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Quectel BG96 is an Qualcomm MDM9206 based IoT modem, supporting both
CAT-M and NB-IoT. Tested hardware is BG96 mounted on Quectel development
board (EVB). The USB id is added to qmi_wwan.c to allow QMI
communication with the BG96.
Signed-off-by: Sebastian Sjoholm <ssjoholm@mac.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some systems, when we unsplit a port we need to re-create two ports
instead. On other systems, only one needs to be re-created.
Do not try to create a port if during driver initialization it was
assigned a negative module number, which is invalid.
This avoids the following error during unsplit:
[ 941.012478] mlxsw_spectrum 0000:01:00.0: Port 43: Failed to map module
The error is harmless and caused by the fact that a local port is
already mapped to module 0.
Fixes: be94535f9531 ("mlxsw: spectrum: Make split flow match firmware requirements")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some statements are not enough or too much indented.
Fix it to improve readalbility.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In rare cases, ena driver would reset and re-start the device,
for example, in case of misbehaving application that causes
transmit timeout
The first step in the reset procedure is to stop the Tx traffic by
calling ena_carrier_off().
After the driver have just started the device reset procedure, device
happens to send an asynchronous notification (via AENQ) to the driver
than there was a link change (to link-up state).
This link change is mapped to a call to netif_carrier_on() which
re-activates the Tx queues, violating the assumption of no tx traffic
until device reset is completed, as the reset task might still be in
the process of queues initialization, leading to an access to
uninitialized memory.
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Adjust the code to use the same green settings as in the latest
vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Name of functions rtl_w0w1_eri and rtl_w0w1_phy is somewhat misleading
regarding order of arguments. One could assume that w0w1 means
argument with bits to be reset comes before argument with bits to set.
However this is not the case.
So fix the order of arguments in several statements.
In addition fix EEE advertisement. The current code resets the bits
for 100BaseT and 1000BaseT EEE advertisement what is not what we want.
I have a little of a hard time to find a proper "Fixes" line as the
issue seems to have been there forever (at least it existed already
when the driver was moved to the current place in 2011).
The patch was tested on a Zotac Mini-PC with a RTL8111E-VL chip.
Before the patch EEE was disabled, now it's properly advertised and
works fine.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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rcu_read_lock in tun_build_skb is used to rcu_dereference tun->xdp_prog
safely, rcu_read_unlock should be done in every return path.
Now I could see one place missing it, where it returns NULL in switch-case
XDP_REDIRECT, another palce using rcu_read_lock wrongly, where it returns
NULL in if (xdp_xmit) chunk.
So fix both in this patch.
Fixes: 761876c857cb ("tap: XDP support")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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_dev_ is being dereferenced before it is null checked, hence there
is a potential null pointer dereference.
Fix this by moving the pointer dereference after _dev_ has been null
checked.
Addresses-Coverity-ID: 1462020
Fixes: bb1b40c7cb86 ("usbnet: ipheth: prevent TX queue timeouts when device not ready")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull sparc updates from David Miller:
1) Add missing cmpxchg64() for 32-bit sparc.
2) Timer conversions from Allen Pais and Kees Cook.
3) vDSO support, from Nagarathnam Muthusamy.
4) Fix sparc64 huge page table walks based upon bug report by Al Viro,
from Nitin Gupta.
5) Optimized fls() for T4 and above, from Vijay Kumar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix page table walk for PUD hugepages
sparc64: Convert timers to user timer_setup()
sparc64: convert mdesc_handle.refcnt from atomic_t to refcount_t
sparc/led: Convert timers to use timer_setup()
sparc64: Use sparc optimized fls and __fls for T4 and above
sparc64: SPARC optimized __fls function
sparc64: SPARC optimized fls function
sparc64: Define SPARC default __fls function
sparc64: Define SPARC default fls function
vDSO for sparc
sparc32: Add cmpxchg64().
sbus: char: Move D7S_MINOR to include/linux/miscdevice.h
sparc: time: Remove unneeded linux/miscdevice.h include
sparc64: mmu_context: Add missing include files
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Pull networking fixes from David Miller:
1) Revert regression inducing change to the IPSEC template resolver,
from Steffen Klassert.
2) Peeloffs can cause the wrong sk to be waken up in SCTP, fix from Xin
Long.
3) Min packet MTU size is wrong in cpsw driver, from Grygorii Strashko.
4) Fix build failure in netfilter ctnetlink, from Arnd Bergmann.
5) ISDN hisax driver checks pnp_irq() for errors incorrectly, from
Arvind Yadav.
6) Fix fealnx driver build failure on MIPS, from Huacai Chen.
7) Fix into leak in SCTP, the scope_id of socket addresses is not
always filled in. From Eric W. Biederman.
8) MTU inheritance between physical function and representor fix in nfp
driver, from Dirk van der Merwe.
9) Fix memory leak in rsi driver, from Colin Ian King.
10) Fix expiration and generation ID handling of cached ipv4 redirect
routes, from Xin Long.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
net: usb: hso.c: remove unneeded DRIVER_LICENSE #define
ibmvnic: fix dma_mapping_error call
ipvlan: NULL pointer dereference panic in ipvlan_port_destroy
route: also update fnhe_genid when updating a route cache
route: update fnhe_expires for redirect when the fnhe exists
sctp: set frag_point in sctp_setsockopt_maxseg correctly
rsi: fix memory leak on buf and usb_reg_buf
net/netlabel: Add list_next_rcu() in rcu_dereference().
nfp: remove false positive offloads in flower vxlan
nfp: register flower reprs for egress dev offload
nfp: inherit the max_mtu from the PF netdev
nfp: fix vlan receive MAC statistics typo
nfp: fix flower offload metadata flag usage
virto_net: remove empty file 'virtio_net.'
net/sctp: Always set scope_id in sctp_inet6_skb_msgname
fealnx: Fix building error on MIPS
isdn: hisax: Fix pnp_irq's error checking for setup_teles3
isdn: hisax: Fix pnp_irq's error checking for setup_sedlbauer_isapnp
isdn: hisax: Fix pnp_irq's error checking for setup_niccy
isdn: hisax: Fix pnp_irq's error checking for setup_ix1micro
...
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Pull hwspinlock update from Bjorn Andersson:
"This changes the HWSPINLOCK core Kconfig option to bool, to aid when
other core code depends on it"
* tag 'hwlock-v4.15' of git://github.com/andersson/remoteproc:
hwspinlock: Change hwspinlock to a bool
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Pull remoteproc updates from Bjorn Andersson:
"This adds an interface for configuring Qualcomm's "secure SMMU" and
adds support for booting the modem Hexagon on MSM8996.
Two new debugfs entries are added in the remoteproc core to introspect
the list of memory carveouts and the loaded resource table"
* tag 'rproc-v4.15' of git://github.com/andersson/remoteproc:
remoteproc: qcom: Fix error handling paths in order to avoid memory leaks
remoteproc: qcom: Drop pr_err in q6v5_xfer_mem_ownership()
remoteproc: debug: add carveouts list dump feature
remoteproc: debug: add resource table dump feature
remoteproc: qcom: Add support for mss remoteproc on msm8996
remoteproc: qcom: Make secure world call for mem ownership switch
remoteproc: qcom: refactor mss fw image loading sequence
firmware: scm: Add new SCM call API for switching memory ownership
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Pull rpmsg updates from Bjorn Andersson:
- turn RPMSG_VIRTIO into a user selectable config
- fix few bugs in GLINK
- provide the support for specifying initial buffer sizes for GLINK
channels.
* tag 'rpmsg-v4.15' of git://github.com/andersson/remoteproc:
rpmsg: glink: The mbox client knows_txdone
rpmsg: glink: Add missing MODULE_LICENSE
rpmsg: glink: Use best fit intent during tx
rpmsg: glink: Add support to preallocate intents
dt-bindings: soc: qcom: Support GLINK intents
rpmsg: glink: Initialize the "intent_req_comp" completion variable
rpmsg: Allow RPMSG_VIRTIO to be enabled via menuconfig or defconfig
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull more hwmon updates/fixes from Guenter Roeck:
- minor bug fix in k10temp driver
- take advantage of added NULL check in i2c_unregister_device()
* tag 'hwmon-for-linus-v4.15-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (w83793) Remove duplicate NULL check
hwmon: (w83792d) Remove duplicate NULL check
hwmon: (w83791d) Remove duplicate NULL check
hwmon: (w83781d) Remove duplicate NULL check
hwmon: (k10temp) Correct model name for Ryzen 1600X
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have two changes to the core framework this time around.
The first being a large change that introduces runtime PM support to
the clk framework. Now we properly call runtime PM operations on the
device providing a clk when the clk is in use. This helps on SoCs
where the clks provided by a device need something to be powered on
before using the clks, like power domains or regulators. It also helps
power those things down when clks aren't in use.
The other core change is a devm API addition for clk providers so we
can get rid of a bunch of clk driver remove functions that are just
doing of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and
smattering of non-critical fixes to existing drivers. The biggest diff
is support for Mediatek MT2712 and MT7622 SoCs, but those patches
really just add a bunch of data.
By the way, we're trying something new here where we build the tree up
with topic branches. We plan to work this into our workflow so that we
don't step on each other's toes, and so the fixes branch can be merged
on an as-needed basis.
Summary:
Core:
- runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- runtime PM support for Samsung exynos5433/exynos4412 providers
- removal of clkdev aliases on Samsung SoCs
- convert clk-gpio to use gpio descriptors
- various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- support for the second display unit clock on Renesas RZ/G1E
- suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- new clock ids for Rockchip rk3188 and rk3368 SoCs
- various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
clk: stm32h7: fix test of clock config
clk: pxa: fix building on older compilers
clk: sunxi-ng: a83t: Fix i2c buses bits
clk: ti: dra7-atl-clock: fix child-node lookups
clk: qcom: common: fix legacy board-clock registration
clk: uniphier: fix DAPLL2 clock rate of Pro5
clk: uniphier: fix parent of miodmac clock data
clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu'
clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep()
clk: hi3660: fix incorrect uart3 clock freqency
clk: kona-setup: Delete error messages for failed memory allocations
ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
clk: cdce925: remove redundant check for non-null parent_name
clk: versatile: Improve sizeof() usage
clk: versatile: Delete error messages for failed memory allocations
clk: ux500: Improve sizeof() usage
clk: ux500: Delete error messages for failed memory allocations
clk: spear: Delete error messages for failed memory allocations
clk: ti: Delete error messages for failed memory allocations
clk: mmp: Adjust checks for NULL pointers
...
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There is no need to #define the license of the driver, just put it in
the MODULE_LICENSE() line directly as a text string.
This allows tools that check that the module license matches the source
code license to work properly, as there is no need to unwind the
unneeded dereference.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andreas Kemnade <andreas@kemnade.info>
Cc: Johan Hovold <johan@kernel.org>
Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the dma_mapping_error call to use the correct dma_addr
which is inside the ibmvnic_vpd struct. Moreover, it fixes an uninitialized
warning regarding a local dma_addr variable which is not used anymore.
Fixes: 4e6759be28e4 ("ibmvnic: Feature implementation of VPD for the ibmvnic driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When call to register_netdevice() (called from ipvlan_link_new()) fails,
we call ipvlan_uninit() (through ndo_uninit()) to destroy the ipvlan
port. After returning unsuccessfully from register_netdevice() we go
ahead and call ipvlan_port_destroy() again which causes NULL pointer
dereference panic. Fix the issue by making ipvlan_init() and
ipvlan_uninit() call symmetric.
The ipvlan port will now be created inside ipvlan_init() and will be
destroyed in ipvlan_uninit().
Fixes: 2ad7bf363841 (ipvlan: Initial check-in of the IPVLAN driver)
Signed-off-by: Girish Moodalbail <girish.moodalbail@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the cases where len is too long, the error return path fails to
kfree allocated buffers buf and usb_reg_buf. The simplest fix is to
perform the sanity check on len before the allocations to avoid having
to do the kfree'ing in the first place.
Detected by CoverityScan, CID#1452258,1452259 ("Resource Leak")
Fixes: 59f73e2ae185 ("rsi: check length before USB read/write register")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge more updates from Andrew Morton:
- a bit more MM
- procfs updates
- dynamic-debug fixes
- lib/ updates
- checkpatch
- epoll
- nilfs2
- signals
- rapidio
- PID management cleanup and optimization
- kcov updates
- sysvipc updates
- quite a few misc things all over the place
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (94 commits)
EXPERT Kconfig menu: fix broken EXPERT menu
include/asm-generic/topology.h: remove unused parent_node() macro
arch/tile/include/asm/topology.h: remove unused parent_node() macro
arch/sparc/include/asm/topology_64.h: remove unused parent_node() macro
arch/sh/include/asm/topology.h: remove unused parent_node() macro
arch/ia64/include/asm/topology.h: remove unused parent_node() macro
drivers/pcmcia/sa1111_badge4.c: avoid unused function warning
mm: add infrastructure for get_user_pages_fast() benchmarking
sysvipc: make get_maxid O(1) again
sysvipc: properly name ipc_addid() limit parameter
sysvipc: duplicate lock comments wrt ipc_addid()
sysvipc: unteach ids->next_id for !CHECKPOINT_RESTORE
initramfs: use time64_t timestamps
drivers/watchdog: make use of devm_register_reboot_notifier()
kernel/reboot.c: add devm_register_reboot_notifier()
kcov: update documentation
Makefile: support flag -fsanitizer-coverage=trace-cmp
kcov: support comparison operands collection
kcov: remove pointless current != NULL check
kernel/panic.c: add TAINT_AUX
...
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pcmv_setup() is only used when the badge4 driver is built-in, but not
when it is a loadable module:
drivers/pcmcia/sa1111_badge4.c:153:122: error: 'pcmv_setup' defined but not used [-Werror=unused-function]
This adds an #ifdef to avoid the definition of the unused function in
the modular case.
Link: http://lkml.kernel.org/r/20170911201133.3421636-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Save a bit of cleanup code by leveraging newly added
devm_register_reboot_notifier().
[akpm@linux-foundation.org: small cleanup: avoid 80-col tricks]
Link: http://lkml.kernel.org/r/20170411160615.9784-1-andrew.smirnov@gmail.com
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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'rio_dma_transfer()'
In case of error, 'dma_map_sg()' returns 0, not a negative value. There
is BUG_ON() in 'dma_map_sg_attrs()' which makes sure of that.
Link: http://lkml.kernel.org/r/d4235bd2b9274e99f6c86ea71b1fa1c7bd8d0c08.1505687047.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Christian K_nig <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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handling path in 'rio_dma_transfer()'
If 'dma_map_sg()', we should branch to the existing error handling path
to free some resources before returning.
Link: http://lkml.kernel.org/r/61292a4f369229eee03394247385e955027283f8.1505687047.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Christian K_nig <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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rio_device_id are not supposed to change at runtime. rio driver is
working with const 'id_table'. So mark the non-const rio_device_id
structs as const.
Link: http://lkml.kernel.org/r/1503734627-6058-2-git-send-email-arvind.yadav.cs@gmail.com
Link: http://lkml.kernel.org/r/1503734627-6058-3-git-send-email-arvind.yadav.cs@gmail.com
Link: http://lkml.kernel.org/r/1503734627-6058-4-git-send-email-arvind.yadav.cs@gmail.com
Link: http://lkml.kernel.org/r/1503734627-6058-5-git-send-email-arvind.yadav.cs@gmail.com
Link: http://lkml.kernel.org/r/1503734627-6058-6-git-send-email-arvind.yadav.cs@gmail.com
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In order to test the ordering of WARN format strings, actually include
one in LKDTM.
Link: http://lkml.kernel.org/r/1510100869-73751-2-git-send-email-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from
- allow module init functions to be traced
- clean up some unused or not used by config events (saves space)
- clean up of trace histogram code
- add support for preempt and interrupt enabled/disable events
- other various clean ups
* tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (30 commits)
tracing, thermal: Hide cpu cooling trace events when not in use
tracing, thermal: Hide devfreq trace events when not in use
ftrace: Kill FTRACE_OPS_FL_PER_CPU
perf/ftrace: Small cleanup
perf/ftrace: Fix function trace events
perf/ftrace: Revert ("perf/ftrace: Fix double traces of perf on ftrace:function")
tracing, dma-buf: Remove unused trace event dma_fence_annotate_wait_on
tracing, memcg, vmscan: Hide trace events when not in use
tracing/xen: Hide events that are not used when X86_PAE is not defined
tracing: mark trace_test_buffer as __maybe_unused
printk: Remove superfluous memory barriers from printk_safe
ftrace: Clear hashes of stale ips of init memory
tracing: Add support for preempt and irq enable/disable events
tracing: Prepare to add preempt and irq trace events
ftrace/kallsyms: Have /proc/kallsyms show saved mod init functions
ftrace: Add freeing algorithm to free ftrace_mod_maps
ftrace: Save module init functions kallsyms symbols for tracing
ftrace: Allow module init functions to be traced
ftrace: Add a ftrace_free_mem() function for modules to use
tracing: Reimplement log2
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"This fixes a possible memory leak in an error code path in one of the
utility routines (Xiongfeng Wang)"
* tag 'acpi-fix-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / utils: Fix memory leak in acpi_evaluate_reference() error path
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull two power management fixes from Rafael Wysocki:
"This is the change making /proc/cpuinfo on x86 report current CPU
frequency in "cpu MHz" again in all cases and an additional one
dealing with an overzealous check in one of the helper routines in the
runtime PM framework"
* tag 'pm-fixes-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / runtime: Drop children check from __pm_runtime_set_status()
x86 / CPU: Always show current CPU frequency in /proc/cpuinfo
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Pull amdgpu DC display code for Vega from Dave Airlie:
"This is the pull request for the AMD DC (display code) layer which is
a requirement to program the display engines on the new Vega and Raven
based GPUs. It also contains support for all amdgpu supported GPUs
(CIK, VI, Polaris), which has to be enabled. It is also a kms atomic
modesetting compatible driver (unlike the current in-tree display
code).
I've kept it separate from drm-next because it may have some things
that cause you to reject it.
Background story:
AMD have an internal team creating a shared OS codebase for display at
hw bring up time using information from their hardware teams. This
process doesn't lead to the most Linux friendly/looking code but we
have worked together on cleaning a lot of it up and dealing with
sparse/smatch/checkpatch, and having their team internally adhere to
Linux coding standards.
This tree is a complete history rebased since they started opening it,
we decided not to squash it down as the history may have some value.
Some of the commits therefore might not reach kernel standards, and we
are steadily training people in AMD to better write commit msgs.
There is a major bunch of generated bandwidth calculation and
verification code that comes from their hardware team. On Vega and
before this is float calculations, on Raven (DCN10) this is double
based. They do the required things to do FP in the kernel, and I could
understand this might raise some issues. Rewriting the bandwidth would
be a major undertaken in reverification, it's non-trivial to work out
if a display can handle the complete set of mode information thrown at
it.
Future story:
There is a TODO list with this, and it address most of the remaining
things that would be nice to refine/remove. The DCN10 code is still
under development internally and they push out a lot of patches quite
regularly and are supporting this code base with their display team. I
think we've reached the point where keeping it out of tree is going to
motivate distributions to start carrying the code, so I'd prefer we
get it in tree. I think this code is slightly better than STAGING
quality but not massively so, I'd really like to see that float/double
magic gone and fixed point used, but AMD don't seem to think the
accuracy and revalidation of the code is worth the effort"
* tag 'drm-for-v4.15-amd-dc' of git://people.freedesktop.org/~airlied/linux: (1110 commits)
drm/amd/display: fix MST link training fail division by 0
drm/amd/display: Fix formatting for null pointer dereference fix
drm/amd/display: Remove dangling planes on dc commit state
drm/amd/display: add flip_immediate to commit update for stream
drm/amd/display: Miss register MST encoder cbs
drm/amd/display: Fix warnings on S3 resume
drm/amd/display: use num_timing_generator instead of pipe_count
drm/amd/display: use configurable FBC option in dm
drm/amd/display: fix AZ clock not enabled before program AZ endpoint
amdgpu/dm: Don't use DRM_ERROR in amdgpu_dm_atomic_check
amd/display: Fix potential null dereference in dce_calcs.c
amdgpu/dm: Remove unused forward declaration
drm/amdgpu: Remove unused dc_stream from amdgpu_crtc
amdgpu/dc: Fix double unlock in amdgpu_dm_commit_planes
amdgpu/dc: Fix missing null checks in amdgpu_dm.c
amdgpu/dc: Fix potential null dereferences in amdgpu_dm.c
amdgpu/dc: fix more indentation warnings
amdgpu/dc: handle allocation failures in dc_commit_planes_to_stream.
amdgpu/dc: fix indentation warning from smatch.
amdgpu/dc: fix non-ansi function decls.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
- introduce brcmstb AVS TMON thermal driver (Brian Norris)
- add Rockchip RV1108 support in rockchip thermal driver (Rocky Hao)
- major rework on HISI driver plus additional support of hisi3660
(Daniel Lezcano)
- add nvmem-cells binding on imx6sx (Leonard Crestez)
- fix a NULL pointer dereference on ti thermal driver unloading (Tony
Lindgren)
- improve tmon tool to make it easier to cross-compile tmon (Markus
Mayer)
- add Coffee Lake and Cannon Lake support for intel processor and pch
thermal drivers (Srinivas Pandruvada)
- other small fixes and cleanups (Arvind Yadav, Colin Ian King, Allen
Wild, Nicolin Chen, Baruch SiachNiklas Söderlund, Arnd Bergmann)
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (44 commits)
thermal: pch: Add Cannon Lake support
thermal: int340x: processor_thermal: Add Coffee Lake support
thermal: int340x: processor_thermal: Add Cannon Lake support
thermal: bxt: remove redundant variable trip
thermal: cpu_cooling: pr_err() strings should end with newlines
thermal: add brcmstb AVS TMON driver
Documentation: devicetree: add binding for Broadcom STB AVS TMON
thermal/drivers/hisi: Add support for hi3660 SoC
thermal/drivers/hisi: Prepare to add support for other hisi platforms
thermal/drivers/hisi: Add platform prefix to function name
thermal/drivers/hisi: Put platform code together
thermal/drivers/qcom-spmi: Use devm_iio_channel_get
thermal/drivers/generic-iio-adc: Switch tz request to devm version
thermal/drivers/step_wise: Fix temperature regulation misbehavior
thermal/drivers/hisi: Use round up step value
thermal/drivers/hisi: Move the clk setup in the corresponding functions
thermal/drivers/hisi: Remove mutex_lock in the code
thermal/drivers/hisi: Remove thermal data back pointer
thermal/drivers/hisi: Convert long to int
thermal/drivers/hisi: Rename and remove unused field
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull second round of s390 updates from Martin Schwidefsky:
- rework of the vdso code to avoid the use of the access register mode
- use perf AUX buffers for the transport of diagnostic sample data
- add perf_regs and user stack dump support
- enable perf call graphs for user space programs
- add perf register support for floating-point registers
- all remaining s390 related timer_setup conversions
- bug fixes and cleanups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (30 commits)
s390: remove unused parameter from Makefile
zfcp: purely mechanical update using timer API, plus blank lines
s390/scsi: Convert timers to use timer_setup()
s390/cpum_sf: correctly set the PID and TID in perf samples
s390/cpum_sf: load program parameter at sampler enablement
s390/perf: add perf register support for floating-point registers
s390/perf: extend perf_regs support to include floating-point registers
s390/perf: define common DWARF register string table
s390/perf: add support for perf_regs and libdw
s390/perf: add perf_regs support and user stack dump
s390/cpum_sf: do not register PMU if no sampling mode is authorized
s390/cpumf: remove raw event support in basic-only sampling mode
s390/perf: add callback to perf to enable using AUX buffer
s390/cpumf: enable using AUX buffer
s390/cpumf: introduce AUX buffer for dump diagnostic sample data
s390/disassembler: increase show_code buffer size
s390: Remove CONFIG_HARDENED_USERCOPY
s390: enable CPU alternatives unconditionally
s390/nmi: remove unused code
s390/mm: remove unused code
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull get_user_pages_fast() conversion from Al Viro:
"A bunch of places switched to get_user_pages_fast()"
* 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ceph: use get_user_pages_fast()
pvr2fs: use get_user_pages_fast()
atomisp: use get_user_pages_fast()
st: use get_user_pages_fast()
via_dmablit(): use get_user_pages_fast()
fsl_hypervisor: switch to get_user_pages_fast()
rapidio: switch to get_user_pages_fast()
vchiq_2835_arm: switch to get_user_pages_fast()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
- bio_{map,copy}_user_iov() series; those are cleanups - fixes from the
same pile went into mainline (and stable) in late September.
- fs/iomap.c iov_iter-related fixes
- new primitive - iov_iter_for_each_range(), which applies a function
to kernel-mapped segments of an iov_iter.
Usable for kvec and bvec ones, the latter does kmap()/kunmap() around
the callback. _Not_ usable for iovec- or pipe-backed iov_iter; the
latter is not hard to fix if the need ever appears, the former is by
design.
Another related primitive will have to wait for the next cycle - it
passes page + offset + size instead of pointer + size, and that one
will be usable for everything _except_ kvec. Unfortunately, that one
didn't get exposure in -next yet, so...
- a bit more lustre iov_iter work, including a use case for
iov_iter_for_each_range() (checksum calculation)
- vhost/scsi leak fix in failure exit
- misc cleanups and detritectomy...
* 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (21 commits)
iomap_dio_actor(): fix iov_iter bugs
switch ksocknal_lib_recv_...() to use of iov_iter_for_each_range()
lustre: switch struct ksock_conn to iov_iter
vhost/scsi: switch to iov_iter_get_pages()
fix a page leak in vhost_scsi_iov_to_sgl() error recovery
new primitive: iov_iter_for_each_range()
lnet_return_rx_credits_locked: don't abuse list_entry
xen: don't open-code iov_iter_kvec()
orangefs: remove detritus from struct orangefs_kiocb_s
kill iov_shorten()
bio_alloc_map_data(): do bmd->iter setup right there
bio_copy_user_iov(): saner bio size calculation
bio_map_user_iov(): get rid of copying iov_iter
bio_copy_from_iter(): get rid of copying iov_iter
move more stuff down into bio_copy_user_iov()
blk_rq_map_user_iov(): move iov_iter_advance() down
bio_map_user_iov(): get rid of the iov_for_each()
bio_map_user_iov(): move alignment check into the main loop
don't rely upon subsequent bio_add_pc_page() calls failing
... and with iov_iter_get_pages_alloc() it becomes even simpler
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull compat and uaccess updates from Al Viro:
- {get,put}_compat_sigset() series
- assorted compat ioctl stuff
- more set_fs() elimination
- a few more timespec64 conversions
- several removals of pointless access_ok() in places where it was
followed only by non-__ variants of primitives
* 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits)
coredump: call do_unlinkat directly instead of sys_unlink
fs: expose do_unlinkat for built-in callers
ext4: take handling of EXT4_IOC_GROUP_ADD into a helper, get rid of set_fs()
ipmi: get rid of pointless access_ok()
pi433: sanitize ioctl
cxlflash: get rid of pointless access_ok()
mtdchar: get rid of pointless access_ok()
r128: switch compat ioctls to drm_ioctl_kernel()
selection: get rid of field-by-field copyin
VT_RESIZEX: get rid of field-by-field copyin
i2c compat ioctls: move to ->compat_ioctl()
sched_rr_get_interval(): move compat to native, get rid of set_fs()
mips: switch to {get,put}_compat_sigset()
sparc: switch to {get,put}_compat_sigset()
s390: switch to {get,put}_compat_sigset()
ppc: switch to {get,put}_compat_sigset()
parisc: switch to {get,put}_compat_sigset()
get_compat_sigset()
get rid of {get,put}_compat_itimerspec()
io_getevents: Use timespec64 to represent timeouts
...
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Pull more block layer updates from Jens Axboe:
"A followup pull request, with some parts that either needed a bit more
testing before going in, merge sync, or just later arriving fixes.
This contains:
- Timer related updates from Kees. These were purposefully delayed
since I didn't want to pull in a later v4.14-rc tag to my block
tree.
- ide-cd prep sense buffer fix from Bart. Also delayed, as not to
clash with the late fix we put into 4.14-rc.
- Small BFQ updates series from Luca and Paolo.
- Single nvmet fix from James, fixing a non-functional case there.
- Bio fast clone fix from Michael, which made bcache return the wrong
data for some cases.
- Legacy IO path regression hang fix from Ming"
* 'for-linus' of git://git.kernel.dk/linux-block:
bio: ensure __bio_clone_fast copies bi_partno
nvmet_fc: fix better length checking
block: wake up all tasks blocked in get_request()
block, bfq: move debug blkio stats behind CONFIG_DEBUG_BLK_CGROUP
block, bfq: update blkio stats outside the scheduler lock
block, bfq: add missing invocations of bfqg_stats_update_io_add/remove
doc, block, bfq: update max IOPS sustainable with BFQ
ide: Make ide_cdrom_prep_fs() initialize the sense buffer pointer
md: Convert timers to use timer_setup()
block: swim3: Convert timers to use timer_setup()
block/aoe: Convert timers to use timer_setup()
amifloppy: Convert timers to use timer_setup()
block/floppy: Convert callback to pass timer_list
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm and dax updates from Dan Williams:
"Save for a few late fixes, all of these commits have shipped in -next
releases since before the merge window opened, and 0day has given a
build success notification.
The ext4 touches came from Jan, and the xfs touches have Darrick's
reviewed-by. An xfstest for the MAP_SYNC feature has been through
a few round of reviews and is on track to be merged.
- Introduce MAP_SYNC and MAP_SHARED_VALIDATE, a mechanism to enable
'userspace flush' of persistent memory updates via filesystem-dax
mappings. It arranges for any filesystem metadata updates that may
be required to satisfy a write fault to also be flushed ("on disk")
before the kernel returns to userspace from the fault handler.
Effectively every write-fault that dirties metadata completes an
fsync() before returning from the fault handler. The new
MAP_SHARED_VALIDATE mapping type guarantees that the MAP_SYNC flag
is validated as supported by the filesystem's ->mmap() file
operation.
- Add support for the standard ACPI 6.2 label access methods that
replace the NVDIMM_FAMILY_INTEL (vendor specific) label methods.
This enables interoperability with environments that only implement
the standardized methods.
- Add support for the ACPI 6.2 NVDIMM media error injection methods.
- Add support for the NVDIMM_FAMILY_INTEL v1.6 DIMM commands for
latch last shutdown status, firmware update, SMART error injection,
and SMART alarm threshold control.
- Cleanup physical address information disclosures to be root-only.
- Fix revalidation of the DIMM "locked label area" status to support
dynamic unlock of the label area.
- Expand unit test infrastructure to mock the ACPI 6.2 Translate SPA
(system-physical-address) command and error injection commands.
Acknowledgements that came after the commits were pushed to -next:
- 957ac8c421ad ("dax: fix PMD faults on zero-length files"):
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
- a39e596baa07 ("xfs: support for synchronous DAX faults") and
7b565c9f965b ("xfs: Implement xfs_filemap_pfn_mkwrite() using __xfs_filemap_fault()")
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>"
* tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (49 commits)
acpi, nfit: add 'Enable Latch System Shutdown Status' command support
dax: fix general protection fault in dax_alloc_inode
dax: fix PMD faults on zero-length files
dax: stop requiring a live device for dax_flush()
brd: remove dax support
dax: quiet bdev_dax_supported()
fs, dax: unify IOMAP_F_DIRTY read vs write handling policy in the dax core
tools/testing/nvdimm: unit test clear-error commands
acpi, nfit: validate commands against the device type
tools/testing/nvdimm: stricter bounds checking for error injection commands
xfs: support for synchronous DAX faults
xfs: Implement xfs_filemap_pfn_mkwrite() using __xfs_filemap_fault()
ext4: Support for synchronous DAX faults
ext4: Simplify error handling in ext4_dax_huge_fault()
dax: Implement dax_finish_sync_fault()
dax, iomap: Add support for synchronous faults
mm: Define MAP_SYNC and VM_SYNC flags
dax: Allow tuning whether dax_insert_mapping_entry() dirties entry
dax: Allow dax_iomap_fault() to return pfn
dax: Fix comment describing dax_iomap_fault()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull more device mapper updates from Mike Snitzer:
"Given your expected travel I figured I'd get these fixes to you sooner
rather than later.
- a DM multipath stable@ fix to silence an annoying error message
that isn't _really_ an error
- a DM core @stable fix for discard support that was enabled for an
entire DM device despite only having partial support for discards
due to a mix of discard capabilities across the underlying devices.
- a couple other DM core discard fixes.
- a DM bufio @stable fix that resolves a 32-bit overflow"
* tag 'for-4.15/dm-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm bufio: fix integer overflow when limiting maximum cache size
dm: clear all discard attributes in queue_limits when discards are disabled
dm: do not set 'discards_supported' in targets that do not need it
dm: discard support requires all targets in a table support discards
dm mpath: remove annoying message of 'blk_get_request() returned -11'
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Pass information to the match offload on whether or not the repr is the
ingress or egress dev. Only accept tunnel matches if repr is the egress
dev.
This means rules such as the following are successfully offloaded:
tc .. add dev vxlan0 .. enc_dst_port 4789 .. action redirect dev nfp_p0
While rules such as the following are rejected:
tc .. add dev nfp_p0 .. enc_dst_port 4789 .. action redirect dev vxlan0
Also reject non tunnel flows that are offloaded to an egress dev.
Non tunnel matches assume that the offload dev is the ingress port and
offload a match accordingly.
Fixes: 611aec101ab7 ("nfp: compile flower vxlan tunnel metadata match fields")
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Register a callback for offloading flows that have a repr as their egress
device. The new egdev_register function is added to net-next for the 4.15
release.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The PF netdev is used for data transfer for reprs, so reprs inherit the
maximum MTU settings of the PF netdev.
Fixes: 5de73ee46704 ("nfp: general representor implementation")
Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Correct typo in vlan receive MAC stats. Previously the MAC statistics
reported in ethtool for vlan receive contained a typo resulting in ethtool
reporting rx_vlan_reveive_ok instead of rx_vlan_received_ok.
Fixes: a5950182c00e ("nfp: map mac_stats and vf_cfg BARs")
Fixes: 098ce840c9ef ("nfp: report MAC statistics in ethtool")
Reported-by: Brendan Galloway <brendan.galloway@netronome.com>
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Hardware has no notion of new or last mask id, instead it makes use of the
message type (i.e. add flow or del flow) in combination with a single bit
in metadata flags to determine when to add or delete a mask id. Previously
we made use of the new or last flags to indicate that a new mask should be
allocated or deallocated, respectively. This incorrect behaviour is fixed
by making use single bit in metadata flags to indicate mask allocation or
deallocation.
Fixes: 43f84b72c50d ("nfp: add metadata to each flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Looks like this was mistakenly added to the tree as part of
commit 186b3c998c50 ("virtio-net: support XDP_REDIRECT").
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"This branch contains platform-related driver updates for ARM and
ARM64, these are the areas that bring the changes:
New drivers:
- driver support for Renesas R-Car V3M (R8A77970)
- power management support for Amlogic GX
- a new driver for the Tegra BPMP thermal sensor
- a new bus driver for Technologic Systems NBUS
Changes for subsystems that prefer to merge through arm-soc:
- the usual updates for reset controller drivers from Philipp Zabel,
with five added drivers for SoCs in the arc, meson, socfpa,
uniphier and mediatek families
- updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
Heiner Kallweit and Lorenzo Pieralisi
Changes specific to some ARM-based SoC
- the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on
ARM as well
- several changes for power management on Broadcom SoCs
- various improvements on Qualcomm, Broadcom, Amlogic, Atmel,
Mediatek
- minor Cleanups for Samsung, TI OMAP SoCs"
[ NOTE! This doesn't work without the previous ARM SoC device-tree pull,
because the R8A77970 driver is missing a header file that came from
that pull.
The fact that this got merged afterwards only fixes it at this point,
and bisection of that driver will fail if/when you walk into the
history of that driver. - Linus ]
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits)
soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader
bus: add driver for the Technologic Systems NBUS
memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
soc: qcom: remove unused label
soc: amlogic: gx pm domain: add PM and OF dependencies
drivers/firmware: psci_checker: Add missing destroy_timer_on_stack()
dt-bindings: power: add amlogic meson power domain bindings
soc: amlogic: add Meson GX VPU Domains driver
soc: qcom: Remote filesystem memory driver
dt-binding: soc: qcom: Add binding for rmtfs memory
of: reserved_mem: Accessor for acquiring reserved_mem
of/platform: Generalize /reserved-memory handling
soc: mediatek: pwrap: fix fatal compiler error
soc: mediatek: pwrap: fix compiler errors
arm64: mediatek: cleanup message for platform selection
soc: Allow test-building of MediaTek drivers
soc: mediatek: place Kconfig for all SoC drivers under menu
soc: mediatek: pwrap: add support for MT7622 SoC
soc: mediatek: pwrap: add common way for setup CS timing extenstion
soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap
..
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann:
"Most of the commits are for defconfig changes, to enable newly added
drivers or features that people have started using. For the changed
lines lines, we have mostly cleanups, the affected platforms are OMAP,
Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions.
The largest single change is the introduction of the TI "sysc" bus
driver, with the intention of cleaning up more legacy code.
Two new SoC platforms get added this time:
- Allwinner R40 is a modernized version of the A20 chip, now with a
Quad-Core ARM Cortex-A7. According to the manufacturer, it is
intended for "Smart Hardware"
- Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family of
chips meant for managed gigabit ethernet switches, based around a
Cortex-A9 CPU.
Finally, we gain SMP support for two platforms: Renesas R-Car E2 and
Amlogic Meson8/8b, which were previously added but only supported
uniprocessor operation"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
ARM: multi_v7_defconfig: Select RPMSG_VIRTIO as module
ARM: multi_v7_defconfig: enable CONFIG_GPIO_UNIPHIER
arm64: defconfig: enable CONFIG_GPIO_UNIPHIER
ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b
ARM: meson: Add SMP bringup code for Meson8 and Meson8b
ARM: smp_scu: allow the platform code to read the SCU CPU status
ARM: smp_scu: add a helper for powering on a specific CPU
dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation
ARM: OMAP3: Delete an unnecessary variable initialisation in omap3xxx_hwmod_init()
ARM: OMAP3: Use common error handling code in omap3xxx_hwmod_init()
ARM: defconfig: select the right SX150X driver
arm64: defconfig: Enable QCOM_IOMMU
arm64: Add ThunderX drivers to defconfig
arm64: defconfig: Enable Tegra PCI controller
cpufreq: imx6q: Move speed grading check to cpufreq driver
arm64: defconfig: re-enable Qualcomm DB410c USB
ARM: configs: stm32: Add MDMA support in STM32 defconfig
ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1
bus: ti-sysc: Fix unbalanced pm_runtime_enable by adding remove
bus: ti-sysc: mark PM functions as __maybe_unused
...
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The check for "active" children in __pm_runtime_set_status(), when
trying to set the parent device status to "suspended", doesn't
really make sense, because in fact it is not invalid to set the
status of a device with runtime PM disabled to "suspended" in any
case. It is invalid to enable runtime PM for a device with its
status set to "suspended" while its child_count reference counter
is nonzero, but the check in __pm_runtime_set_status() doesn't
really cover that situation.
For this reason, drop the children check from __pm_runtime_set_status()
and add a check against child_count reference counters of "suspended"
devices to pm_runtime_enable().
Fixes: a8636c89648a (PM / Runtime: Don't allow to suspend a device with an active child)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
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The default max_cache_size_bytes for dm-bufio is meant to be the lesser
of 25% of the size of the vmalloc area and 2% of the size of lowmem.
However, on 32-bit systems the intermediate result in the expression
(VMALLOC_END - VMALLOC_START) * DM_BUFIO_VMALLOC_PERCENT / 100
overflows, causing the wrong result to be computed. For example, on a
32-bit system where the vmalloc area is 520093696 bytes, the result is
1174405 rather than the expected 130023424, which makes the maximum
cache size much too small (far less than 2% of lowmem). This causes
severe performance problems for dm-verity users on affected systems.
Fix this by using mult_frac() to correctly multiply by a percentage. Do
this for all places in dm-bufio that multiply by a percentage. Also
replace (VMALLOC_END - VMALLOC_START) with VMALLOC_TOTAL, which contrary
to the comment is now defined in include/linux/vmalloc.h.
Depends-on: 9993bc635 ("sched/x86: Fix overflow in cyc2ns_offset")
Fixes: 95d402f057f2 ("dm: add bufio")
Cc: <stable@vger.kernel.org> # v3.2+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Otherwise, it can happen that the QUEUE_FLAG_DISCARD isn't set but the
various discard attributes (which get exposed via sysfs) may be set.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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The DM target's 'discards_supported' flag is intended to act as an
override. Meaning, even if the underlying storage doesn't support
discards the DM target will.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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