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The NSP default buffer is a piece of NFP memory where additional
command data can be placed. Its format has been copied from
host buffer, but the PCIe selection bits do not make sense in
this case. If those get masked out from a NFP address - writes
to random place in the chip memory may be issued and crash the
device.
Even in the general NSP buffer case, it doesn't make sense to have the
PCIe selection bits there anymore. These are unused at the moment, and
when it becomes necessary, the PCIe selection bits should rather be
moved to another register to utilise more bits for the buffer address.
This has never been an issue because the buffer used to be
allocated in memory with less-than-38-bit-long address but that
is about to change.
Fixes: 1a64821c6af7 ("nfp: add support for service processor access")
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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When using wicked with a lan78xx device attached to the system, we
end up with ethtool commands issued on the device before an ifup
got issued. That lead to the following crash:
Unable to handle kernel NULL pointer dereference at virtual address 0000039c
pgd = ffff800035b30000
[0000039c] *pgd=0000000000000000
Internal error: Oops: 96000004 [#1] SMP
Modules linked in: [...]
Supported: Yes
CPU: 3 PID: 638 Comm: wickedd Tainted: G E 4.12.14-0-default #1
Hardware name: raspberrypi rpi/rpi, BIOS 2018.03-rc2 02/21/2018
task: ffff800035e74180 task.stack: ffff800036718000
PC is at phy_ethtool_ksettings_get+0x20/0x98
LR is at lan78xx_get_link_ksettings+0x44/0x60 [lan78xx]
pc : [<ffff0000086f7f30>] lr : [<ffff000000dcca84>] pstate: 20000005
sp : ffff80003671bb20
x29: ffff80003671bb20 x28: ffff800035e74180
x27: ffff000008912000 x26: 000000000000001d
x25: 0000000000000124 x24: ffff000008f74d00
x23: 0000004000114809 x22: 0000000000000000
x21: ffff80003671bbd0 x20: 0000000000000000
x19: ffff80003671bbd0 x18: 000000000000040d
x17: 0000000000000001 x16: 0000000000000000
x15: 0000000000000000 x14: ffffffffffffffff
x13: 0000000000000000 x12: 0000000000000020
x11: 0101010101010101 x10: fefefefefefefeff
x9 : 7f7f7f7f7f7f7f7f x8 : fefefeff31677364
x7 : 0000000080808080 x6 : ffff80003671bc9c
x5 : ffff80003671b9f8 x4 : ffff80002c296190
x3 : 0000000000000000 x2 : 0000000000000000
x1 : ffff80003671bbd0 x0 : ffff80003671bc00
Process wickedd (pid: 638, stack limit = 0xffff800036718000)
Call trace:
Exception stack(0xffff80003671b9e0 to 0xffff80003671bb20)
b9e0: ffff80003671bc00 ffff80003671bbd0 0000000000000000 0000000000000000
ba00: ffff80002c296190 ffff80003671b9f8 ffff80003671bc9c 0000000080808080
ba20: fefefeff31677364 7f7f7f7f7f7f7f7f fefefefefefefeff 0101010101010101
ba40: 0000000000000020 0000000000000000 ffffffffffffffff 0000000000000000
ba60: 0000000000000000 0000000000000001 000000000000040d ffff80003671bbd0
ba80: 0000000000000000 ffff80003671bbd0 0000000000000000 0000004000114809
baa0: ffff000008f74d00 0000000000000124 000000000000001d ffff000008912000
bac0: ffff800035e74180 ffff80003671bb20 ffff000000dcca84 ffff80003671bb20
bae0: ffff0000086f7f30 0000000020000005 ffff80002c296000 ffff800035223900
bb00: 0000ffffffffffff 0000000000000000 ffff80003671bb20 ffff0000086f7f30
[<ffff0000086f7f30>] phy_ethtool_ksettings_get+0x20/0x98
[<ffff000000dcca84>] lan78xx_get_link_ksettings+0x44/0x60 [lan78xx]
[<ffff0000087cbc40>] ethtool_get_settings+0x68/0x210
[<ffff0000087cc0d4>] dev_ethtool+0x214/0x2180
[<ffff0000087e5008>] dev_ioctl+0x400/0x630
[<ffff00000879dd00>] sock_do_ioctl+0x70/0x88
[<ffff00000879f5f8>] sock_ioctl+0x208/0x368
[<ffff0000082cde10>] do_vfs_ioctl+0xb0/0x848
[<ffff0000082ce634>] SyS_ioctl+0x8c/0xa8
Exception stack(0xffff80003671bec0 to 0xffff80003671c000)
bec0: 0000000000000009 0000000000008946 0000fffff4e841d0 0000aa0032687465
bee0: 0000aaaafa2319d4 0000fffff4e841d4 0000000032687465 0000000032687465
bf00: 000000000000001d 7f7fff7f7f7f7f7f 72606b622e71ff4c 7f7f7f7f7f7f7f7f
bf20: 0101010101010101 0000000000000020 ffffffffffffffff 0000ffff7f510c68
bf40: 0000ffff7f6a9d18 0000ffff7f44ce30 000000000000040d 0000ffff7f6f98f0
bf60: 0000fffff4e842c0 0000000000000001 0000aaaafa2c2e00 0000ffff7f6ab000
bf80: 0000fffff4e842c0 0000ffff7f62a000 0000aaaafa2b9f20 0000aaaafa2c2e00
bfa0: 0000fffff4e84818 0000fffff4e841a0 0000ffff7f5ad0cc 0000fffff4e841a0
bfc0: 0000ffff7f44ce3c 0000000080000000 0000000000000009 000000000000001d
bfe0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
The culprit is quite simple: The driver tries to access the phy left and right,
but only actually has a working reference to it when the device is up.
The fix thus is quite simple too: Get a reference to the phy on probe already
and keep it even when the device is going down.
With this patch applied, I can successfully run wicked on my system and bring
the interface up and down as many times as I want, without getting NULL pointer
dereferences in between.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We are currently counting packets with CHECKSUM_COMPLETE as
"hw_rx_csum_ok". This is confusing. Add a new counter.
To make sure it fits in the same cacheline move the less used
error counter to a different location.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a thermal monitoring device for the Marvell 88x3310, which updates
once a second. We also need to hook into the suspend/resume mechanism
to ensure that the thermal monitoring is reconfigured when we resume.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Once dst has been cached in socket via sk_setup_caps(),
it is illegal to call ip_rt_put() (or dst_release()),
since sk_setup_caps() did not change dst refcount.
We can still dereference it since we hold socket lock.
Caugth by syzbot :
BUG: KASAN: use-after-free in atomic_dec_return include/asm-generic/atomic-instrumented.h:198 [inline]
BUG: KASAN: use-after-free in dst_release+0x27/0xa0 net/core/dst.c:185
Write of size 4 at addr ffff8801c54dc040 by task syz-executor4/20088
CPU: 1 PID: 20088 Comm: syz-executor4 Not tainted 4.16.0+ #376
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1a7/0x27d lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:256
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report+0x23c/0x360 mm/kasan/report.c:412
check_memory_region_inline mm/kasan/kasan.c:260 [inline]
check_memory_region+0x137/0x190 mm/kasan/kasan.c:267
kasan_check_write+0x14/0x20 mm/kasan/kasan.c:278
atomic_dec_return include/asm-generic/atomic-instrumented.h:198 [inline]
dst_release+0x27/0xa0 net/core/dst.c:185
sk_dst_set include/net/sock.h:1812 [inline]
sk_dst_reset include/net/sock.h:1824 [inline]
sock_setbindtodevice net/core/sock.c:610 [inline]
sock_setsockopt+0x431/0x1b20 net/core/sock.c:707
SYSC_setsockopt net/socket.c:1845 [inline]
SyS_setsockopt+0x2ff/0x360 net/socket.c:1828
do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4552d9
RSP: 002b:00007f4878126c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f48781276d4 RCX: 00000000004552d9
RDX: 0000000000000019 RSI: 0000000000000001 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000
R10: 00000000200010c0 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000526 R14: 00000000006fac30 R15: 0000000000000000
Allocated by task 20088:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:552
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:489
kmem_cache_alloc+0x12e/0x760 mm/slab.c:3542
dst_alloc+0x11f/0x1a0 net/core/dst.c:104
rt_dst_alloc+0xe9/0x540 net/ipv4/route.c:1520
__mkroute_output net/ipv4/route.c:2265 [inline]
ip_route_output_key_hash_rcu+0xa49/0x2c60 net/ipv4/route.c:2493
ip_route_output_key_hash+0x20b/0x370 net/ipv4/route.c:2322
__ip_route_output_key include/net/route.h:126 [inline]
ip_route_output_flow+0x26/0xa0 net/ipv4/route.c:2577
ip_route_output_ports include/net/route.h:163 [inline]
pptp_connect+0xa84/0x1170 drivers/net/ppp/pptp.c:453
SYSC_connect+0x213/0x4a0 net/socket.c:1639
SyS_connect+0x24/0x30 net/socket.c:1620
do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Freed by task 20082:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
__kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:520
kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:527
__cache_free mm/slab.c:3486 [inline]
kmem_cache_free+0x83/0x2a0 mm/slab.c:3744
dst_destroy+0x266/0x380 net/core/dst.c:140
dst_destroy_rcu+0x16/0x20 net/core/dst.c:153
__rcu_reclaim kernel/rcu/rcu.h:178 [inline]
rcu_do_batch kernel/rcu/tree.c:2675 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2930 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2897 [inline]
rcu_process_callbacks+0xd6c/0x17b0 kernel/rcu/tree.c:2914
__do_softirq+0x2d7/0xb85 kernel/softirq.c:285
The buggy address belongs to the object at ffff8801c54dc000
which belongs to the cache ip_dst_cache of size 168
The buggy address is located 64 bytes inside of
168-byte region [ffff8801c54dc000, ffff8801c54dc0a8)
The buggy address belongs to the page:
page:ffffea0007153700 count:1 mapcount:0 mapping:ffff8801c54dc000 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801c54dc000 0000000000000000 0000000100000010
raw: ffffea0006b34b20 ffffea0006b6c1e0 ffff8801d674a1c0 0000000000000000
page dumped because: kasan: bad access detected
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We would be passing 0 instead of NULL as the rsp argument to
mt7530_fdb_cmd(), fix that.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sparse complains about the following warnings:
drivers/net/dsa/b53/b53_mmap.c:33:31: warning: incorrect type in
initializer (different address spaces)
drivers/net/dsa/b53/b53_mmap.c:33:31: expected unsigned char
[noderef] [usertype] <asn:2>*regs
drivers/net/dsa/b53/b53_mmap.c:33:31: got void *priv
and indeed, while what we are doing is functional, we are dereferencing
a void * pointer into a void __iomem * which is not great. Just use the
defined b53_mmap_priv structure which holds our register base and use
that.
Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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skb->protocol is a __be16 which we would be calling htons() against,
while this is not wrong per-se as it correctly results in swapping the
value on LE hosts, this still upsets sparse. Adopt a similar pattern to
what other drivers do and just assign ip_ver to skb->protocol, and then
use htons() against the different constants such that the compiler can
resolve the values at build time.
Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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skb->protocol is a __be16 which we would be calling htons() against,
while this is not wrong per-se as it correctly results in swapping the
value on LE hosts, this still upsets sparse. Adopt a similar pattern to
what other drivers do and just assign ip_ver to skb->protocol, and then
use htons() against the different constants such that the compiler can
resolve the values at build time.
Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
"Nothing too interesting.
The biggest change is refcnting fix for ata_host - the bug is recent
and can only be triggered on controller hotplug, so very few are
hitting it.
There also are a number of trivial license / error message changes and
some hardware specific changes"
* 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (23 commits)
ahci: imx: add the imx8qm ahci sata support
libata: ensure host is free'd on error exit paths
ata: ahci-platform: add reset control support
ahci: imx: fix the build warning
ata: add Amiga Gayle PATA controller driver
ahci: imx: add the imx6qp ahci sata support
ata: change Tegra124 to Tegra
ata: ahci_tegra: Add AHCI support for Tegra210
ata: ahci_tegra: disable DIPM
ata: ahci_tegra: disable devslp for Tegra124
ata: ahci_tegra: initialize regulators from soc struct
ata: ahci_tegra: Update initialization sequence
dt-bindings: Tegra210: add binding documentation
libata: add refcounting to ata_host
pata_bk3710: clarify license version and use SPDX header
pata_falcon: clarify license version and use SPDX header
pata_it821x: Delete an error message for a failed memory allocation in it821x_firmware_command()
pata_macio: Delete an error message for a failed memory allocation in two functions
pata_mpc52xx: Delete an error message for a failed memory allocation in mpc52xx_ata_probe()
sata_dwc_460ex: Delete an error message for a failed memory allocation in sata_dwc_port_start()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new CEC pin injection code for testing purposes
- DVB frontend cxd2099 promoted from staging
- new platform driver for Sony cxd2880 DVB devices
- new sensor drivers: mt9t112, ov2685, ov5695, ov772x, tda1997x,
tw9910.c
- removal of unused cx18 and ivtv alsa mixers
- the reneseas-ceu driver doesn't depend on soc_camera anymore and
moved from staging
- removed the mantis_vp3028 driver, unused since 2009
- s5p-mfc: add support for version 10 of the MSP
- added a decoder for imon protocol
- atomisp: lots of cleanups
- imx074 and mt9t031: don't depend on soc_camera anymore, being
promoted from staging
- added helper functions to better support DVB I2C binding
- lots of driver improvements and cleanups
* tag 'media/v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (438 commits)
media: v4l2-ioctl: rename a temp var that stores _IOC_SIZE(cmd)
media: fimc-capture: get rid of two warnings
media: dvb-usb-v2: fix a missing dependency of I2C_MUX
media: uvc: to the right check at uvc_ioctl_enum_framesizes()
media: cec-core: fix a bug at cec_error_inj_write()
media: tda9840: cleanup a warning
media: tm6000: avoid casting just to print pointer address
media: em28xx-input: improve error handling code
media: zr364xx: avoid casting just to print pointer address
media: vivid-radio-rx: add a cast to avoid a warning
media: saa7134-alsa: don't use casts to print a buffer address
media: solo6x10: get rid of an address space warning
media: zoran: don't cast pointers to print them
media: ir-kbd-i2c: change the if logic to avoid a warning
media: ir-kbd-i2c: improve error handling code
media: saa7134-input: improve error handling
media: s2255drv: fix a casting warning
media: ivtvfb: Cleanup some warnings
media: videobuf-dma-sg: Fix a weird cast
soc_camera: fix a weird cast on printk
...
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- add a shell script to get Clang version
- improve portability of build scripts
- drop always-enabled CONFIG_THIN_ARCHIVE and remove unused code
- rename built-in.o which is now thin archive to built-in.a
- process clean/build targets one by one to get along with -j option
- simplify ld-option
- improve building with CONFIG_TRIM_UNUSED_KSYMS
- define KBUILD_MODNAME even for objects shared among multiple modules
- avoid linking multiple instances of same objects from composite
objects
- move <linux/compiler_types.h> to c_flags to include it only for C
files
- clean-up various Makefiles
* tag 'kbuild-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
kbuild: get <linux/compiler_types.h> out of <linux/kconfig.h>
kbuild: clean up link rule of composite modules
kbuild: clean up archive rule of built-in.a
kbuild: remove partial section mismatch detection for built-in.a
net: liquidio: clean up Makefile for simpler composite object handling
lib: zstd: clean up Makefile for simpler composite object handling
kbuild: link $(real-obj-y) instead of $(obj-y) into built-in.a
kbuild: rename real-objs-y/m to real-obj-y/m
kbuild: move modname and modname-multi close to modname_flags
kbuild: simplify modname calculation
kbuild: fix modname for composite modules
kbuild: define KBUILD_MODNAME even if multiple modules share objects
kbuild: remove unnecessary $(subst $(obj)/, , ...) in modname-multi
kbuild: Use ls(1) instead of stat(1) to obtain file size
kbuild: link vmlinux only once for CONFIG_TRIM_UNUSED_KSYMS
kbuild: move include/config/ksym/* to include/ksym/*
kbuild: move CONFIG_TRIM_UNUSED_KSYMS code unneeded for external module
kbuild: restore autoksyms.h touch to the top Makefile
kbuild: move 'scripts' target below
kbuild: remove wrong 'touch' in adjust_autoksyms.sh
...
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
"Lots of small enhancements and fixes in this patchset:
- improved the x86-64 compatibility for PCI cards by returning -1UL
for timed out MMIO transactions (instead of crashing)
- fixed HPMC handler for PAT machines: size needs to be multiple of 16
- prepare machine_power_off() to be able to turn rp3410 and c8000
machines off via IMPI
- added code to extract machine info for usage with qemu
- some init sections fixes
- lots of fixes for sparse-, ubsan- and uninitalized variables
warnings"
* 'parisc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix out of array access in match_pci_device()
parisc: Add code generator for Qemu/SeaBIOS machine info
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
parisc: Directly call machine_power_off() in power button driver
parisc: machine_power_off() should call pm_power_off()
parisc/Kconfig: SMP kernels boot on all machines
parisc: Silence uninitialized variable warning in dbl_to_sgl_fcnvff()
parisc: Move various functions and strings to init section
parisc: Convert MAP_TYPE to cover 4 bits on parisc
parisc: Force to various endian types for sparse
parisc/gscps2: Fix sparse warnings
parisc/led: Fix sparse warnings
parisc/parport_gsc: Use NULL to avoid sparse warning
parisc/stifb: Use fb_memset() to avoid sparse warning
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Pull sparc updates from David Miller:
1) Add support for ADI (Application Data Integrity) found in more
recent sparc64 cpus. Essentially this is keyed based access to
virtual memory, and if the key encoded in the virual address is
wrong you get a trap.
The mm changes were reviewed by Andrew Morton and others.
Work by Khalid Aziz.
2) Validate DAX completion index range properly, from Rob Gardner.
3) Add proper Kconfig deps for DAX driver. From Guenter Roeck.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next:
sparc64: Make atomic_xchg() an inline function rather than a macro.
sparc64: Properly range check DAX completion index
sparc: Make auxiliary vectors for ADI available on 32-bit as well
sparc64: Oracle DAX driver depends on SPARC64
sparc64: Update signal delivery to use new helper functions
sparc64: Add support for ADI (Application Data Integrity)
mm: Allow arch code to override copy_highpage()
mm: Clear arch specific VM flags on protection change
mm: Add address parameter to arch_validate_prot()
sparc64: Add auxiliary vectors to report platform ADI properties
sparc64: Add handler for "Memory Corruption Detected" trap
sparc64: Add HV fault type handlers for ADI related faults
sparc64: Add support for ADI register fields, ASIs and traps
mm, swap: Add infrastructure for saving page metadata on swap
signals, sparc: Add signal codes for ADI violations
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Pull networking updates from David Miller:
1) Support offloading wireless authentication to userspace via
NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.
2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
Setup and cleanup of namespaces now all run asynchronously and thus
performance is significantly increased.
3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
Streiff.
4) Support zerocopy on RDS sockets, from Sowmini Varadhan.
5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
Borkmann.
6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
Chevallier.
7) Support grafting of child qdiscs in mlxsw driver, from Nogah
Frankel.
8) Add packet forwarding tests to selftests, from Ido Schimmel.
9) Deal with sub-optimal GSO packets better in BBR congestion control,
from Eric Dumazet.
10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.
11) Add path MTU tests to selftests, from Stefano Brivio.
12) Various bits of IPSEC offloading support for mlx5, from Aviad
Yehezkel, Yossi Kuperman, and Saeed Mahameed.
13) Support RSS spreading on ntuple filters in SFC driver, from Edward
Cree.
14) Lots of sockmap work from John Fastabend. Applications can use eBPF
to filter sendmsg and sendpage operations.
15) In-kernel receive TLS support, from Dave Watson.
16) Add XDP support to ixgbevf, this is significant because it should
allow optimized XDP usage in various cloud environments. From Tony
Nguyen.
17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
Venkataramanan et al.
18) IP fragmentation match offload support in nfp driver, from Pieter
Jansen van Vuuren.
19) Support XDP redirect in i40e driver, from Björn Töpel.
20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
tracepoints in their raw form, from Alexei Starovoitov.
21) Lots of striding RQ improvements to mlx5 driver with many
performance improvements, from Tariq Toukan.
22) Use rhashtable for inet frag reassembly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
net: mvneta: improve suspend/resume
net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
net: bgmac: Correctly annotate register space
route: check sysctl_fib_multipath_use_neigh earlier than hash
fix typo in command value in drivers/net/phy/mdio-bitbang.
sky2: Increase D3 delay to sky2 stops working after suspend
net/mlx5e: Set EQE based as default TX interrupt moderation mode
ibmvnic: Disable irqs before exiting reset from closed state
net: sched: do not emit messages while holding spinlock
vlan: also check phy_driver ts_info for vlan's real device
Bluetooth: Mark expected switch fall-throughs
Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
Bluetooth: btrsi: remove unused including <linux/version.h>
Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
sh_eth: kill useless check in __sh_eth_get_regs()
sh_eth: add sh_eth_cpu_data::no_xdfar flag
ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
"New LED class driver:
- add driver for Mellanox regmap LEDs
Improvement to ledtrig-disk:
- extend disk trigger for reads and writes
Improvements and fixes to existing LED class drivers:
- add more product/board names for PC Engines APU2
- fix wrong dmi_match on PC Engines APU LEDs
- clarify chips supported by LM355x driver
- fix Kconfig text for MLXCPLD, SYSCON, MC13783, NETXBIG
- allow leds-mlxcpld compilation for 32 bit arch"
* tag 'leds_for_4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: Fix wrong dmi_match on PC Engines APU LEDs
leds: Extends disk trigger for reads and writes
leds: Add more product/board names for PC Engines APU2
leds: add driver for support Mellanox regmap LEDs for BMC and x86 platform
leds: fix Kconfig text for MLXCPLD, SYSCON, MC13783, NETXBIG
leds: Clarify supported chips by LM355x driver
leds: leds-mlxcpld: Allow compilation for 32 bit arch
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Pull IPMI updates from Corey Minyard:
"Mostly small changes, as usual.
This does add an IPMI BMC server-side driver, to allow a Linux system
to act as an IPMI controller. That's the biggest change, but it is
just a new driver that is fairly narrow in use.
The other largish change is removing ACPI SPMI probe support, which
should have never really been there in the beginning"
* tag 'for-linus-4.17' of git://github.com/cminyard/linux-ipmi:
ipmi/parisc: Add IPMI chassis poweroff for certain HP PA-RISC and IA-64 servers
ipmi_ssif: Fix kernel panic at msg_done_handler
ipmi:pci: Blacklist a Realtek "IPMI" device
ipmi: Remove ACPI SPMI probing from the system interface driver
ipmi: Remove ACPI SPMI probing from the SSIF (I2C) driver
ipmi: missing error code in try_smi_init()
ipmi: use ARRAY_SIZE for poweroff_functions array sizing calculation
ipmi: Consolidate cleanup code
ipmi: Remove some unnecessary initializations
ipmi: Fix some error cleanup issues
ipmi: Add or fix SPDX-License-Identifier in all files
ipmi: Re-use existing macros for built-in properties
ipmi:pci: Make the PCI defines consistent with normal Linux ones
ipmi: kcs_bmc: coding-style fixes and use new poll type
char/ipmi: add documentation for sysfs interface
ipmi: kcs_bmc: mark expected switch fall-through in kcs_bmc_handle_data
ipmi: add an Aspeed KCS IPMI BMC driver
ipmi: add a KCS IPMI BMC driver
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control bulk updates from Linus Walleij:
"New drivers:
- Qualcomm SDM845: this is their new flagship SoC platform which
seems to be targeted at premium mobile handsets.
- Renesas R-Car M3-N SoC.
- Renesas R8A77980 SoC.
- NXP (ex Freescale) i.MX 6SLL SoC.
- Mediatek MT2712 SoC.
- Allwinner H6 SoC.
Improvements:
- Uniphier adds a few new functions and pins.
- Renesas refactorings and additional pin definitions.
- Improved pin groups for Axis Artpec6.
Cleanup:
- Drop the TZ1090 drivers. This platform is no longer maintained and
is being deleted.
- Drop ST-Ericsson U8540/U9540 support as this was never
productified.
- Overall minor fixes and janitorial"
* tag 'pinctrl-v4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (82 commits)
pinctrl: uniphier: add UART hardware flow control pin-mux settings
pinctrl: sunxi: add support for the Allwinner H6 main pin controller
pinctrl: sunxi: change irq_bank_base to irq_bank_map
pinctrl: sunxi: introduce IRQ bank conversion function
pinctrl: sunxi: refactor irq related register function to have desc
pinctrl: msm8998: Remove owner assignment from platform_driver
pinctrl: uniphier: divide I2S and S/PDIF audio out pin-mux group
pinctrl: uniphier: add PXs2 Audio in/out pin-mux settings
pinctrl/amd: poll InterruptEnable bits in enable_irq
pinctrl: ocelot: fix gpio direction
pinctrl: mtk: fix check warnings.
pintcrl: mtk: support bias-disable of generic and special pins simultaneously
pinctrl: add mt2712 pinctrl driver
pinctrl: pinctrl-single: Fix pcs_request_gpio() when bits_per_mux != 0
pinctrl: imx: Add pinctrl driver support for imx6sll
dt-bindings: imx: update pinctrl doc for imx6sll
pinctrl: intel: Implement intel_gpio_get_direction callback
pinctrl: stm32: add 'depends on HAS_IOMEM' to fix unmet dependency
pinctrl: mediatek: mtk-common: use true and false for boolean values
pinctrl: sunxi: always look for apb block
...
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Pull MMC updates from Ulf Hansson:
"MMC core:
- Export host capabilities through debugfs
- Export card RCA register via sysfs
- Improve card initializing sequence while enabling 4-bit bus
- Export a function to enable/disable wakeup for card detect IRQ
MMC host:
- dw_mmc: Add support for new hi3798cv200 variant
- dw_mmc: Remove support for some deprecated DT properties
- mediatek: Add support for new variant used on MT7622 SoC
- sdhci: Improve wakeup support for SDIO IRQs
- sdhci: Improve wakeup support for card detect IRQs
- sdhci-omap: Add tuning support
- sdhci_omap: Add UHS-I mode support
- sunxi: Prepare for runtime PM support via a few re-factorings
- tmio: deprecate "toshiba,mmc-wrprotect-disable" DT property
- tmio/renesas_sdhi: Consolidate code supporting write protect
- tmio: Improve DMA vs PIO handling
- tmio: Add support for IP-builtin card detection logic"
* tag 'mmc-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (55 commits)
mmc: renesas_sdhi: replace EXT_ACC with HOST_MODE
mmc: update sdio_claim_irq documentation
mmc: Export host capabilities to debugfs.
mmc: core: Disable HPI for certain Micron (Numonyx) eMMC cards
mmc: block: fix updating ext_csd caches on ioctl call
mmc: sunxi: Set our device drvdata earlier
mmc: sunxi: Move the reset deassertion before enabling the clocks
mmc: sunxi: Move resources management to separate functions
mmc: dw_mmc: add support for hi3798cv200 specific extensions of dw-mshc
dt-bindings: mmc: add bindings for hi3798cv200-dw-mshc
mmc: core: Export card RCA register via sysfs
mmc: renesas_sdhi: fix WP detection
mmc: core: Use memdup_user() rather than duplicating its implementation
mmc: dw_mmc-rockchip: correct property names in debug
mmc: sd: Remove redundant err assignment from mmc_read_switch
mmc: sdio: Check the return value of sdio_enable_4bit_bus
mmc: core: Don't try UHS-I mode if 4-bit mode isn't supported
arm64: dts: hi3660: remove 'num-slots' property for dwmmc
ARM: dts: lpc18xx: remove 'num-slots' property for dwmmc
arm64: dts: stratix10: remove 'num-slots' property for dwmmc
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HSI updates from Sebastian Reichel:
- spelling/typo fixes
- remove extra error printing for -ENOMEM
* tag 'hsi-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: hsi_char: Delete an error message for a failed memory allocation in hsc_probe()
HSI: ssi_protocol: fix spelling mistake: "trigerred" -> "triggered"
HSI: ssi_protocol: Delete an error message for a failed memory allocation in ssi_protocol_probe()
HSI: ssi_protocol: Fix a typo in two comment lines
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
- Microsemi Ocelot reset support
- Spreadtrum SC27xx reset support
- generic gpio charger: lot's of cleanups
- axp20x fuel gauge: add AXP813 support
- misc fixes, including one devicetree change for the Nokia N900, that
has been Acked-by Tony Lindgren
* tag 'for-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (27 commits)
power: reset: at91-reset: Switch from the pr_*() to the dev_*() logging functions
power: reset: at91-poweroff: Remove redundant dev_err call in at91_poweroff_probe()
power: reset: at91-poweroff: Switch from the pr_*() to the dev_*() logging functions
power: reset: make function sc27xx_poweroff_shutdown static
power: supply: da9150-fg: remove VLA usage
ARM: dts: omap3-n900: Add link between battery and charger
power: supply: bq2415x: add DT referencing support
power: supply: bq27xxx: support missing supplier device
max17042: propagate of_node to power supply device
power: supply: axp288_fuel_gauge: Fix full status reporting
power: supply: axp288_fuel_gauge: Do not register FG on ECS EF20EA
power: reset: gpio-poweroff: Support for timeout from device property
dt-bindings: power: reset: gpio-poweroff: Add 'timeout-ms' property
power: reset: Add Spreadtrum SC27xx PMIC power off support
power: supply: axp20x_battery: add support for AXP813
dt-bindings: power: supply: axp20x: add AXP813 battery DT binding
power: supply: axp20x_battery: use data struct for variant specific code
power: supply: gpio-charger: Remove pdata from gpio_charger
power: supply: gpio-charger: Use GPIOF_ACTIVE_LOW for legacy setup
power: supply: gpio-charger: Remove redundant dev_err call in probe function
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull SPI updates from Mark Brown:
"A quiet release for SPI, some fixes and small updates for individual
drivers with one bigger change from Linus Walleij which coverts the
bitbanging SPI driver to use the GPIO descriptor API from Linus
Walleij.
Since GPIO descriptors were used by platform data this means there's a
few changes in arch/ making relevant updates for a few platforms and
one misc driver that are affected"
* tag 'spi-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (24 commits)
MAINTAINERS: update Andi's e-mail
spi: spi-atmel: Use correct enum for DMA transfer direction
spi: sh-msiof: Document R-Car M3-N support
spi: sh-msiof: Use correct enum for DMA transfer direction
spi: sprd: Add the support of restarting the system
spi: sprd: Simplify the transfer function
spi: Fix unregistration of controller with fixed SPI bus number
spi: rspi: use correct enum for DMA transfer direction
spi: jcore: disable ref_clk after getting its rate
spi: bcm-qspi: fIX some error handling paths
spi: pxa2xx: Disable runtime PM if controller registration fails
spi: tegra20-slink: use true and false for boolean values
spi: Fix scatterlist elements size in spi_map_buf
spi: atmel: init FIFOs before spi enable
spi: orion: Prepare space for per-child options
spi: orion: Make the error message greppable
spi: orion: Rework GPIO CS handling
spi: bcm2835aux: Avoid 64-bit arithmetic in xfer len calc
spi: spi-gpio: Augment device tree bindings
spi: spi-gpio: Rewrite to use GPIO descriptors
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"A very small set of updates for the regulator API this time around,
there's a few bug fixes and also:
- Conversion of the regulator API to use GPIO descriptors rather than
numbers from Linus Walleij.
- New drivers for Marvell 88PG86x and Qualcomm PM8998 and PMI8998"
* tag 'regulator-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: qcom: smd: Add pm8998 and pmi8998 regulators
regulator: core: Add missing blank line between functions
regulator: qcom_smd: Drop regulator/{machine,of_regulator} includes
regulator: giving regulator controlling gpios a non-empty label when used through the devicetree.
regulator: gpio: Fix some error handling paths in 'gpio_regulator_probe()'
regulator: 88pg86x: new i2c dual regulator chip
regulator: 88pg86x: add DT bindings document
regulator: da9211: Pass descriptors instead of GPIO numbers
regulator: da9055: Pass descriptor instead of GPIO number
regulator: core: Support passing an initialized GPIO enable descriptor
regulator: dt: regulator-name is required property
regulator: of: Add a missing 'of_node_put()' in an error handling path of 'of_regulator_match()'
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"This is a fairly large set of updates for regmap, mainly bugfixes.
The biggest bit of this is some fixes for the bulk operations code
which had issues in some use cases, Charles Keepax has sorted them
out. We also gained the ability to use debugfs with syscon regmaps and
to specify the clock to be used with MMIO regmaps"
* tag 'regmap-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (21 commits)
regmap: debugfs: Improve warning message on debugfs_create_dir() failure
regmap: debugfs: Free map->debugfs_name when debugfs_create_dir() failed
regmap: debugfs: Don't leak dummy names
regmap: debugfs: Disambiguate dummy debugfs file name
regmap: mmio: Add function to attach a clock
regmap: Merge redundant handling in regmap_bulk_write
regmap: Tidy up regmap_raw_write chunking code
regmap: Move the handling for max_raw_write into regmap_raw_write
regmap: Remove unnecessary printk for failed allocation
regmap: Format data for raw write in regmap_bulk_write
regmap: use debugfs even when no device
regmap: Allow missing device in regmap_name_read_file()
regmap: Use _regmap_read in regmap_bulk_read
regmap: Tidy up regmap_raw_read chunking code
regmap: Move the handling for max_raw_read into regmap_raw_read
regmap: Use helper function for register offset
regmap: Don't use format_val in regmap_bulk_read
regmap: Correct comparison in regmap_cached
regmap: Correct offset handling in regmap_volatile_range
regmap-i2c: Off by one in regmap_i2c_smbus_i2c_read/write()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update the cpuidle poll state definition to reduce excessive
energy usage related to it, add new CPU ID to the RAPL power capping
driver, update the ACPI system suspend code to handle some special
cases better, extend the PM core's device links code slightly, add new
sysfs attribute for better suspend-to-idle diagnostics and easier
hibernation handling, update power management tools and clean up
cpufreq quite a bit.
Specifics:
- Modify the cpuidle poll state implementation to prevent CPUs from
staying in the loop in there for excessive times (Rafael Wysocki).
- Add Intel Cannon Lake chips support to the RAPL power capping
driver (Joe Konno).
- Add reference counting to the device links handling code in the PM
core (Lukas Wunner).
- Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
suspend code (Rafael Wysocki).
- Allow devices to be put into deeper low-power states via ACPI if
both _SxD and _SxW are missing (Daniel Drake).
- Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
keyboard wakeup issue on Asus UX331UA (Chris Chiu).
- Prevent the PCMCIA library code from aborting suspend-to-idle due
to noirq suspend failures resulting from incorrect assumptions
(Rafael Wysocki).
- Add coupled cpuidle supprt to the Exynos3250 platform (Marek
Szyprowski).
- Add new sysfs file to make it easier to specify the image storage
location during hibernation (Mario Limonciello).
- Add sysfs files for collecting suspend-to-idle usage and time
statistics for CPU idle states (Rafael Wysocki).
- Update the pm-graph utilities (Todd Brandt).
- Reduce the kernel log noise related to reporting Low-power Idle
constraings by the ACPI system suspend code (Rafael Wysocki).
- Make it easier to distinguish dedicated wakeup IRQs in the
/proc/interrupts output (Tony Lindgren).
- Add the frequency table validation in cpufreq to the core and drop
it from a number of cpufreq drivers (Viresh Kumar).
- Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
bindings (Viresh Kumar).
- Clean up the CPU online error code path in the cpufreq core (Viresh
Kumar).
- Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
Kumar).
- Drop memory allocation error messages from a few places in cpufreq
and cpuildle drivers (Markus Elfring)"
* tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
cpufreq: CPPC: Use transition_delay_us depending transition_latency
PM / hibernate: Change message when writing to /sys/power/resume
PM / hibernate: Make passing hibernate offsets more friendly
cpuidle: poll_state: Avoid invoking local_clock() too often
PM: cpuidle/suspend: Add s2idle usage and time state attributes
cpuidle: Enable coupled cpuidle support on Exynos3250 platform
cpuidle: poll_state: Add time limit to poll_idle()
cpufreq: tegra186: Don't validate the frequency table twice
cpufreq: speedstep: Don't validate the frequency table twice
cpufreq: sparc: Don't validate the frequency table twice
cpufreq: sh: Don't validate the frequency table twice
cpufreq: sfi: Don't validate the frequency table twice
cpufreq: scpi: Don't validate the frequency table twice
cpufreq: sc520: Don't validate the frequency table twice
cpufreq: s3c24xx: Don't validate the frequency table twice
cpufreq: qoirq: Don't validate the frequency table twice
cpufreq: pxa: Don't validate the frequency table twice
cpufreq: ppc_cbe: Don't validate the frequency table twice
cpufreq: powernow: Don't validate the frequency table twice
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to follow upstream revision
20180313 which includes fixes related to the so-called module-level
AML (mostly "if" type of statements outside of any methods) that
should improve the handling of systems that load alternative SSDTs
depending on the current configuration, for example, and event
handling fixes related to disabling and enabling GPEs on system
startup and on suspend/resume.
Moreover, the ACPICA license boilerplate is replaced with SPDX license
IDs which alone reduces the number of lines of ACPICA code in the
kernel quite a bit.
Also added is a new driver for the generic ACPI Time and Alarm Device
(TAD). At the moment it only handles the most basic capabilities of
the TAD, however.
In addition to that the ACPI battery driver is improved to handle
battery thresholds on ThinkPads, among other things, some bugs are
fixed, a new backlight quirk is added and some documentation is
updated.
Specifics:
- Update the in-kernel ACPICA code to upstream revision 20180313
including:
* Module-level AML code handling fixes and simplifications (Bob
Moore, Erik Schmauss).
* Fixes and cleanups related to messaging (Bob Moore).
* Events handling fixes related to disabling and enabling GPEs
(Erik Schmauss).
* Introduction of SPDX license identifiers and removal of license
boilerplate in multiple files (Erik Schmauss).
* Assorted fixes and cleanups (Bob Moore, Erik Schmauss, Hans de
Goede, Seunghun Han).
- Add new basic driver for the ACPI Time and Alarm Device (Rafael
Wysocki).
- Modify the ACPI battery driver to support battery thresholds on
Lenovo ThinkPads (Ognjen Galic, Colin Ian King).
- Avoid reporting battery capacity over 100 in the ACPI battery
driver in some cases (Laszlo Toth).
- Make the kernel recognize an OEM _OSI string from Dell to avoid
power management issues with NVidia GPUs in Dell platforms (Alex
Hung).
- Make the PCI IRQ management code handle missing _PRS cleanly (Alex
Hung).
- Fix uevent notifications related to device hotplut (Lee, Chun-Yi).
- Prevent the ACPI PAD driver from leaking memory (Lenny Szubowicz).
- Update the ACPI CPPC library code to include subspace IDs in the
kernel messages logged by it (George Cherian).
- Add backlight quirk for Samsung 670Z5E (Hans de Goede).
- Add the NFIT and HMAT tables to the list of ACPI tables that can be
overridden via initrd (Dan Williams).
- Fix and clean up some ACPI documentation and Kconfig help language
(Aishwarya Pant, Randy Dunlap).
- Replace license boilerplate with an SPDX license ID in the ACPI
PMIC operation region handling code (Rajmohan Mani)"
* tag 'acpi-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (39 commits)
ACPI: acpi_pad: Fix memory leak in power saving threads
ACPI / video: Add quirk to force acpi-video backlight on Samsung 670Z5E
ACPI: Add Time and Alarm Device (TAD) driver
ACPI / scan: Send change uevent with offine environmental data
ACPI / Kconfig: Update ACPI_PROCFS_POWER help text
ACPI / OSI: Add OEM _OSI strings to disable NVidia RTD3
ACPICA: Update version to 20180313
ACPICA: Cleanup/simplify module-level code support
ACPICA: Events: add a return on failure from acpi_hw_register_read
ACPICA: adding SPDX headers
ACPICA: Rename a global for clarity, no functional change
ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro
ACPICA: Change a compile-time option to a runtime option
ACPICA: Remove calling of _STA from acpi_get_object_info()
ACPICA: AML Debug Object: Don't ignore output of zero-length strings
ACPICA: Fix memory leak on unusual memory leak
ACPICA: Events: Dispatch GPEs after enabling for the first time
ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations
ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume
ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
Pull removal of in-kernel calls to syscalls from Dominik Brodowski:
"System calls are interaction points between userspace and the kernel.
Therefore, system call functions such as sys_xyzzy() or
compat_sys_xyzzy() should only be called from userspace via the
syscall table, but not from elsewhere in the kernel.
At least on 64-bit x86, it will likely be a hard requirement from
v4.17 onwards to not call system call functions in the kernel: It is
better to use use a different calling convention for system calls
there, where struct pt_regs is decoded on-the-fly in a syscall wrapper
which then hands processing over to the actual syscall function. This
means that only those parameters which are actually needed for a
specific syscall are passed on during syscall entry, instead of
filling in six CPU registers with random user space content all the
time (which may cause serious trouble down the call chain). Those
x86-specific patches will be pushed through the x86 tree in the near
future.
Moreover, rules on how data may be accessed may differ between kernel
data and user data. This is another reason why calling sys_xyzzy() is
generally a bad idea, and -- at most -- acceptable in arch-specific
code.
This patchset removes all in-kernel calls to syscall functions in the
kernel with the exception of arch/. On top of this, it cleans up the
three places where many syscalls are referenced or prototyped, namely
kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h"
* 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits)
bpf: whitelist all syscalls for error injection
kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions
kernel/sys_ni: sort cond_syscall() entries
syscalls/x86: auto-create compat_sys_*() prototypes
syscalls: sort syscall prototypes in include/linux/compat.h
net: remove compat_sys_*() prototypes from net/compat.h
syscalls: sort syscall prototypes in include/linux/syscalls.h
kexec: move sys_kexec_load() prototype to syscalls.h
x86/sigreturn: use SYSCALL_DEFINE0
x86: fix sys_sigreturn() return type to be long, not unsigned long
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
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git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 architecture support from Greentime Hu:
"This contains the core nds32 Linux port (including interrupt
controller driver and timer driver), which has been through seven
rounds of review on mailing list.
It is able to boot to shell and passes most LTP-2017 testsuites in
nds32 AE3XX platform:
Total Tests: 1901
Total Skipped Tests: 618
Total Failures: 78"
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* tag 'nds32-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: (44 commits)
nds32: To use the generic dump_stack()
nds32: fix building failed if using elf toolchain.
nios2: add ioremap_nocache declaration before include asm-generic/io.h.
nds32: fix building failed if using older version gcc.
dt-bindings: timer: Add andestech atcpit100 timer binding doc
clocksource/drivers/atcpit100: VDSO support
clocksource/drivers/atcpit100: Add andestech atcpit100 timer
net: faraday add nds32 support.
irqchip: Andestech Internal Vector Interrupt Controller driver
dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller
dt-bindings: nds32 SoC Bindings
dt-bindings: nds32 L2 cache controller Bindings
dt-bindings: nds32 CPU Bindings
MAINTAINERS: Add nds32
nds32: Build infrastructure
nds32: defconfig
nds32: Miscellaneous header files
nds32: Device tree support
nds32: Generic timers support
nds32: Loadable modules
...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Macintosh enhancements and fixes
- Remove useless memory layout printing using hashed pointers
- Add missing Amiga Zorro bus DMA mask
- Small fixes and cleanups
- Defconfig updates
* tag 'm68k-for-v4.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/mac: Remove bogus "FIXME" comment
m68k/mac: Enable RTC for 100-series PowerBooks
m68k/mac: Clean up whitespace and remove redundant parentheses
m68k/defconfig: Update defconfigs for v4.16-rc5
zorro: Set up z->dev.dma_mask for the DMA API
m68k/time: Stop validating rtc_time in .read_time
m68k/mm: Stop printing the virtual memory layout
macintosh/via-pmu68k: Initialize PMU driver with setup_arch and arch_initcall
m68k/mac: Fix apparent race condition in Baboon interrupt dispatch
m68k/mac: Enable PDMA support for PowerBook 190
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main EFI changes in this cycle were:
- Fix the apple-properties code (Andy Shevchenko)
- Add WARN() on arm64 if UEFI Runtime Services corrupt the reserved
x18 register (Ard Biesheuvel)
- Use efi_switch_mm() on x86 instead of manipulating %cr3 directly
(Sai Praneeth)
- Fix early memremap leak in ESRT code (Ard Biesheuvel)
- Switch to L"xxx" notation for wide string literals (Ard Biesheuvel)
- ... plus misc other cleanups and bugfixes"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3
x86/efi: Replace efi_pgd with efi_mm.pgd
efi: Use string literals for efi_char16_t variable initializers
efi/esrt: Fix handling of early ESRT table mapping
efi: Use efi_mm in x86 as well as ARM
efi: Make const array 'apple' static
efi/apple-properties: Use memremap() instead of ioremap()
efi: Reorder pr_notice() with add_device_randomness() call
x86/efi: Replace GFP_ATOMIC with GFP_KERNEL in efi_query_variable_store()
efi/arm64: Check whether x18 is preserved by runtime services calls
efi/arm*: Stop printing addresses of virtual mappings
efi/apple-properties: Remove redundant attribute initialization from unmarshal_key_value_pairs()
efi/arm*: Only register page tables when they exist
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 dma mapping updates from Ingo Molnar:
"This tree, by Christoph Hellwig, switches over the x86 architecture to
the generic dma-direct and swiotlb code, and also unifies more of the
dma-direct code between architectures. The now unused x86-only
primitives are removed"
* 'x86-dma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
dma-mapping: Don't clear GFP_ZERO in dma_alloc_attrs
swiotlb: Make swiotlb_{alloc,free}_buffer depend on CONFIG_DMA_DIRECT_OPS
dma/swiotlb: Remove swiotlb_{alloc,free}_coherent()
dma/direct: Handle force decryption for DMA coherent buffers in common code
dma/direct: Handle the memory encryption bit in common code
dma/swiotlb: Remove swiotlb_set_mem_attributes()
set_memory.h: Provide set_memory_{en,de}crypted() stubs
x86/dma: Remove dma_alloc_coherent_gfp_flags()
iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up intel_{alloc,free}_coherent()
iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()
x86/dma/amd_gart: Use dma_direct_{alloc,free}()
x86/dma/amd_gart: Look at dev->coherent_dma_mask instead of GFP_DMA
x86/dma: Use generic swiotlb_ops
x86/dma: Use DMA-direct (CONFIG_DMA_DIRECT_OPS=y)
x86/dma: Remove dma_alloc_coherent_mask()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull wait_var_event updates from Ingo Molnar:
"This introduces the new wait_var_event() API, which is a more flexible
waiting primitive than wait_on_atomic_t().
All wait_on_atomic_t() users are migrated over to the new API and
wait_on_atomic_t() is removed. The migration fixes one bug and should
result in no functional changes for the other usecases"
* 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Improve __var_waitqueue() code generation
sched/wait: Remove the wait_on_atomic_t() API
sched/wait, arch/mips: Fix and convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/ocfs2: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/nfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/btrfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/afs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/media: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/drm: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait: Introduce wait_var_event()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"The main changes in this cycle were:
- Add "Jailhouse" hypervisor support (Jan Kiszka)
- Update DeviceTree support (Ivan Gorinov)
- Improve DMI date handling (Andy Shevchenko)"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/PCI: Fix a potential regression when using dmi_get_bios_year()
firmware/dmi_scan: Uninline dmi_get_bios_year() helper
x86/devicetree: Use CPU description from Device Tree
of/Documentation: Specify local APIC ID in "reg"
MAINTAINERS: Add entry for Jailhouse
x86/jailhouse: Allow to use PCI_MMCONFIG without ACPI
x86: Consolidate PCI_MMCONFIG configs
x86: Align x86_64 PCI_MMCONFIG with 32-bit variant
x86/jailhouse: Enable PCI mmconfig access in inmates
PCI: Scan all functions when running over Jailhouse
jailhouse: Provide detection for non-x86 systems
x86/devicetree: Fix device IRQ settings in DT
x86/devicetree: Initialize device tree before using it
pci: Simplify code by using the new dmi_get_bios_year() helper
ACPI/sleep: Simplify code by using the new dmi_get_bios_year() helper
x86/pci: Simplify code by using the new dmi_get_bios_year() helper
dmi: Introduce the dmi_get_bios_year() helper function
x86/platform/quark: Re-use DEFINE_SHOW_ATTRIBUTE() macro
x86/platform/atom: Re-use DEFINE_SHOW_ATTRIBUTE() macro
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- Extend the memmap= boot parameter syntax to allow the redeclaration
and dropping of existing ranges, and to support all e820 range types
(Jan H. Schönherr)
- Improve the W+X boot time security checks to remove false positive
warnings on Xen (Jan Beulich)
- Support booting as Xen PVH guest (Juergen Gross)
- Improved 5-level paging (LA57) support, in particular it's possible
now to have a single kernel image for both 4-level and 5-level
hardware (Kirill A. Shutemov)
- AMD hardware RAM encryption support (SME/SEV) fixes (Tom Lendacky)
- Preparatory commits for hardware-encrypted RAM support on Intel CPUs.
(Kirill A. Shutemov)
- Improved Intel-MID support (Andy Shevchenko)
- Show EFI page tables in page_tables debug files (Andy Lutomirski)
- ... plus misc fixes and smaller cleanups
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
x86/cpu/tme: Fix spelling: "configuation" -> "configuration"
x86/boot: Fix SEV boot failure from change to __PHYSICAL_MASK_SHIFT
x86/mm: Update comment in detect_tme() regarding x86_phys_bits
x86/mm/32: Remove unused node_memmap_size_bytes() & CONFIG_NEED_NODE_MEMMAP_SIZE logic
x86/mm: Remove pointless checks in vmalloc_fault
x86/platform/intel-mid: Add special handling for ACPI HW reduced platforms
ACPI, x86/boot: Introduce the ->reduced_hw_early_init() ACPI callback
ACPI, x86/boot: Split out acpi_generic_reduce_hw_init() and export
x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf
x86/pconfig: Detect PCONFIG targets
x86/tme: Detect if TME and MKTME is activated by BIOS
x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G
x86/boot/compressed/64: Use page table in trampoline memory
x86/boot/compressed/64: Use stack from trampoline memory
x86/boot/compressed/64: Make sure we have a 32-bit code segment
x86/mm: Do not use paravirtualized calls in native_set_p4d()
kdump, vmcoreinfo: Export pgtable_l5_enabled value
x86/boot/compressed/64: Prepare new top-level page table for trampoline
x86/boot/compressed/64: Set up trampoline memory
x86/boot/compressed/64: Save and restore trampoline memory
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Ingo Molnar:
"The main x86 APIC/IOAPIC changes in this cycle were:
- Robustify kexec support to more carefully restore IRQ hardware
state before calling into kexec/kdump kernels. (Baoquan He)
- Clean up the local APIC code a bit (Dou Liyang)
- Remove unused callbacks (David Rientjes)"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Finish removing unused callbacks
x86/apic: Drop logical_smp_processor_id() inline
x86/apic: Modernize the pending interrupt code
x86/apic: Move pending interrupt check code into it's own function
x86/apic: Set up through-local-APIC mode on the boot CPU if 'noapic' specified
x86/apic: Rename variables and functions related to x86_io_apic_ops
x86/apic: Remove the (now) unused disable_IO_APIC() function
x86/apic: Fix restoring boot IRQ mode in reboot and kexec/kdump
x86/apic: Split disable_IO_APIC() into two functions to fix CONFIG_KEXEC_JUMP=y
x86/apic: Split out restore_boot_irq_mode() from disable_IO_APIC()
x86/apic: Make setup_local_APIC() static
x86/apic: Simplify init_bsp_APIC() usage
x86/x2apic: Mark set_x2apic_phys_mode() as __init
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Ingo Molnar:
"The main changes in this cycle were:
- AMD MCE support/decoding improvements (Yazen Ghannam)
- general MCE header cleanups and reorganization (Borislav Petkov)"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "x86/mce/AMD: Collect error info even if valid bits are not set"
x86/MCE: Cleanup and complete struct mce fields definitions
x86/mce/AMD: Carve out SMCA get_block_address() code
x86/mce/AMD: Get address from already initialized block
x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type
x86/mce/AMD: Pass the bank number to smca_get_bank_type()
x86/mce/AMD: Collect error info even if valid bits are not set
x86/mce: Issue the 'mcelog --ascii' message only on !AMD
x86/mce: Convert 'struct mca_config' bools to a bitfield
x86/mce: Put private structures and definitions into the internal header
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Using this helper allows us to avoid the in-kernel calls to the
sys_ioperm() syscall. The ksys_ prefix denotes that this function is meant
as a drop-in replacement for the syscall. In particular, it uses the same
calling convention as sys_ioperm().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: x86@kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_unshare() syscall. The ksys_ prefix denotes that this function is meant
as a drop-in replacement for the syscall. In particular, it uses the same
calling convention as sys_unshare().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_sync() syscall. The ksys_ prefix denotes that this function
is meant as a drop-in replacement for the syscall. In particular, it
uses the same calling convention as sys_sync().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the sys_chdir()
syscall. The ksys_ prefix denotes that this function is meant as a drop-in
replacement for the syscall. In particular, it uses the same calling
convention as sys_chdir().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_chroot() syscall. The ksys_ prefix denotes that this function is
meant as a drop-in replacement for the syscall. In particular, it uses the
same calling convention as sys_chroot().
In the near future, the fs-external callers of ksys_chroot() should be
converted to use kern_path()/set_fs_root() directly. Then ksys_chroot()
can be moved within sys_chroot() again.
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the sys_mount()
syscall. The ksys_ prefix denotes that this function is meant as a drop-in
replacement for the syscall. In particular, it uses the same calling
convention as sys_mount().
In the near future, all callers of ksys_mount() should be converted to call
do_mount() directly.
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main kernel side changes were:
- Modernize the kprobe and uprobe creation/destruction tooling ABIs:
The existing text based APIs (kprobe_events and uprobe_events in
tracefs), are naive, limited ABIs in that they require user-space
to clean up after themselves, which is both difficult and fragile
if the tool is buggy or exits unexpectedly. In other words they are
not really suited for modern, robust tooling.
So introduce a modern, file descriptor based ABI that does not have
these limitations: introduce the 'perf_kprobe' and 'perf_uprobe'
PMUs and extend the perf_event_open() syscall to create events with
a kprobe/uprobe attached to them. These [k,u]probe are associated
with this file descriptor, so they are not available in tracefs.
(Song Liu)
- Intel Cannon Lake CPU support (Harry Pan)
- Intel PT cleanups (Alexander Shishkin)
- Improve the performance of pinned/flexible event groups by using RB
trees (Alexey Budankov)
- Add PERF_EVENT_IOC_MODIFY_ATTRIBUTES which allows the modification
of hardware breakpoints, which new ABI variant massively speeds up
existing tooling that uses hardware breakpoints to instrument (and
debug) memory usage.
(Milind Chabbi, Jiri Olsa)
- Various Intel PEBS handling fixes and improvements, and other Intel
PMU improvements (Kan Liang)
- Various perf core improvements and optimizations (Peter Zijlstra)
- ... misc cleanups, fixes and updates.
There's over 200 tooling commits, here's an (imperfect) list of
highlights:
- 'perf annotate' improvements:
* Recognize and handle jumps to other functions as calls, which
improves the navigation along jumps and back. (Arnaldo Carvalho
de Melo)
* Add the 'P' hotkey in TUI annotation to dump annotation output
into a file, to ease e-mail reporting of annotation details.
(Arnaldo Carvalho de Melo)
* Add an IPC/cycles column to the TUI (Jin Yao)
* Improve s390 assembly annotation (Thomas Richter)
* Refactor the output formatting logic to better separate it into
interactive and non-interactive features and add the --stdio2
output variant to demonstrate this. (Arnaldo Carvalho de Melo)
- 'perf script' improvements:
* Add Python 3 support (Jaroslav Škarvada)
* Add --show-round-event (Jiri Olsa)
- 'perf c2c' improvements:
* Add NUMA analysis support (Jiri Olsa)
- 'perf trace' improvements:
* Improve PowerPC support (Ravi Bangoria)
- 'perf inject' improvements:
* Integrate ARM CoreSight traces (Robert Walker)
- 'perf stat' improvements:
* Add the --interval-count option (yuzhoujian)
* Add the --timeout option (yuzhoujian)
- 'perf sched' improvements (Changbin Du)
- Vendor events improvements :
* Add IBM s390 vendor events (Thomas Richter)
* Add and improve arm64 vendor events (John Garry, Ganapatrao
Kulkarni)
* Update POWER9 vendor events (Sukadev Bhattiprolu)
- Intel PT tooling improvements (Adrian Hunter)
- PMU handling improvements (Agustin Vega-Frias)
- Record machine topology in perf.data (Jiri Olsa)
- Various overwrite related cleanups (Kan Liang)
- Add arm64 dwarf post unwind support (Kim Phillips, Jean Pihet)
- ... and lots of other changes, cleanups and fixes, see the shortlog
and Git history for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf/x86/intel: Enable C-state residency events for Cannon Lake
perf/x86/intel: Add Cannon Lake support for RAPL profiling
perf/x86/pt, coresight: Clean up address filter structure
perf vendor events s390: Add JSON files for IBM z14
perf vendor events s390: Add JSON files for IBM z13
perf vendor events s390: Add JSON files for IBM zEC12 zBC12
perf vendor events s390: Add JSON files for IBM z196
perf vendor events s390: Add JSON files for IBM z10EC z10BC
perf mmap: Be consistent when checking for an unmaped ring buffer
perf mmap: Fix accessing unmapped mmap in perf_mmap__read_done()
perf build: Fix check-headers.sh opts assignment
perf/x86: Update rdpmc_always_available static key to the modern API
perf annotate: Use absolute addresses to calculate jump target offsets
perf annotate: Defer searching for comma in raw line till it is needed
perf annotate: Support jumping from one function to another
perf annotate: Add "_local" to jump/offset validation routines
perf python: Reference Py_None before returning it
perf annotate: Mark jumps to outher functions with the call arrow
perf annotate: Pass function descriptor to its instruction parsing routines
perf annotate: No need to calculate notes->start twice
...
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Current suspend/resume implementation reuses the mvneta_open() and
mvneta_close(), but it could be optimized to take only necessary
actions during suspend/resume.
One obvious problem of current implementation is: after hundreds of
system suspend/resume cycles, the resume of mvneta could fail due to
fragmented dma coherent memory. After this patch, the non-necessary
memory alloc/free is optimized out.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This is to prepare the suspend/resume improvement in next patch. The
SW parts can be optimized out during resume.
As for rxq handling during suspend, we'd like to drop packets by
calling mvneta_rxq_drop_pkts() which is both SW and HW operation,
so we don't split rxq deinit.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull drm updates from Dave Airlie:
"Cannonlake and Vega12 support are probably the two major things. This
pull lacks nouveau, Ben had some unforseen leave and a few other
blockers so we'll see how things look or maybe leave it for this merge
window.
core:
- Device links to handle sound/gpu pm dependency
- Color encoding/range properties
- Plane clipping into plane check helper
- Backlight helpers
- DP TP4 + HBR3 helper support
amdgpu:
- Vega12 support
- Enable DC by default on all supported GPUs
- Powerplay restructuring and cleanup
- DC bandwidth calc updates
- DC backlight on pre-DCE11
- TTM backing store dropping support
- SR-IOV fixes
- Adding "wattman" like functionality
- DC crc support
- Improved DC dual-link handling
amdkfd:
- GPUVM support for dGPU
- KFD events for dGPU
- Enable PCIe atomics for dGPUs
- HSA process eviction support
- Live-lock fixes for process eviction
- VM page table allocation fix for large-bar systems
panel:
- Raydium RM68200
- AUO G104SN02 V2
- KEO TX31D200VM0BAA
- ARM Versatile panels
i915:
- Cannonlake support enabled
- AUX-F port support added
- Icelake base enabling until internal milestone of forcewake support
- Query uAPI interface (used for GPU topology information currently)
- Compressed framebuffer support for sprites
- kmem cache shrinking when GPU is idle
- Avoid boosting GPU when waited item is being processed already
- Avoid retraining LSPCON link unnecessarily
- Decrease request signaling latency
- Deprecation of I915_SET_COLORKEY_NONE
- Kerneldoc and compiler warning cleanup for upcoming CI enforcements
- Full range ycbcr toggling
- HDCP support
i915/gvt:
- Big refactor for shadow ppgtt
- KBL context save/restore via LRI cmd (Weinan)
- Properly unmap dma for guest page (Changbin)
vmwgfx:
- Lots of various improvements
etnaviv:
- Use the drm gpu scheduler
- prep work for GC7000L support
vc4:
- fix alpha blending
- Expose perf counters to userspace
pl111:
- Bandwidth checking/limiting
- Versatile panel support
sun4i:
- A83T HDMI support
- A80 support
- YUV plane support
- H3/H5 HDMI support
omapdrm:
- HPD support for DVI connector
- remove lots of static variables
msm:
- DSI updates from 10nm / SDM845
- fix for race condition with a3xx/a4xx fence completion irq
- some refactoring/prep work for eventual a6xx support (ie. when we
have a userspace)
- a5xx debugfs enhancements
- some mdp5 fixes/cleanups to prepare for eventually merging
writeback
- support (ie. when we have a userspace)
tegra:
- mmap() fixes for fbdev devices
- Overlay plane for hw cursor fix
- dma-buf cache maintenance support
mali-dp:
- YUV->RGB conversion support
rockchip:
- rk3399/chromebook fixes and improvements
rcar-du:
- LVDS support move to drm bridge
- DT bindings for R8A77995
- Driver/DT support for R8A77970
tilcdc:
- DRM panel support"
* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
drm/i915: Fix hibernation with ACPI S0 target state
drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
drm/amdkfd: Use ordered workqueue to restore processes
drm/amdgpu: Fix acquiring VM on large-BAR systems
drm/amd/pp: clean header file hwmgr.h
drm/amd/pp: use mlck_table.count for array loop index limit
drm: Fix uabi regression by allowing garbage mode->type from userspace
drm/amdgpu: Add an ATPX quirk for hybrid laptop
drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
drm/amd/pp: Add new asic support in pp_psm.c
drm/amd/pp: Clean up powerplay code on Vega12
drm/amd/pp: Add smu irq handlers for legacy asics
drm/amd/pp: Fix set wrong temperature range on smu7
drm/amdgpu: Don't change preferred domian when fallback GTT v5
drm/vmwgfx: Bump version patchlevel and date
drm/vmwgfx: use monotonic event timestamps
drm/vmwgfx: Unpin the screen object backup buffer when not used
drm/vmwgfx: Stricter count of legacy surface device resources
...
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'spi/topic/tegra20-slink' into spi-next
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'spi/topic/orion', 'spi/topic/pxa2xx' and 'spi/topic/rspi' into spi-next
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'spi/topic/bcm2835aux', 'spi/topic/dw' and 'spi/topic/gpio' into spi-next
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