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  1. 10 11月, 2019 6 次提交
    • D
      net: usb: lan78xx: Disable interrupts before calling generic_handle_irq() · 9da271c1
      由 Daniel Wagner 提交于 
      [ Upstream commit 0a29ac5bd3a988dc151c8d26910dec2557421f64 ]

lan78xx_status() will run with interrupts enabled due to the change in
ed194d136769 ("usb: core: remove local_irq_save() around ->complete()
handler"). generic_handle_irq() expects to be run with IRQs disabled.

[    4.886203] 000: irq 79 handler irq_default_primary_handler+0x0/0x8 enabled interrupts
[    4.886243] 000: WARNING: CPU: 0 PID: 0 at kernel/irq/handle.c:152 __handle_irq_event_percpu+0x154/0x168
[    4.896294] 000: Modules linked in:
[    4.896301] 000: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.6 #39
[    4.896310] 000: Hardware name: Raspberry Pi 3 Model B+ (DT)
[    4.896315] 000: pstate: 60000005 (nZCv daif -PAN -UAO)
[    4.896321] 000: pc : __handle_irq_event_percpu+0x154/0x168
[    4.896331] 000: lr : __handle_irq_event_percpu+0x154/0x168
[    4.896339] 000: sp : ffff000010003cc0
[    4.896346] 000: x29: ffff000010003cc0 x28: 0000000000000060
[    4.896355] 000: x27: ffff000011021980 x26: ffff00001189c72b
[    4.896364] 000: x25: ffff000011702bc0 x24: ffff800036d6e400
[    4.896373] 000: x23: 000000000000004f x22: ffff000010003d64
[    4.896381] 000: x21: 0000000000000000 x20: 0000000000000002
[    4.896390] 000: x19: ffff8000371c8480 x18: 0000000000000060
[    4.896398] 000: x17: 0000000000000000 x16: 00000000000000eb
[    4.896406] 000: x15: ffff000011712d18 x14: 7265746e69206465
[    4.896414] 000: x13: ffff000010003ba0 x12: ffff000011712df0
[    4.896422] 000: x11: 0000000000000001 x10: ffff000011712e08
[    4.896430] 000: x9 : 0000000000000001 x8 : 000000000003c920
[    4.896437] 000: x7 : ffff0000118cc410 x6 : ffff0000118c7f00
[    4.896445] 000: x5 : 000000000003c920 x4 : 0000000000004510
[    4.896453] 000: x3 : ffff000011712dc8 x2 : 0000000000000000
[    4.896461] 000: x1 : 73a3f67df94c1500 x0 : 0000000000000000
[    4.896466] 000: Call trace:
[    4.896471] 000:  __handle_irq_event_percpu+0x154/0x168
[    4.896481] 000:  handle_irq_event_percpu+0x50/0xb0
[    4.896489] 000:  handle_irq_event+0x40/0x98
[    4.896497] 000:  handle_simple_irq+0xa4/0xf0
[    4.896505] 000:  generic_handle_irq+0x24/0x38
[    4.896513] 000:  intr_complete+0xb0/0xe0
[    4.896525] 000:  __usb_hcd_giveback_urb+0x58/0xd8
[    4.896533] 000:  usb_giveback_urb_bh+0xd0/0x170
[    4.896539] 000:  tasklet_action_common.isra.0+0x9c/0x128
[    4.896549] 000:  tasklet_hi_action+0x24/0x30
[    4.896556] 000:  __do_softirq+0x120/0x23c
[    4.896564] 000:  irq_exit+0xb8/0xd8
[    4.896571] 000:  __handle_domain_irq+0x64/0xb8
[    4.896579] 000:  bcm2836_arm_irqchip_handle_irq+0x60/0xc0
[    4.896586] 000:  el1_irq+0xb8/0x140
[    4.896592] 000:  arch_cpu_idle+0x10/0x18
[    4.896601] 000:  do_idle+0x200/0x280
[    4.896608] 000:  cpu_startup_entry+0x20/0x28
[    4.896615] 000:  rest_init+0xb4/0xc0
[    4.896623] 000:  arch_call_rest_init+0xc/0x14
[    4.896632] 000:  start_kernel+0x454/0x480

Fixes: ed194d136769 ("usb: core: remove local_irq_save() around ->complete() handler")
Cc: Woojung Huh <woojung.huh@microchip.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Stefan Wahren <wahrenst@gmx.net>
Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NDaniel Wagner <dwagner@suse.de>
Tested-by: NStefan Wahren <wahrenst@gmx.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      9da271c1
    • E
      net/mlx4_core: Dynamically set guaranteed amount of counters per VF · 1d72dbb4
      由 Eran Ben Elisha 提交于 
      [ Upstream commit e19868efea0c103f23b4b7e986fd0a703822111f ]

Prior to this patch, the amount of counters guaranteed per VF in the
resource tracker was MLX4_VF_COUNTERS_PER_PORT * MLX4_MAX_PORTS. It was
set regardless if the VF was single or dual port.
This caused several VFs to have no guaranteed counters although the
system could satisfy their request.

The fix is to dynamically guarantee counters, based on each VF
specification.

Fixes: 9de92c60 ("net/mlx4_core: Adjust counter grant policy in the resource tracker")
Signed-off-by: NEran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: NJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      1d72dbb4
    • J
      net: hisilicon: Fix ping latency when deal with high throughput · f05975d9
      由 Jiangfeng Xiao 提交于 
      [ Upstream commit e56bd641ca61beb92b135298d5046905f920b734 ]

This is due to error in over budget processing.
When dealing with high throughput, the used buffers
that exceeds the budget is not cleaned up. In addition,
it takes a lot of cycles to clean up the used buffer,
and then the buffer where the valid data is located can take effect.
Signed-off-by: NJiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      f05975d9
    • B
      net: ethernet: ftgmac100: Fix DMA coherency issue with SW checksum · 189982d1
      由 Benjamin Herrenschmidt 提交于 
      [ Upstream commit 88824e3bf29a2fcacfd9ebbfe03063649f0f3254 ]

We are calling the checksum helper after the dma_map_single()
call to map the packet. This is incorrect as the checksumming
code will touch the packet from the CPU. This means the cache
won't be properly flushes (or the bounce buffering will leave
us with the unmodified packet to DMA).

This moves the calculation of the checksum & vlan tags to
before the DMA mapping.

This also has the side effect of fixing another bug: If the
checksum helper fails, we goto "drop" to drop the packet, which
will not unmap the DMA mapping.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fixes: 05690d63 ("ftgmac100: Upgrade to NETIF_F_HW_CSUM")
Reviewed-by: NVijay Khemka <vijaykhemka@fb.com>
Tested-by: NVijay Khemka <vijaykhemka@fb.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      189982d1
    • F
      net: dsa: bcm_sf2: Fix IMP setup for port different than 8 · 5536fc89
      由 Florian Fainelli 提交于 
      [ Upstream commit 5fc0f21246e50afdf318b5a3a941f7f4f57b8947 ]

Since it became possible for the DSA core to use a CPU port different
than 8, our bcm_sf2_imp_setup() function was broken because it assumes
that registers are applicable to port 8. In particular, the port's MAC
is going to stay disabled, so make sure we clear the RX_DIS and TX_DIS
bits if we are not configured for port 8.

Fixes: 9f91484f ("net: dsa: make "label" property optional for dsa2")
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5536fc89
    • V
      cxgb4: fix panic when attaching to ULD fail · f291613f
      由 Vishal Kulkarni 提交于 
      [ Upstream commit fc89cc358fb64e2429aeae0f37906126636507ec ]

Release resources when attaching to ULD fail. Otherwise, data
mismatch is seen between LLD and ULD later on, which lead to
kernel panic when accessing resources that should not even
exist in the first place.

Fixes: 94cdb8bb ("cxgb4: Add support for dynamic allocation of resources for ULD")
Signed-off-by: NShahjada Abul Husain <shahjada@chelsio.com>
Signed-off-by: NVishal Kulkarni <vishal@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      f291613f
  3. 06 11月, 2019 9 次提交
  5. 29 10月, 2019 11 次提交
  7. 12 10月, 2019 3 次提交
  9. 08 10月, 2019 6 次提交
    • D
      xen-netfront: do not use ~0U as error return value for xennet_fill_frags() · a1afd826
      由 Dongli Zhang 提交于 
      [ Upstream commit a761129e3625688310aecf26e1be9e98e85f8eb5 ]

xennet_fill_frags() uses ~0U as return value when the sk_buff is not able
to cache extra fragments. This is incorrect because the return type of
xennet_fill_frags() is RING_IDX and 0xffffffff is an expected value for
ring buffer index.

In the situation when the rsp_cons is approaching 0xffffffff, the return
value of xennet_fill_frags() may become 0xffffffff which xennet_poll() (the
caller) would regard as error. As a result, queue->rx.rsp_cons is set
incorrectly because it is updated only when there is error. If there is no
error, xennet_poll() would be responsible to update queue->rx.rsp_cons.
Finally, queue->rx.rsp_cons would point to the rx ring buffer entries whose
queue->rx_skbs[i] and queue->grant_rx_ref[i] are already cleared to NULL.
This leads to NULL pointer access in the next iteration to process rx ring
buffer entries.

The symptom is similar to the one fixed in
commit 00b368502d18 ("xen-netfront: do not assume sk_buff_head list is
empty in error handling").

This patch changes the return type of xennet_fill_frags() to indicate
whether it is successful or failed. The queue->rx.rsp_cons will be
always updated inside this function.

Fixes: ad4f15dc ("xen/netfront: don't bug in case of too many frags")
Signed-off-by: NDongli Zhang <dongli.zhang@oracle.com>
Reviewed-by: NJuergen Gross <jgross@suse.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      a1afd826
    • L
      net: dsa: rtl8366: Check VLAN ID and not ports · 5c08d7e4
      由 Linus Walleij 提交于 
      [ Upstream commit e8521e53cca584ddf8ec4584d3c550a6c65f88c4 ]

There has been some confusion between the port number and
the VLAN ID in this driver. What we need to check for
validity is the VLAN ID, nothing else.

The current confusion came from assigning a few default
VLANs for default routing and we need to rewrite that
properly.

Instead of checking if the port number is a valid VLAN
ID, check the actual VLAN IDs passed in to the callback
one by one as expected.

Fixes: d8652956 ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5c08d7e4
    • R
      qmi_wwan: add support for Cinterion CLS8 devices · 7047aae6
      由 Reinhard Speyerer 提交于 
      [ Upstream commit cf74ac6db25d4002089e85cc623ad149ecc25614 ]

Add support for Cinterion CLS8 devices.
Use QMI_QUIRK_SET_DTR as required for Qualcomm MDM9x07 chipsets.

T:  Bus=01 Lev=03 Prnt=05 Port=01 Cnt=02 Dev#= 25 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1e2d ProdID=00b0 Rev= 3.18
S:  Manufacturer=GEMALTO
S:  Product=USB Modem
C:* #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Signed-off-by: NReinhard Speyerer <rspmn@arcor.de>
Acked-by: NBjørn Mork <bjorn@mork.no>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      7047aae6
    • N
      net: qlogic: Fix memory leak in ql_alloc_large_buffers · 9d0995cc
      由 Navid Emamdoost 提交于 
      [ Upstream commit 1acb8f2a7a9f10543868ddd737e37424d5c36cf4 ]

In ql_alloc_large_buffers, a new skb is allocated via netdev_alloc_skb.
This skb should be released if pci_dma_mapping_error fails.

Fixes: 0f8ab89e ("qla3xxx: Check return code from pci_map_single() in ql_release_to_lrg_buf_free_list(), ql_populate_free_queue(), ql_alloc_large_buffers(), and ql3xxx_send()")
Signed-off-by: NNavid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      9d0995cc
    • J
      hso: fix NULL-deref on tty open · a495fd19
      由 Johan Hovold 提交于 
      [ Upstream commit 8353da9fa69722b54cba82b2ec740afd3d438748 ]

Fix NULL-pointer dereference on tty open due to a failure to handle a
missing interrupt-in endpoint when probing modem ports:

	BUG: kernel NULL pointer dereference, address: 0000000000000006
	...
	RIP: 0010:tiocmget_submit_urb+0x1c/0xe0 [hso]
	...
	Call Trace:
	hso_start_serial_device+0xdc/0x140 [hso]
	hso_serial_open+0x118/0x1b0 [hso]
	tty_open+0xf1/0x490

Fixes: 542f5482 ("tty: Modem functions for the HSO driver")
Signed-off-by: NJohan Hovold <johan@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      a495fd19
    • V
      cxgb4:Fix out-of-bounds MSI-X info array access · 2b838911
      由 Vishal Kulkarni 提交于 
      [ Upstream commit 6b517374f4ea5a3c6e307e1219ec5f35d42e6d00 ]

When fetching free MSI-X vectors for ULDs, check for the error code
before accessing MSI-X info array. Otherwise, an out-of-bounds access is
attempted, which results in kernel panic.

Fixes: 94cdb8bb ("cxgb4: Add support for dynamic allocation of resources for ULD")
Signed-off-by: NShahjada Abul Husain <shahjada@chelsio.com>
Signed-off-by: NVishal Kulkarni <vishal@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      2b838911
  11. 05 10月, 2019 5 次提交