Pull assorted fixes from Al Viro:
"There'll be more - I'm trying to dig out from under the pile of mail
(a couple of weeks of something flu-like ;-/) and there's several more
things waiting for review; this is just the obvious stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
zoran: racy refcount handling in vm_ops ->open()/->close()
befs_readdir(): do not increment ->f_pos if filldir tells us to stop
hpfs: deadlock and race in directory lseek()
qnx6: qnx6_readdir() has a braino in pos calculation
fix buffer leak after "scsi: saner replacements for ->proc_info()"
vfs: Fix invalid ida_remove() call
- Fix a regression that broke NFS mounting using klibc and busybox
- Stable fix to check access modes correctly on NFSv4 delegated open()
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Merge tag 'nfs-for-3.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull two NFS client fixes from Trond Myklebust:
- Fix a regression that broke NFS mounting using klibc and busybox
- Stable fix to check access modes correctly on NFSv4 delegated open()
* tag 'nfs-for-3.10-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix security flavor negotiation with legacy binary mounts
NFSv4: Fix a thinko in nfs4_try_open_cached
- Calao boards update, removal of one board C file and
associated defconfig, Kconfig Makefile lines
- several Acme boards updates
- addition of watchdog, uart and pinctrl descriptions for
several products
- modification of RTC compatible string for 9x5 family
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Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dt
From Nicolas Ferre:
Big DT-centric update for AT91:
- Calao boards update, removal of one board C file and
associated defconfig, Kconfig Makefile lines
- several Acme boards updates
- addition of watchdog, uart and pinctrl descriptions for
several products
- modification of RTC compatible string for 9x5 family
* tag 'at91-dt' of git://github.com/at91linux/linux-at91: (21 commits)
ARM: at91/dt: add pinctrl definition for at91 tc blocks
ARM: at91/dts: add the watchdog nodes for at91 boards
ARM: at91/dtsi: add the watchdog nodes for at91 SoC
ARM: at91: drop non DT: Calao USB-A96x
ARM: at91: dt: add Calao USB-A9G20 low power version
ARM: at91: dt: usb-a9263: add dataflash support
ARM: at91: dt: usb-a9263: update shutdown controller
ARM: at91: dt: usb-a9260: update shutdown controller
ARM: at91: dt: sam9260: add i2c gpio pinctrl
ARM: at91: switch Fox G20 board .dts to pre-processor defines
ARM: at91: add Acme Systems Fox G20 board
ARM: at91/at91-ariag25.dts: UART0/1 nodes are disabled
ARM: at91/at91sam9x5.dtsi: add UART0/1 nodes
ARM: at91/at91-ariag25.dts: add RTC node
ARM: at91: at91sam9x5 RTC is not compatible with at91rm9200 one
ARM: at91: udpate defconfigs
ARM: at91: dt: switch to standard IRQ flag defines
ARM: at91: dt: switch to pinctrl to pre-processor
ARM: at91: dt: add pinctrl pre-processor define
ARM: at91: dt: switch to standard GPIO flag defines.
...
Signed-off-by: Olof Johansson <olof@lixom.net>
The clocksource API has changed slightly, which causes a harmless
warning:
/git/arm-soc/drivers/clocksource/nomadik-mtu.c:259:28: warning: 'nmdk_timer_match' defined but not used [-Wunused-variable]
static struct of_device_id nmdk_timer_match[] __initconst = {
^
Fortunately, the same API change also lets us simplify the code
while removing the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
From Nicolas Pitre:
This is the first MCPM backend submission for VExpress running on RTSM
aka Fast Models implementing the big.LITTLE system architecture. This
enables SMP secondary boot as well as CPU hotplug on this platform.
A big prerequisite for this support is the CCI driver from Lorenzo
included in this pull request.
Also included is Rob Herring's set_auxcr/get_auxcr allowing nicer code.
Signed-off-by: Olof Johansson <olof@lixom.net>
* 'VExpress_DCSCB' of git://git.linaro.org/people/nico/linux:
ARM: vexpress: Select multi-cluster SMP operation if required
ARM: vexpress/dcscb: handle platform coherency exit/setup and CCI
ARM: vexpress/dcscb: do not hardcode number of CPUs per cluster
ARM: vexpress/dcscb: add CPU use counts to the power up/down API implementation
ARM: vexpress: introduce DCSCB support
ARM: introduce common set_auxcr/get_auxcr functions
drivers/bus: arm-cci: function to enable CCI ports from early boot code
drivers: bus: add ARM CCI support
Pulling in base dependencies from rmk's devel-stable branch needed by the
CCI patches for vexpress.
Signed-off-by: Olof Johansson <olof@lixom.net>
* depends/rmk-devel-stable:
ARM: Enable selection of SMP operations at boot time
arm: introduce psci_smp_ops
ARM: ARMv7-M: implement read_cpuid_ext
ARM: ARMv7-M: Allow the building of new kernel port
ARM: ARMv7-M: Add support for exception handling
ARM: Add base support for ARMv7-M
- clk: mvebu
- reorganize by SoC to remove built up #ifdefs
- add clk flags per clock gate
Note: this branch only depends on mvebu/pcie in order to prevent managing a
tricky modify/remove file merge conflict. By rebasing on mvebu/pcie, we are
able to build the resolution into the patch series. The change is small, and
has been tested by the respective authors.
depends:
- mvebu/pcie
- mvebu/of_pci
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Merge tag 'seb_clk-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper:
mvebu clock restructuring for v3.11
- clk: mvebu
- reorganize by SoC to remove built up #ifdefs
- add clk flags per clock gate
* tag 'seb_clk-3.11' of git://git.infradead.org/users/jcooper/linux:
clk: mvebu: disintegrate obsolete file
ARM: mvebu: move DT boards to SoC-centric clock init
ARM: kirkwood: move DT boards to SoC-centric clock init
ARM: dove: move DT boards to SoC-centric clock init
clk: mvebu: add Armada XP SoC-centric clock init
clk: mvebu: add Armada 370 SoC-centric clock init
clk: mvebu: add Kirkwood SoC-centric clock init
clk: mvebu: add Dove SoC-centric clock init
clk: mvebu: add common clock functions for core clk and clk gating
clk: mvebu: introduce per-clock-gate flags
- mvebu
- allow enumeration of devices beyond physical bridges
- remove faking the slot location
- fix status register emulation
depends
- mvebu/pcie
-mvebu/of_pci
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Merge tag 'pcie_bridge-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper:
mvebu pcie driver (bridge) for v3.11
- mvebu
- allow enumeration of devices beyond physical bridges
- remove faking the slot location
- fix status register emulation
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'pcie_bridge-3.11' of git://git.infradead.org/users/jcooper/linux:
pci: mvebu: fix the emulation of the status register
pci: mvebu: allow the enumeration of devices beyond physical bridges
pci: mvebu: no longer fake the slot location of downstream devices
- kirkwood
- enable pcie driver
- migrate boards over to pcie dt init
depends
- mvebu/pcie
- mvebu/of_pci
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Merge tag 'pcie_kw-3.11' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper:
mvebu pcie driver (kirkwood) for v3.11
- kirkwood
- enable pcie driver
- migrate boards over to pcie dt init
depends
- mvebu/pcie
- mvebu/of_pci
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'pcie_kw-3.11' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: convert db-88f6281/db-88f6282 to the Device Tree
arm: kirkwood: convert QNAP TS219 to use DT for the PCIe interface
arm: kirkwood: convert ZyXEL NSA310 to use DT for the PCIe interface
arm: kirkwood: convert MPL CEC4 to use DT for the PCIe interface
arm: kirkwood: convert Iomega Iconnect to use DT for the PCIe interface
arm: kirkwood: add SoC-level Device Tree data for PCIe interfaces
arm: kirkwood: move PCIe window init to legacy driver
pci: mvebu: enable driver usage on Kirkwood
- mvebu pcie
- fix return value check in mvebu_pcie_probe()
depends
- mvebu/of_pci
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Merge tag 'pcie-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/soc
PCI-e driver for mvebu.
* tag 'pcie-3.11-2' of git://git.infradead.org/users/jcooper/linux:
pci: mvebu: fix return value check in mvebu_pcie_probe()
arm: mvebu: PCIe support is now available on mvebu
pci: PCIe driver for Marvell Armada 370/XP systems
clk: mvebu: add more PCIe clocks for Armada XP
clk: mvebu: create parent-child relation for PCIe clocks on Armada 370
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
Signed-off-by: Olof Johansson <olof@lixom.net>
- parse DT ranges property
- add of_pci_get_devfn()
- add of_pci_parse_bus_range()
Note:
- mvebu/pcie will depend on this branch
- work by LinusW and possibly Arnd will depend on this branch
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Merge tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux into next/cleanup
From Jason Cooper, of/pci changes for v3.11.
The patches had Reviewed-by: from Rob Herring on the lists, but seems to
have been missed from the commit messages. These will be required as a base
for some of the other functionality in this merge window, so taking it through
arm-soc.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'of_pci-3.11' of git://git.infradead.org/users/jcooper/linux:
of/pci: Add of_pci_parse_bus_range() function
of/pci: Add of_pci_get_devfn() function
of/pci: Provide support for parsing PCI DT ranges property
- mvebu
- enable two usb interfaces on Armada XP-GP
- kirkwood
- move pinmux configs to their individual devices
- group the pinmux configs on OpenBlocks A6
- add the Init button for the OpenBlocks A6
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Merge tag 'dt-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/dt
From jason Cooper, mvebu dt changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'dt-3.11-3' of git://git.infradead.org/users/jcooper/linux: (27 commits)
arm: kirkwood: openblocks-a6: add support for Init button
arm: kirkwood: openblocks-a6: group pinmux configurations
arm: kirkwood: ts219: move pinmux configs to the right devices
arm: kirkwood: topkick: move pinmux configs to the right devices
arm: kirkwood: openblocks_a6: move pinmux configs to the right devices
arm: kirkwood: nsa310: move pinmux configs to the right devices
arm: kirkwood: readynas: move pinmux configs to the right devices
arm: kirkwood: mplcec4: move pinmux configs to the right devices
arm: kirkwood: buffalo linkstation: move pinmux configs to the right devices
arm: kirkwood: keymile: move pinmux configs to the right devices
arm: kirkwood: ns2: move pinmux configs to the right devices
arm: kirkwood: iomega ix2-200: move pinmux configs to the right devices
arm: kirkwood: iconnect: move pinmux configs to the right devices
arm: kirkwood: iconnect: give meaningful names to pinmux configs
arm: kirkwood: ib62x0: move pinmux configs to the right devices
arm: kirkwood: guruplug: move pinmux configs to the right devices
arm: kirkwood: goflexnet: move pinmux configs to the right devices
arm: kirkwood: dreamplug: move pinmux configs to the right devices
arm: kirkwood: dockstar: move pinmux configs to the right devices
arm: kirkwood: dlink dns: move pinmux configs to the right devices
...
- kirkwood
- enable cpufreq and ondemand governor
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Merge tag 'defconfig-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper, mvebu defconfig changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'defconfig-3.11-3' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: Enable cpufreq and ondemand on kirkwood_defconfig
arm: kirkwood: update defconfig with PCIe driver and board updates
arm: mvebu: update defconfig with PCI and USB support
ARM: Kirkwood: Enable USB 3.0 in kirkwood_defconfig
ARM: kirkwood: enable Sheevaplug DT in defconfig
ARM: mvebu: Add support for USB storage class in mvebu_defconfig
- kirkwood
- QNAP use power-off driver
- LSXL use restart-poweroff driver
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Merge tag 'boards-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/boards
From Jason Cooper, mvebu board changes for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'boards-3.11-2' of git://git.infradead.org/users/jcooper/linux:
ARM: Kirkwood: Convert LSXL to restart-poweroff driver.
ARM: Kirkwood: Make use of the QNAP Power off driver.
ARM: Kirkwood: add DT support for Sheevaplug and Sheevaplug eSATA
- kirkwood
- use the cpufreq driver
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Merge tag 'soc-3.11-2' of git://git.infradead.org/users/jcooper/linux into next/soc
From Jason Cooper, mvebu soc changes for v3.11
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'soc-3.11-2' of git://git.infradead.org/users/jcooper/linux:
arm: kirkwood: Instantiate cpufreq driver
arm: kirkwood: use the default of match table
- mvebu
- mark functions in armada-370-xp.c as static
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Merge tag 'cleanup-3.11-3' of git://git.infradead.org/users/jcooper/linux into next/cleanup
From Jason Cooper, mvebu cleanup for v3.11.
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'cleanup-3.11-3' of git://git.infradead.org/users/jcooper/linux:
arm: mvebu: mark functions of armada-370-xp.c as static
ARM: mvebu: Remove init_irq declaration in machine description
ARM: Orion: Remove redundant init_dma_coherent_pool_size()
- mvebu
- fix register area length in dtsi for ethernet and sata
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Merge tag 'fixes-non-3.11-1' of git://git.infradead.org/users/jcooper/linux into next/fixes-non-critical
From Jason Cooper:
mvebu fixes non-critical for v3.11 (round 1)
- mvebu
- fix register area length in dtsi for ethernet and sata
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'fixes-non-3.11-1' of git://git.infradead.org/users/jcooper/linux:
arm: mvebu: fix length of Ethernet registers area in .dtsi
arm: mvebu: fix length of SATA registers area in .dtsi
- Patches to remove the .init_irq definition when using irqchip_init
- Make the ARM core code call debug_ll_io_init when no map_io callback is
declared
- Remove the .map_io definition in the various machines using it
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Merge tag 'arm-soc-cleanups-for-3.11' of git://github.com/mripard/linux into next/cleanup
From Maxime Ripard:
Cleanups in various machine definitions
- Patches to remove the .init_irq definition when using irqchip_init
- Make the ARM core code call debug_ll_io_init when no map_io callback is
declared
- Remove the .map_io definition in the various machines using it
(Some of these go through the platform maintainers, these are the ones who got
explicitly acked and not picked up by anyone else)
Signed-off-by: Olof Johansson <olof@lixom.net>
* tag 'arm-soc-cleanups-for-3.11' of git://github.com/mripard/linux:
ARM: sunxi: Remove the .map_io function declaration
ARM: mxs: remove the .map_io declaration
ARM: highbank: remove the .map_io declaration
ARM: mmu: Call debug_ll_io_init if no map_io function is specified
ARM: vt8500: Remove init_irq declaration in machine description
ARM: virt: Remove init_irq declaration in machine description
ARM: vexpress: Remove init_irq declaration in machine description
ARM: sirf: Remove init_irq declaration in machine description
ARM: spear: Remove init_irq declaration in machine description
ARM: nomadik: Remove init_irq declaration in machine description
Since the recent addition of 8021AD, we need to set the new field vlan_proto in
sk_buff. Otherwise, it will trigger BUG() call in vlan_proto_idx().
This patch fixes the problem.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case the port list dump does not fit into one skb currently the
dump would start over again. Fix this by continue from the last dumped
port.
Introduced by commit d90f889e9c (team: handle sending port list in the
same way option list is sent)
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
The SELinux labeled IPsec code was improperly handling its reference
counting, dropping a reference on a delete operation instead of on a
free/release operation.
Reported-by: Ondrej Moris <omoris@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In some cases after deleting a policy from the SPD the policy would
remain in the dst/flow/route cache for an extended period of time
which caused problems for SELinux as its dynamic network access
controls key off of the number of XFRM policy and state entries.
This patch corrects this problem by forcing a XFRM garbage collection
whenever a policy is sucessfully removed.
Reported-by: Ondrej Moris <omoris@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Forcing uninitialized state allows us to upgrade and reinitialize the adapter.
FW_VERSION_T4 = 1.4.0.0
FW_VERSION_T5 = 0.0.0.0
At this point driver supports above and greater than above version of firmware.
If it doesn't find the required firmware version than it forces the adapter to
be reinitialized as shown below.
1) If FW_ON_ADAPTER < FW_VERSION and we're the MASTER_PF force uninitialized
state and a FW upgrade if available.
- If FW_ON_ADAPTER < /lib/firmware/cxgb4/t*fw.bin we will update the
adapters FW.
- If FW_ON_ADAPTER >= /lib/firmware/cxgb4/t*fw.bin don't upgrade FW.
- If upgrade_fw() fails force reinitialization of the adapter anyways,
it might still work.
Either way forcing the uninitialized state allows cxgb4 reinitialize FW.
2) If FW_ON_ADAPTER >= FW_VERSION driver follows normal path.
Signed-off-by: Jay Hernandez <jay@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added code to initiate FW dump via ethtool. Driver checks if the previous dump
has been cleared before initiating the dump. It doesn't initiate the dump
if it is not cleared.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Additional 4 bytes found in the skb is the CRC calculated by the
CPDMA hardware, check the CRC bit in CPDMA status field of
Descriptor and remove the CRC length from the skb. This extra
4 byte can be seen when capturing packets using tcpdump.
This has been tested in TI816x platform.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Hackberry has a PHY that needs to be powered up through a GPIO, so
we need to use a fixed regulator here.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The EMAC only has one pinset available for muxing, so hopefully, we
cover all cases.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds a separate driver for the MDIO interface of the
Allwinner ethernet controllers.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Allwinner A10 has an ethernet controller that seem to be developped
internally by them.
The exact feature set of this controller is unknown, since there is no
public documentation for this IP, and this driver is mostly the one
published by Allwinner that has been heavily cleaned up.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PHY library currently does not know about the the reverse MII
connection type. Add it to the list of supported PHY modes and update
of_get_phy_mode() to support it and look for the string "rev-mii".
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds the support of IPv4 over Ipv4 for the module sit. The gain of
this feature is to be able to have 4in4 and 6in4 over the same interface
instead of having one interface for 6in4 and another for 4in4 even if
encapsulation addresses are the same.
To avoid conflicting with ipip module, sit IPv4 over IPv4 protocol is
registered with a smaller priority.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Before this patch, ip_tunnel_xmit() was using the field protocol from the IP
header passed into argument.
There is no functional change, this patch prepares the support of IPv4 over
IPv4 for module sit.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
udp6 over GRE tunnel does not work after to GRE tso changes. GRE
tso handler passes inner packet but keeps track of outer header
start in SKB_GSO_CB(skb)->mac_offset. udp6 fragment need to
take care of outer header, which start at the mac_offset, while
adding fragment header.
This bug is introduced by commit 68c3316311 (GRE: Add TCP
segmentation offload for GRE).
Reported-by: Dmitry Kravkov <dkravkov@gmail.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Tested-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 1a37e412a0 (net: Use 16bits for *_headers
fields of struct skbuff) converts skb->*_header to u16,
some #if NET_SKBUFF_DATA_USES_OFFSET are now useless,
and to be safe, we could just use "X = (typeof(X)) ~0U;"
as suggested by David.
Cc: David S. Miller <davem@davemloft.net>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The dev_mc_sync_multiple function is currently calling
__hw_addr_sync, and not __hw_addr_sync_multiple. This will result in
addresses only being synced to the first device from the set.
Corrected by calling the _multiple variant.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, __hw_addr_sync_one is called in a loop by
__hw_addr_sync_multiple to sync each of a "from" device's hw addresses
to a "to" device. __hw_addr_sync_one calls __hw_addr_add_ex to attempt
to add each address. __hw_addr_add_ex is called with global=false, and
sync=true.
__hw_addr_add_ex checks to see if the new address matches an
address already on the list. If so, it tests global and sync. In this
case, sync=true, and it then checks if the address is already synced,
and if so, returns 0.
This 0 return causes __hw_addr_sync_one to increment the sync_cnt
and refcount for the "from" list's address entry, even though the address
is already synced and has a reference and sync_cnt. This will cause
the sync_cnt and refcount to increment without bound every time an
addresses is added to the "from" device and synced to the "to" device.
The fix here has two parts:
First, when __hw_addr_add_ex finds the address already exists
and is synced, return -EEXIST instead of 0.
Second, __hw_addr_sync_one checks the error return for -EEXIST,
and if so, it (a) does not add a refcount/sync_cnt, and (b) returns 0
itself so that __hw_addr_sync_multiple will not return an error.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When an address is added to a subordinate interface (the "to"
list), the address entry in the "from" list is not marked "synced" as
the entry added to the "to" list is.
When performing the unsync operation (e.g., dev_mc_unsync),
__hw_addr_unsync_one calls __hw_addr_del_entry with the "synced"
parameter set to true for the case when the address reference is being
released from the "from" list. This causes a test inside to fail,
with the result being that the reference count on the "from" address
is not properly decremeted and the address on the "from" list will
never be freed.
Correct this by having __hw_addr_unsync_one call the
__hw_addr_del_entry function with the "sync" flag set to false for the
"remove from the from list" case.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sync_cnt field is not being initialized, which can result
in arbitrary values in the field. Fixed by initializing it to zero.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The arithmetics adding delalloc blocks to the number of used blocks in
ext4_getattr() can easily overflow on 32-bit archs as we first multiply
number of blocks by blocksize and then divide back by 512. Make the
arithmetics more clever and also use proper type (unsigned long long
instead of unsigned long).
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
On 32-bit architectures with 32-bit sector_t computation of data offset
in ext4_xattr_fiemap() can overflow resulting in reporting bogus data
location. Fix the problem by typing block number to proper type before
shifting.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This corrects an regression introduced by "net: Use 16bits for *_headers
fields of struct skbuff" when NET_SKBUFF_DATA_USES_OFFSET is not set. In
that case skb->tail will be a pointer whereas skb->network_header
will be an offset from head. This is corrected by using wrappers that
ensure that calculations are always made using pointers.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
ext4_lblk_t is just u32 so multiplying it by blocksize can easily
overflow for files larger than 4 GB. Fix that by properly typing the
block offsets before shifting.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
On 32-bit archs when sector_t is defined as 32-bit the logic computing
data offset in ext4_inline_data_fiemap(). Fix that by properly typing
the shifted value.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Commit 64deb6efdc
"[SCSI] zfcp: Use status_read_buf_num provided by FCP channel"
started using a value returned by the channel but only evaluated the value
if the fabric link is up.
Commit 8d88cf3f3b
"[SCSI] zfcp: Update status read mempool"
introduced mempool resizings based on the above value.
On setting an FCP device online for the very first time since boot, a new
zeroed adapter object is allocated. If the link is down, the number of
status read requests remains zero. Since just the config data exchange is
incomplete, we proceed with adapter open recovery. However, we
unconditionally call mempool_resize with adapter->stat_read_buf_num == 0 in
this case.
This causes a kernel message "kernel BUG at mm/mempool.c:131!" in process
"zfcperp<FCP-device-bus-ID>" with last function mempool_resize in Krnl PSW
and zfcp_erp_thread in the Call Trace.
Don't evaluate channel values which are invalid on link down. The number of
status read requests is always valid, evaluated, and set to a positive
minimum greater than zero. The adapter open recovery can proceed and the
channel has status read buffers to inform us on a future link up event.
While we are not aware of any other code path that could result in mempool
resize attempts of size zero, we still also initialize the number of status
read buffers to be posted to a static minimum number on adapter object
allocation.
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> #2.6.35+
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This patch removes an interface that was used to manage access control
tables within the HBA. The patch consequently removes the handling
for conditions related to those access control tables, too.
That initiator-based access control feature was only needed until the
introduction of NPIV and was withdrawn with z10 years ago.
It's time to cleanup the corresponding device driver code.
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
So far, we could only increase the s390dbf log level after an FCP
device has been initially set online for it to create the dbf entries
required to adjust the level.
Introduce zfcp.dbflevel as counterpart to the already existing
zfcp.dbfsize to enable debugging of e.g. setting an FCP device online.
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
