup for __blk_mq_stop_hw_queues(), it should be static. From
Colin.
- Removal of dmesg error messages on elevator switching, when invoked
from sysfs. From me.
- Fix for blk-stat, using this_cpu_ptr() in a section only protected
by rcu_read_lock(). This breaks when PREEMPT_RCU is enabled. From
me.
- Two fixes for BFQ from Paolo, one fixing a crash and one updating
the documentation.
- An error handling lightnvm memory leak, from Rakesh.
- The previous blk-mq hot unplug lock reversal depends on the CPU
hotplug rework that isn't in mainline yet. This caused a lockdep
splat when people unplugged CPUs with blk-mq devices. From Wanpeng.
- A regression fix for DIF/DIX on blk-mq. From Wen"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: handle partial completions for special payload requests
blk-mq: NVMe 512B/4K+T10 DIF/DIX format returns I/O error on dd with split op
blk-stat: don't use this_cpu_ptr() in a preemptable section
elevator: remove redundant warnings on IO scheduler switch
block, bfq: stress that low_latency must be off to get max throughput
block, bfq: use pointer entity->sched_data only if set
nvme: lightnvm: fix memory leak
blk-mq: make __blk_mq_stop_hw_queues static
lightnvm: remove unused rq parameter of nvme_nvm_rqtocmd() to kill warning
block/mq: fix potential deadlock during cpu hotplug
FTP services were shutdown some weeks ago, so the FTP URL
does not work anymore. Fix this by replacing it with
corresponding HTTPS URL.
Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
NAND, from Boris:
"""
- some minor fixes/improvements on existing drivers (fsmc, gpio, ifc,
davinci, brcmnand, omap)
- a huge cleanup/rework of the denali driver accompanied with core
fixes/improvements to simplify the driver code
- a complete rewrite of the atmel driver to support new DT bindings
make future evolution easier
- the addition of per-vendor detection/initialization steps to avoid
extending the nand_ids table with more extended-id entries
"""
SPI NOR, from Cyrille:
"""
- fixes in the hisi SPI controller driver.
- fixes in the intel SPI controller driver.
- fixes in the Mediatek SPI controller driver.
- fixes to some SPI flash memories not supported the Chip Erase command.
- add support to some new memory parts (Winbond, Macronix, Micron, ESMT).
- add new driver for the STM32 QSPI controller.
"""
And a few fixes for Gemini and Versatile platforms on physmap-of
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Merge tag 'for-linus-20170510' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"NAND, from Boris:
- some minor fixes/improvements on existing drivers (fsmc, gpio, ifc,
davinci, brcmnand, omap)
- a huge cleanup/rework of the denali driver accompanied with core
fixes/improvements to simplify the driver code
- a complete rewrite of the atmel driver to support new DT bindings
make future evolution easier
- the addition of per-vendor detection/initialization steps to avoid
extending the nand_ids table with more extended-id entries
SPI NOR, from Cyrille:
- fixes in the hisi, intel and Mediatek SPI controller drivers
- fixes to some SPI flash memories not supporting the Chip Erase
command.
- add support to some new memory parts (Winbond, Macronix, Micron,
ESMT).
- add new driver for the STM32 QSPI controller
And a few fixes for Gemini and Versatile platforms on physmap-of"
* tag 'for-linus-20170510' of git://git.infradead.org/linux-mtd: (100 commits)
MAINTAINERS: Update NAND subsystem git repositories
mtd: nand: gpio: update binding
mtd: nand: add ooblayout for old hamming layout
mtd: oxnas_nand: Allocating more than necessary in probe()
dt-bindings: mtd: Document the STM32 QSPI bindings
mtd: mtk-nor: set controller's address width according to nor flash
mtd: spi-nor: add driver for STM32 quad spi flash controller
mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program
mtd: nand: davinci: add comment on NAND subpage write status on keystone
mtd: nand: omap2: Fix partition creation via cmdline mtdparts
mtd: nand: NULL terminate a of_device_id table
mtd: nand: Fix a couple error codes
mtd: nand: allow drivers to request minimum alignment for passed buffer
mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset
mtd: nand: denali: allow to override revision number
mtd: nand: denali_dt: use pdev instead of ofdev for platform_device
mtd: nand: denali_dt: remove dma-mask DT property
mtd: nand: denali: support 64bit capable DMA engine
mtd: nand: denali_dt: enable HW_ECC_FIXUP for Altera SOCFPGA variant
mtd: nand: denali: support HW_ECC_FIXUP capability
...
The Microchip 23k256 is a 32K Byte SRAM connected via SPI.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
[Brian: fixed copyright to be in this millenium]
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
In anticipation of supporting chips that need it, extend the size of
struct flash_info's 'jedec_id' field to make room 2 byte of extended
device information as well as add code to fetch this data during
jedec_probe().
Cc: cphealy@gmail.com
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
"For" loop in jedec_probe can be simplified to not need counter
'i'. Convert the code and get rid of the variable.
Cc: cphealy@gmail.com
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Lion's share of calls to pr_debug in this driver follow the pattern of
pr_debug("%s <message>", dev_name(<dev>), <arguments>), which should
be semantically identical to dev_dbg(<dev>, "<message>", <arguments>),
so replace such occurencies to simplify the code.
Convert the small minority of pr_debug that do not follow pattern from
above to use dev_dbg as well, for the sake of consistency.
Convert similar patter of printk(KERN_ERR, "%s: ...", dev_name(...),
...) to use dev_err instead.
No functional change intended.
Cc: cphealy@gmail.com
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Change the following:
- Replace indentation between type and name of local variable from
tabs to spaces
- Replace magic number 0x1F with CFI_MFR_ATMEL macro
- Replace variable 'tmp' with 'ret' and 'i' where appropriate
- Reformat multi-line comments and add newlines where appropriate
No functional change intended.
Cc: cphealy@gmail.com
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Shubham was recently asking on netdev why in arm64 JIT we don't multiply
the index for accessing the tail call map by 8. That led me into testing
out arm64 JIT wrt tail calls and it turned out I got a NULL pointer
dereference on the tail call.
The buggy access is at:
prog = array->ptrs[index];
if (prog == NULL)
goto out;
[...]
00000060: d2800e0a mov x10, #0x70 // #112
00000064: f86a682a ldr x10, [x1,x10]
00000068: f862694b ldr x11, [x10,x2]
0000006c: b40000ab cbz x11, 0x00000080
[...]
The code triggering the crash is f862694b. x1 at the time contains the
address of the bpf array, x10 offsetof(struct bpf_array, ptrs). Meaning,
above we load the pointer to the program at map slot 0 into x10. x10
can then be NULL if the slot is not occupied, which we later on try to
access with a user given offset in x2 that is the map index.
Fix this by emitting the following instead:
[...]
00000060: d2800e0a mov x10, #0x70 // #112
00000064: 8b0a002a add x10, x1, x10
00000068: d37df04b lsl x11, x2, #3
0000006c: f86b694b ldr x11, [x10,x11]
00000070: b40000ab cbz x11, 0x00000084
[...]
This basically adds the offset to ptrs to the base address of the bpf
array we got and we later on access the map with an index * 8 offset
relative to that. The tail call map itself is basically one large area
with meta data at the head followed by the array of prog pointers.
This makes tail calls working again, tested on Cavium ThunderX ARMv8.
Fixes: ddb55992b0 ("arm64: bpf: implement bpf_tail_call() helper")
Reported-by: Shubham Bansal <illusionist.neo@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix error path while dma open channel issue. Also, no need to check output
on NULL if it's never returned.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Julian Wiedmann says:
====================
s390/net fixes
some qeth fixes for -net, the OSM/OSN one being the most crucial.
Please also queue these up for stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 5f78e29cee ("qeth: optimize IP handling in rx_mode callback")
added new hash tables, but missed to initialize them.
Fixes: 5f78e29cee ("qeth: optimize IP handling in rx_mode callback")
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Access card->dev only after checking whether's its valid.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit b4d72c08b3 ("qeth: bridgeport support - basic control")
broke the support for OSM and OSN devices as follows:
As OSM and OSN are L2 only, qeth_core_probe_device() does an early
setup by loading the l2 discipline and calling qeth_l2_probe_device().
In this context, adding the l2-specific bridgeport sysfs attributes
via qeth_l2_create_device_attributes() hits a BUG_ON in fs/sysfs/group.c,
since the basic sysfs infrastructure for the device hasn't been
established yet.
Note that OSN actually has its own unique sysfs attributes
(qeth_osn_devtype), so the additional attributes shouldn't be created
at all.
For OSM, add a new qeth_l2_devtype that contains all the common
and l2-specific sysfs attributes.
When qeth_core_probe_device() does early setup for OSM or OSN, assign
the corresponding devtype so that the ccwgroup probe code creates the
full set of sysfs attributes.
This allows us to skip qeth_l2_create_device_attributes() in case
of an early setup.
Any device that can't do early setup will initially have only the
generic sysfs attributes, and when it's probed later
qeth_l2_probe_device() adds the l2-specific attributes.
If an early-setup device is removed (by calling ccwgroup_ungroup()),
device_unregister() will - using the devtype - delete the
l2-specific attributes before qeth_l2_remove_device() is called.
So make sure to not remove them twice.
What complicates the issue is that qeth_l2_probe_device() and
qeth_l2_remove_device() is also called on a device when its
layer2 attribute changes (ie. its layer mode is switched).
For early-setup devices this wouldn't work properly - we wouldn't
remove the l2-specific attributes when switching to L3.
But switching the layer mode doesn't actually make any sense;
we already decided that the device can only operate in L2!
So just refuse to switch the layer mode on such devices. Note that
OSN doesn't have a layer2 attribute, so we only need to special-case
OSM.
Based on an initial patch by Ursula Braun.
Fixes: b4d72c08b3 ("qeth: bridgeport support - basic control")
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When setting up the device from within the layer discipline's
probe routine, creating the layer-specific sysfs attributes can fail.
Report this error back to the caller, and handle it by
releasing the layer discipline.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
[jwi: updated commit msg, moved an OSN change to a subsequent patch]
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a potential unnecessary refcount decrement on error path of
put_device(&pb->mii_bus->dev), as it is possible to avoid the
of_mdio_find_bus() call if mux_bus is specified by the calling function.
The same put_device() is not called in the error path if the
devm_kzalloc of pb fails. This caused the variable used in the
put_device() to be changed, as the pb pointer was obviously not set up.
There is an unnecessary of_node_get() on child_bus_node if the
of_mdiobus_register() is successful, as the
for_each_available_child_of_node() automatically increments this.
Thus the refcount on this node will always be +1 more than it should be.
There is no of_node_put() on child_bus_node if the of_mdiobus_register()
call fails.
Finally, it is lacking devm_kfree() of pb in the error path. While this
might not be technically necessary, it was present in other parts of the
function. So, I am adding it where necessary to make it uniform.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: f20e6657a8 ("mdio: mux: Enhanced MDIO mux framework for integrated multiplexers")
Fixes: 0ca2997d14 ("netdev/of/phy: Add MDIO bus multiplexer support.")
Signed-off-by: David S. Miller <davem@davemloft.net>
Like commit 657831ffc3 ("dccp/tcp: do not inherit mc_list from parent")
we should clear ipv6_mc_list etc. for IPv6 sockets too.
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently rcode is being initialized to NX_RCODE_SUCCESS and later it
is checked to see if it is not NX_RCODE_SUCCESS which is never true. It
appears that there is an unintentional missing assignment of rcode from
the return of the call to netxen_issue_cmd() that was dropped in
an earlier fix, so add it in.
Detected by CoverityScan, CID#401900 ("Logically dead code")
Fixes: 2dcd5d95ad ("netxen_nic: fix cdrp race condition")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The qca_spi driver causes alignment issues on ARM devices.
So fix this by using netdev_alloc_skb_ip_align().
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: 291ab06ecf ("net: qualcomm: new Ethernet over SPI driver for QCA7000")
Signed-off-by: David S. Miller <davem@davemloft.net>
The current codes only deal with the case that the skb is dropped, it
may meet one use-after-free issue when NF_HOOK returns 0 that means
the skb is stolen by one netfilter rule or hook.
When one netfilter rule or hook stoles the skb and return NF_STOLEN,
it means the skb is taken by the rule, and other modules should not
touch this skb ever. Maybe the skb is queued or freed directly by the
rule.
Now uses the nf_hook instead of NF_HOOK to get the result of netfilter,
and check the return value of nf_hook. Only when its value equals 1, it
means the skb could go ahead. Or reset the skb as NULL.
BTW, because vrf_rcv_finish is empty function, so needn't invoke it
even though nf_hook returns 1. But we need to modify vrf_rcv_finish
to deal with the NF_STOLEN case.
There are two cases when skb is stolen.
1. The skb is stolen and freed directly.
There is nothing we need to do, and vrf_rcv_finish isn't invoked.
2. The skb is queued and reinjected again.
The vrf_rcv_finish would be invoked as okfn, so need to free the
skb in it.
Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When killing kref_sub(), the unconditional additional kref_get()
was not properly paired with the necessary kref_put(), causing
a leak of struct drbd_requests (~ 224 Bytes) per submitted bio,
and breaking DRBD in general, as the destructor of those "drbd_requests"
does more than just the mempoll_free().
Fixes: bdfafc4ffd ("locking/atomic, kref: Kill kref_sub()")
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Cc: stable@vger.kernel.org # v4.11
Signed-off-by: Jens Axboe <axboe@fb.com>
A change to function pointers that was meant to address a sparse warning
turned out to cause hundreds of new gcc-7 warnings:
include/linux/of_irq.h:11:13: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
drivers/of/of_reserved_mem.c: In function '__reserved_mem_init_node':
drivers/of/of_reserved_mem.c:200:7: error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
int const (*initfn)(struct reserved_mem *rmem) = i->data;
Turns out the sparse warnings were spurious and have been fixed in
upstream sparse since 0.5.0 in commit "sparse: treat function pointers
as pointers to const data".
This partially reverts commit 17a70355ea.
Fixes: 17a70355ea ("of: fix sparse warnings in fdt, irq, reserved mem, and resolver code")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <robh@kernel.org>
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
SCSI devices can return short writes on Write Same just like for normal
writes, so we need to handle this case for our special payload requests
as well.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
When booted as pv-guest the p2m list presented by the Xen is already
mapped to virtual addresses. In dom0 case the hypervisor might make use
of 2M- or 1G-pages for this mapping. Unfortunately while being properly
aligned in virtual and machine address space, those pages might not be
aligned properly in guest physical address space.
So when trying to obtain the guest physical address of such a page
pud_pfn() and pmd_pfn() must be avoided as those will mask away guest
physical address bits not being zero in this special case.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
When running as Xen pv guest X86_BUG_SYSRET_SS_ATTRS must not be set
on AMD cpus.
This bug/feature bit is kind of special as it will be used very early
when switching threads. Setting the bit and clearing it a little bit
later leaves a critical window where things can go wrong. This time
window has enlarged a little bit by using setup_clear_cpu_cap() instead
of the hypervisor's set_cpu_features callback. It seems this larger
window now makes it rather easy to hit the problem.
The proper solution is to never set the bit in case of Xen.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Juergen Gross <jgross@suse.com>
When CONFIG_ARM64_MODULE_PLTS is enabled, the first allocation using the
module space fails, because the module is too big, and then the module
allocation is attempted from vmalloc space. Silence the first allocation
failure in that case by setting __GFP_NOWARN.
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
When CONFIG_ARM_MODULE_PLTS is enabled, the first allocation using the
module space fails, because the module is too big, and then the module
allocation is attempted from vmalloc space. Silence the first allocation
failure in that case by setting __GFP_NOWARN.
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
If the caller has set __GFP_NOWARN don't print the following message:
vmap allocation for size 15736832 failed: use vmalloc=<size> to increase
size.
This can happen with the ARM/Linux or ARM64/Linux module loader built
with CONFIG_ARM{,64}_MODULE_PLTS=y which does a first attempt at loading
a large module from module space, then falls back to vmalloc space.
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Due to the complex dependencies between workqueues and RCU, which
are not easily detected by lockdep, do not synchronize RCU during
shrinking.
On low-on-memory systems (mem=1G for example), the RCU sync leads
to all system workqueus freezing and unrelated lockdep splats are
displayed according to reports. GIT bisecting done by J. R.
Okajima points to the commit where RCU syncing was extended.
RCU sync gains us very little benefit in real life scenarios
where the amount of memory used by object backing storage is
dominant over the metadata under RCU, so drop it altogether.
" Yeeeaah, if core could just, go ahead and reclaim RCU
queues, that'd be great. "
- Chris Wilson, 2016 (0eafec6d32)
v2: More information to commit message.
v3: Remove "grep _rcu_" escapee from i915_gem_shrink_all (Andrea)
Fixes: c053b5a506 ("drm/i915: Don't call synchronize_rcu_expedited under struct_mutex")
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: J. R. Okajima <hooanon05g@gmail.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Hugh Dickins <hughd@google.com>
Tested-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: J. R. Okajima <hooanon05g@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: <stable@vger.kernel.org> # v4.11+
Link: http://patchwork.freedesktop.org/patch/msgid/1494414040-11160-1-git-send-email-joonas.lahtinen@linux.intel.com
We are using some scratch registers in MMIO based send function.
Make their base and count flexible in preparation of upcoming
GuC firmware/hardware changes. While around, change cmd len
parameter verification from WARN_ON to GEM_BUG_ON as we don't
need this all the time.
v2: call out WARN/GEM_BUG change in the commit msg (Daniele)
v3: don't overqualify the ints (Chris)
v4: rebase and use proper enum
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
As of commits d8f347ba35cf ("nios2: enable earlycon support"),
0dcc0542a0 ("serial: altera_jtaguart: add earlycon support") and
4d9d7d896d ("serial: altera_uart: add earlycon support"), the nios2
architecture and the altera_uart/altera_jtaguart drivers support
earlycon. Thus, the custom early console implementation for nios2 is no
longer necessary to get early boot messages. Remove it and rely fully on
earlycon support.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
commit a667fb402c
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Thu Dec 15 15:29:44 2016 +0100
drm/i915: Disable all crtcs during driver unload, v2.
made sure that all crtc's are disabled on driver unload, but only the
following commit made sure all fb's are cleaned up correctly:
commit 9b2104f423
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Tue Feb 21 14:51:40 2017 +0100
drm/atomic: Make disable_all helper fully disable the crtc.
Finally remove this and add a WARN_ON when vma is set. It should
have been removed by intel_cleanup_plane_fb().
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511082844.13965-2-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We shouldn't inspect crtc->state, instead grab the crtc state.
At this point the hw state verifier should be able to run even if
crtc->state has been updated (which cannot currently happen).
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170511082844.13965-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We are missing pieces of information that could be useful for GuC
debugging.
v2: Reuse some code (Joonas)
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
[Joonas: Removed extra newline and s/uint32_t/u32/ for checkpatch.pl]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1494428691-20672-1-git-send-email-oscar.mateo@intel.com
The ELECOM DEFT trackballs report only five buttons, when the device
actually has 8. Change the descriptor so that the HID driver can see all of
them.
For completeness and future reference, I included a side-by-side diff of
the part of the descriptor that is being edited.
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Yuxuan Shui <yshuiv7@gmail.com>
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The ITE8595 keyboard uses the HID_GD_RFKILL_BTN usage code
from the Wireless Radio Controls Application Collection Microsoft
has defined for Windows 8 and later.
However it has a quirk, when the rfkill hotkey is pressed it does
generate a report for the collection, but the reported value is
always 0. Luckily it is the only button in this collection / report,
and it sends a report on release only, so receiving a report means the
button was pressed.
This commit adds a hid-ite driver which watches for the Wireless Radio
Controls Application Collection report and then reports a KEY_RFKILL event,
ignoring the value, making the rfkill on this keyboard work.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Microsoft has defined some extra HUT codes for the Generic Desktop Page
for Wireless Radio controls, see:
https://docs.microsoft.com/en-us/windows-hardware/drivers/hid/airplane-mode-radio-managementhttps://web.archive.org/web/20170509144631/https://docs.microsoft.com/en-us/windows-hardware/drivers/hid/airplane-mode-radio-management
I've 3 2-in-1 keyboard docks: Dell Venue Pro 11 keyboard dock,
HP pavilion x2 keyboard dock and a PEAQ C1010 keyboard dock which have
a wireless radio toggle hotkey, which uses the 0x000100c6 HUT code
defined in these extensions.
This commit adds a mapping for this key, this makes the rfkill toggle
hotkey work on the Dell Venue Pro 11 and HP Pavilion X2 keyboards,
the PEAQ C1010 keyboard does generate events for the 0x000100c6 HUT
code when pressed, but the reported value is always 0.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This reverts commit 0e2eb7d12e
Author: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Thu Mar 30 10:12:39 2017 -0700
target: Fix VERIFY and WRITE VERIFY command parsing
This patch broke existing behaviour for WRITE_VERIFY because
it dropped the original SCF_SCSI_DATA_CDB assignment for
bytchk = 0 so target_cmd_size_check() no longer rejected
this case, allowing an overflow case to trigger an OOPs
in iscsi-target.
Since the short term and long term fixes are still being
discussed, revert it for now since it's late in the merge
window and try again in v4.13-rc1.
Conflicts:
drivers/target/target_core_sbc.c
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
The conversion of __dax_zero_page_range() to 'struct dax_operations'
caused it to frequently fail. The mistake was treating the @size
parameter as a dax mapping length rather than just a length of the
clear_pmem() operation. The dax mapping length is assumed to be hard
coded as PAGE_SIZE.
Without this fix any page unaligned zeroing request will trigger a
-EINVAL return from bdev_dax_pgoff().
Cc: Jan Kara <jack@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Reported-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Fixes: cccbce6715 ("filesystem-dax: convert to dax_direct_access()")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
If we had badblocks/poison in the metadata area of a BTT, recreating the
BTT would not clear the poison in all cases, notably the flog area. This
is because rw_bytes will only clear errors if the request being sent
down is 512B aligned and sized.
Make sure that when writing the map and info blocks, the rw_bytes being
sent are of the correct size/alignment. For the flog, instead of doing
the smaller log_entry writes only, first do a 'wipe' of the entire area
by writing zeroes in large enough chunks so that errors get cleared.
Cc: Andy Rudoff <andy.rudoff@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
nsio_rw_bytes can clear media errors, but this cannot be done while we
are in an atomic context due to locking within ACPI. From the BTT,
->rw_bytes may be called either from atomic or process context depending
on whether the calls happen during initialization or during IO.
During init, we want to ensure error clearing happens, and the flag
marking process context allows nsio_rw_bytes to do that. When called
during IO, we're in atomic context, and error clearing can be skipped.
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Improvement of headers_install by Nicolas Dichtel.
It has been long since the introduction of uapi directories,
but the de-coupling of exported headers has not been completed.
Headers listed in header-y are exported whether they exist in
uapi directories or not. His work fixes this inconsistency.
All (and only) headers under uapi directories are now exported.
The asm-generic wrappers are still exceptions, but this is a big
step forward.
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Merge tag 'kbuild-uapi-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild UAPI updates from Masahiro Yamada:
"Improvement of headers_install by Nicolas Dichtel.
It has been long since the introduction of uapi directories, but the
de-coupling of exported headers has not been completed. Headers listed
in header-y are exported whether they exist in uapi directories or
not. His work fixes this inconsistency.
All (and only) headers under uapi directories are now exported. The
asm-generic wrappers are still exceptions, but this is a big step
forward"
* tag 'kbuild-uapi-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
arch/include: remove empty Kbuild files
uapi: export all arch specifics directories
uapi: export all headers under uapi directories
smc_diag.h: fix include from userland
btrfs_tree.h: fix include from userland
uapi: includes linux/types.h before exporting files
Makefile.headersinst: remove destination-y option
Makefile.headersinst: cleanup input files
x86: stop exporting msr-index.h to userland
nios2: put setup.h in uapi
h8300: put bitsperlong.h in uapi
- Clean up builddeb script
- Use full path for KBUILD_IMAGE to fix rpm-pkg build
- Fix objdiff tool to ignore debug info
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Merge tag 'kbuild-misc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull misc Kbuild updates from Masahiro Yamada:
- clean up builddeb script
- use full path for KBUILD_IMAGE to fix rpm-pkg build
- fix objdiff tool to ignore debug info
* tag 'kbuild-misc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
builddeb: fix typo
builddeb: Update a few outdated and hardcoded strings
deb-pkg: Remove the KBUILD_IMAGE workaround
unicore32: Use full path in KBUILD_IMAGE definition
sh: Use full path in KBUILD_IMAGE definition
arc: Use full path in KBUILD_IMAGE definition
arm: Use full path in KBUILD_IMAGE definition
arm64: Use full path in KBUILD_IMAGE definition
scripts: objdiff: Ignore debug info when comparing
- Improve Clang support
- Clean up various Makefiles
- Improve build log visibility (objtool, alpha, ia64)
- Improve compiler flag evaluation for better build performance
- Fix GCC version-dependent warning
- Fix genksyms
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Merge tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- improve Clang support
- clean up various Makefiles
- improve build log visibility (objtool, alpha, ia64)
- improve compiler flag evaluation for better build performance
- fix GCC version-dependent warning
- fix genksyms
* tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (23 commits)
kbuild: dtbinst: remove unnecessary __dtbs_install_prep target
ia64: beatify build log for gate.so and gate-syms.o
alpha: make short build log available for division routines
alpha: merge build rules of division routines
alpha: add $(src)/ rather than $(obj)/ to make source file path
Makefile: evaluate LDFLAGS_BUILD_ID only once
objtool: make it visible in make V=1 output
kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
kbuild: Add support to generate LLVM assembly files
kbuild: Add better clang cross build support
kbuild: drop -Wno-unknown-warning-option from clang options
kbuild: fix asm-offset generation to work with clang
kbuild: consolidate redundant sed script ASM offset generation
frv: Use OFFSET macro in DEF_*REG()
kbuild: avoid conflict between -ffunction-sections and -pg on gcc-4.7
kbuild: Consolidate header generation from ASM offset information
kbuild: use -Oz instead of -Os when using clang
kbuild, LLVMLinux: Add -Werror to cc-option to support clang
Kbuild: make designated_init attribute fatal
kbuild: drop unneeded patterns '.*.orig' and '.*.rej' from distclean
...
Subsystem:
- Add OF device ID table for i2c drivers
New driver:
- Motorola CPCAP PMIC RTC
Drivers:
- cmos: fix IRQ selection
- ds1307: Add ST m41t0 support
- ds1374: fix watchdog configuration
- sh: Add rza series support
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Merge tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"RTC subsystem update:
- Add OF device ID table for i2c drivers
New RTC driver:
- Motorola CPCAP PMIC RTC
RTC driver updates:
- cmos: fix IRQ selection
- ds1307: Add ST m41t0 support
- ds1374: fix watchdog configuration
- sh: Add rza series support"
* tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits)
rtc: gemini: add return value validation
rtc: snvs: fix an incorrect check of return value
rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks
rtc: sh: mark PM functions as unused
rtc: hid-sensor-time: remove some dead code
rtc: m41t80: Add proper compatible for rv4162
rtc: ds1307: Add m41t0 to OF device ID table
rtc: ds1307: support m41t0 variant
rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irq
rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs
x86: i8259: export legacy_pic symbol
dt-bindings: rtc: document the rtc-sh bindings
rtc: sh: add support for rza series
rtc: cpcap: kfreeing devm allocated memory
rtc: wm8350: Remove unused to_wm8350_from_rtc_dev
rtc: cpcap: new rtc driver
dt-bindings: Add vendor prefix for Motorola
rtc: omap: mark PM methods as __maybe_unused
rtc: omap: remove incorrect __exit markups
...
