Remove "__of_" prefix from local function names. The pattern of
a leading "__" is used in drivers/of/ to signify a function that
must be called with a lock held. These functions do not fit
that pattern.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Some function names are misleading or do not provide a good
sense of what they do. Rename the functions to ne more
informative.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Convert comparisons to zero or NULL to logical expressions. A
small number of such comparisons remain where they provide more
clarity of the numeric nature of a variable.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Remove extra debug and error printks. A single pr_err() will
be added at the end of this series to replace many of these
error messages.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Remove comments that report what is obvious from the code.
Signed-off-by: Frank Rowand <frank.rowand@am.sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
On arm64 NUMA kernels we can pass "numa=off" on the command line to
disable NUMA. A side effect of this is that kmalloc_node() calls to
non-zero nodes will crash the system with an OOPS:
[ 0.000000] ITS@0x0000901000020000: allocated 2097152 Devices @10002000000 (flat, esz 8, psz 64K, shr 1)
[ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00001680
[ 0.000000] pgd = fffffc0009470000
[ 0.000000] [00001680] *pgd=0000010ffff90003, *pud=0000010ffff90003, *pmd=0000010ffff90003, *pte=0000000000000000
[ 0.000000] Internal error: Oops: 96000006 [#1] SMP
.
.
.
[ 0.000000] [<fffffc00081c8950>] __alloc_pages_nodemask+0xa4/0xe68
[ 0.000000] [<fffffc000821fa70>] new_slab+0xd0/0x564
[ 0.000000] [<fffffc0008221e24>] ___slab_alloc+0x2e4/0x514
[ 0.000000] [<fffffc0008239498>] __slab_alloc+0x48/0x58
[ 0.000000] [<fffffc0008222c20>] __kmalloc_node+0xd0/0x2dc
[ 0.000000] [<fffffc0008115374>] __irq_domain_add+0x7c/0x164
[ 0.000000] [<fffffc0008b461dc>] its_probe+0x784/0x81c
[ 0.000000] [<fffffc0008b462bc>] its_init+0x48/0x1b0
[ 0.000000] [<fffffc0008b4543c>] gic_init_bases+0x228/0x360
[ 0.000000] [<fffffc0008b456bc>] gic_of_init+0x148/0x1cc
[ 0.000000] [<fffffc0008b5aec8>] of_irq_init+0x184/0x298
[ 0.000000] [<fffffc0008b43f9c>] irqchip_init+0x14/0x38
[ 0.000000] [<fffffc0008b12d60>] init_IRQ+0xc/0x30
[ 0.000000] [<fffffc0008b10a3c>] start_kernel+0x240/0x3b8
[ 0.000000] [<fffffc0008b101c4>] __primary_switched+0x30/0x6c
[ 0.000000] Code: 912ec2a0 b9403809 0a0902fb 37b007db (f9400300)
.
.
.
This is caused by code like this in kernel/irq/irqdomain.c
domain = kzalloc_node(sizeof(*domain) + (sizeof(unsigned int) * size),
GFP_KERNEL, of_node_to_nid(of_node));
When NUMA is disabled, the concept of a node is really undefined, so
of_node_to_nid() should unconditionally return NUMA_NO_NODE.
Fix by returning NUMA_NO_NODE when the nid is not in the set of
possible nodes.
Reported-by: Gilbert Netzer <noname@pdc.kth.se>
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: stable@vger.kernel.org # 4.7+
Signed-off-by: Rob Herring <robh@kernel.org>
As of commit 9c0da3cc61 ("ARM: dts: explicitly mark skeleton.dtsi
as deprecated"), including skeleton.dtsi is deprecated.
Hence remove it from the example.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Pull i2c fix from Wolfram Sang:
"A bugfix for the I2C core fixing a (rare) race condition"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: fix NULL pointer dereference under race condition
Pull stack vmap fixups from Thomas Gleixner:
"Two small patches related to sched_show_task():
- make sure to hold a reference on the task stack while accessing it
- remove the thread_saved_pc printout
.. and add a sanity check into release_task_stack() to catch problems
with task stack references"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Remove pointless printout in sched_show_task()
sched/core: Fix oops in sched_show_task()
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
fork: Add task stack refcounting sanity check and prevent premature task stack freeing
Pull MD fixes from Shaohua Li:
"There are several bug fixes queued:
- fix raid5-cache recovery bugs
- fix discard IO error handling for raid1/10
- fix array sync writes bogus position to superblock
- fix IO error handling for raid array with external metadata"
* tag 'md/4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md: be careful not lot leak internal curr_resync value into metadata. -- (all)
raid1: handle read error also in readonly mode
raid5-cache: correct condition for empty metadata write
md: report 'write_pending' state when array in sync
md/raid5: write an empty meta-block when creating log super-block
md/raid5: initialize next_checkpoint field before use
RAID10: ignore discard error
RAID1: ignore discard error
Pull SCSI fixes from James Bottomley:
"Two more important data integrity fixes related to RAID device drivers
which wrongly throw away the SYNCHRONIZE CACHE command in the non-RAID
path and a memory leak in the scsi_debug driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: arcmsr: Send SYNCHRONIZE_CACHE command to firmware
scsi: scsi_debug: Fix memory leak if LBP enabled and module is unloaded
scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices
Pull FireWire (IEEE 1394) fixes from Stefan Richter:
- add missing input validation to the firewire-net driver. Invalid
IP-over-1394 encapsulation headers could trigger buffer overflows
(CVE 2016-8633).
- IP-over-1394 link fragmentation headers were read and written
incorrectly, breaking fragmented RX/TX with other OS's stacks.
* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: net: fix fragmented datagram_size off-by-one
firewire: net: guard against rx buffer overflows
Pull media fixes from Mauro Carvalho Chehab:
"A series of fixup patches meant to fix the usage of DMA on stack, plus
one warning fixup"
* tag 'media/v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (32 commits)
[media] radio-bcm2048: don't ignore errors
[media] pctv452e: fix semicolon.cocci warnings
[media] flexcop-usb: don't use stack for DMA
[media] stk-webcam: don't use stack for DMA
[media] s2255drv: don't use stack for DMA
[media] cpia2_usb: don't use stack for DMA
[media] digitv: handle error code on RC query
[media] dw2102: return error if su3000_power_ctrl() fails
[media] nova-t-usb2: handle error code on RC query
[media] technisat-usb2: use DMA buffers for I2C transfers
[media] pctv452e: don't call BUG_ON() on non-fatal error
[media] pctv452e: don't do DMA on stack
[media] nova-t-usb2: don't do DMA on stack
[media] gp8psk: don't go past the buffer size
[media] gp8psk: don't do DMA on stack
[media] dtv5100: don't do DMA on stack
[media] dtt200u: handle USB control message errors
[media] dtt200u: don't do DMA on stack
[media] dtt200u-fe: handle errors on USB control messages
[media] dtt200u-fe: don't do DMA on stack
...
Pull PCI fixes from Bjorn Helgaas:
- fix for a Qualcomm driver issue that causes a use-before-set crash
- fix for DesignWare iATU unroll support that causes external aborts
when enabling the host bridge
* tag 'pci-v4.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: designware: Check for iATU unroll support after initializing host
PCI: qcom: Fix pp->dev usage before assignment
Pull MTD fixes from Brian Norris:
- MAINTAINERS updates to reflect some new maintainers/submaintainers.
We have some great volunteers who've been developing and reviewing
already. We're going to try a group maintainership model, so
eventually you'll probably see pull requests from people besides me.
- NAND fixes from Boris:
"Three simple fixes:
- fix a non-critical bug in the gpmi driver
- fix a bug in the 'automatic NAND timings selection' feature
introduced in 4.9-rc1
- fix a false positive uninitialized-var warning"
* tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd:
mtd: mtk: avoid warning in mtk_ecc_encode
mtd: nand: Fix data interface configuration logic
mtd: nand: gpmi: disable the clocks on errors
MAINTAINERS: add more people to the MTD maintainer team
MAINTAINERS: add a maintainer for the SPI NOR subsystem
Pull GPIO fixes from Linus Walleij:
"Some GPIO fixes for the v4.9 series:
- Fix a nasty file descriptor leak when getting line handles.
- A fix for a cleanup that seemed innocent but created a problem for
drivers instantiating several gpiochips for one single OF node.
- Fix a unpredictable problem using irq_domain_simple() in the mvebu
driver by converting it to a lineas irqdomain"
* tag 'gpio-v4.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio/mvebu: Use irq_domain_add_linear
gpio: of: fix GPIO drivers with multiple gpio_chip for a single node
gpio: GPIO_GET_LINE{HANDLE,EVENT}_IOCTL: Fix file descriptor leak
Pull nfsd bugfixes from Bruce Fields:
"Fixes for some recent regressions including fallout from the vmalloc'd
stack change (after which we can no longer encrypt stuff on the
stack)"
* tag 'nfsd-4.9-1' of git://linux-nfs.org/~bfields/linux:
nfsd: Fix general protection fault in release_lock_stateid()
svcrdma: backchannel cannot share a page for send and rcv buffers
sunrpc: fix some missing rq_rbuffer assignments
sunrpc: don't pass on-stack memory to sg_set_buf
nfsd: move blocked lock handling under a dedicated spinlock
Frank Rowand
David Daney
Fabio Estevam
Dinh Nguyen
Marek Vasut
Geert Uytterhoeven
Linus Torvalds