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This gen_err flag is only assigned 0 or 1 and treated as a bool,
so convert it to a bool.
Cc: Chunyan Zhang <zhang.chunyan@linaro.org>
Cc: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The sdhci capabilities register can be incorrect. The sdhci-caps-mask
and sdhci-caps dt properties specify which bits of the register are
incorrect and what their values should be. This patch makes the sdhci
driver use those properties to correct the caps during
__sdhci_read_caps.
During __sdhci_read_caps
Use the sdhci-caps-mask property to turn off the incorrect bits of the
sdhci register after reading them.
Use the sdhci-caps to turn on bits after using sdhci-caps-mask to turn
off the incorrect ones.
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
On some systems the sdhci capabilty register is incorrect for one
reason or another.
The sdhci-caps-mask property specifies which bits in the register
are incorrect and should be turned off before using sdhci-caps to turn
on bits.
The sdhci-caps property specifies which bits should be turned on.
Signed-off-by: Zach Brown <zach.brown@ni.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The ST Micro-specific busy detection was made after the assumption
that only this variant supports busy detection. So when doing busy
detection, the host immediately tries to use some ST-specific
register bits.
Since the qualcomm variant also supports some busy detection
schemes, encapsulate the variant flags better in the variant struct
and prepare to add more variants by just providing some bitmasks
to the logic.
Put the entire busy detection logic within an if()-clause in the
mmci_cmd_irq() function so the code is only executed when busy
detection is enabled, and so that it is kept in (almost) one
place, and add comments describing what is going on so the
code can be understood.
Tested on the Ux500 by introducing some prints in the busy
detection path and noticing how the IRQ is enabled, used and
disabled successfully.
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
There was some confusion in the CPSM (Command Path State Machine)
and DPSM (Data Path State Machine) regarding the naming of the
registers, clarify the meaning of this acronym so the naming is
understandable, and consistently use BIT() to define these fields.
Consequently name the register bit defines MCI_[C|D]PSM_* and
adjust the driver as well.
Include new definitions for a few bits found in a patch from
Srinivas Kandagatla.
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Support for DMA slave map has been added to the s3c24xx-dma
controller in commit 34681d84a0f7cc22ded1413dc79eef8a2f23d9c3
"dmaengine: s3c24xx: Add dma_slave_map for s3c2440 devices"
This patch converts the s3cmci driver to also use it, so we can
eventually get rid of the exported filter function once all
related DMA clients are updated.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
The MMC_CAP2_NO_PRESCAN_POWERUP was invented to avoid running the power up
sequence, mmc_power_up(), during ->probe() of the mmc host driver, but
instead defer this to the mmc detect work. This is especially useful for
those hosts that suffers from a long initialization time, as this time
would otherwise add up to the total boot time.
However, due to the introduction of runtime PM of mmc host devices in the
mmc core, this behaviour changed a bit. More precisely, it caused the mmc
core to runtime resume the host device during ->probe() of the host driver.
In cases like the rtsx_usb_sdmmc, runtime resuming the device may be costly
and thus affecting the total boot time.
To improve this behaviour when using MMC_CAP2_NO_PRESCAN_POWERUP, let's
postpone also calling mmc_power_off() when starting the host. This change
allows the mmc core to avoid runtime resuming the device, as it don't need
to claim the host for that execution path.
Cc: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Initial support for the SD/eMMC controller in the Amlogic S905/GX*
family of SoCs.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Now there are no variant drivers using dw_mci_suspend
and dw_mci_resume, so let's remove it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Let's migrate it to use runtime PM and remove the system
PM callback from this driver. With this patch, it could
handle system PM properly and could also use runtime PM
if we enable it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Let's migrate it to use runtime PM and remove the system
PM callback from this driver. With this patch, it could
handle system PM properly and could also use runtime PM
if we enable it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Let's migrate it to use runtime PM and remove the system
PM callback from this driver. With this patch, it could
handle system PM properly and could also use runtime PM
if we enable it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Let's migrate it to use runtime PM and remove the system
PM callback from this driver. With this patch, it could
handle system PM properly and could also use runtime PM
if we enable it.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
We could disable biu clk if gpio card detect available,
or it is a non-removable device.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Add new helper API mmc_can_gpio_cd for slot-gpio to make
host drivers know whether it supports gpio card detect.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This patch adds runtime PM support for dw_mmc-rockchip.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This patch add dw_mci_runtime_suspend/resume interfaces
and expose it to dw_mci variant driver to support runtime
PM.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
When polling for busy after sending a MMC_SWITCH command, both the optional
->card_busy() callback and CMD13 are being used in conjunction.
This doesn't make sense. Instead it's more reasonable to rely solely on the
->card_busy() callback when it exists. Let's change that and instead use
the CMD13 as a fall-back. In this way we avoid sending CMD13, unless it's
really needed.
Within this context, let's also take the opportunity to make some
additional clean-ups and clarifications to the related code.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
In yet another step of cleaning up __mmc_switch(), let's factor out the
code that deals with card busy polling.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
The __mmc_switch() deserves a clean-up. In this step, let's move some code
outside of the do-while loop, which deal deals with the card busy polling.
This change simplifies the code in that sense that it becomes easier to follow
what is being executed during card busy polling, but it also gives a better
understanding for when polling isn't done.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Following changes needs mmc_switch_status() to be available both from mmc.c
and mmc_ops.c. Allow that by moving its implementation to mmc_ops.c and
make it available via mmc_ops.h.
Moving mmc_switch_status() to mmc_ops.c, also enables us to turn
mmc_switch_status_error() into static function. So let's take the
opportunity to change this as well.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Provides runtime PM callbacks to enable and disable clock resources
when idle. Also support system PM callbacks to be called during system
suspend and resume.
Reviewed-by: Ritesh Harjani <riteshh@codeaurora.org>
Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org>
Tested-by: Ritesh Harjani <riteshh@codeaurora.org>
Signed-off-by: Pramod Gurav <pramod.gurav@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
VMMC is an optional regulator, which means that mmc_regulator_get_supply
will only return an error in case of a deferred probe, but not when the
regulator is not set in the DT.
However, the sunxi driver assumes that VMMC is always there, and doesn't
check the value of the regulator pointer before using it, which obviously
leads to a (close to) null pointer dereference.
Add proper checks to prevent that.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
It is used for limitation of buffer size during IOCTL such as FFU.
However, eMMC FW size is bigger than (512L*256).
(For instance, currently, Samsung eMMC FW size is over 300KB.)
So, it needs to increase to execute FFU.
Signed-off-by: Jeonghan Kim <jh4u.kim@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
$
After this patch:
$ modinfo drivers/mmc/host/sdhci-of-at91.ko | grep alias
alias: of:N*T*Catmel,sama5d2-sdhciC*
alias: of:N*T*Catmel,sama5d2-sdhci
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/mmc/host/mtk-sd.ko | grep alias
$
After this patch:
$ modinfo drivers/mmc/host/mtk-sd.ko | grep alias
alias: of:N*T*Cmediatek,mt8135-mmcC*
alias: of:N*T*Cmediatek,mt8135-mmc
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Enable runtime PM autosuspend for the rtsx_usb_sdmmc driver to avoid the
device being runtime suspended and runtime resumed between each request.
Let's use a default timeout of 50ms, to be consistent with other mmc hosts.
Cc: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
value of ios->timing is not related with SDCHI v3.0. If Controller version
is v3.0, SDHCI_QUIRK_NO_HISPD_BIT is meaningless. To prevent the setting
wrong bit moves into one condition checking. (e.g sdhci-s3c doesn't use
SDHCI_CTRL_HISPD bit, instead using this bit as other purpose.)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Pull IOMMU fixes from David Woodhouse:
"Two minor fixes.
The first fixes the assignment of SR-IOV virtual functions to the
correct IOMMU unit, and the second fixes the excessively large (and
physically contiguous) PASID tables used with SVM"
* git://git.infradead.org/intel-iommu:
iommu/vt-d: Fix PASID table allocation
iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions
Pull MIPS fixes from Ralf Baechle:
"Another round of MIPS fixes for 4.9:
- Fix unreadable output in __do_page_fault due to the KERN_CONT
patchset
- Correctly handle MIPS R6 fixes to the c0_wired register"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: mm: Fix output of __do_page_fault
MIPS: Mask out limit field when calculating wired entry count
Botched calculation of number of pages. As the result,
we were dropping pieces when doing splice to pipe from
e.g. 9p.
Reported-by: Alexei Starovoitov <ast@kernel.org>
Tested-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull i2c fixes from Wolfram Sang:
"Here is a revert and two bugfixes for the I2C designware driver.
Please note that we are still hunting down a regression for the
i2c-octeon driver. While there is a fix pending, we have unclear
feedback from the testers currently. An rc8 would be quite helpful
for this case"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: designware: do not disable adapter after transfer"
i2c: designware: fix rx fifo depth tracking
i2c: designware: report short transfers
Pull ARM fix from Russell King:
"This resolves the ksyms issues by reverting the commit which
introduced the breakage"
There was what I consider to be a better fix, but it's late in the rc
game, so I'll take the revert.
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
Revert "arm: move exports to definitions"
Pull networking fixes from David Miller:
1) Fix leak in fsl/fman driver, from Dan Carpenter.
2) Call flow dissector initcall earlier than any networking driver can
register and start to use it, from Eric Dumazet.
3) Some dup header fixes from Geliang Tang.
4) TIPC link monitoring compat fix from Jon Paul Maloy.
5) Link changes require EEE re-negotiation in bcm_sf2 driver, from
Florian Fainelli.
6) Fix bogus handle ID passed into tfilter_notify_chain(), from Roman
Mashak.
7) Fix dump size calculation in rtnl_calcit(), from Zhang Shengju.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
tipc: resolve connection flow control compatibility problem
mvpp2: use correct size for memset
net/mlx5: drop duplicate header delay.h
net: ieee802154: drop duplicate header delay.h
ibmvnic: drop duplicate header seq_file.h
fsl/fman: fix a leak in tgec_free()
net: ethtool: don't require CAP_NET_ADMIN for ETHTOOL_GLINKSETTINGS
tipc: improve sanity check for received domain records
tipc: fix compatibility bug in link monitoring
net: ethernet: mvneta: Remove IFF_UNICAST_FLT which is not implemented
dwc_eth_qos: drop duplicate headers
net sched filters: fix filter handle ID in tfilter_notify_chain()
net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change
bnxt: do not busy-poll when link is down
udplite: call proper backlog handlers
ipv6: bump genid when the IFA_F_TENTATIVE flag is clear
net/mlx4_en: Free netdev resources under state lock
net: revert "net: l2tp: Treat NET_XMIT_CN as success in l2tp_eth_dev_xmit"
rtnetlink: fix the wrong minimal dump size getting from rtnl_calcit()
bnxt_en: Fix a VXLAN vs GENEVE issue
...
Pull libnvdimm fixes from Dan Williams:
- Fix a crash that occurs at driver initialization if the memory region
is already busy (request_mem_region() fails).
- Fix a vma validation check that mistakenly allows a private device-
dax mapping to be established. Device-dax explicitly forbids private
mappings so it can guarantee a given fault granularity and backing
memory type.
Both of these fixes have soaked in -next and are tagged for -stable.
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
device-dax: fail all private mapping attempts
device-dax: check devm_nsio_enable() return value
Four fixes for bugs found by syzkaller on x86, all for stable.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"Four fixes for bugs found by syzkaller on x86, all for stable"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: check for pic and ioapic presence before use
KVM: x86: fix out-of-bounds accesses of rtc_eoi map
KVM: x86: drop error recovery in em_jmp_far and em_ret_far
KVM: x86: fix out-of-bounds access in lapic
Fixes marked for stable:
- Set missing wakeup bit in LPCR on POWER9 (Benjamin Herrenschmidt)
- Fix the early OPAL console wrappers (Oliver O'Halloran)
- Fixup kernel read only mapping (Aneesh Kumar K.V)
Fixes for code merged this cycle:
- Fix missing CRCs, add more asm-prototypes.h declarations (Nicholas Piggin)
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Merge tag 'powerpc-4.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- Set missing wakeup bit in LPCR on POWER9
- Fix the early OPAL console wrappers
- Fixup kernel read only mapping
Fixes for code merged this cycle:
- Fix missing CRCs, add more asm-prototypes.h declarations"
* tag 'powerpc-4.9-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fixup kernel read only mapping
powerpc/boot: Fix the early OPAL console wrappers
powerpc: Fix missing CRCs, add more asm-prototypes.h declarations
powerpc: Set missing wakeup bit in LPCR on POWER9
In commit 10724cc7bb78 ("tipc: redesign connection-level flow control")
we replaced the previous message based flow control with one based on
1k blocks. In order to ensure backwards compatibility the mechanism
falls back to using message as base unit when it senses that the peer
doesn't support the new algorithm. The default flow control window,
i.e., how many units can be sent before the sender blocks and waits
for an acknowledge (aka advertisement) is 512. This was tested against
the previous version, which uses an acknowledge frequency of on ack per
256 received message, and found to work fine.
However, we missed the fact that versions older than Linux 3.15 use an
acknowledge frequency of 512, which is exactly the limit where a 4.6+
sender will stop and wait for acknowledge. This would also work fine if
it weren't for the fact that if the first sent message on a 4.6+ server
side is an empty SYNACK, this one is also is counted as a sent message,
while it is not counted as a received message on a legacy 3.15-receiver.
This leads to the sender always being one step ahead of the receiver, a
scenario causing the sender to block after 512 sent messages, while the
receiver only has registered 511 read messages. Hence, the legacy
receiver is not trigged to send an acknowledge, with a permanently
blocked sender as result.
We solve this deadlock by simply allowing the sender to send one more
message before it blocks, i.e., by a making minimal change to the
condition used for determining connection congestion.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gcc-7 detects a short memset in mvpp2, introduced in the original
merge of the driver:
drivers/net/ethernet/marvell/mvpp2.c: In function 'mvpp2_cls_init':
drivers/net/ethernet/marvell/mvpp2.c:3296:2: error: 'memset' used with length equal to number of elements without multiplication by element size [-Werror=memset-elt-size]
The result seems to be that we write uninitialized data into the
flow table registers, although we did not get any warning about
that uninitialized data usage.
Using sizeof() lets us initialize then entire array instead.
Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drop duplicate header delay.h from mlx5/core/main.c.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Acked-by: Matan Barak <matanb@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drop duplicate header delay.h from adf7242.c.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drop duplicate header seq_file.h from ibmvnic.c.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We set "tgec->cfg" to NULL before passing it to kfree(). There is no
need to set it to NULL at all. Let's just delete it.
Fixes: 57ba4c9b56d8 ("fsl/fman: Add FMan MAC support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ETHTOOL_GLINKSETTINGS command is deprecating the ETHTOOL_GSET
command and likewise it shouldn't require the CAP_NET_ADMIN capability.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 35c55c9877f8 ("tipc: add neighbor monitoring framework") we
added a data area to the link monitor STATE messages under the
assumption that previous versions did not use any such data area.
For versions older than Linux 4.3 this assumption is not correct. In
those version, all STATE messages sent out from a node inadvertently
contain a 16 byte data area containing a string; -a leftover from
previous RESET messages which were using this during the setup phase.
This string serves no purpose in STATE messages, and should no be there.
Unfortunately, this data area is delivered to the link monitor
framework, where a sanity check catches that it is not a correct domain
record, and drops it. It also issues a rate limited warning about the
event.
Since such events occur much more frequently than anticipated, we now
choose to remove the warning in order to not fill the kernel log with
useless contents. We also make the sanity check stricter, to further
reduce the risk that such data is inavertently admitted.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 817298102b0b ("tipc: fix link priority propagation") introduced a
compatibility problem between TIPC versions newer than Linux 4.6 and
those older than Linux 4.4. In versions later than 4.4, link STATE
messages only contain a non-zero link priority value when the sender
wants the receiver to change its priority. This has the effect that the
receiver resets itself in order to apply the new priority. This works
well, and is consistent with the said commit.
However, in versions older than 4.4 a valid link priority is present in
all sent link STATE messages, leading to cyclic link establishment and
reset on the 4.6+ node.
We fix this by adding a test that the received value should not only
be valid, but also differ from the current value in order to cause the
receiving link endpoint to reset.
Reported-by: Amar Nv <amar.nv005@gmail.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mvneta driver advertises it supports IFF_UNICAST_FLT. However, it
actually does not. The hardware probably does support it, but there is
no code to configure the filter. As a quick and simple fix, remove the
flag. This will cause the core to fall back to promiscuous mode.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Fixes: b50b72de2f2f ("net: mvneta: enable features before registering the driver")
Signed-off-by: David S. Miller <davem@davemloft.net>
