Skip to content

cloud-kernel
cloud-kernel

openanolis / cloud-kernel
接近 2 年 前同步成功

通知 170
Star 36
Fork 7
cloud-kernel
cloud-kernel
切换分支/标签
  1. 23 3月, 2017 11 次提交
    • O
      net/mlx5: Add missing entries for set/query rate limit commands · 1f30a86c
      由 Or Gerlitz 提交于 
      The switch cases for the rate limit set and query commands were
missing, which could get us wrong under fw error or driver reset
flow, fix that.

Fixes: 1466cc5b ('net/mlx5: Rate limit tables support')
Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: NHadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1f30a86c
    • D
      Merge tag 'wireless-drivers-for-davem-2017-03-21' of... · bf601fe5
      由 David S. Miller 提交于 
      Merge tag 'wireless-drivers-for-davem-2017-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.11

iwlwifi

* fix a user reported warning in DQA

mwifiex

* fix a potential double free
* fix lost early debug logs
* fix init wakeup warning message from device framework
* add Ganapathi and Xinming as maintainers

ath10k

* fix regression with QCA6174 during resume and firmware crash
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      bf601fe5
    • Y
      tipc: fix nametbl deadlock at tipc_nametbl_unsubscribe · 557d054c
      由 Ying Xue 提交于 
      Until now, tipc_nametbl_unsubscribe() is called at subscriptions
reference count cleanup. Usually the subscriptions cleanup is
called at subscription timeout or at subscription cancel or at
subscriber delete.

We have ignored the possibility of this being called from other
locations, which causes deadlock as we try to grab the
tn->nametbl_lock while holding it already.

   CPU1:                             CPU2:
----------                     ----------------
tipc_nametbl_publish
spin_lock_bh(&tn->nametbl_lock)
tipc_nametbl_insert_publ
tipc_nameseq_insert_publ
tipc_subscrp_report_overlap
tipc_subscrp_get
tipc_subscrp_send_event
                             tipc_close_conn
                             tipc_subscrb_release_cb
                             tipc_subscrb_delete
                             tipc_subscrp_put
tipc_subscrp_put
tipc_subscrp_kref_release
tipc_nametbl_unsubscribe
spin_lock_bh(&tn->nametbl_lock)
<<grab nametbl_lock again>>

   CPU1:                              CPU2:
----------                     ----------------
tipc_nametbl_stop
spin_lock_bh(&tn->nametbl_lock)
tipc_purge_publications
tipc_nameseq_remove_publ
tipc_subscrp_report_overlap
tipc_subscrp_get
tipc_subscrp_send_event
                             tipc_close_conn
                             tipc_subscrb_release_cb
                             tipc_subscrb_delete
                             tipc_subscrp_put
tipc_subscrp_put
tipc_subscrp_kref_release
tipc_nametbl_unsubscribe
spin_lock_bh(&tn->nametbl_lock)
<<grab nametbl_lock again>>

In this commit, we advance the calling of tipc_nametbl_unsubscribe()
from the refcount cleanup to the intended callers.

Fixes: d094c4d5 ("tipc: add subscription refcount to avoid invalid delete")
Reported-by: NJohn Thompson <thompa.atl@gmail.com>
Acked-by: NJon Maloy <jon.maloy@ericsson.com>
Signed-off-by: NYing Xue <ying.xue@windriver.com>
Signed-off-by: NParthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      557d054c
    • X
      sctp: remove useless err from sctp_association_init · 58194778
      由 Xin Long 提交于 
      This patch is to remove the unnecessary temporary variable 'err' from
sctp_association_init.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      58194778
    • X
      sctp: declare struct sctp_stream before using it · 1511949c
      由 Xin Long 提交于 
      sctp_stream_free uses struct sctp_stream as a param, but struct sctp_stream
is defined after it's declaration.

This patch is to declare struct sctp_stream before sctp_stream_free.

Fixes: a8386317 ("sctp: prepare asoc stream for stream reconf")
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1511949c
    • A
      cpsw/netcp: cpts depends on posix_timers · 07fef362
      由 Arnd Bergmann 提交于 
      With posix timers having become optional, we get a build error with
the cpts time sync option of the CPSW driver:

drivers/net/ethernet/ti/cpts.c: In function 'cpts_find_ts':
drivers/net/ethernet/ti/cpts.c:291:23: error: implicit declaration of function 'ptp_classify_raw';did you mean 'ptp_classifier_init'? [-Werror=implicit-function-declaration]

This adds a hard dependency on PTP_CLOCK to avoid the problem, as
building it without PTP support makes no sense anyway.

Fixes: baa73d9e ("posix-timers: Make them configurable")
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NNicolas Pitre <nico@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      07fef362
    • A
      cpsw/netcp: work around reverse cpts dependency · be9ca0d3
      由 Arnd Bergmann 提交于 
      The dependency is reversed: cpsw and netcp call into cpts,
but cpts depends on the other two in Kconfig. This can lead
to cpts being a loadable module and its callers built-in:

drivers/net/ethernet/ti/cpsw.o: In function `cpsw_remove':
cpsw.c:(.text.cpsw_remove+0xd0): undefined reference to `cpts_release'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_rx_handler':
cpsw.c:(.text.cpsw_rx_handler+0x2dc): undefined reference to `cpts_rx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_tx_handler':
cpsw.c:(.text.cpsw_tx_handler+0x7c): undefined reference to `cpts_tx_timestamp'
drivers/net/ethernet/ti/cpsw.o: In function `cpsw_ndo_stop':

As a workaround, I'm introducing another Kconfig symbol to
control the compilation of cpts, while making the actual
module controlled by a silent symbol that is =y when necessary.

Fixes: 6246168b ("net: ethernet: ti: netcp: add support of cpts")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NGrygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      be9ca0d3
    • D
      Merge branch 'r8152-rx-settings' · 8fb106b2
      由 David S. Miller 提交于 
      Hayes Wang says:

====================
r8152: fix the rx settings of RTL8153

The RMS and the rx early size should base on the same rx size. However,
the RMS is set to 9K bytes now and the rx early depends on mtu. For using
the rx buffer effectively, sync the two settings according to the mtu.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8fb106b2
    • H
      r8152: fix the rx early size of RTL8153 · b20cb60e
      由 hayeswang 提交于 
      revert commit a59e6d81 ("r8152: correct the rx early size") and
fix the rx early size as

	(rx buffer size - rx packet size - rx desc size - alignment) / 4
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b20cb60e
    • H
      r8152: set the RMS of RTL8153 according to the mtu · 210c4f70
      由 hayeswang 提交于 
      Set the received maximum size (RMS) according to the mtu size. It is
unnecessary to receive a packet which is more than the size we could
transmit. Besides, this could let the rx buffer be used effectively.
Signed-off-by: NHayes Wang <hayeswang@realtek.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      210c4f70
    • T
      cgroup, net_cls: iterate the fds of only the tasks which are being migrated · a05d4fd9
      由 Tejun Heo 提交于 
      The net_cls controller controls the classid field of each socket which
is associated with the cgroup.  Because the classid is per-socket
attribute, when a task migrates to another cgroup or the configured
classid of the cgroup changes, the controller needs to walk all
sockets and update the classid value, which was implemented by
3b13758f ("cgroups: Allow dynamically changing net_classid").

While the approach is not scalable, migrating tasks which have a lot
of fds attached to them is rare and the cost is born by the ones
initiating the operations.  However, for simplicity, both the
migration and classid config change paths call update_classid() which
scans all fds of all tasks in the target css.  This is an overkill for
the migration path which only needs to cover a much smaller subset of
tasks which are actually getting migrated in.

On cgroup v1, this can lead to unexpected scalability issues when one
tries to migrate a task or process into a net_cls cgroup which already
contains a lot of fds.  Even if the migration traget doesn't have many
to get scanned, update_classid() ends up scanning all fds in the
target cgroup which can be extremely numerous.

Unfortunately, on cgroup v2 which doesn't use net_cls, the problem is
even worse.  Before bfc2cf6f ("cgroup: call subsys->*attach() only
for subsystems which are actually affected by migration"), cgroup core
would call the ->css_attach callback even for controllers which don't
see actual migration to a different css.

As net_cls is always disabled but still mounted on cgroup v2, whenever
a process is migrated on the cgroup v2 hierarchy, net_cls sees
identity migration from root to root and cgroup core used to call
->css_attach callback for those.  The net_cls ->css_attach ends up
calling update_classid() on the root net_cls css to which all
processes on the system belong to as the controller isn't used.  This
makes any cgroup v2 migration O(total_number_of_fds_on_the_system)
which is horrible and easily leads to noticeable stalls triggering RCU
stall warnings and so on.

The worst symptom is already fixed in upstream by bfc2cf6f
("cgroup: call subsys->*attach() only for subsystems which are
actually affected by migration"); however, backporting that commit is
too invasive and we want to avoid other cases too.

This patch updates net_cls's cgrp_attach() to iterate fds of only the
processes which are actually getting migrated.  This removes the
surprising migration cost which is dependent on the total number of
fds in the target cgroup.  As this leaves write_classid() the only
user of update_classid(), open-code the helper into write_classid().
Reported-by: NDavid Goode <dgoode@fb.com>
Fixes: 3b13758f ("cgroups: Allow dynamically changing net_classid")
Cc: stable@vger.kernel.org # v4.4+
Cc: Nina Schiff <ninasc@fb.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a05d4fd9
  3. 22 3月, 2017 20 次提交
  5. 20 3月, 2017 1 次提交
    • R
      ath10k: fix incorrect wlan_mac_base in qca6174_regs · 6be3b6cc
      由 Ryan Hsu 提交于 
      In the 'commit ebee76f7 ("ath10k: allow setting coverage class")',
it inherits the design and the address offset from ath9k, but the address
is not applicable to QCA6174, which leads to a random crash while doing the
resume() operation, since the set_coverage_class.ops will be called from
ieee80211_reconfig() when resume() (if the wow is not configured).

Fix the incorrect address offset here to avoid the random crash.

Verified on QCA6174/hw3.0 with firmware WLAN.RM.4.4-00022-QCARMSWPZ-2.

kvalo: this also seems to fix a regression with firmware restart.

Fixes: ebee76f7 ("ath10k: allow setting coverage class")
Cc: <stable@vger.kernel.org> # v4.10
Signed-off-by: NRyan Hsu <ryanhsu@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
      6be3b6cc
  7. 17 3月, 2017 8 次提交