| Commit message (Collapse) | Author | Age | Files | Lines |
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/pasemi/pasemi_mac.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
code in drivers/net/ethernet/natsemi/
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/micrel/ks8851_mll.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/lantiq_etop.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/hp/hp100.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/freescale/fec_main.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the already existing pm_cap variable in struct pci_dev for
determining the power management offset. This saves the driver from
having to keep track of an extra variable.
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cc: Nithin Nayak Sujir <nsujir@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the already existing pm_cap variable in struct pci_dev for
determining the power management offset. This saves the driver from
having to keep track of an extra variable.
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cc: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pci_enable_device_mem() will set device power state to D0,
so it's no need to do it again in alx_probe().
Also remove redundant PM Cap find code, because pci core
has been saved the pci device pm cap value.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Antonio Alecrim Jr <antonio.alecrim@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoid unneeded local string buffers for constructing debug output. Also
cleans up debug calls that contain a single parameter so that they cannot
be accidentally parsed as format strings.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Libo Chen <libo.chen@huawei.com>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to ixgbe and e1000e.
Jacob provides a ixgbe patch to fix the configure_rx patch to properly
disable RSC hardware logic when a user disables it. Previously we only
disabled RSC in the queue settings, but this does not fully disable
hardware RSC logic which can lead to unexpected performance issues.
Emil provides three fixes for ixgbe. First fixes the ethtool loopback
test when DCB is enabled, where the frames may be modified on Tx
(by adding VLAN tag) which will fail the check on receive. Then a fix
for QSFP+ modules, limit the speed setting to advertise only one speed
at a time since the QSFP+ modules do not support auto negotiation.
Lastly, resolve an issue where the driver will display incorrect info
for QSFP+ modules that were inserted after the driver has been loaded.
David Ertman provides to fixes for e1000e, one removes a comparison to
the boolean value true where evaluating the lvalue will produce the
same result. The other fixes an error in the calculation of the
rar_entry_count, which causes a write of unkown/undefined register
space in the MAC to unknown/undefined register space in the PHY.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When copying the MAC RAR registers to PHY there is an error in the
calculation of the rar_entry_count, which causes a write of unknown/
undefined register space in the MAC to unknown/undefined register space in
the PHY.
This patch fixes the overrun with writing to the PHY RAR and also fixes the
ethtool offline register tests so that the correctly addressed registers
have the appropriate bitmasks for R/W and RO bits for affected parts.
Shawn Rader gets credit for finding and fixing the register overrun.
Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
CC: Shawn Rader <shawn.t.rader@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Removing a comparison to the boolean value true where simply interrogating
the lvalue will produce the same result.
Signed-off-by: David Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch resolves an issue where the driver will display incorrect info
for Q/SFP+ modules that were inserted after the driver has been loaded.
This patch adds a call to identify_phy() in ixgbe_get_settings() prior to
calling get_link_capabilities() which needs the PHY data in order to
determine the correct settings.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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QSFP+ modules do not support auto negotiation and should advertise only
one speed at a time.
This patch adds logic in ethtool to allow setting and reporting the
advertised speed at either 1Gbps or 10Gbps, but not both. Also limits
the speed set in ixgbe_sfp_link_config_subtask() to highest supported.
Previously the link was set to whatever the supported speeds were.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch disables DCB prior to running the loopback test.
When DCB is enabled the frames may be modified on Tx (by adding vlan tag)
which will fail the check on Rx.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Jack Morgan <jack.morgan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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This patch modifies the configure_rx path in order to properly disable RSC
hardware logic when the user disables it. Previously we only disabled RSC in the
queue settings, but this does not fully disable hardware RSC logic which can
lead to some unexpected performance issues.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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If rx_urb allocation fails in mcs_setup_urbs(), tx_urb leaks.
If mcs_receive_start() fails in mcs_net_open(), the both urbs are not deallocated.
The patch fixes the issues and by the way fixes label indentation.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the device is down, CQs are freed. We must check the device state
to avoid issuing firmware commands on non existing CQs.
CC: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/dec/tulip/de4x5.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/amd/sun3lance.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/ibm/ehea/ehea_main.c
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/adi/bfin_mac.c.
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a VM is providing an iSCSI target and the LUN is used by the
backend domain, the generated skbs for direct I/O writes to the disk
have large, multi-page skb->data but no frags.
With some lengths and starting offsets, xen_netbk_count_skb_slots()
would be one short because the simple calculation of
DIV_ROUND_UP(skb_headlen(), PAGE_SIZE) was not accounting for the
decisions made by start_new_rx_buffer() which does not guarantee
responses are fully packed.
For example, a skb with length < 2 pages but which spans 3 pages would
be counted as requiring 2 slots but would actually use 3 slots.
skb->data:
| 1111|222222222222|3333 |
Fully packed, this would need 2 slots:
|111122222222|22223333 |
But because the 2nd page wholy fits into a slot it is not split across
slots and goes into a slot of its own:
|1111 |222222222222|3333 |
Miscounting the number of slots means netback may push more responses
than the number of available requests. This will cause the frontend
to get very confused and report "Too many frags/slots". The frontend
never recovers and will eventually BUG.
Fix this by counting the number of required slots more carefully. In
xen_netbk_count_skb_slots(), more closely follow the algorithm used by
xen_netbk_gop_skb() by introducing xen_netbk_count_frag_slots() which
is the dry-run equivalent of netbk_gop_frag_copy().
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 989038e217e94161862a959e82f9a1ecf8dda152 ("tg3: Don't turn off
led on 5719 serdes port 0") added code to skip turning led off on port
0 of the 5719 since it powered down other ports. This workaround needs
to be enabled on the 5720 as well.
Cc: stable@vger.kernel.org
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit c8d68e6be1c3b242f1c598595830890b65cea64a
(tuntap: multiqueue support) only call free_netdev() on error in
tun_set_iff(). This causes several issues:
- memory of tun security were leaked
- use after free since the flow gc timer was not deleted and the tfile
were not detached
This patch solves the above issues.
Reported-by: Wannes Rombouts <wannes.rombouts@epitech.eu>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This makes sure a format string cannot accidentally leak into the
kthread_run() call.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Flow control is defined in the four EEPROM sections but the driver only reads
from section 0.
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes a problem where some ports can fail to initialize on a
cold boot. This patch adds an additional call to read the PHY id for i354
devices in order workaround the hardware problem.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
This is a pull request for a few early fixes for the 3.12 stream.
Alexey Khoroshilov corrects a use-after-free issue on rtl8187 found
by the Linux Driver Verification project.
Arend van Spriel provides a brcmfmac patch to fix a build issue
reported by Randy Dunlap.
Hauke Mehrtens offers a bcma fix to properly account for the storage
width of error code values before checking them.
Solomon Peachy brings a pair of cw1200 fixes to avoid hangs in that
driver with SPI devices. One avoids transfers in interrupt context,
the other fixes a locking issue.
Stanislaw Gruszka changes the initialization of the rt2800 driver to
avoid a freeze, addressing a bug in the Red Hat bugzilla.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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My commit
commit c630ccf1a127578421a928489d51e99c05037054
Author: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat Mar 16 19:19:46 2013 +0100
rt2800: rearrange bbp/rfcsr initialization
make Maxim machine freeze when try to start wireless device.
Initialization order and sending MCU_BOOT_SIGNAL request, changed in
above commit, is important. Doing things incorrectly make PCIe bus
problems, which can froze the machine.
This patch change initialization sequence like vendor driver do:
function NICInitializeAsic() from
2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO (PCI devices) and
DPO_RT5572_LinuxSTA_2.6.1.3_20121022 (according Mediatek, latest driver
for RT8070/RT3070/RT3370/RT3572/RT5370/RT5372/RT5572 USB devices).
It fixes freezes on Maxim system.
Resolve:
https://bugzilla.redhat.com/show_bug.cgi?id=1000679
Reported-and-tested-by: Maxim Polyakov <polyakov@dexmalabs.com>
Bisected-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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On most 64 Bit systems unsigned long is 64 bit long and then -MAX_ERRNO
is out of the range of a u32 used to store the error code in.
This patch casts the -MAX_ERRNO to a u32 instead.
This fixes a regression introduced in:
commit fd4edf197544bae1c77d84bad354aa7ce1d08ce1
Author: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon Jul 15 13:15:08 2013 +0200
bcma: fix handling of big addrl
Reported-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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In case of __dev_alloc_skb() failure rtl8187_init_urbs()
calls usb_free_urb(entry) where 'entry' can points to urb
allocated at the previous iteration. That means refcnt will be
decremented incorrectly and the urb can be used after memory
deallocation.
The patch fixes the issue and implements error handling of init_urbs
in rtl8187_start().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The kernel configuration for the driver could result in
compilation issues as reported by Randy Dunlap. His results
are show below:
"on x86_64:
when
CONFIG_MMC=m
CONFIG_BRCMUTIL=y
CONFIG_BRCMFMAC=y
CONFIG_BRCMFMAC_SDIO=y
This bool kconfig symbol:
config BRCMFMAC_SDIO
bool "SDIO bus interface support for FullMAC driver"
depends on MMC
allows BRCMFMAC_SDIO to be y even when MMC=m.
Is there a reasonable solution to this?
This causes many build errors:
drivers/built-in.o: In function `brcmf_sdio_assert_info':
dhd_sdio.c:(.text+0x39609b): undefined reference to `sdio_claim_host'
dhd_sdio.c:(.text+0x3960d9): undefined reference to `sdio_release_host'
drivers/built-in.o: In function `brcmf_sdio_readframes':
dhd_sdio.c:(.text+0x396a62): undefined reference to `sdio_claim_host'
dhd_sdio.c:(.text+0x396a9b): undefined reference to `sdio_release_host'
..."
This patch adds the appropriate logic in Kconfig to resolve
these issues. The solution was provided by Hauke Mehrtens.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The cw1200_spi driver tries to mirror the cw1200_sdio driver's lock
API, which relies on sdio_claim_host/sdio_release_host to serialize
hardware operations across multiple threads.
Unfortunately the implementation was flawed, as it lacked a way to wake
up the lock requestor when there was contention, often resulting in a
hang.
This problem was uncovered while trying to fix the
spi-transfers-in-interrupt-context BUG() corrected in the previous
patch. Many thanks to Dave Sizeburns for his assistance in fixing this.
Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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When we get an interrupt from the hardware, the first thing the driver does
is tell the device to mask off the interrupt line. Unfortunately this
involves a SPI transaction in interrupt context. Some (most?) SPI
controllers perform the transfer asynchronously and try to sleep.
This is bad, and triggers a BUG().
So, work around this by using adding a hwbus hook for the cw1200 driver
core to call. The cw1200_spi driver translates this into
irq_disable()/irq_enable() calls instead, which can safely be called in
interrupt context.
Apparently the platforms I used to develop the cw1200_spi driver used
synchronous spi_sync() implementations, which is why this didn't surface
until now.
Many thanks to Dave Sizeburns for the inital bug report and his services
as a tester.
Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Same narrative as eb2dc35d99028b698cdedba4f5522bc43e576bd2 ("r8169: RxConfig
hack for the 8168evl.") regarding AMD IOMMU errors.
RTL_GIGA_MAC_VER_36 - 8168f as well - has not been reported to behave the
same.
Tested-by: David R <david@unsolicited.net>
Tested-by: Frédéric Leroy <fredo@starox.org>
Cc: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull MIPS updates from Ralf Baechle:
- Minor updates and fixes to the Octeon ethernet driver in staging
- A fix to VGA_MAP_MEM() for 64 bit platforms
- Fix a workaround for 74K/1074K processors
- The symlink arch/mips/boot/dts/include/dt-bindings was pointing to a
a file with a name ending in \n. I think this may have been caused
by a git bug with with patches sent by email
- A build fix for VGA console on BCM1480-based systems
- Fix PCI device access via "/sys/bus/pci/.../resource0" or similar
work for Alchemy platforms
- Fix potential data leak on MIPS R5 cores. This doesn't add proper
support for any R5 features, just ensures a kernel without such
support will be secure to run
- Adding a macros for the CP0 Config5 register to be used by the R5 fix
- Make get_cycles() actually return something useful where possible
This also requires a preparatory patch for performance sake
- Fix a warning about the use of smp_processor_id() in preemptible
code. Again this includes a preparatory patch adding the
infrastructure to be used by the actual patch
- Finally remove pointless one-line comment
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Fix invalid symbolic link file
MIPS: PCI: pci-bcm1480: Include missing vt.h header
MIPS: Disable usermode switching of the FR bit for MIPS R5 CPUs.
MIPS: Add MIPS R5 config5 register.
MIPS: PCI: Use pci_resource_to_user to map pci memory space properly
MIPS: 74K/1074K: Correct erratum workaround.
MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks
MIPS: Remove useless comment about kprobe from arch/mips/Makefile
MIPS: Fix VGA_MAP_MEM macro.
MIPS: Reimplement get_cycles().
MIPS: Optimize current_cpu_type() for better code.
MIPS: Fix accessing to per-cpu data when flushing the cache
MIPS: Provide nice way to access boot CPU's data.
staging: octeon-ethernet: rgmii: enable interrupts that we can handle
staging: octeon-ethernet: remove skb alloc failure warnings
staging: octeon-ethernet: make dropped packets to consume NAPI budget
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Enable only those interrupts that we can handle & acknowledge in the
interrupt handler.
At least on EdgeRouter Lite, the hardware may occasionally interrupt with
some error condition when the physical link status changes frequently.
Since the interrupt condition is not acked properly, this leads to the
following warning and the IRQ gets disabled completely:
[ 41.324700] eth0: Link down
[ 44.324721] eth0: 1000 Mbps Full duplex, port 0, queue 0
[ 44.885590] irq 117: nobody cared (try booting with the "irqpoll" option)
[ 44.892397] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-rc5-edge-los.git-27d042f-dirty-00950-gaa42f2d-dirty #8
[ 44.902825] Stack : ffffffff815c0000 0000000000000004 0000000000000003 0000000000000000
ffffffff81fd0000 ffffffff815c0000 0000000000000004 ffffffff8118530c
ffffffff815c0000 ffffffff811858d8 0000000000000000 0000000000000000
ffffffff81fd0000 ffffffff81fc0000 ffffffff8152f3a0 ffffffff815b7bf7
ffffffff81fc6688 ffffffff815b8060 0000000000000000 0000000000000000
0000000000000000 ffffffff815346c8 ffffffff815346b0 ffffffff814a6a18
ffffffff8158b848 ffffffff81145614 ffffffff81593800 ffffffff81187174
ffffffff815b7d00 ffffffff8158b760 0000000000000000 ffffffff814a9184
0000000000000000 0000000000000000 0000000000000000 0000000000000000
0000000000000000 ffffffff811203b8 0000000000000000 0000000000000000
...
[ 44.968408] Call Trace:
[ 44.970873] [<ffffffff811203b8>] show_stack+0x68/0x80
[ 44.975937] [<ffffffff814a9184>] dump_stack+0x78/0xb8
[ 44.980999] [<ffffffff811aac54>] __report_bad_irq+0x44/0x108
[ 44.986662] [<ffffffff811ab238>] note_interrupt+0x248/0x2a0
[ 44.992240] [<ffffffff811a85e4>] handle_irq_event_percpu+0x144/0x200
[ 44.998598] [<ffffffff811a86f4>] handle_irq_event+0x54/0x90
[ 45.004176] [<ffffffff811ab908>] handle_level_irq+0xd0/0x148
[ 45.009839] [<ffffffff811a7b04>] generic_handle_irq+0x34/0x50
[ 45.015589] [<ffffffff8111dae8>] do_IRQ+0x18/0x30
[ 45.020301] [<ffffffff8110486c>] plat_irq_dispatch+0x74/0xb8
[ 45.025958]
[ 45.027451] handlers:
[ 45.029731] [<ffffffff813fca10>] cvm_oct_rgmii_rml_interrupt
[ 45.035397] Disabling IRQ #117
[ 45.038742] Port 0 receive error code 13, packet dropped
[ 46.324719] eth0: Link down
[ 48.324733] eth0: 1000 Mbps Full duplex, port 0, queue 0
Reported-by: "Jason A. Donenfeld" <Jason@zx2c4.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Patchwork: https://patchwork.linux-mips.org/patch/5810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Remove skb allocation failure warnings. They will trigger a page
allocation warning already. Also, one of the warnings was not ratelimited,
causing the box to lock up under heavy traffic & low memory.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/5811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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We should count also dropped packets, otherwise the NAPI handler may
end up running too long.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: richard@nod.at
Patchwork: https://patchwork.linux-mips.org/patch/5809/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull ceph fixes from Sage Weil:
"These fix several bugs with RBD from 3.11 that didn't get tested in
time for the merge window: some error handling, a use-after-free, and
a sequencing issue when unmapping and image races with a notify
operation.
There is also a patch fixing a problem with the new ceph + fscache
code that just went in"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
fscache: check consistency does not decrement refcount
rbd: fix error handling from rbd_snap_name()
rbd: ignore unmapped snapshots that no longer exist
rbd: fix use-after free of rbd_dev->disk
rbd: make rbd_obj_notify_ack() synchronous
rbd: complete notifies before cleaning up osd_client and rbd_dev
libceph: add function to ensure notifies are complete
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rbd_snap_name() calls rbd_dev_v{1,2}_snap_name() depending on the
format of the image. The format 1 version returns NULL on error, which
is handled by the caller. The format 2 version returns an ERR_PTR,
which the caller of rbd_snap_name() does not expect.
Fortunately this is unlikely to occur in practice because
rbd_snap_id_by_name() is called before rbd_snap_name(). This would hit
similar errors to rbd_snap_name() (like the snapshot not existing) and
return early, so rbd_snap_name() would not hit an error unless the
snapshot was removed between the two calls or memory was exhausted.
Use an ERR_PTR in rbd_dev_v1_snap_name() so that the specific error
can be propagated, and it is consistent with rbd_dev_v2_snap_name().
Handle the ERR_PTR in the only rbd_snap_name() caller.
Suggested-by: Alex Elder <alex.elder@linaro.org>
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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This prevents erroring out while adding a device when a snapshot
unrelated to the current mapping is deleted between reading the
snapshot context and reading the snapshot names. If the mapped
snapshot name is not found an error still occurs as usual.
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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Removing a device deallocates the disk, unschedules the watch, and
finally cleans up the rbd_dev structure. rbd_dev_refresh(), called
from the watch callback, updates the disk size and rbd_dev
structure. With no locking between them, rbd_dev_refresh() may use the
device or rbd_dev after they've been freed.
To fix this, check whether RBD_DEV_FLAG_REMOVING is set before
updating the disk size in rbd_dev_refresh(). In order to prevent a
race where rbd_dev_refresh() is already revalidating the disk when
rbd_remove() is called, move the call to rbd_bus_del_dev() after the
watch is unregistered and all notifies are complete. It's safe to
defer deleting this structure because no new requests can be submitted
once the RBD_DEV_FLAG_REMOVING is set, since the device cannot be
opened.
Fixes: http://tracker.ceph.com/issues/5636
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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The only user of rbd_obj_notify_ack() is rbd_watch_cb(). It used
asynchronously with no tracking of when the notify ack completes, so
it may still be in progress when the osd_client is shut down. This
results in a BUG() since the osd client assumes no requests are in
flight when it stops. Since all notifies are flushed before the
osd_client is stopped, waiting for the notify ack to complete before
returning from the watch callback ensures there are no notify acks in
flight during shutdown.
Rename rbd_obj_notify_ack() to rbd_obj_notify_ack_sync() to reflect
its new synchronous nature.
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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To ensure rbd_dev is not used after it's released, flush all pending
notify callbacks before calling rbd_dev_image_release(). No new
notifies can be added to the queue at this point because the watch has
already be unregistered with the osd_client.
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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