Commit Graph

813824 Commits

Author SHA1 Message Date
Linus Torvalds
10f4902173 Two more tracing fixes
- Have kprobes not use copy_from_user() to access kernel addresses,
    because kprobes can legitimately poke at bad kernel memory, which
    will fault. Copy from user code should never fault in kernel space.
    Using probe_mem_read() can handle kernel address space faulting.
 
  - Put back the entries counter in the tracing output that was accidentally
    removed.
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Merge tag 'trace-v5.0-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Two more tracing fixes

   - Have kprobes not use copy_from_user() to access kernel addresses,
     because kprobes can legitimately poke at bad kernel memory, which
     will fault. Copy from user code should never fault in kernel space.
     Using probe_mem_read() can handle kernel address space faulting.

   - Put back the entries counter in the tracing output that was
     accidentally removed"

* tag 'trace-v5.0-rc4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix number of entries in trace header
  kprobe: Do not use uaccess functions to access kernel memory that can fault
2019-02-18 09:40:16 -08:00
Rayagonda Kokatanur
d7bf31a0f8 mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
RING_CONTROL reg was not written due to wrong address, hence all
the subsequent ring flush was timing out.

Fixes: a371c10ea4 ("mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush sequence")

Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-02-18 10:40:58 -06:00
Thierry Reding
4f0557795e mailbox: Export mbox_flush()
The mbox_flush() function can be used by drivers that are built as
modules, so the function needs to be exported.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2019-02-18 10:39:17 -06:00
Linus Torvalds
a3b22b9f11 Linux 5.0-rc7 2019-02-17 18:46:40 -08:00
Wei Yongjun
e511f17b1f net: hns3: make function hclge_set_all_vf_rst() static
Fixes the following sparse warning:

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:2431:5: warning:
 symbol 'hclge_set_all_vf_rst' was not declared. Should it be static?

Fixes: aa5c4f175b ("net: hns3: add reset handling for VF when doing PF reset")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:55:11 -08:00
YueHaibing
58ecf2688c ptr_ring: remove duplicated include from ptr_ring.h
Remove duplicated include.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:53:01 -08:00
Wei Yongjun
3edaded896 net: sgi: use GFP_ATOMIC under spin lock
The function meth_init_tx_ring() is called from meth_tx_timeout(),
in which spin_lock is held, so we should use GFP_ATOMIC instead.

Fixes: 8d4c28fbc2 ("meth: pass struct device to DMA API functions")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:51:46 -08:00
David S. Miller
254a1a2b2c Merge branch 'netdev-page_frag_alloc-fixes'
Alexander Duyck says:

====================
Address recent issues found in netdev page_frag_alloc usage

This patch set addresses a couple of issues that I had pointed out to Jann
Horn in response to a recent patch submission.

The first issue is that I wanted to avoid the need to read/modify/write the
size value in order to generate the value for pagecnt_bias. Instead we can
just use a fixed constant which reduces the need for memory read operations
and the overall number of instructions to update the pagecnt bias values.

The other, and more important issue is, that apparently we were letting tun
access the napi_alloc_cache indirectly through netdev_alloc_frag and as a
result letting it create unaligned accesses via unaligned allocations. In
order to prevent this I have added a call to SKB_DATA_ALIGN for the fragsz
field so that we will keep the offset in the napi_alloc_cache
SMP_CACHE_BYTES aligned.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
Alexander Duyck
3bed3cc415 net: Do not allocate page fragments that are not skb aligned
This patch addresses the fact that there are drivers, specifically tun,
that will call into the network page fragment allocators with buffer sizes
that are not cache aligned. Doing this could result in data alignment
and DMA performance issues as these fragment pools are also shared with the
skb allocator and any other devices that will use napi_alloc_frags or
netdev_alloc_frags.

Fixes: ffde7328a3 ("net: Split netdev_alloc_frag into __alloc_page_frag and add __napi_alloc_frag")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
Alexander Duyck
8644772637 mm: Use fixed constant in page_frag_alloc instead of size + 1
This patch replaces the size + 1 value introduced with the recent fix for 1
byte allocs with a constant value.

The idea here is to reduce code overhead as the previous logic would have
to read size into a register, then increment it, and write it back to
whatever field was being used. By using a constant we can avoid those
memory reads and arithmetic operations in favor of just encoding the
maximum value into the operation itself.

Fixes: 2c2ade8174 ("mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs")
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:48:43 -08:00
David S. Miller
e09c6a4ec1 Merge branch 'tcp-fix-possible-crash-in-tcp_v4_err'
Eric Dumazet says:

====================
tcp: fix possible crash in tcp_v4_err()

soukjin bae reported a crash in tcp_v4_err() that we
root caused to a missing initialization.

Second patch adds a sanity check in tcp_v4_err() to avoid
future potential problems. Ignoring an ICMP message
is probably better than crashing a machine.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:59 -08:00
Eric Dumazet
2c4cc97123 tcp: tcp_v4_err() should be more careful
ICMP handlers are not very often stressed, we should
make them more resilient to bugs that might surface in
the future.

If there is no packet in retransmit queue, we should
avoid a NULL deref.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: soukjin bae <soukjin.bae@samsung.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:58 -08:00
Eric Dumazet
04c03114be tcp: clear icsk_backoff in tcp_write_queue_purge()
soukjin bae reported a crash in tcp_v4_err() handling
ICMP_DEST_UNREACH after tcp_write_queue_head(sk)
returned a NULL pointer.

Current logic should have prevented this :

  if (seq != tp->snd_una  || !icsk->icsk_retransmits ||
      !icsk->icsk_backoff || fastopen)
      break;

Problem is the write queue might have been purged
and icsk_backoff has not been cleared.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: soukjin bae <soukjin.bae@samsung.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:46:58 -08:00
Alexey Khoroshilov
e928b5d6b7 net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
If mv643xx_eth_shared_of_probe() fails, mv643xx_eth_shared_probe()
leaves clk enabled.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:44:26 -08:00
Beniamino Galvani
97dc47a130 qmi_wwan: apply SET_DTR quirk to Sierra WP7607
The 1199:68C0 USB ID is reused by Sierra WP7607 which requires the DTR
quirk to be detected. Apply QMI_QUIRK_SET_DTR unconditionally as
already done for other IDs shared between different devices.

Signed-off-by: Beniamino Galvani <bgalvani@redhat.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:40:27 -08:00
Ivan Vecera
aaeb1dea51 net: sched: sch_api: set an error msg when qdisc_alloc_handle() fails
This patch sets an error message in extack when the number of qdisc
handles exceeds the maximum. Also the error-code ENOSPC is more
appropriate than ENOMEM in this situation.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reported-by: Li Shuang <shuali@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:39:08 -08:00
Alexandre Torgue
4012e7d09d net: stmmac: handle endianness in dwmac4_get_timestamp
GMAC IP is little-endian and used on several kind of CPU (big or little
endian). Main callbacks functions of the stmmac drivers take care about
it. It was not the case for dwmac4_get_timestamp function.

Fixes: ba1ffd74df ("stmmac: fix PTP support for GMAC4")
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:37:40 -08:00
Maxime Chevallier
5642563883 net: phy: marvell10g: Don't explicitly set Pause and Asym_Pause
The PHY core expects PHY drivers not to set Pause and Asym_Pause bits,
unless the driver only wants to specify one of them due to HW
limitation. In the case of the Marvell10g driver, we don't need to set
them.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:33:53 -08:00
YueHaibing
a0bc653b1d net: dsa: bcm_sf2: Remove set but not used variables 'v6_spec, v6_m_spec'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/dsa/bcm_sf2_cfp.c: In function 'bcm_sf2_cfp_ipv6_rule_set':
drivers/net/dsa/bcm_sf2_cfp.c:606:40: warning:
 variable 'v6_m_spec' set but not used [-Wunused-but-set-variable]
drivers/net/dsa/bcm_sf2_cfp.c:606:30: warning:
 variable 'v6_spec' set but not used [-Wunused-but-set-variable]

It not used any more after commit e4f7ef54cb ("dsa: bcm_sf2: use flow_rule
infrastructure")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:31:47 -08:00
Petr Vorel
31a1b8d528 doc: Mention MSG_ZEROCOPY implementation for UDP
MSG_ZEROCOPY implementation for UDP was merged in v5.0,
6e360f7331 ("Merge branch 'udp-msg_zerocopy'").

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:30:02 -08:00
Pieter Jansen van Vuuren
0496743b20 nfp: flower: fix masks for tcp and ip flags fields
Check mask fields of tcp and ip flags when setting the corresponding mask
flag used in hardware.

Fixes: 8f2566225a ("flow_offload: add flow_rule and flow_match")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:28:50 -08:00
David S. Miller
eaec2efbe4 Merge branch 'devlink-add-the-ability-to-update-device-flash'
Jakub Kicinski says:

====================
devlink: add the ability to update device flash

This series is the second step to allow trouble shooting and recovering
devices in bad state without the use of netdevs as handles.  We can
already query FW versions over devlink, now we add the ability to update
the FW.  This will allow drivers to implement some from of "limp-mode"
where the device can't really be used for networking and hence has no
netdev, but we can interrogate it over devlink and fix the broken FW.

Small but nice advantage of devlink is that it only holds the devlink
instance lock during flashing, unlike ethtool which holds rtnl_lock().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:27:39 -08:00
Jakub Kicinski
5c5696f3df nfp: devlink: allow flashing the device via devlink
Devlink now allows updating device flash.  Implement this
callback.

Compared to ethtool update we no longer have to release
the networking locks - devlink doesn't take them.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:27:38 -08:00
Jakub Kicinski
4eceba1720 ethtool: add compat for flash update
If driver does not support ethtool flash update operation
call into devlink.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:27:38 -08:00
Jakub Kicinski
76726ccb7f devlink: add flash update command
Add devlink flash update command. Advanced NICs have firmware
stored in flash and often cryptographically secured. Updating
that flash is handled by management firmware. Ethtool has a
flash update command which served us well, however, it has two
shortcomings:
 - it takes rtnl_lock unnecessarily - really flash update has
   nothing to do with networking, so using a networking device
   as a handle is suboptimal, which leads us to the second one:
 - it requires a functioning netdev - in case device enters an
   error state and can't spawn a netdev (e.g. communication
   with the device fails) there is no netdev to use as a handle
   for flashing.

Devlink already has the ability to report the firmware versions,
now with the ability to update the firmware/flash we will be
able to recover devices in bad state.

To enable updates of sub-components of the FW allow passing
component name.  This name should correspond to one of the
versions reported in devlink info.

v1: - replace target id with component name (Jiri).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:27:38 -08:00
David S. Miller
8e31c47424 Merge branch 'net-phy-improve-and-use-phy_resolve_aneg_linkmode'
Heiner Kallweit says:

====================
net: phy: improve and use phy_resolve_aneg_linkmode

Improve phy_resolve_aneg_linkmode and use it in genphy_read_status.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:21:39 -08:00
Heiner Kallweit
5502b218e0 net: phy: use phy_resolve_aneg_linkmode in genphy_read_status
Now that we have phy_resolve_aneg_linkmode() we can make
genphy_read_status() much simpler.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:21:38 -08:00
Heiner Kallweit
a2703de709 net: phy: improve phy_resolve_aneg_linkmode
We have the settings array of modes which is sorted based on aneg
priority. Instead of checking each mode manually let's simply iterate
over the sorted settings.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 15:21:38 -08:00
Vlad Buslov
8b58d12f4a net: sched: cgroup: verify that filter is not NULL during walk
Check that filter is not NULL before passing it to tcf_walker->fn()
callback in cls_cgroup_walk(). This can happen when cls_cgroup_change()
failed to set first filter.

Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 13:26:57 -08:00
Vlad Buslov
d66022cd16 net: sched: matchall: verify that filter is not NULL in mall_walk()
Check that filter is not NULL before passing it to tcf_walker->fn()
callback. This can happen when mall_change() failed to offload filter to
hardware.

Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Reported-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 13:26:39 -08:00
Vlad Buslov
3027ff41f6 net: sched: route: don't set arg->stop in route4_walk() when empty
Some classifiers set arg->stop in their implementation of tp->walk() API
when empty. Most of classifiers do not adhere to that convention. Do not
set arg->stop in route4_walk() to unify tp->walk() behavior among
classifier implementations.

Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 13:24:39 -08:00
Vlad Buslov
31a9984876 net: sched: fw: don't set arg->stop in fw_walk() when empty
Some classifiers set arg->stop in their implementation of tp->walk() API
when empty. Most of classifiers do not adhere to that convention. Do not
set arg->stop in fw_walk() to unify tp->walk() behavior among classifier
implementations.

Fixes: ed76f5edcc ("net: sched: protect filter_chain list with filter_chain_lock mutex")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 13:24:18 -08:00
Jann Horn
1eb00162f8 net: caif: use skb helpers instead of open-coding them
Use existing skb_put_data() and skb_trim() instead of open-coding them,
with the skb_put_data() first so that logically, `skb` still contains the
data to be copied in its data..tail area when skb_put_data() reads it.
This change on its own is a cleanup, and it is also necessary for potential
future integration of skbuffs with things like KASAN.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 11:01:17 -08:00
Vadim Pasternak
6a79507cfe mlxsw: core: Extend thermal module with per QSFP module thermal zones
Add a dedicated thermal zone for each QSFP/SFP module. The current
temperature is obtained from the module's temperature sensor and the
trip points are set based on the warning and critical thresholds
read from the module.

A cooling device (fan) is bound to all the thermal zones. The
thermal zone governor is set to user space in order to avoid
collisions between thermal zones.
For example, one thermal zone might want to increase the speed of
the fan, whereas another one would like to decrease it.

Deferring this decision to user space allows the user to the take
the most suitable decision.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:57:49 -08:00
David S. Miller
3c136c542a Merge branch 'neigh-tracepoints'
Roopa Prabhu says:

====================
tracepoints in neighbor subsystem

Roopa Prabhu (2):
  trace: events: add a few neigh tracepoints
  neigh: hook tracepoints in neigh update code
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:33:39 -08:00
Roopa Prabhu
56dd18a49f neigh: hook tracepoints in neigh update code
hook tracepoints at the end of functions that
update a neigh entry. neigh_update gets an additional
tracepoint to trace the update flags and old and new
neigh states.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:33:39 -08:00
Roopa Prabhu
9c03b282ba trace: events: add a few neigh tracepoints
The goal here is to trace neigh state changes covering all possible
neigh update paths. Plus have a specific trace point in neigh_update
to cover flags sent to neigh_update.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:33:39 -08:00
David S. Miller
9e8ccd8957 Merge branch 'net-phy-add-and-use-genphy_c45_an_config_an'
Heiner Kallweit says:

====================
net: phy: add and use genphy_c45_an_config_an

This series adds genphy_c45_an_config_an() and uses it in the
marvell10g diver. In addition patch 4 aligns the aneg configuration
with what is done in genphy_config_aneg().

v2:
- in patch 2 changed function name to genphy_c45_an_config_aneg
- in patch 3 add a comment regarding 1000BaseT vendor registers

v3:
- rebase patch 3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:27:00 -08:00
Heiner Kallweit
3ce2a027ae net: phy: marvell10g: check for newly set aneg
Even if the advertisement registers content didn't change, we may have
just switched to aneg, and therefore have to trigger an aneg restart.
This matches the behavior of genphy_config_aneg().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:26:52 -08:00
Andrew Lunn
3de97f3c63 net: phy: marvell10g: use genphy_c45_an_config_aneg
Use new function genphy_c45_config_aneg() in mv3310_config_aneg().

v2:
- add a comment regarding 1000BaseT vendor registers
v3:
- rebased

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
[hkallweit1@gmail.com: patch splitted]
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:26:52 -08:00
Andrew Lunn
9a5dc8af44 net: phy: add genphy_c45_an_config_aneg
C45 configuration of 10/100 and multi-giga bit auto negotiation
advertisement is standardized. Configuration of 1000Base-T however
appears to be vendor specific. Move the generic code out of the
Marvell driver into the common phy-c45.c file.

v2:
- change function name to genphy_c45_an_config_aneg

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
[hkallweit1@gmail.com: use new helper linkmode_adv_to_mii_10gbt_adv_t and split patch]
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:26:35 -08:00
Heiner Kallweit
744e458aeb net: phy: add helper linkmode_adv_to_mii_10gbt_adv_t
Add a helper linkmode_adv_to_mii_10gbt_adv_t(), similar to
linkmode_adv_to_mii_adv_t.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:26:34 -08:00
Petr Machata
289460404f mlxsw: __mlxsw_sp_port_headroom_set(): Fix a use of local variable
The function-local variable "delay" enters the loop interpreted as delay
in bits. However, inside the loop it gets overwritten by the result of
mlxsw_sp_pg_buf_delay_get(), and thus leaves the loop as quantity in
cells. Thus on second and further loop iterations, the headroom for a
given priority is configured with a wrong size.

Fix by introducing a loop-local variable, delay_cells. Rename thres to
thres_cells for consistency.

Fixes: f417f04da5 ("mlxsw: spectrum: Refactor port buffer configuration")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-17 10:13:46 -08:00
Linus Torvalds
2fee036af0 Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Ingo Molnar:
 "This tree reverts a GICv3 commit (which was broken) and fixes it in
  another way, by adding a memblock build-time entries quirk for ARM64"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm: Revert "Defer persistent reservations until after paging_init()"
  arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve table
2019-02-17 09:22:01 -08:00
Linus Torvalds
8d33316d52 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Three changes:

   - An UV fix/quirk to pull UV BIOS calls into the efi_runtime_lock
     locking regime. (This done by aliasing __efi_uv_runtime_lock to
     efi_runtime_lock, which should make the quirk nature obvious and
     maintain the general policy that the EFI lock (name...) isn't
     exposed to drivers.)

   - Our version of MAGA: Make a.out Great Again.

   - Add a new Intel model name enumerator to an upstream header to help
     reduce dependencies going forward"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
  x86/CPU: Add Icelake model number
  x86/a.out: Clear the dump structure initially
2019-02-17 08:44:38 -08:00
Linus Torvalds
dd6f29da69 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Two fixes on the kernel side: fix an over-eager condition that failed
  larger perf ring-buffer sizes, plus fix crashes in the Intel BTS code
  for a corner case, found by fuzzing"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix impossible ring-buffer sizes warning
  perf/x86: Add check_period PMU callback
2019-02-17 08:38:13 -08:00
Linus Torvalds
c5f1ac5e9a powerpc fixes for 5.0 #5
Just one fix, for pgd/pud_present() which were broken on big endian since v4.20,
 leading to possible data corruption.
 
 Thanks to:
   Aneesh Kumar K.V., Erhard F., Jan Kara.
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Merge tag 'powerpc-5.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "Just one fix, for pgd/pud_present() which were broken on big endian
  since v4.20, leading to possible data corruption.

  Thanks to: Aneesh Kumar K.V., Erhard F., Jan Kara"

* tag 'powerpc-5.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()
2019-02-17 08:36:21 -08:00
Linus Torvalds
0513ebc33e arch/csky patches for 5.0-rc6
Here is some fixup patches for 5.0-rc6:
 
 Guo Ren (5):
       csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry
       csky: Fixup wrong pt_regs size
       csky: coding convention: Use task_stack_page
       csky: Fixup io-range page attribute for mmap("/dev/mem")
       csky: Fixup dead loop in show_stack
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Merge tag 'csky-for-linus-5.0-rc6' of git://github.com/c-sky/csky-linux

Pull arch/csky fixes from Guo Ren:
 "Here are some fixup patches for 5.0-rc6"

* tag 'csky-for-linus-5.0-rc6' of git://github.com/c-sky/csky-linux:
  csky: Fixup dead loop in show_stack
  csky: Fixup io-range page attribute for mmap("/dev/mem")
  csky: coding convention: Use task_stack_page
  csky: Fixup wrong pt_regs size
  csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry
2019-02-17 08:34:10 -08:00
Linus Torvalds
1653c2f2da Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two more driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: bcm2835: Clear current buffer pointers and counts after a transfer
  i2c: cadence: Fix the hold bit setting
2019-02-17 08:32:25 -08:00
Linus Torvalds
b8c82b6a3a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - tweaks to Elan drivers (both PS/2 and I2C) to support new devices.
   Also revert of one of IDs as that device should really be driven by
   i2c-hid + hid-multitouch

 - a few drivers have been switched to set_brightness_blocking() call
   because they either were sleeping the their set_brightness()
   implementation or used workqueue but were not canceling it on unbind.

 - ps2-gpio and matrix_keypad needed to [properly] flush their works to
   avoid potential use-after-free on unbind.

 - other miscellaneous fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
  Input: st-keyscan - fix potential zalloc NULL dereference
  Input: apanel - switch to using brightness_set_blocking()
  Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G"
  Input: qt2160 - switch to using brightness_set_blocking()
  Input: matrix_keypad - use flush_delayed_work()
  Input: ps2-gpio - flush TX work when closing port
  Input: cap11xx - switch to using set_brightness_blocking()
  Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
  Input: bma150 - register input device after setting private data
  Input: pwm-vibra - stop regulator after disabling pwm, not before
  Input: pwm-vibra - prevent unbalanced regulator
  Input: snvs_pwrkey - allow selecting driver for i.MX 7D
2019-02-17 08:30:35 -08:00