The listening endpoint should always be dereferenced at the end of
pass_accept_req().
Fixes: f86fac79af ("RDMA/iw_cxgb4: atomic find and reference for listening endpoints")
Cc: stable@vger.kernel.org
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Merge tag 'for-linus-4.14b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"A fix for a missing __init annotation and two cleanup patches"
* tag 'for-linus-4.14b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen, arm64: drop dummy lookup_address()
xen: don't compile pv-specific parts if XEN_PV isn't configured
xen: x86: mark xen_find_pt_base as __init
Four fixes for the new instruction emulation code. A fix for CPU offline on bare
metal machines when certain idle states are not supported, and a fix for a
device_node refcounting oops during CPU hotplug, caused by recent changes.
Going to stable are a fix for an oops during core dump on machines that have TM
(Transactional Memory) disabled. Reordering some EEH initialisation to avoid
trashing memory, and another device_node refcounting fix.
And a few other minor things.
Thanks to:
Anton Blanchard, Benjamin Herrenschmidt, Cyril Bur, Gautham R. Shenoy, Gustavo
Romero, Kamalesh Babulal, Matthew Weber, Matt Weber, Naveen N. Rao, Nicholas
Piggin, Pavithra Prakash, Ravi Bangoria, Ronak Desai, Scott Wood, Tyrel
Datwyler.
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Merge tag 'powerpc-4.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"It turns out our single-fix pull from last week was too good to be
true. I missed a few fixes in that pull that had already come in
because I was on leave, but also we hadn't found the bugs yet. So this
week it's a bit bigger, though not ridiculous. Hopefully things will
settle down from here on.
Four fixes for the new instruction emulation code. A fix for CPU
offline on bare metal machines when certain idle states are not
supported, and a fix for a device_node refcounting oops during CPU
hotplug, caused by recent changes.
Going to stable are a fix for an oops during core dump on machines
that have TM (Transactional Memory) disabled. Reordering some EEH
initialisation to avoid trashing memory, and another device_node
refcounting fix.
And a few other minor things.
Thanks to: Anton Blanchard, Benjamin Herrenschmidt, Cyril Bur, Gautham
R. Shenoy, Gustavo Romero, Kamalesh Babulal, Matthew Weber, Matt Weber,
Naveen N. Rao, Nicholas Piggin, Pavithra Prakash, Ravi Bangoria, Ronak
Desai, Scott Wood, Tyrel Datwyler"
* tag 'powerpc-4.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries: Fix parent_dn reference leak in add_dt_node()
powerpc/pseries: Fix "OF: ERROR: Bad of_node_put() on /cpus" during DLPAR
powerpc/eeh: Create PHB PEs after EEH is initialized
powerpc/kprobes: Update optprobes to use emulate_update_regs()
powerpc/powernv: Clear LPCR[PECE1] via stop-api only for deep state offline
powerpc/sstep: mullw should calculate a 64 bit signed result
powerpc/sstep: Fix issues with mcrf
powerpc/sstep: Fix issues with set_cr0()
powerpc/tm: Flush TM only if CPU has TM feature
powerpc/sysrq: Fix oops whem ppmu is not registered
powerpc/configs: Update for CONFIG_SND changes
powerpc/e6500: Update machine check for L1D cache err
Pull MIPS fixes from Ralf Baechle:
- Fix a build error on MSP71xx which used to rely on somehow magically
<asm/setup.h> being pulled in which no longer happens.
- Fix the __write_64bit_c0_split inline assembler where there was the
theoretical possibility of GCC interpret the constraints such that
bad code could result.
- A __init was causing section mismatch errors on Alchemy. Just to be
on the safe side, Manuel's patch does away with all of them.
- Fix perf event init.
* '4.14-fixes' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: PCI: fix pcibios_map_irq section mismatch
MIPS: Fix input modify in __write_64bit_c0_split()
MIPS: MSP71xx: Include asm/setup.h
MIPS: Fix perf event init
Pull s390 fixes from Martin Schwidefsky:
- A couple of bug fixes: memory management, perf, cio, dasd and
scm_blk.
- A larger change in regard to the CPU topology to improve performance
for systems running under z/VM or KVM.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/topology: enable / disable topology dynamically
s390/topology: alternative topology for topology-less machines
s390/mm: fix write access check in gup_huge_pmd()
s390/mm: make pmdp_invalidate() do invalidation only
s390/cio: recover from bad paths
s390/scm_blk: consistently use blk_status_t as error type
s390/dasd: fix race during dasd initialization
s390/perf: fix bug when creating per-thread event
- Support direct --user-regs arguments in 'perf record', previously the
only way to sample PERF_SAMPLE_REGS_USER was implicitly selecting it
when recording callchains (Andi Kleen)
- Support showing sampled user regs in 'perf script' (Andi Kleen)
- Introduce the concept of weak groups in 'perf stat': try to set up a
group, but if it's not schedulable fallback to not using a group. That
gives us the best of both worlds: groups if they work, but still a
usable fallback if they don't. E.g: (Andi Kleen)
% perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}:W' -a sleep 1
125,366,055 branches (80.02%)
9,208,402 branch-misses # 7.35% of all branches (80.01%)
24,560,249 l1d.replacement (80.00%)
43,174,971 l2_lines_in.all (80.05%)
31,891,457 l2_rqsts.all_code_rd (79.92%)
- Support metrics in 'stat' and 'list'. A metric is a formula that
uses multiple events to compute a higher level result (e.g. IPC). (Andi Kleen)
- Add Intel processors vendor event metrics JSON files (Andi Kleen)
- Add 'pid' and 'tid' options to 'perf sched timehist' (David Ahern)
- Generate 'behavior' string table from kernel headers, helps getting
new parameters when synchronizing kernel headers, like MADV_WIPEONFORK
and MADV_KEEPONFORK, that are now beautied (Arnaldo Carvalho de Melo)
- Improve TUI progress bar by showing how many bytes from a total were
processed (Jiri Olsa)
- Use scandir() to replace readdir(), prep work to have the synthesizing
of PERF_RECORD_ entries for existing threads be multithreaded, making
'perf top' bearable on high core count systems such as Intel's Knights
Landing/Mill (Kan Liang)
- Allow creating a ~/.perfconfig file when setting a variable to its
default value, previously it would bail out and not write such a
file (Taeung Song)
- Introduce wrapper for allowing purely single threaded apps to avoid
the costs of locking (Arnaldo Carvalho de Melo)
- Introduce hashtable to reduce the cost of thread lookup
- Fix build C++ build wrt poison.h using void pointer arithmetic,
affects only the embedded clang/llvm case, that is disabled by
default (Arnaldo Carvalho de Melo)
- Fix leaking rec_argv in error cases (Martin Kepplinger)
- Remove Intel CQM perf test, that infrastructure was nuked (Xiaochen Shen)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo-4.15-20170922' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
- Support direct --user-regs arguments in 'perf record', previously the
only way to sample PERF_SAMPLE_REGS_USER was implicitly selecting it
when recording callchains (Andi Kleen)
- Support showing sampled user regs in 'perf script' (Andi Kleen)
- Introduce the concept of weak groups in 'perf stat': try to set up a
group, but if it's not schedulable fallback to not using a group. That
gives us the best of both worlds: groups if they work, but still a
usable fallback if they don't. E.g: (Andi Kleen)
% perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}:W' -a sleep 1
125,366,055 branches (80.02%)
9,208,402 branch-misses # 7.35% of all branches (80.01%)
24,560,249 l1d.replacement (80.00%)
43,174,971 l2_lines_in.all (80.05%)
31,891,457 l2_rqsts.all_code_rd (79.92%)
- Support metrics in 'stat' and 'list'. A metric is a formula that
uses multiple events to compute a higher level result (e.g. IPC). (Andi Kleen)
- Add Intel processors vendor event metrics JSON files (Andi Kleen)
- Add 'pid' and 'tid' options to 'perf sched timehist' (David Ahern)
- Generate 'behavior' string table from kernel headers, helps getting
new parameters when synchronizing kernel headers, like MADV_WIPEONFORK
and MADV_KEEPONFORK, that are now beautied (Arnaldo Carvalho de Melo)
- Improve TUI progress bar by showing how many bytes from a total were
processed (Jiri Olsa)
- Use scandir() to replace readdir(), prep work to have the synthesizing
of PERF_RECORD_ entries for existing threads be multithreaded, making
'perf top' bearable on high core count systems such as Intel's Knights
Landing/Mill (Kan Liang)
- Allow creating a ~/.perfconfig file when setting a variable to its
default value, previously it would bail out and not write such a
file (Taeung Song)
- Introduce wrapper for allowing purely single threaded apps to avoid
the costs of locking (Arnaldo Carvalho de Melo)
- Introduce hashtable to reduce the cost of thread lookup
- Fix build C++ build wrt poison.h using void pointer arithmetic,
affects only the embedded clang/llvm case, that is disabled by
default (Arnaldo Carvalho de Melo)
- Fix leaking rec_argv in error cases (Martin Kepplinger)
- Remove Intel CQM perf test, that infrastructure was nuked (Xiaochen Shen)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Free memory region, if arm_pmu_acpi_probe is not successful.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
of_pci_iommu_init() tries to be clever and stop its alias walk at the
device represented by master_np, in case of weird PCI topologies where
the bridge to the IOMMU and the rest of the system is not at the root.
It turns out this is a bit short-sighted, since there are plenty of
other callers of pci_for_each_dma_alias() which would also need the same
behaviour in that situation, and the only platform so far with such a
topology (Cavium ThunderX2) already solves it more generally via a PCI
quirk. As this check is effectively redundant, and returning a boolean
value as an int is a bit broken anyway, let's just get rid of it.
Reported-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Fixes: d87beb7492 ("iommu/of: Handle PCI aliases properly")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Some Intel host controllers (e.g. CNP) use an ACPI device-specific method
to ensure correct voltage switching. Fix voltage switch for those, by
adding a call to the DSM.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Some change for v4.14 broke the debug output for TMIO. But since it was
not helpful to me and too noisy for my taste anyhow, let's just remove
it instead of fixing it. We'll find something better if we'd need it...
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
In linux-4.13, Wei worked hard to convert dst to a traditional
refcounted model, removing GC.
We now want to make sure a dst refcount can not transition from 0 back
to 1.
The problem here is that input path attached a not refcounted dst to an
skb. Then later, because packet is forwarded and hits skb_dst_force()
before exiting RCU section, we might try to take a refcount on one dst
that is about to be freed, if another cpu saw 1 -> 0 transition in
dst_release() and queued the dst for freeing after one RCU grace period.
Lets unify skb_dst_force() and skb_dst_force_safe(), since we should
always perform the complete check against dst refcount, and not assume
it is not zero.
Bugzilla : https://bugzilla.kernel.org/show_bug.cgi?id=197005
[ 989.919496] skb_dst_force+0x32/0x34
[ 989.919498] __dev_queue_xmit+0x1ad/0x482
[ 989.919501] ? eth_header+0x28/0xc6
[ 989.919502] dev_queue_xmit+0xb/0xd
[ 989.919504] neigh_connected_output+0x9b/0xb4
[ 989.919507] ip_finish_output2+0x234/0x294
[ 989.919509] ? ipt_do_table+0x369/0x388
[ 989.919510] ip_finish_output+0x12c/0x13f
[ 989.919512] ip_output+0x53/0x87
[ 989.919513] ip_forward_finish+0x53/0x5a
[ 989.919515] ip_forward+0x2cb/0x3e6
[ 989.919516] ? pskb_trim_rcsum.part.9+0x4b/0x4b
[ 989.919518] ip_rcv_finish+0x2e2/0x321
[ 989.919519] ip_rcv+0x26f/0x2eb
[ 989.919522] ? vlan_do_receive+0x4f/0x289
[ 989.919523] __netif_receive_skb_core+0x467/0x50b
[ 989.919526] ? tcp_gro_receive+0x239/0x239
[ 989.919529] ? inet_gro_receive+0x226/0x238
[ 989.919530] __netif_receive_skb+0x4d/0x5f
[ 989.919532] netif_receive_skb_internal+0x5c/0xaf
[ 989.919533] napi_gro_receive+0x45/0x81
[ 989.919536] ixgbe_poll+0xc8a/0xf09
[ 989.919539] ? kmem_cache_free_bulk+0x1b6/0x1f7
[ 989.919540] net_rx_action+0xf4/0x266
[ 989.919543] __do_softirq+0xa8/0x19d
[ 989.919545] irq_exit+0x5d/0x6b
[ 989.919546] do_IRQ+0x9c/0xb5
[ 989.919548] common_interrupt+0x93/0x93
[ 989.919548] </IRQ>
Similarly dst_clone() can use dst_hold() helper to have additional
debugging, as a follow up to commit 44ebe79149 ("net: add debug
atomic_inc_not_zero() in dst_hold()")
In net-next we will convert dst atomic_t to refcount_t for peace of
mind.
Fixes: a4c2fd7f78 ("net: remove DST_NOCACHE flag")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wei Wang <weiwan@google.com>
Reported-by: Paweł Staszewski <pstaszewski@itcare.pl>
Bisected-by: Paweł Staszewski <pstaszewski@itcare.pl>
Acked-by: Wei Wang <weiwan@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Given NR_IRQS is 2048 on sparc64, and even 32784 on alpha, 3 digits is
not enough to represent interrupt numbers on all architectures. Hence
PHY interrupt numbers may be truncated during printing.
Increase the buffer size from 4 to 8 bytes to fix this.
Fixes: 5e369aefdc ("net: stmmac: Delete dead code for MDIO registration")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull libnvdimm fixes from Dan Williams:
"A crash fix and corresponding regression test enabling for the crash
scenario. The unit test for this crash is available in ndctl-v58.2.
This branch has received a build success notification from the
0day-kbuild robot over 148 configs. The fix is tagged for -stable /
backport to 4.13"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, namespace: fix btt claim class crash
tools/testing/nvdimm: disable labels for nfit_test.1
The clock-cell size is 1 on stm32h7 plaform.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Fixes: 3e4d618b07 ("clk: stm32h7: Add stm32h743 clock driver")
Signed-off-by: Rob Herring <robh@kernel.org>
Normally, when input device supporting force feedback effects is being
destroyed, we try to "flush" currently playing effects, so that the
physical device does not continue vibrating (or executing other effects).
Unfortunately this does not work well for uinput as flushing of the effects
deadlocks with the destroy action:
- if device is being destroyed because the file descriptor is being closed,
then there is noone to even service FF requests;
- if device is being destroyed because userspace sent UI_DEV_DESTROY,
while theoretically it could be possible to service FF requests,
userspace is unlikely to do so (they'd need to make sure FF handling
happens on a separate thread) even if kernel solves the issue with FF
ioctls deadlocking with UI_DEV_DESTROY ioctl on udev->mutex.
To avoid lockups like the one below, let's install a custom input device
flush handler, and avoid trying to flush force feedback effects when we
destroying the device, and instead rely on uinput to shut off the device
properly.
NMI watchdog: Watchdog detected hard LOCKUP on cpu 3
...
<<EOE>> [<ffffffff817a0307>] _raw_spin_lock_irqsave+0x37/0x40
[<ffffffff810e633d>] complete+0x1d/0x50
[<ffffffffa00ba08c>] uinput_request_done+0x3c/0x40 [uinput]
[<ffffffffa00ba587>] uinput_request_submit.part.7+0x47/0xb0 [uinput]
[<ffffffffa00bb62b>] uinput_dev_erase_effect+0x5b/0x76 [uinput]
[<ffffffff815d91ad>] erase_effect+0xad/0xf0
[<ffffffff815d929d>] flush_effects+0x4d/0x90
[<ffffffff815d4cc0>] input_flush_device+0x40/0x60
[<ffffffff815daf1c>] evdev_cleanup+0xac/0xc0
[<ffffffff815daf5b>] evdev_disconnect+0x2b/0x60
[<ffffffff815d74ac>] __input_unregister_device+0xac/0x150
[<ffffffff815d75f7>] input_unregister_device+0x47/0x70
[<ffffffffa00bac45>] uinput_destroy_device+0xb5/0xc0 [uinput]
[<ffffffffa00bb2de>] uinput_ioctl_handler.isra.9+0x65e/0x740 [uinput]
[<ffffffff811231ab>] ? do_futex+0x12b/0xad0
[<ffffffffa00bb3f8>] uinput_ioctl+0x18/0x20 [uinput]
[<ffffffff81241248>] do_vfs_ioctl+0x298/0x480
[<ffffffff81337553>] ? security_file_ioctl+0x43/0x60
[<ffffffff812414a9>] SyS_ioctl+0x79/0x90
[<ffffffff817a04ee>] entry_SYSCALL_64_fastpath+0x12/0x71
Reported-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Reported-by: Clément VUCHENER <clement.vuchener@gmail.com>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=193741
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Ursula Braun says:
====================
net/smc: bug fixes 2017-09-20
here is a collection of small smc-patches built for net fixing
smc problems in different areas.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Usually socket closing is delayed if there is still data available in
the send buffer to be transmitted. If a process is killed, the delay
should be avoided.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The number of outstanding work requests is limited. If all work
requests are in use, tx processing is postponed to another scheduling
of the tx worker. Switch to a delayed worker to have a gap for tx
completion queue events before the next retry.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
An out-of-sync condition can just be detected by the client.
If the server receives a CLC DECLINE message indicating an out-of-sync
condition for the link groups, the server must clean up the out-of-sync
link group.
There is no need for an extra third parameter in smc_clc_send_decline().
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Client link group creation always follows the server linkgroup creation.
If peer creates a new server link group, client has to create a new
client link group. If peer reuses a server link group for a new
connection, client has to reuse its client link group as well. This
patch introduces a longer delay for client link group removal to make
sure this link group still exists, once the peer decides to reuse a
server link group. This avoids out-of-sync conditions for link groups.
If already scheduled, modify the delay.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The solicited flag is meaningful for the receive completion queue.
Ask for next work completion of any type on the send queue.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
smc_pnet_fill_entry() uses dev_get_by_name() adding a refcount to ndev.
The following smc_pnet_enter() has to reduce the refcount if the entry
to be added exists already in the pnet table.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
smc_netinfo_by_tcpsk() looks up the routing cache. Such a lookup requires
protection by an RCU read lock.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The SMC receive function currently lacks a timeout check under the
condition that no data were received and no data are available. This
patch adds such a check.
Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the infiniband part, SMC currently uses get_netdev which calls
dev_hold on the returned net device. However, the SMC code never calls
dev_put on that net device resulting in a wrong reference count.
This patch adds a dev_put after the usage of the net device to fix the
issue.
Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make sure (of/i2c/platform)_device_id tables are NULL terminated.
Found by coccinelle spatch "misc/of_table.cocci"
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nisar Sayed says:
====================
lan78xx: This series of patches are for lan78xx driver.
This series of patches are for lan78xx driver.
These patches fixes potential issues associated with lan78xx driver.
v5
- Updated changes as per comments
v4
- Updated changes to handle return values as per comments
- Updated EEPROM write handling as per comments
v3
- Updated chagnes as per comments
v2
- Added patch version information
- Added fixes tag
- Updated patch description
- Updated chagnes as per comments
v1
- Splitted patches as per comments
- Dropped "fixed_phy device support" and "Fix for system suspend" changes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use default value of auto duplex and auto speed values loaded
from EEPROM/OTP after reset. The LAN78xx allows platform
configurations to be loaded from EEPROM/OTP.
Ex: When external phy is connected, the MAC can be configured to
have correct auto speed, auto duplex, auto polarity configured
from the EEPROM/OTP.
Fixes: 55d7de9de6 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Allow EEPROM write for less than MAX_EEPROM_SIZE
Fixes: 55d7de9de6 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix for eeprom read/write when device auto suspend
Fixes: 55d7de9de6 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: Bring back transceiver type for PHYLIB
With the introduction of the xLINKSETTINGS ethtool APIs, the transceiver type
was deprecated, but in that process we lost some useful information that PHYLIB
was consistently reporting about internal vs. external PHYs.
This brings back transceiver as a read-only field that is only consumed in the
legacy path where ETHTOOL_GET is called but the underlying drivers implement the
new style klink_settings API.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
With commit 2d55173e71 ("phy: add generic function to support
ksetting support"), we lost the ability to report the transceiver type
like we used to. Now that we have added back the transceiver type to
ethtool_link_settings, we can report it back like we used to and have no
loss of information.
Fixes: 3f1ac7a700 ("net: ethtool: add new ETHTOOL_xLINKSETTINGS API")
Fixes: 2d55173e71 ("phy: add generic function to support ksetting support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 3f1ac7a700 ("net: ethtool: add new ETHTOOL_xLINKSETTINGS API")
deprecated the ethtool_cmd::transceiver field, which was fine in
premise, except that the PHY library was actually using it to report the
type of transceiver: internal or external.
Use the first word of the reserved field to put this __u8 transceiver
field back in. It is made read-only, and we don't expect the
ETHTOOL_xLINKSETTINGS API to be doing anything with this anyway, so this
is mostly for the legacy path where we do:
ethtool_get_settings()
-> dev->ethtool_ops->get_link_ksettings()
-> convert_link_ksettings_to_legacy_settings()
to have no information loss compared to the legacy get_settings API.
Fixes: 3f1ac7a700 ("net: ethtool: add new ETHTOOL_xLINKSETTINGS API")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The EMAC has the option of sending only a single pause frame when
flow control is enabled and the RX queue is full. Although sending
only one pause frame has little value, this would allow admins to
enable automatic flow control without having to worry about the EMAC
flooding nearby switches with pause frames if the kernel hangs.
The option is enabled by using the single-pause-mode private flag.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If MTU is changed the host would reject the send buffer change.
This problem is result of recent change to allow changing send
buffer size.
Every time we change the MTU, we store the previous net_device section
count before destroying the buffer, but we don’t store the previous
section size. When we reinitialize the buffer, its size is calculated
by multiplying the previous count and previous size. Since we
continuously increase the MTU, the host returns us a decreasing count
value while the section size is reinitialized to 1728 bytes every
time.
This eventually leads to a condition where the calculated buf_size is
so small that the host rejects it.
Fixes: 8b5327975a ("netvsc: allow controlling send/recv buffer size")
Signed-off-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: c15ab236d6 ("net/sched: Change cls_flower to use IDR")
Cc: Chris Mi <chrism@mellanox.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If real-time or fair-share curves are enabled in hfsc_change_class()
class isn't inserted into rb-trees yet. Thus init_ed() and init_vf()
must be called in place of update_ed() and update_vf().
Remove isn't required because for now curves cannot be disabled.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
SKB stored in qdisc->gso_skb also counted into backlog.
Some qdiscs don't reset backlog to zero in ->reset(),
for example sfq just dequeue and free all queued skb.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 2ccccf5fb4 ("net_sched: update hierarchical backlog too")
Signed-off-by: David S. Miller <davem@davemloft.net>
Andi reported a performance drop in single threaded perf tools such as
'perf script' due to the growing number of locks being put in place to
allow for multithreaded tools, so wrap the POSIX threads rwlock routines
with the names used for such kinds of locks in the Linux kernel and then
allow for tools to ask for those locks to be used or not.
I.e. a tool may have a multithreaded phase and then switch to single
threaded, like the upcoming patches for the synthesizing of
PERF_RECORD_{FORK,MMAP,etc} for pre-existing processes to then switch to
single threaded mode in 'perf top'.
The init routines will not be conditional, this way starting as single
threaded to then move to multi threaded mode should be possible.
Reported-by: Andi Kleen <ak@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170404161739.GH12903@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LIST_POISON[12] are used to initialize list_head and hlist_node
pointers, and do void pointer arithmetic, which C++ doesn't like, so, to
avoid drifting from the kernel by introducing some HLIST_POISON to do
away with void pointer math, just make those poisoned pointers be NULL
when building it with a C++ compiler.
Noticed with:
$ make LLVM_CONFIG=/usr/bin/llvm-config-3.9 LIBCLANGLLVM=1
CXX util/c++/clang.o
CXX util/c++/clang-test.o
In file included from /home/lizj/linux/tools/include/linux/list.h:5:0,
from /home/lizj/linux/tools/perf/util/namespaces.h:13,
from /home/lizj/linux/tools/perf/util/util.h:15,
from /home/lizj/linux/tools/perf/util/util-cxx.h:20,
from util/c++/clang-c.h:5,
from util/c++/clang-test.cpp:2:
/home/lizj/linux/tools/include/linux/list.h: In function ‘void list_del(list_head*)’:
/home/lizj/linux/tools/include/linux/poison.h:14:31: error: pointer of type ‘void *’ used in arithmetic [-Werror=pointer-arith]
# define POISON_POINTER_DELTA 0
^
/home/lizj/linux/tools/include/linux/poison.h:22:41: note: in expansion of macro ‘POISON_POINTER_DELTA’
#define LIST_POISON1 ((void *) 0x100 + POISON_POINTER_DELTA)
^
/home/lizj/linux/tools/include/linux/list.h:107:16: note: in expansion of macro ‘LIST_POISON1’
entry->next = LIST_POISON1;
^
In file included from /home/lizj/linux/tools/perf/util/namespaces.h:13:0,
from /home/lizj/linux/tools/perf/util/util.h:15,
from /home/lizj/linux/tools/perf/util/util-cxx.h:20,
from util/c++/clang-c.h:5,
from util/c++/clang-test.cpp:2:
/home/lizj/linux/tools/include/linux/list.h:107:14: error: invalid conversion from ‘void*’ to ‘list_head*’ [-fpermissive]
Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Philip Li <philip.li@intel.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-m5ei2o0mjshucbr28baf5lqz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Now that I'm switching the container builds from using a local volume
pointing to the kernel repository with the perf sources, instead getting
a detached tarball to be able to use a container cluster, some places
broke because I forgot to put some of the required files in
tools/perf/MANIFEST, namely some bitsperlong.h files.
So, to fix it do the same as for tools/build/ and pack the whole
tools/arch/ directory.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-wmenpjfjsobwdnfde30qqncj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This is one more case where the way that syscall parameter values are
defined in kernel headers are easy to parse using a shell script that
will then generate the string table that gets used by the madvise
'behaviour' argument beautifier.
This way as soon as the header syncronization mechanism in perf's build
system detects a change in a copy of a kernel ABI header and that file
is syncronized, we get 'perf trace' updated automagically.
So, when we syncronize this:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
We'll get these:
#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-dolb0ghds4ui7wc1npgkchvc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Intel CQM perf test is obsolete for perf PMU code has been removed in
commit c39a0e2c88 ("x86/perf/cqm: Wipe out perf based cqm").
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Pei P Jia <pei.p.jia@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Link: http://lkml.kernel.org/r/1505797057-16300-1-git-send-email-xiaochen.shen@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The -M metric group parser threw away the events of earlier groups when
multiple groups were specified. Fix this here by not overwriting the
string incorrectly.
Now this works correctly:
% perf stat -M Summary,SMT --metric-only -a sleep 1
Performance counter stats for 'system wide':
Instructions CPI CLKS CPU_Utilization GFLOPs SMT_2T_Utilization SMT_2T_Utilization Kernel_Utilization CoreIPC CORE_CLKS
900907376.0 2.7 2398954144.0 0.1 0.0 0.2 0.2 0.1 0.4 2080822855.5
while previously it would only show the SMT metrics.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170914205735.18431-1-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- remove firmware install from rpm-pkg / deb-pkg
- fix mismatch between release number and UTS_VERSION for rpm-pkg
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Merge tag 'kbuild-fixes-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
"Here are some early Kbuild fixes.
The in-kernel firmware was removed during the previous merge window.
Since then, some bug reports of broken rpm building are flying in ML.
We need to fix it now.
Summary:
- remove firmware install from rpm-pkg / deb-pkg
- fix mismatch between release number and UTS_VERSION for rpm-pkg"
* tag 'kbuild-fixes-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: rpm-pkg: fix version number handling
kbuild: deb-pkg: remove firmware package support
kbuild: rpm-pkg: delete firmware_install to fix build error
Pull misc fixes from Al Viro:
"A couple of regression fixes, one for this merge window, one for the
previous cycle"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ipc/shm: Fix order of parameters when calling copy_compat_shmid_to_user
iov_iter: fix page_copy_sane for compound pages
Steve Wise