Commit Graph

70740 Commits

Author SHA1 Message Date
Colin Ian King
9b029e178e iwlegacy: make const array static to shink object code size
Don't populate const array ac_to_fifo on the stack in an inlined
function, instead make it static.  Makes the object code smaller
by over 800 bytes:

   text	   data	    bss	    dec	    hex	filename
 159029	  33154	   1216	 193399	  2f377	4965-mac.o

   text	   data	    bss	    dec	    hex	filename
 158122	  33250	   1216	 192588	  2f04c	4965-mac.o

(gcc version 7.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:29:18 +03:00
Igor Mitsyanko
115af85123 qtnfmac: do not report channel changes until wiphy is registered
Wireless device may send "channel changed" event before driver
registered this device with wireless core, which will result in
warnings.
Once device is registered, higher layer will query channel info
manually using .get_channel callback.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:18 +03:00
Igor Mitsyanko
6bfe61d697 qtnfmac: remove unused mac::status field
There are no users of this field and it can safely be removed.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:17 +03:00
Igor Mitsyanko
9739763310 qtnfmac: do not cache CSA chandef info
It is never used for anything useful, and all logic is handled by
either WiFi card or higher layers.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:17 +03:00
Igor Mitsyanko
8c015b9067 qtnfmac: pass VIF info to SendChannel command
Do not assume whether wireless device can or can not handle switching
several interfaces on a single radio to different channels. Device will
handle it itself and will return appropriate error code.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:16 +03:00
Igor Mitsyanko
3656ab0fef qtnfmac: let wifi card handle channel switch request to the same chan
No reason to verify channel switch request in driver, it can simply be
forwarded to wireless device. Device can perform required checks and
return appropriate error code, and driver may not even have information
on current operational channel.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:15 +03:00
Igor Mitsyanko
96d4eaf20f qtnfmac: do not cache channel info from "connect" command
This makes no sense because real operational channel is choosen based
on AP operation, not on what STA is configured to.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:15 +03:00
Igor Mitsyanko
9e5478b608 qtnfmac: retrieve current channel info from EP
Do not try to cache current operational channel info in driver, this
is a potential source of synchronization issues + driver does not
really need that info.

Introduce GET_CHANNEL command and process it appropriately.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:14 +03:00
Igor Mitsyanko
fac7f9bf14 qtnfmac: make "Channel change" event report full channel info
Specifically, it has to report center frequency, secondary center
frequency (for 80+80) and BW.
Introduce channel definition structure to qlink and modify channel
change event processing function accordingly.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:13 +03:00
Igor Mitsyanko
77d6814774 qtnfmac: convert channel width from bitfiled to simple enum
This will allow to use qlink channel width values to specify BW setting
corresponding to enum nl80211_chan_width.
Current user is converted to apply BIT() macro manually to each individual
qlink_channel_width enumeration value.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:27:13 +03:00
Karun Eagalapati
20db073327 rsi: sdio suspend and resume support
SDIO suspend and resume handlers are implemented and verified
that device works after suspend/resume cycle.

Signed-off-by: Karun Eagalapati <karun256@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:26:30 +03:00
Pavani Muthyala
192524a499 rsi: add version information
We will dump information about firmware version, firmware file
name and operating mode during initialization.

Signed-off-by: Pavani Muthyala <pavani.muthyala@redpinesignals.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:25:23 +03:00
Colin Ian King
7dfb0ebd02 mwifiex: make const array tos_to_ac static, reduces object code size
Don't populate the read-only const array tos_to_ac on the stack,
instead make it static. Makes the object code smaller by 250 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  26104	   2720	    128	  28952	   7118	wmm.o

After:
   text	   data	    bss	    dec	    hex	filename
  25758	   2816	    128	  28702	   701e	wmm.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:24:38 +03:00
Adam Borowski
e0a576d747 rtl8xxxu: Don't printk raw binary if serial number is not burned in.
I assume that a blank efuse comes with all ones, thus I did not bother
recognizing other possible junk values.  This matches 100% of dongles
I've seen (a single Gembird 8192eu).

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:24:05 +03:00
Colin Ian King
d5633bb2c6 brcmsmac: make const array ucode_ofdm_rates static, reduces object code size
Don't populate const array ucode_ofdm_rates on the stack, instead make it
static. Makes the object code smaller by 100 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  39482	    564	      0	  40046	   9c6e	phy_cmn.o

After
   text	   data	    bss	    dec	    hex	filename
  39326	    620	      0	  39946	   9c0a	phy_cmn.o

(gcc 6.3.0, x86-64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:23:10 +03:00
Allen Pais
30ac407639 brcmfmac: use setup_timer() helper
Use setup_timer function instead of initializing timer with the
function and data fields.

Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-25 11:21:19 +03:00
Ganapathi Bhat
e9a3846afa mwifiex: use get_random_mask_addr() helper
Avoid calculating random MAC address in driver. Instead make
use of 'get_random_mask_addr()' function.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:48:34 +03:00
Ganapathi Bhat
e251a882c0 mwifiex: avoid storing random_mac in private
Application will keep track of whether MAC address randomization
is enabled or not during scan. But at present driver is storing
'random_mac' in mwifiex_private which implies even after scan is
done driver has some reference to the earlier 'scan request'. To
avoid this, make use of 'mac_addr' variable in 'scan_request' to
store 'random_mac'. This structure will be freed by cfg80211 once
scan is done.

Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:47:53 +03:00
Colin Ian King
d157bcfaf8 mwifiex: make const arrays static to shink object code size
Don't populate const arrays on the stack, instead make them static
Makes the object code smaller by nearly 300 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  69260	  16149	    576	  85985	  14fe1	cfg80211.o

After:
   text	   data	    bss	    dec	    hex	filename
  68385	  16725	    576	  85686	  14eb6	cfg80211.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:47:24 +03:00
Himanshu Jha
85dafc1291 mwifiex: remove unnecessary call to memset
call to memset to assign 0 value immediately after allocating
memory with kzalloc is unnecesaary as kzalloc allocates the memory
filled with 0 value.

Semantic patch used to resolve this issue:

@@
expression e,e2; constant c;
statement S;
@@

  e = kzalloc(e2, c);
  if(e == NULL) S
- memset(e, 0, e2);

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:46:59 +03:00
Ganapathi Bhat
26177d7f39 mwifiex: check for mfg_mode in add_virtual_intf
If driver is loaded with 'mfg_mode' enabled, then the sending
commands are not allowed. So, skip sending commands, to firmware
in mwifiex_add_virtual_intf if 'mfg_mode' is enabled.

Fixes: 7311ea8500 ("mwifiex: fix AP start problem for newly added interface")
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:46:32 +03:00
Ganapathi Bhat
31726ff201 mwifiex: notify cfg80211 about scan abort
Driver sends a series of scan commands to firmware to serve a
user scan request. If an intermediate scan command fails, driver
aborts the scan but it is not being informed to cfg80211. This
will cause issues in applications performing periodic scans.
Fix this by informing scan abort.

Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:45:45 +03:00
Larry Finger
519ce2f933 rtlwifi: rtl8192ee: Fix memory leak when loading firmware
In routine rtl92ee_set_fw_rsvdpagepkt(), the driver allocates an skb, but
never calls rtl_cmd_send_packet(), which will free the buffer. All other
rtlwifi drivers perform this operation correctly.

This problem has been in the driver since it was included in the kernel.
Fortunately, each firmware load only leaks 4 buffers, which likely
explains why it has not previously been detected.

Cc: Stable <stable@vger.kernel.org> # 3.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:44:44 +03:00
Larry Finger
0f61953dd0 rtlwifi: btcoexist: 23b 1ant: fix duplicated code for different branches
A typo led to this issue, which was detected with the help of Coccinelle.

In addition to fixing the error, the code is refactored to eliminate an
if statement.

Addresses-Coverity-ID: 1226788

Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:41:47 +03:00
Colin Ian King
e3ae1c7720 b43legacy: fix unitialized reads of ret by initializing the array to zero
The u8 char array ret is not being initialized and elements outside
the range start to end contain just garbage values from the stack.
This results in a later scan of the array to read potentially
uninitialized values.  Fix this by initializing the array to zero.
This seems to have been an issue since the very first commit.

Detected by CoverityScan CID#139653 ("Uninitialized scalar variable")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Michael Buesch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:41:08 +03:00
Colin Ian King
e31fbe1034 b43: fix unitialized reads of ret by initializing the array to zero
The u8 char array ret is not being initialized and elements outside
the range start to end contain just garbage values from the stack.
This results in a later scan of the array to read potentially
uninitialized values.  Fix this by initializing the array to zero.
This seems to have been an issue since the very first commit.

Detected by CoverityScan CID#139652 ("Uninitialized scalar variable")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Michael Buesch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:41:07 +03:00
Colin Ian King
6508497cbd rsi: fix a dereference on adapter before it has been null checked
The assignment of dev is dereferencing adapter before adapter has
been null checked, potentially leading to a null pointer dereference.
Fix this by simply moving the assignment of dev to a later point
after the sanity null check of adapter.

Detected by CoverityScan CID#1398383 ("Dereference before null check")

Fixes: dad0d04fa7 ("rsi: Add RS9113 wireless driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:40:16 +03:00
Prameela Rani Garnepudi
af75687286 rsi: miscellaneous changes for p2p mode
Add P2P_GO condition as well when handling BEACON_ENABLE
from mac80211. Also passing 'vif' for auto rate request.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:58 +03:00
Prameela Rani Garnepudi
c7245c0975 rsi: aggregation changes for p2p mode
P2P Go condition is added wherever AP mode is there
in aggregation path.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:57 +03:00
Prameela Rani Garnepudi
efe877aa0f rsi: disallow power save config when AP vap running
When AP or P2P GO VAP is running, power save configuration should
be disallowed. To check interface type in power save configuration
'vif' parameters is passed.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:57 +03:00
Prameela Rani Garnepudi
eac4eed322 rsi: tx and rx path enhancements for p2p mode
Data descriptor is updated to include vap_id. TX command frame
key config also updated to include vap_id.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:56 +03:00
Prameela Rani Garnepudi
4671c209ac rsi: handle peer connection and disconnection in p2p mode
Parameter 'vif' is passed to inform_bss_status function to
check the type of vif and to get vap_id.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:56 +03:00
Prameela Rani Garnepudi
df77191191 rsi: add support for p2p listen
Remain-on-channel and cancel-remain-on-channel are implemented
to support p2p listen phase.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:55 +03:00
Prameela Rani Garnepudi
b8bd3a439f rsi: add/remove interface enhancements for p2p
STA_OPMODE and AP_OPMODE macros are renamed to RSI_OPMODE_STA
and RSI_OPMODE_AP. New opmodes are added to this list for P2P
support. Mapping of mac80211 interface types to rsi interface
types are added.
Add and remove interface callbacks are handled for P2P mode.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:55 +03:00
Prameela Rani Garnepudi
421eedff11 rsi: add p2p support parameters to mac80211
This patch adds p2p supported parameters to mac80211 hw and
wiphy structures during mac80211 registration.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-09-20 15:38:54 +03:00
Linus Torvalds
48bddb143b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix hotplug deadlock in hv_netvsc, from Stephen Hemminger.

 2) Fix double-free in rmnet driver, from Dan Carpenter.

 3) INET connection socket layer can double put request sockets, fix
    from Eric Dumazet.

 4) Don't match collect metadata-mode tunnels if the device is down,
    from Haishuang Yan.

 5) Do not perform TSO6/GSO on ipv6 packets with extensions headers in
    be2net driver, from Suresh Reddy.

 6) Fix scaling error in gen_estimator, from Eric Dumazet.

 7) Fix 64-bit statistics deadlock in systemport driver, from Florian
    Fainelli.

 8) Fix use-after-free in sctp_sock_dump, from Xin Long.

 9) Reject invalid BPF_END instructions in verifier, from Edward Cree.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
  mlxsw: spectrum_router: Only handle IPv4 and IPv6 events
  Documentation: link in networking docs
  tcp: fix data delivery rate
  bpf/verifier: reject BPF_ALU64|BPF_END
  sctp: do not mark sk dumped when inet_sctp_diag_fill returns err
  sctp: fix an use-after-free issue in sctp_sock_dump
  netvsc: increase default receive buffer size
  tcp: update skb->skb_mstamp more carefully
  net: ipv4: fix l3slave check for index returned in IP_PKTINFO
  net: smsc911x: Quieten netif during suspend
  net: systemport: Fix 64-bit stats deadlock
  net: vrf: avoid gcc-4.6 warning
  qed: remove unnecessary call to memset
  tg3: clean up redundant initialization of tnapi
  tls: make tls_sw_free_resources static
  sctp: potential read out of bounds in sctp_ulpevent_type_enabled()
  MAINTAINERS: review Renesas DT bindings as well
  net_sched: gen_estimator: fix scaling error in bytes/packets samples
  nfp: wait for the NSP resource to appear on boot
  nfp: wait for board state before talking to the NSP
  ...
2017-09-16 11:28:59 -07:00
Ido Schimmel
8e29f97979 mlxsw: spectrum_router: Only handle IPv4 and IPv6 events
The driver doesn't support events from address families other than IPv4
and IPv6, so ignore them. Otherwise, we risk queueing a work item before
it's initialized.

This can happen in case a VRF is configured when MROUTE_MULTIPLE_TABLES
is enabled, as the VRF driver will try to add an l3mdev rule for the
IPMR family.

Fixes: 65e65ec137 ("mlxsw: spectrum_router: Don't ignore IPv6 notifications")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Andreas Rammhold <andreas@rammhold.de>
Reported-by: Florian Klink <flokli@flokli.de>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-16 09:21:43 -07:00
Stephen Hemminger
5023a6db73 netvsc: increase default receive buffer size
The default receive buffer size was reduced by recent change
to a value which was appropriate for 10G and Windows Server 2016.
But the value is too small for full performance with 40G on Azure.
Increase the default back to maximum supported by host.

Fixes: 8b5327975a ("netvsc: allow controlling send/recv buffer size")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15 14:41:12 -07:00
Geert Uytterhoeven
2aa70f8649 net: smsc911x: Quieten netif during suspend
If the network interface is kept running during suspend, the net core
may call net_device_ops.ndo_start_xmit() while the Ethernet device is
still suspended, which may lead to a system crash.

E.g. on sh73a0/kzm9g and r8a73a4/ape6evm, the external Ethernet chip is
driven by a PM controlled clock.  If the Ethernet registers are accessed
while the clock is not running, the system will crash with an imprecise
external abort.

As this is a race condition with a small time window, it is not so easy
to trigger at will.  Using pm_test may increase your chances:

    # echo 0 > /sys/module/printk/parameters/console_suspend
    # echo platform > /sys/power/pm_test
    # echo mem > /sys/power/state

To fix this, make sure the network interface is quietened during
suspend.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15 14:24:49 -07:00
Florian Fainelli
7095c97345 net: systemport: Fix 64-bit stats deadlock
We can enter a deadlock situation because there is no sufficient protection
when ndo_get_stats64() runs in process context to guard against RX or TX NAPI
contexts running in softirq, this can lead to the following lockdep splat and
actual deadlock was experienced as well with an iperf session in the background
and a while loop doing ifconfig + ethtool.

[    5.780350] ================================
[    5.784679] WARNING: inconsistent lock state
[    5.789011] 4.13.0-rc7-02179-g32fae27c725d #70 Not tainted
[    5.794561] --------------------------------
[    5.798890] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[    5.804971] swapper/0/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
[    5.810175]  (&syncp->seq#2){+.?...}, at: [<c0768a28>] bcm_sysport_tx_reclaim+0x30/0x54
[    5.818327] {SOFTIRQ-ON-W} state was registered at:
[    5.823278]   bcm_sysport_get_stats64+0x17c/0x258
[    5.828053]   dev_get_stats+0x38/0xac
[    5.831776]   rtnl_fill_stats+0x30/0x118
[    5.835761]   rtnl_fill_ifinfo+0x538/0xe24
[    5.839921]   rtmsg_ifinfo_build_skb+0x6c/0xd8
[    5.844430]   rtmsg_ifinfo_event.part.5+0x14/0x44
[    5.849201]   rtmsg_ifinfo+0x20/0x28
[    5.852837]   register_netdevice+0x628/0x6b8
[    5.857171]   register_netdev+0x14/0x24
[    5.861051]   bcm_sysport_probe+0x30c/0x438
[    5.865280]   platform_drv_probe+0x50/0xb0
[    5.869418]   driver_probe_device+0x2e8/0x450
[    5.873817]   __driver_attach+0x104/0x120
[    5.877871]   bus_for_each_dev+0x7c/0xc0
[    5.881834]   bus_add_driver+0x1b0/0x270
[    5.885797]   driver_register+0x78/0xf4
[    5.889675]   do_one_initcall+0x54/0x190
[    5.893646]   kernel_init_freeable+0x144/0x1d0
[    5.898135]   kernel_init+0x8/0x110
[    5.901665]   ret_from_fork+0x14/0x2c
[    5.905363] irq event stamp: 24263
[    5.908804] hardirqs last  enabled at (24262): [<c08eecf0>] net_rx_action+0xc4/0x4e4
[    5.916624] hardirqs last disabled at (24263): [<c0a7da00>] _raw_spin_lock_irqsave+0x1c/0x98
[    5.925143] softirqs last  enabled at (24258): [<c022a7fc>] irq_enter+0x84/0x98
[    5.932524] softirqs last disabled at (24259): [<c022a918>] irq_exit+0x108/0x16c
[    5.939985]
[    5.939985] other info that might help us debug this:
[    5.946576]  Possible unsafe locking scenario:
[    5.946576]
[    5.952556]        CPU0
[    5.955031]        ----
[    5.957506]   lock(&syncp->seq#2);
[    5.960955]   <Interrupt>
[    5.963604]     lock(&syncp->seq#2);
[    5.967227]
[    5.967227]  *** DEADLOCK ***
[    5.967227]
[    5.973222] 1 lock held by swapper/0/0:
[    5.977092]  #0:  (&(&ring->lock)->rlock){..-...}, at: [<c0768a18>] bcm_sysport_tx_reclaim+0x20/0x54

So just remove the u64_stats_update_begin()/end() pair in ndo_get_stats64()
since it does not appear to be useful for anything. No inconsistency was
observed with either ifconfig or ethtool, global TX counts equal the sum of
per-queue TX counts on a 32-bit architecture.

Fixes: 10377ba767 ("net: systemport: Support 64bit statistics")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15 14:24:10 -07:00
Arnd Bergmann
ecf091171b net: vrf: avoid gcc-4.6 warning
When building an allmodconfig kernel with gcc-4.6, we get a rather
odd warning:

drivers/net/vrf.c: In function ‘vrf_ip6_input_dst’:
drivers/net/vrf.c:964:3: error: initialized field with side-effects overwritten [-Werror]
drivers/net/vrf.c:964:3: error: (near initialization for ‘fl6’) [-Werror]

I have no idea what this warning is even trying to say, but it does
seem like a false positive. Reordering the initialization in to match
the structure definition gets rid of the warning, and might also avoid
whatever gcc thinks is wrong here.

Fixes: 9ff7438460 ("net: vrf: Handle ipv6 multicast and link-local addresses")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15 14:22:21 -07:00
Himanshu Jha
4739df6211 qed: remove unnecessary call to memset
call to memset to assign 0 value immediately after allocating
memory with kzalloc is unnecesaary as kzalloc allocates the memory
filled with 0 value.

Semantic patch used to resolve this issue:

@@
expression e,e2; constant c;
statement S;
@@

  e = kzalloc(e2, c);
  if(e == NULL) S
- memset(e, 0, e2);

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Acked-by: Sudarsana Kalluru <sudarsana.kalluru@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-15 14:02:05 -07:00
Colin Ian King
23f4822207 tg3: clean up redundant initialization of tnapi
tnapi is being initialized and then immediately updated and
hence the initialiation is redundant.  Clean up the warning
by moving the declaration and initialization to the inside
of the for-loop.

Cleans up clang scan-build warning:
warning: Value stored to 'tnapi' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-14 10:00:29 -07:00
Christoph Hellwig
6faadbbb7f dmi: Mark all struct dmi_system_id instances const
... and __initconst if applicable.

Based on similar work for an older kernel in the Grsecurity patch.

[JD: fix toshiba-wmi build]
[JD: add htcpen]
[JD: move __initconst where checkscript wants it]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2017-09-14 11:59:30 +02:00
Jakub Kicinski
7dbd5b7517 nfp: wait for the NSP resource to appear on boot
The control process (NSP) may take some time to complete its
initialization.  This is not a problem on most servers, but
on very fast-booting machines it may not be ready for operation
when driver probes the device.  There is also a version of the
flash in the wild where NSP tries to train the links as part
of init.  To wait for NSP initialization we should make sure
its resource has already been added to the resource table.
NSP adds itself there as last step of init.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-13 13:29:13 -07:00
Jakub Kicinski
4cbe94f2af nfp: wait for board state before talking to the NSP
Board state informs us which low-level initialization stages the card
has completed.  We should wait for the card to be fully initialized
before trying to communicate with it, not only before we configure
passing traffic.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-13 13:29:13 -07:00
Pieter Jansen van Vuuren
b95a2d831b nfp: add whitelist of supported flow dissector
Previously we did not check the flow dissector against a list of allowed
and supported flow key dissectors. This patch introduces such a list and
correctly rejects unsupported flow keys.

Fixes: 43f84b72c5 ("nfp: add metadata to each flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-13 13:29:13 -07:00
Suresh Reddy
822f8565c9 be2net: fix TSO6/GSO issue causing TX-stall on Lancer/BEx
IPv6 TSO requests with extension hdrs are a problem to the
Lancer and BEx chips. Workaround is to disable TSO6 feature
for such packets.

Also in Lancer chips, MSS less than 256 was resulting in TX stall.
Fix this by disabling GSO when MSS less than 256.

Signed-off-by: Suresh Reddy <suresh.reddy@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-13 09:28:18 -07:00
Arnd Bergmann
854426ef35 w90p910_ether: include linux/interrupt.h
A randconfig build caused a compile failure:

drivers/net/ethernet/nuvoton/w90p910_ether.c: In function 'w90p910_ether_close':
drivers/net/ethernet/nuvoton/w90p910_ether.c:580:2: error: implicit declaration of function 'free_irq'; did you mean 'free_uid'? [-Werror=implicit-function-declaration]

Adding the correct include fixes the problem.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-12 20:59:19 -07:00
Nikolay Aleksandrov
f13ad104b4 net: bonding: fix tlb_dynamic_lb default value
Commit 8b426dc54c ("bonding: remove hardcoded value") changed the
default value for tlb_dynamic_lb which lead to either broken ALB mode
(since tlb_dynamic_lb can be changed only in TLB) or setting TLB mode
with tlb_dynamic_lb equal to 0.
The first issue was recently fixed by setting tlb_dynamic_lb to 1 always
when switching to ALB mode, but the default value is still wrong and
we'll enter TLB mode with tlb_dynamic_lb equal to 0 if the mode is
changed via netlink or sysfs. In order to restore the previous behaviour
and default value simply remove the mode check around the default param
initialization for tlb_dynamic_lb which will always set it to 1 as
before.

Fixes: 8b426dc54c ("bonding: remove hardcoded value")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-12 20:58:12 -07:00