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Just minor overlapping changes in the conflicts here.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
"Yeah I should have sent a pull request last week, so there is a lot
more here than usual:
1) Fix memory leak in ebtables compat code, from Wenwen Wang.
2) Several kTLS bug fixes from Jakub Kicinski (circular close on
disconnect etc.)
3) Force slave speed check on link state recovery in bonding 802.3ad
mode, from Thomas Falcon.
4) Clear RX descriptor bits before assigning buffers to them in
stmmac, from Jose Abreu.
5) Several missing of_node_put() calls, mostly wrt. for_each_*() OF
loops, from Nishka Dasgupta.
6) Double kfree_skb() in peak_usb can driver, from Stephane Grosjean.
7) Need to hold sock across skb->destructor invocation, from Cong
Wang.
8) IP header length needs to be validated in ipip tunnel xmit, from
Haishuang Yan.
9) Use after free in ip6 tunnel driver, also from Haishuang Yan.
10) Do not use MSI interrupts on r8169 chips before RTL8168d, from
Heiner Kallweit.
11) Upon bridge device init failure, we need to delete the local fdb.
From Nikolay Aleksandrov.
12) Handle erros from of_get_mac_address() properly in stmmac, from
Martin Blumenstingl.
13) Handle concurrent rename vs. dump in netfilter ipset, from Jozsef
Kadlecsik.
14) Setting NETIF_F_LLTX on mac80211 causes complete breakage with
some devices, so revert. From Johannes Berg.
15) Fix deadlock in rxrpc, from David Howells.
16) Fix Kconfig deps of enetc driver, we must have PHYLIB. From Yue
Haibing.
17) Fix mvpp2 crash on module removal, from Matteo Croce.
18) Fix race in genphy_update_link, from Heiner Kallweit.
19) bpf_xdp_adjust_head() stopped working with generic XDP when we
fixes generic XDP to support stacked devices properly, fix from
Jesper Dangaard Brouer.
20) Unbalanced RCU locking in rt6_update_exception_stamp_rt(), from
David Ahern.
21) Several memory leaks in new sja1105 driver, from Vladimir Oltean"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (214 commits)
net: dsa: sja1105: Fix memory leak on meta state machine error path
net: dsa: sja1105: Fix memory leak on meta state machine normal path
net: dsa: sja1105: Really fix panic on unregistering PTP clock
net: dsa: sja1105: Use the LOCKEDS bit for SJA1105 E/T as well
net: dsa: sja1105: Fix broken learning with vlan_filtering disabled
net: dsa: qca8k: Add of_node_put() in qca8k_setup_mdio_bus()
net: sched: sample: allow accessing psample_group with rtnl
net: sched: police: allow accessing police->params with rtnl
net: hisilicon: Fix dma_map_single failed on arm64
net: hisilicon: fix hip04-xmit never return TX_BUSY
net: hisilicon: make hip04_tx_reclaim non-reentrant
tc-testing: updated vlan action tests with batch create/delete
net sched: update vlan action for batched events operations
net: stmmac: tc: Do not return a fragment entry
net: stmmac: Fix issues when number of Queues >= 4
net: stmmac: xgmac: Fix XGMAC selftests
be2net: disable bh with spin_lock in be_process_mcc
net: cxgb3_main: Fix a resource leak in a error path in 'init_one()'
net: ethernet: sun4i-emac: Support phy-handle property for finding PHYs
net: bridge: move default pvid init/deinit to NETDEV_REGISTER/UNREGISTER
...
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The IS_ERR_OR_NULL(priv->clock) check inside
sja1105_ptp_clock_unregister() is preventing cancel_delayed_work_sync
from actually being run.
Additionally, sja1105_ptp_clock_unregister() does not actually get run,
when placed in sja1105_remove(). The DSA switch gets torn down, but the
sja1105 module does not get unregistered. So sja1105_ptp_clock_unregister
needs to be moved to sja1105_teardown, to be symmetrical with
sja1105_ptp_clock_register which is called from the DSA sja1105_setup.
It is strange to fix a "fixes" patch, but the probe failure can only be
seen when the attached PHY does not respond to MDIO (issue which I can't
pinpoint the reason to) and it goes away after I power-cycle the board.
This time the patch was validated on a failing board, and the kernel
panic from the fixed commit's message can no longer be seen.
Fixes: 29dd908d355f ("net: dsa: sja1105: Cancel PTP delayed work on unregister")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It looks like the FDB dump taken from first-generation switches also
contains information on whether entries are static or not. So use that
instead of searching through the driver's tables.
Fixes: d763778224ea ("net: dsa: sja1105: Implement is_static for FDB entries on E/T")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When put under a bridge with vlan_filtering 0, the SJA1105 ports will
flood all traffic as if learning was broken. This is because learning
interferes with the rx_vid's configured by dsa_8021q as unique pvid's.
So learning technically still *does* work, it's just that the learnt
entries never get matched due to their unique VLAN ID.
The setting that saves the day is Shared VLAN Learning, which on this
switch family works exactly as desired: VLAN tagging still works
(untagged traffic gets the correct pvid) and FDB entries are still
populated with the correct contents including VID. Also, a frame cannot
violate the forwarding domain restrictions enforced by its classified
VLAN. It is just that the VID is ignored when looking up the FDB for
taking a forwarding decision (selecting the egress port).
This patch activates SVL, and the result is that frames with a learnt
DMAC are no longer flooded in the scenario described above.
Now exactly *because* SVL works as desired, we have to revisit some
earlier patches:
- It is no longer necessary to manipulate the VID of the 'bridge fdb
{add,del}' command when vlan_filtering is off. This is because now,
SVL is enabled for that case, so the actual VID does not matter*.
- It is still desirable to hide dsa_8021q VID's in the FDB dump
callback. But right now the dump callback should no longer hide
duplicates (one per each front panel port's pvid, plus one for the
VLAN that the CPU port is going to tag a TX frame with), because there
shouldn't be any (the switch will match a single FDB entry no matter
its VID anyway).
* Not really... It's no longer necessary to transform a 'bridge fdb add'
into 5 fdb add operations, but the user might still add a fdb entry with
any vid, and all of them would appear as duplicates in 'bridge fdb
show'. So force a 'bridge fdb add' to insert the VID of 0**, so that we
can prune the duplicates at insertion time.
** The VID of 0 is better than 1 because it is always guaranteed to be
in the ports' hardware filter. DSA also avoids putting the VID inside
the netlink response message towards the bridge driver when we return
this particular VID, which makes it suitable for FDB entries learnt
with vlan_filtering off.
Fixes: 227d07a07ef1 ("net: dsa: sja1105: Add support for traffic through standalone ports")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Georg Waibel <georg.waibel@sensor-technik.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Each iteration of for_each_available_child_of_node() puts the previous
node, but in the case of a return from the middle of the loop, there
is no put, thus causing a memory leak. Hence add an of_node_put() before
the return.
Additionally, the local variable ports in the function
qca8k_setup_mdio_bus() takes the return value of of_get_child_by_name(),
which gets a node but does not put it. If the function returns without
putting ports, it may cause a memory leak. Hence put ports before the
mid-loop return statement, and also outside the loop after its last usage
in this function.
Issues found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On the arm64 platform, executing "ifconfig eth0 up" will fail,
returning "ifconfig: SIOCSIFFLAGS: Input/output error."
ndev->dev is not initialized, dma_map_single->get_dma_ops->
dummy_dma_ops->__dummy_map_page will return DMA_ERROR_CODE
directly, so when we use dma_map_single, the first parameter
is to use the device of platform_device.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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TX_DESC_NUM is 256, in tx_count, the maximum value of
mod(TX_DESC_NUM - 1) is 254, the variable "count" in
the hip04_mac_start_xmit function is never equal to
(TX_DESC_NUM - 1), so hip04_mac_start_xmit never
return NETDEV_TX_BUSY.
tx_count is modified to mod(TX_DESC_NUM) so that
the maximum value of tx_count can reach
(TX_DESC_NUM - 1), then hip04_mac_start_xmit can reurn
NETDEV_TX_BUSY.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If hip04_tx_reclaim is interrupted while it is running
and then __napi_schedule continues to execute
hip04_rx_poll->hip04_tx_reclaim, reentrancy occurs
and oops is generated. So you need to mask the interrupt
during the hip04_tx_reclaim run.
The kernel oops exception stack is as follows:
Unable to handle kernel NULL pointer dereference
at virtual address 00000050
pgd = c0003000
[00000050] *pgd=80000000a04003, *pmd=00000000
Internal error: Oops: 206 [#1] SMP ARM
Modules linked in: hip04_eth mtdblock mtd_blkdevs mtd
ohci_platform ehci_platform ohci_hcd ehci_hcd
vfat fat sd_mod usb_storage scsi_mod usbcore usb_common
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 4.4.185 #1
Hardware name: Hisilicon A15
task: c0a250e0 task.stack: c0a00000
PC is at hip04_tx_reclaim+0xe0/0x17c [hip04_eth]
LR is at hip04_tx_reclaim+0x30/0x17c [hip04_eth]
pc : [<bf30c3a4>] lr : [<bf30c2f4>] psr: 600e0313
sp : c0a01d88 ip : 00000000 fp : c0601f9c
r10: 00000000 r9 : c3482380 r8 : 00000001
r7 : 00000000 r6 : 000000e1 r5 : c3482000 r4 : 0000000c
r3 : f2209800 r2 : 00000000 r1 : 00000000 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 32c5387d Table: 03d28c80 DAC: 55555555
Process swapper/0 (pid: 0, stack limit = 0xc0a00190)
Stack: (0xc0a01d88 to 0xc0a02000)
[<bf30c3a4>] (hip04_tx_reclaim [hip04_eth]) from [<bf30d2e0>]
(hip04_rx_poll+0x88/0x368 [hip04_eth])
[<bf30d2e0>] (hip04_rx_poll [hip04_eth]) from [<c04c2d9c>] (net_rx_action+0x114/0x34c)
[<c04c2d9c>] (net_rx_action) from [<c021eed8>] (__do_softirq+0x218/0x318)
[<c021eed8>] (__do_softirq) from [<c021f284>] (irq_exit+0x88/0xac)
[<c021f284>] (irq_exit) from [<c0240090>] (msa_irq_exit+0x11c/0x1d4)
[<c0240090>] (msa_irq_exit) from [<c02677e0>] (__handle_domain_irq+0x110/0x148)
[<c02677e0>] (__handle_domain_irq) from [<c0201588>] (gic_handle_irq+0xd4/0x118)
[<c0201588>] (gic_handle_irq) from [<c0551700>] (__irq_svc+0x40/0x58)
Exception stack(0xc0a01f30 to 0xc0a01f78)
1f20: c0ae8b40 00000000 00000000 00000000
1f40: 00000002 ffffe000 c0601f9c 00000000 ffffffff c0a2257c c0a22440 c0831a38
1f60: c0a01ec4 c0a01f80 c0203714 c0203718 600e0213 ffffffff
[<c0551700>] (__irq_svc) from [<c0203718>] (arch_cpu_idle+0x20/0x3c)
[<c0203718>] (arch_cpu_idle) from [<c025bfd8>] (cpu_startup_entry+0x244/0x29c)
[<c025bfd8>] (cpu_startup_entry) from [<c054b0d8>] (rest_init+0xc8/0x10c)
[<c054b0d8>] (rest_init) from [<c0800c58>] (start_kernel+0x468/0x514)
Code: a40599e5 016086e2 018088e2 7660efe6 (503090e5)
---[ end trace 1db21d6d09c49d74 ]---
Kernel panic - not syncing: Fatal exception in interrupt
CPU3: stopping
CPU: 3 PID: 0 Comm: swapper/3 Tainted: G D O 4.4.185 #1
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Do not try to return a fragment entry from TC list. Otherwise we may not
clean properly allocated entries.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When queues >= 4 we use different registers but we were not subtracting
the offset of 4. Fix this.
Found out by Coverity.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixup the XGMAC selftests by correctly finishing the implementation of
set_filter callback.
Result:
$ ethtool -t enp4s0
The test result is PASS
The test extra info:
1. MAC Loopback 0
2. PHY Loopback -95
3. MMC Counters -95
4. EEE -95
5. Hash Filter MC 0
6. Perfect Filter UC 0
7. MC Filter 0
8. UC Filter 0
9. Flow Control 0
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.3
Second set of fixes for 5.3. Lots of iwlwifi fixes have accumulated
which consists most of patches in this pull request. Only most notable
iwlwifi fixes are listed below.
mwifiex
* fix a regression related to WPA1 networks since v5.3-rc1
iwlwifi
* fix use-after-free issues
* fix DMA mapping API usage errors
* fix frame drop occurring due to reorder buffer handling in
RSS in certain conditions
* fix rate scale locking issues
* disable TX A-MSDU on older NICs as it causes problems and was
never supposed to be supported
* new PCI IDs
* GEO_TX_POWER_LIMIT API issue that many people were hitting
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes and preserves existing code style, and readability,
for IWL_ERR() and IWL_WARN() macros invocations recently added in dbg.c
Fixes the following build errors with Android build system:
/home/utente/pie-x86_kernel/kernel/drivers/net/wireless/intel/iwlwifi/fw/dbg.c: In function '_iwl_fw_dbg_apply_point':
/home/utente/pie-x86_kernel/kernel/drivers/net/wireless/intel/iwlwifi/fw/dbg.c:2445:3:
error: call to '__compiletime_assert_2446' declared with attribute error: BUILD_BUG_ON failed: err_str[sizeof(err_str) - 2] != '\n'
/home/utente/pie-x86_kernel/kernel/drivers/net/wireless/intel/iwlwifi/fw/dbg.c:2451:3:
error: call to '__compiletime_assert_2452' declared with attribute error: BUILD_BUG_ON failed: err_str[sizeof(err_str) - 2] != '\n'
...
/home/utente/pie-x86_kernel/kernel/drivers/net/wireless/intel/iwlwifi/fw/dbg.c:2789:5:
error: call to '__compiletime_assert_2790' declared with attribute error: BUILD_BUG_ON failed: invalid_ap_str[sizeof(invalid_ap_str) - 2] != '\n'
/home/utente/pie-x86_kernel/kernel/drivers/net/wireless/intel/iwlwifi/fw/dbg.c:2800:5:
error: call to '__compiletime_assert_2801' declared with attribute error: BUILD_BUG_ON failed: invalid_ap_str[sizeof(invalid_ap_str) - 2] != '\n'
Fixes: 427ab6385cf3 ("iwlwifi: dbg_ini: enforce apply point early on buffer allocation tlv")
Fixes: 57d88b116175 ("iwlwifi: dbg_ini: support debug info TLV")
Signed-off-by: Mauro Rossi <issor.oruam@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
We have a lot of fixes, most of them are also applicable to stable.
Notably:
* fix use-after-free issues
* fix DMA mapping API usage errors
* fix frame drop occurring due to reorder buffer handling in
RSS in certain conditions
* fix rate scale locking issues
* disable TX A-MSDU on older NICs as it causes problems and was
never supposed to be supported
* new PCI IDs
* GEO_TX_POWER_LIMIT API issue that many people were hitting
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Accessing the hdr of an skb that was consumed already isn't
a good idea.
First ask if the skb is a QoS packet, then keep that data
on stack, and then consume the skb.
This was spotted by KASAN.
Cc: stable@vger.kernel.org
Fixes: 08f7d8b69aaf ("iwlwifi: mvm: bring back mvm GSO code")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The index for the elements of the ACPI object we dereference
was static. This means that if we called the function twice
we wouldn't start from 3 again, but rather from the latest
index we reached in the previous call.
This was dutifully reported by KASAN.
Fix this.
Cc: stable@vger.kernel.org
Fixes: 6996490501ed ("iwlwifi: mvm: add support for EWRD (Dynamic SAR) ACPI table")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to remember how to unmap a memory (as single or
as page), we maintain a bit per Transmit Buffer (TBs) in
the meta data (structure iwl_cmd_meta).
We maintain a bitmap: 1 bit per TB.
If the TB is set, we will free the memory as a page.
This bitmap was never cleared. Fix this.
Cc: stable@vger.kernel.org
Fixes: 3cd1980b0cdf ("iwlwifi: pcie: introduce new tfd and tb formats")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We erroneously added a check for FW API version 41 before sending
GEO_TX_POWER_LIMIT, but this was already implemented in version 38.
Additionally, it was cherry-picked to older versions, namely 17, 26
and 29, so check for those as well.
Cc: stable@vger.kernel.org
Fixes: eca1e56ceedd ("iwlwifi: mvm: don't send GEO_TX_POWER_LIMIT to old firmwares")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add a few PCI ID'S for 9000 series.
Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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lq_info is an arary of size 2, active_tbl index is u8.
When accessing lq_info[1 - active_tbl], theoretically it's possible
that the access will be made to a negative index value.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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An earlier patch made sure that the queues are not lagging
too far behind. This means that iwl_mvm_release_frames
should not be called with a head_sn too far behind NSSN.
Don't take the risk to change completely the entry
condition to iwl_mvm_release_frames, but don't update
the head_sn is the NSSN is more than 2048 packets ahead
of us. Since this just cannot be right. This means that
the scenario described here happened. We are queue 0.
Q:0 Q:1
head_sn: 0 -> 2047
head_sn: 2048
Lots of packets arrive:
head_sn: 2047 -> 2150
send NSSN_SYNC notification
Handle notification
from the firmware and
do NOT move the head_sn
back to 2048
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The solution with the worker still had a bug, as in order
to get sta, rcu_read_lock should be used and thus no mutex
can be used inside iwl_mvm_rs_rate_init.
Also, spin_lock is a simpler solution, no need to spawn a
dedicated worker.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The only place where the command was sent as SYNC is during
init and this is not really critical. This change is required
for replacing RS mutex with a spinlock (in the subsequent patch),
since SYNC comamnd requres sleeping and thus the flow cannot
be done when holding a spinlock.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The comparison of the u32 variable wgds_tbl_idx with less than zero is
always going to be false because it is unsigned. Fix this by making
wgds_tbl_idx a plain signed int.
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 4fd445a2c855 ("iwlwifi: mvm: Add log information about SAR status")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This code clearly never could have worked, since it locks
while already locked. Add an unlocked __iwl_mvm_mac_set_key()
variant that doesn't do locking to fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The driver should call iwl_dbg_tlv_free even if debugfs is not defined
since ini mode does not depend on debugfs ifdef.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: 68f6f492c4fa ("iwlwifi: trans: support loading ini TLVs from external file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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ini debug mode should work even if debug override is not defined.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: 68f6f492c4fa ("iwlwifi: trans: support loading ini TLVs from external file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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iwl_mvm_rs_tx_status can be called from two places in the code, but the
mutex is taken only on one of the calls. Split it into a wrapper taking
locks and an internal __iwl_mvm_rs_tx_status function.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to support MSI-X efficiently, we want to avoid
communication across Rx queues. Each Rx queue should have
all the data it needs to process a packet.
The reordering buffer is a challenge in the MSI-X world
since we can have a single BA session whose packets are
directed to different queues. This is why each queue has
its own reordering buffer. The hardware is able to hint
the driver whether we have a hole or not, which allows
the driver to know whether it can release a packet or not.
This indication is called NSSN. Roughly, if the packet's
SN is lower than the NSSN, we can release the packet to
the stack. The NSSN is the SN of the newest packet received
without any holes + 1.
This is working as long as we don't have packets that we
release because of a timeout. When that happens, we could
have taken the decision to release a packet after we have
been waiting for its predecessor for too long. If this
predecessor comes later, we have to drop it because we
can't release packets out of order. In that case, the
hardware will give us an indication that we can we release
the packet (SN < NSSN), but the packet still needs to be
dropped.
This is why we sometimes need to ignore the NSSN and we
track the head_sn in software.
Here is a specific example of this:
1) Rx queue 1 got packets: 480, 482, 483
2) We release 480 to to the stack and wait for 481
3) NSSN is now 481
4) The timeout expires
5) We release 482 and 483, NSSN is still 480
6) 481 arrives its NSSN is 484.
We need to drop 481 even if 481 < 484. This is why we'll
update the head_sn to 484 at step 2. The flow now is:
1) Rx queue 1 got packets: 480, 482, 483
2) We release 480 to to the stack and wait for 481
3) NSSN is now 481 / head_sn is 481
4) The timeout expires
5) We release 482 and 483, NSSN is still 480 but head_sn is 484.
6) 481 arrives its NSSN is 484, but head_sn is 484 and we drop it.
This code introduces another problem in case all the traffic
goes well (no hole, no timeout):
Rx queue 1: 0 -> 483 (head_sn = 484)
Rx queue 2: 501 -> 4095 (head_sn = 0)
Rx queue 2: 0 -> 480 (head_sn = 481)
Rx queue 1: 481 but head_sn = 484 and we drop it.
At this point, the SN of queue 1 is far behind: more than
4040 packets behind. Queue 1 will consider 481 "old"
because 481 is in [501-64:501] whereas it is a very new
packet.
In order to fix that, send an Rx notification from time to
time (twice across the full set of 4096 packets) to make
sure no Rx queue is lagging too far behind.
What will happen then is:
Rx queue 1: 0 -> 483 (head_sn = 484)
Rx queue 2: 501 -> 2047 (head_sn = 2048)
Rx queue 1: Sync nofication (head_sn = 2048)
Rx queue 2: 2048 -> 4095 (head_sn = 0)
Rx queue 1: Sync notification (head_sn = 0)
Rx queue 2: 1 -> 481 (head_sn = 482)
Rx queue 1: 481 and head_sn = 0.
In queue 1's data, head_sn is now 0, the packet coming in
is 481, it'll understand that the new packet is new and it
won't be dropped.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Instead of allocating memory for which we have an upper
limit, use a small buffer on stack.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We will soon be using a new notification that will be
initiated by the driver, sent to the firmware and sent
back to all the RSS queues by the firmware. This new
notification will be useful to synchronize the NSSN across
all the queues.
For now, don't send the notification, just add the code to
handle it. Later patch will add the code to actually send
it.
While at it, validate the baid coming from the firmware to
avoid accessing an array with a bad index in the driver.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We will need a new type of synchronization message going
through all the RSS queues. Prepare the ground for this.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Firmware versions before 41 don't support the GEO_TX_POWER_LIMIT
command, and sending it to the firmware will cause a firmware crash.
We allow this via debugfs, so we need to return an error value in case
it's not supported.
This had already been fixed during init, when we send the command if
the ACPI WGDS table is present. Fix it also for the other,
userspace-triggered case.
Cc: stable@vger.kernel.org
Fixes: 7fe90e0e3d60 ("iwlwifi: mvm: refactor geo init")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Rate perform uses the lq_sta table to calculate the next rate to scale
while rate init resets the same table,
Rate perform is done in soft irq context in parallel to rate init
that can be called in case we are doing changes like AP changes BW
or moving state for auth to assoc.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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On older NICs, we occasionally see issues with A-MSDU support,
where the commands in the FIFO get confused and then we see an
assert EDC because the next command in the FIFO isn't TX.
We've tried to isolate this issue and understand where it comes
from, but haven't found any errors in building the A-MSDU in
software.
At least for now, disable A-MSDU support on older hardware so
that users can use it again without fearing the assert.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=203315.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Commit 63d7ef36103d ("mwifiex: Don't abort on small, spec-compliant
vendor IEs") adjusted the ieee_types_vendor_header struct, which
inadvertently messed up the offsets used in
mwifiex_is_wpa_oui_present(). Add that offset back in, mirroring
mwifiex_is_rsn_oui_present().
As it stands, commit 63d7ef36103d breaks compatibility with WPA (not
WPA2) 802.11n networks, since we hit the "info: Disable 11n if AES is
not supported by AP" case in mwifiex_is_network_compatible().
Fixes: 63d7ef36103d ("mwifiex: Don't abort on small, spec-compliant vendor IEs")
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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be_process_mcc() is invoked in 3 different places and
always with BHs disabled except the be_poll function
but since it's invoked from softirq with BHs
disabled it won't hurt.
v1->v2: added explanation to the patch
v2->v3: add a missing call from be_cmds.c
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A call to 'kfree_skb()' is missing in the error handling path of
'init_one()'.
This is already present in 'remove_one()' but is missing here.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sun4i-emac uses the "phy" property to find the PHY it's supposed to
use. This property was deprecated in favor of "phy-handle" in commit
8c5b09447625 ("dt-bindings: net: sun4i-emac: Convert the binding to a
schemas").
Add support for this new property name, and fall back to the old one in
case the device tree hasn't been updated.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2019-08-02
this is a pull request of 4 patches for net/master.
The first two patches are by Wang Xiayang, they force that the string buffer
during a dev_info() is properly NULL terminated.
The last two patches are by Tomas Bortoli and fix both a potential info leak of
kernel memory to USB devices.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Uninitialized Kernel memory can leak to USB devices.
Fix by using kzalloc() instead of kmalloc() on the affected buffers.
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+d6a5a1a3657b596ef132@syzkaller.appspotmail.com
Fixes: f14e22435a27 ("net: can: peak_usb: Do not do dma on the stack")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Uninitialized Kernel memory can leak to USB devices.
Fix by using kzalloc() instead of kmalloc() on the affected buffers.
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+513e4d0985298538bf9b@syzkaller.appspotmail.com
Fixes: 0a25e1f4f185 ("can: peak_usb: add support for PEAK new CANFD USB adapters")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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strncpy() does not ensure NULL-termination when the input string size
equals to the destination buffer size IFNAMSIZ. The output string is
passed to dev_info() which relies on the NULL-termination.
Use strlcpy() instead.
This issue is identified by a Coccinelle script.
Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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strncpy() does not ensure NULL-termination when the input string size
equals to the destination buffer size IFNAMSIZ. The output string
'name' is passed to dev_info which relies on NULL-termination.
Use strlcpy() instead.
This issue is identified by a Coccinelle script.
Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Orion5.x systems are still using machine files and not device-tree.
Commit 96cb4342382290c9 ("net: mvmdio: allow up to three clocks to be
specified for orion-mdio") has replaced devm_clk_get() with of_clk_get(),
leading to a oops at boot and not working network, as reported in
https://lists.debian.org/debian-arm/2019/07/msg00088.html and possibly in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908712.
Link: https://lists.debian.org/debian-arm/2019/07/msg00088.html
Fixes: 96cb4342382290c9 ("net: mvmdio: allow up to three clocks to be specified for orion-mdio")
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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desc_cnt and data_cnt should always be equal. In the case of a dropped
packet desc_cnt was still getting updated (correctly), data_cnt
was not. To eliminate this bug and prevent it from recurring this
patch combines them into one ring level cnt.
Signed-off-by: Catherine Sullivan <csully@google.com>
Reviewed-by: Sagi Shahar <sagis@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit 069d11465a80 ("net/mlx5e: RX, Enhance legacy Receive Queue
memory scheme") introduced an undefined behaviour below due to
"frag->last_in_page" is only initialized in mlx5e_init_frags_partition()
when,
if (next_frag.offset + frag_info[f].frag_stride > PAGE_SIZE)
or after bailed out the loop,
for (i = 0; i < mlx5_wq_cyc_get_size(&rq->wqe.wq); i++)
As the result, there could be some "frag" have uninitialized
value of "last_in_page".
Later, get_frag() obtains those "frag" and check "frag->last_in_page" in
mlx5e_put_rx_frag() and triggers the error during boot. Fix it by always
initializing "frag->last_in_page" to "false" in
mlx5e_init_frags_partition().
UBSAN: Undefined behaviour in
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c:325:12
load of value 170 is not a valid value for type 'bool' (aka '_Bool')
Call trace:
dump_backtrace+0x0/0x264
show_stack+0x20/0x2c
dump_stack+0xb0/0x104
__ubsan_handle_load_invalid_value+0x104/0x128
mlx5e_handle_rx_cqe+0x8e8/0x12cc [mlx5_core]
mlx5e_poll_rx_cq+0xca8/0x1a94 [mlx5_core]
mlx5e_napi_poll+0x17c/0xa30 [mlx5_core]
net_rx_action+0x248/0x940
__do_softirq+0x350/0x7b8
irq_exit+0x200/0x26c
__handle_domain_irq+0xc8/0x128
gic_handle_irq+0x138/0x228
el1_irq+0xb8/0x140
arch_cpu_idle+0x1a4/0x348
do_idle+0x114/0x1b0
cpu_startup_entry+0x24/0x28
rest_init+0x1ac/0x1dc
arch_call_rest_init+0x10/0x18
start_kernel+0x4d4/0x57c
Fixes: 069d11465a80 ("net/mlx5e: RX, Enhance legacy Receive Queue memory scheme")
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We have to drop the adjust_link callback in order to finally migrate to
phylink.
Otherwise we get the following warning during startup:
"mv88e6xxx 2188000.ethernet-1:10: Using legacy PHYLIB callbacks. Please
migrate to PHYLINK!"
The warning is generated in the function dsa_port_link_register_of in
dsa/port.c:
int dsa_port_link_register_of(struct dsa_port *dp)
{
struct dsa_switch *ds = dp->ds;
if (!ds->ops->adjust_link)
return dsa_port_phylink_register(dp);
dev_warn(ds->dev,
"Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n");
[...]
}
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix two reset-gpio sanity checks which were never converted to use
gpio_is_valid(), and make sure to use -EINVAL to indicate a missing
reset line also for the UART-driver module parameter and for the USB
driver.
This specifically prevents the UART and USB drivers from incidentally
trying to request and use gpio 0, and also avoids triggering a WARN() in
gpio_to_desc() during probe when no valid reset line has been specified.
Fixes: e33a3f84f88f ("NFC: nfcmrvl: allow gpio 0 for reset signalling")
Reported-by: syzbot+cf35b76f35e068a1107f@syzkaller.appspotmail.com
Tested-by: syzbot+cf35b76f35e068a1107f@syzkaller.appspotmail.com
Signed-off-by: Johan Hovold <johan@kernel.org>
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