In rare cases, ena driver would reset and re-start the device,
for example, in case of misbehaving application that causes
transmit timeout
The first step in the reset procedure is to stop the Tx traffic by
calling ena_carrier_off().
After the driver have just started the device reset procedure, device
happens to send an asynchronous notification (via AENQ) to the driver
than there was a link change (to link-up state).
This link change is mapped to a call to netif_carrier_on() which
re-activates the Tx queues, violating the assumption of no tx traffic
until device reset is completed, as the reset task might still be in
the process of queues initialization, leading to an access to
uninitialized memory.
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit c4fac91004 ("9p: Implement show_options"), the mount
options of 9p filesystems are printed out with some missing commas
between the individual options:
p9-scratch on /mnt/scratch type 9p (rw,dirsync,loose,access=clienttrans=virtio)
Add them back.
Cc: stable@vger.kernel.org # 4.13+
Fixes: c4fac91004 ("9p: Implement show_options")
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Commit b65a9cfc2c ("Untangling ima mess, part 2: deal with counters")
moved the call of ima_file_check() from may_open() to do_filp_open() at a
point where the file descriptor is already opened.
This breaks the assumption made by IMA that file descriptors being closed
belong to files whose access was granted by ima_file_check(). The
consequence is that security.ima and security.evm are updated with good
values, regardless of the current appraisal status.
For example, if a file does not have security.ima, IMA will create it after
opening the file for writing, even if access is denied. Access to the file
will be allowed afterwards.
Avoid this issue by checking the appraisal status before updating
security.ima.
Cc: stable@vger.kernel.org
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Some cleanup/fixes, some noticed during testing of Noralf Trønnes
rework of the suspend/resume helper. He will rebase the patchset
ontop of this.
* tag 'drm-fsl-dcu-fixes-for-v4.15' of http://git.agner.ch/git/linux-drm-fsl-dcu:
drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
drm/fsl-dcu: avoid disabling pixel clock twice on suspend
drm/fsl-dcu: Don't set connector DPMS property
Misc fixes for 4.15.
* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/pp: fix dpm randomly failed on Vega10
drm/amdgpu: set f_mapping on exported DMA-bufs
drm/amdgpu: Properly allocate VM invalidate eng v2
drm/amd/amdgpu: if visible VRAM allocation fail, fall back to invisible try again
drm/amd/amdgpu: Fix wave mask in amdgpu_debugfs_wave_read() (v2)
drm/amdgpu: make AMDGPU_VA_RESERVED_SIZE 64bit
drm/amdgpu/gfx9: implement wave VGPR reading
drm/amdgpu: Add common golden settings for GFX9
drm/amd/powerplay: fix copy-n-paste error on vddci_buf index
drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
drm/amdgpu: Remove check which is not valid for certain VBIOS
Adjust the code to use the same green settings as in the latest
vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Name of functions rtl_w0w1_eri and rtl_w0w1_phy is somewhat misleading
regarding order of arguments. One could assume that w0w1 means
argument with bits to be reset comes before argument with bits to set.
However this is not the case.
So fix the order of arguments in several statements.
In addition fix EEE advertisement. The current code resets the bits
for 100BaseT and 1000BaseT EEE advertisement what is not what we want.
I have a little of a hard time to find a proper "Fixes" line as the
issue seems to have been there forever (at least it existed already
when the driver was moved to the current place in 2011).
The patch was tested on a Zotac Mini-PC with a RTL8111E-VL chip.
Before the patch EEE was disabled, now it's properly advertised and
works fine.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rcu_read_lock in tun_build_skb is used to rcu_dereference tun->xdp_prog
safely, rcu_read_unlock should be done in every return path.
Now I could see one place missing it, where it returns NULL in switch-case
XDP_REDIRECT, another palce using rcu_read_lock wrongly, where it returns
NULL in if (xdp_xmit) chunk.
So fix both in this patch.
Fixes: 761876c857 ("tap: XDP support")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the TLP scheduling logic so that when scheduling a TLP probe, we
ensure that the estimated time at which an RTO would fire accounts for
the fact that ACKs indicating forward progress should push back RTO
times.
After the following fix:
df92c8394e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed")
we had an unintentional behavior change in the following kind of
scenario: suppose the RTT variance has been very low recently. Then
suppose we send out a flight of N packets and our RTT is 100ms:
t=0: send a flight of N packets
t=100ms: receive an ACK for N-1 packets
The response before df92c8394e that was:
-> schedule a TLP for now + RTO_interval
The response after df92c8394e is:
-> schedule a TLP for t=0 + RTO_interval
Since RTO_interval = srtt + RTT_variance, this means that we have
scheduled a TLP timer at a point in the future that only accounts for
RTT_variance. If the RTT_variance term is small, this means that the
timer fires soon.
Before df92c8394e this would not happen, because in that code, when
we receive an ACK for a prefix of flight, we did:
1) Near the top of tcp_ack(), switch from TLP timer to RTO
at write_queue_head->paket_tx_time + RTO_interval:
if (icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)
tcp_rearm_rto(sk);
2) In tcp_clean_rtx_queue(), update the RTO to now + RTO_interval:
if (flag & FLAG_ACKED) {
tcp_rearm_rto(sk);
3) In tcp_ack() after tcp_fastretrans_alert() switch from RTO
to TLP at now + RTO_interval:
if (icsk->icsk_pending == ICSK_TIME_RETRANS)
tcp_schedule_loss_probe(sk);
In df92c8394e we removed that 3-phase dance, and instead directly
set the TLP timer once: we set the TLP timer in cases like this to
write_queue_head->packet_tx_time + RTO_interval. So if the RTT
variance is small, then this means that this is setting the TLP timer
to fire quite soon. This means if the ACK for the tail of the flight
takes longer than an RTT to arrive (often due to delayed ACKs), then
the TLP timer fires too quickly.
Fixes: df92c8394e ("tcp: fix xmit timer to only be reset if data ACKed/SACKed")
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
_dev_ is being dereferenced before it is null checked, hence there
is a potential null pointer dereference.
Fix this by moving the pointer dereference after _dev_ has been null
checked.
Addresses-Coverity-ID: 1462020
Fixes: bb1b40c7cb ("usbnet: ipheth: prevent TX queue timeouts when device not ready")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit 308edfdf15 ("gre6: Cleanup GREv6 receive path, call
common GRE functions") it's not used anywhere in the module, but
previously was used in ip6gre_rcv().
Fixes: 308edfdf15 ("gre6: Cleanup GREv6 receive path, call common GRE functions")
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The workaround code is never used because Skylake NTB does not need it.
Reported-by: Allen Hubbe <allen.hubbe@dell.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Make these const as they are only used during a copy operation.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
The switchtec_ntb driver has a couple requirements on the switchec's
hardware configuration so we add these notes to the documentation.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
The Switchtec hardware has two types of memory windows: LUTs and Direct.
The first area in each BAR is for LUT windows and the remaining area is
for the direct region. The total number of LUT entries is set by a
configuration setting in hardware and they all must be the same
size. (This is fixed by switchtec_ntb to be 64K.)
switchtec_ntb enables the LUTs only for the first BAR and enables the
highest power of two possible. Seeing the LUTs are at the beginning of
the BAR, the direct memory window's alignment is affected. Therefore,
the maximum direct memory window size can not be greater than the number
of LUTs times 64K. The direct window in other BARs will not have this
restriction as the LUTs will not be enabled there. LUTs will only be
exposed through the NTB API if the use_lut_mw parameter is set.
Seeing the Switchtec hardware, by default, configures BARs to be 4G a
module parameter is given to limit the size of the advertised memory
windows. Higher layers tend to allocate the maximum BAR size and this
has a tendency to fail when they try to allocate 4GB of contiguous
memory.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Seeing there is no dedicated hardware for this, we simply add
these as entries in the shared memory window. Thus, we could support
any number of them but 128 seems like enough, for now.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Pretty straightforward implementation of doorbell registers.
The shift and mask were setup in an earlier patch and this just hooks
up the appropriate portion of the IDB register as the local doorbells
and the opposite portion of ODB as the peer doorbells. The DB mask is
protected by a spinlock to avoid concurrent read-modify-write accesses.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
switchtec_ntb checks for a link by looking at the shared memory
window. If the magic number is correct and the other side indicates
their link is enabled then we take the link to be up.
Whenever we change our local link status we send a msg to the
other side to check whether it's up and change their status.
The current status is maintained in a flag so ntb_is_link_up
can return quickly.
We utilize Switchtec's link status notifier to also check link changes
when the switch notices a port changes state.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Add a skeleton NTB driver which will be filled out in subsequent patches.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Set up some hardware registers and creates interrupt service routines
for the doorbells and messages.
There are 64 doorbells in the switch that are shared between all
partitions. The upper 4 doorbells are also shared with the messages
and are therefore not used. Thus, this provides 28 doorbells for each
partition.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Add the code to initialize the memory windows in the hardware.
This includes setting up the requester ID table, and figuring out
which BAR corresponds to which memory window. (Seeing the switch
can be configured with any number of BARs.)
Also, seeing the device doesn't have hardware for scratchpads or
determining the link status, we create a shared memory window that has
these features. A magic number with a version component will be used
to determine if the other side's driver is actually up.
The shared memory window also informs the other side of the
size and count of the local memory windows.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Seeing the Switchtec NTB hardware shares the same endpoint as the
management endpoint we utilize the class_interface API to register
an NTB driver for every Switchtec device in the system that has the
NTB class code.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Adds a comment and a check to ntb_mw_get_align() so that it always fails
if the function is called before the link is up.
Also adds a comment to ntb_mw_count() to note that it may return 0 if
it is called before the link is up.
This is to prevent accidental mis-use in clients that are testing
on hardware that this doesn't matter for.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
With Switchtec hardware it's impossible to get the alignment parameters
for a peer's memory window until the peer's driver has configured its
windows. Strictly speaking, the link doesn't have to be up for this,
but the link being up is the only way the client can tell that
the other side has been configured.
This patch converts ntb_transport and ntb_perf to use this function after
the link goes up. This simplifies these clients slightly because they
no longer have to store the alignment parameters. It also tweaks
ntb_tool so that peer_mw_trans will print zero if it is run before
the link goes up.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
In order for the Switchtec NTB code to handle link change events we
create a notifier callback in the switchtec code which gets called
whenever an appropriate event interrupt occurs.
In order to preserve userspace's ability to follow these events,
we compare the event count with a stored copy from last time we
checked.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
There are two additional regions: ctrl and dbmsg. The first is
for generic NTB control and memory windows. The second is for doorbells
and message registers. This patch also adds a number of related
constants for using these registers.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
We export the class pointer symbol and add an extern define in the
Switchtec header file.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Create the switchtec.h header in include/linux with hardware defines
and the switchtec_dev structure. Both moved directly from switchtec.c.
This is a prep patch for creating an NTB driver for Switchtec.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
The updates this merge window added several bogus default enablement for
new features. We don't do that. If people want new behavior, they ask
for it.
One 'default n' was also removed as pointless. That's great, but there
were eight other ones in the same file that were left alone.
Fix it up.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- fix a number of races in the NFSv4+ state code.
- fix some shutdown crashes in multiple-network-namespace cases.
- relax our 4.1 session limits; if you've an artificially low limit
to the number of 4.1 clients that can mount simultaneously, try
upgrading.
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Merge tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
"Lots of good bugfixes, including:
- fix a number of races in the NFSv4+ state code
- fix some shutdown crashes in multiple-network-namespace cases
- relax our 4.1 session limits; if you've an artificially low limit
to the number of 4.1 clients that can mount simultaneously, try
upgrading"
* tag 'nfsd-4.15' of git://linux-nfs.org/~bfields/linux: (22 commits)
SUNRPC: Improve ordering of transport processing
nfsd: deal with revoked delegations appropriately
svcrdma: Enqueue after setting XPT_CLOSE in completion handlers
nfsd: use nfs->ns.inum as net ID
rpc: remove some BUG()s
svcrdma: Preserve CB send buffer across retransmits
nfds: avoid gettimeofday for nfssvc_boot time
fs, nfsd: convert nfs4_file.fi_ref from atomic_t to refcount_t
fs, nfsd: convert nfs4_cntl_odstate.co_odcount from atomic_t to refcount_t
fs, nfsd: convert nfs4_stid.sc_count from atomic_t to refcount_t
lockd: double unregister of inetaddr notifiers
nfsd4: catch some false session retries
nfsd4: fix cached replies to solo SEQUENCE compounds
sunrcp: make function _svc_create_xprt static
SUNRPC: Fix tracepoint storage issues with svc_recv and svc_rqst_status
nfsd: use ARRAY_SIZE
nfsd: give out fewer session slots as limit approaches
nfsd: increase DRC cache limit
nfsd: remove unnecessary nofilehandle checks
nfs_common: convert int to bool
...
For this cycle we have quite an update for the Dell SMBIOS driver
including WMI work to provide an interface for SMBIOS tokens via sysfs
and WMI support for 2017+ Dell laptop models. SMM dispatcher code is
split into a separate driver followed by a new WMI dispatcher.
The latter provides a character device interface to user space.
The pull request contains a merge of immutable branch from Wolfram Sang
in order to apply a dependent fix to the Intel CherryTrail Battery
Management driver.
Other Intel drivers got a lot of cleanups. The Turbo Boost Max 3.0
support is added for Intel Skylake.
Peaq WMI hotkeys driver gets its own maintainer and white list of
supported models.
Silead DMI is expanded to support few additional platforms.
Tablet mode via GMMS ACPI method is added to support some ThinkPad
tablets.
Two commits appear here which were previously merged during the
v4.14-rcX cycle:
- d7ca5ebf24 platform/x86: intel_pmc_ipc: Use devm_* calls in driver probe function
- e3075fd6f8 platform/x86: intel_pmc_ipc: Use spin_lock to protect GCR updates
Add driver to force WMI Thunderbolt controller power status:
- Add driver to force WMI Thunderbolt controller power status
asus-wmi:
- Add lightbar led support
dell-laptop:
- Allocate buffer before rfkill use
dell-smbios:
- fix string overflow
- Add filtering support
- Introduce dispatcher for SMM calls
- Add a sysfs interface for SMBIOS tokens
- only run if proper oem string is detected
- Prefix class/select with cmd_
- Add pr_fmt definition to driver
dell-smbios-smm:
- test for WSMT
dell-smbios-wmi:
- release mutex lock on WMI call failure
- introduce userspace interface
- Add new WMI dispatcher driver
dell-smo8800:
- remove redundant assignments to byte_data
dell-wmi:
- don't check length returned
- clean up wmi descriptor check
- increase severity of some failures
- Do not match on descriptor GUID modalias
- Label driver as handling notifications
dell-*wmi*:
- Relay failed initial probe to dependent drivers
dell-wmi-descriptor:
- check if memory was allocated
- split WMI descriptor into it's own driver
fujitsu-laptop:
- Fix radio LED detection
- Don't oops when FUJ02E3 is not presnt
hp_accel:
- Add quirk for HP ProBook 440 G4
hp-wmi:
- Fix tablet mode detection for convertibles
ideapad-laptop:
- Add Lenovo Yoga 920-13IKB to no_hw_rfkill dmi list
intel_cht_int33fe:
- Update fusb302 type string, add properties
- make a couple of local functions static
- Work around BIOS bug on some devices
intel-hid:
- Power button suspend on Dell Latitude 7275
intel_ips:
- Convert timers to use timer_setup()
- Remove FSF address from GPL notice
- Remove unneeded fields and label
- Keep pointer to struct device
- Use PCI_VDEVICE() macro
- Switch to new PCI IRQ allocation API
- Simplify error handling via devres API
intel_pmc_ipc:
- Revert Use MFD framework to create dependent devices
- Use MFD framework to create dependent devices
- Use spin_lock to protect GCR updates
- Use devm_* calls in driver probe function
intel_punit_ipc:
- Fix resource ioremap warning
intel_telemetry:
- Remove useless default in Kconfig
- Add needed inclusion
- cleanup redundant headers
- Fix typos
- Fix load failure info
intel_telemetry_debugfs:
- Use standard ARRAY_SIZE() macro
intel_turbo_max_3:
- Add Skylake platform
intel-wmi-thunderbolt:
- Silence error cases
MAINTAINERS:
- Add entry for the PEAQ WMI hotkeys driver
mlx-platform:
- make a couple of structures static
peaq_wmi:
- Fix missing terminating entry for peaq_dmi_table
peaq-wmi:
- Remove unnecessary checks from peaq_wmi_exit
- Add DMI check before binding to the WMI interface
- Revert Blacklist Lenovo ideapad 700-15ISK
- Blacklist Lenovo ideapad 700-15ISK
silead_dmi:
- Add silead, home-button property to some tablets
- Add entry for the Digma e200 tablet
- Fix GP-electronic T701 entry
- Add entry for the Chuwi Hi8 Pro tablet
sony-laptop:
- Drop variable assignment in sony_nc_setup_rfkill()
- Fix error handling in sony_nc_setup_rfkill()
thinkpad_acpi:
- Implement tablet mode using GMMS method
tools/wmi:
- add a sample for dell smbios communication over WMI
wmi:
- release mutex on module acquistion failure
- create userspace interface for drivers
- Don't allow drivers to get each other's GUIDs
- Add new method wmidev_evaluate_method
- Destroy on cleanup rather than unregister
- Cleanup exit routine in reverse order of init
- Sort include list
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Merge tag 'platform-drivers-x86-v4.15-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
"Here is the collected material against Platform Drivers x86 subsystem.
It's rather bit busy cycle for PDx86, mostly due to Dell SMBIOS driver
activity
For this cycle we have quite an update for the Dell SMBIOS driver
including WMI work to provide an interface for SMBIOS tokens via sysfs
and WMI support for 2017+ Dell laptop models. SMM dispatcher code is
split into a separate driver followed by a new WMI dispatcher. The
latter provides a character device interface to user space.
The git history also contains a merge of immutable branch from Wolfram
Sang in order to apply a dependent fix to the Intel CherryTrail
Battery Management driver.
Other Intel drivers got a lot of cleanups. The Turbo Boost Max 3.0
support is added for Intel Skylake.
Peaq WMI hotkeys driver gets its own maintainer and white list of
supported models.
Silead DMI is expanded to support few additional platforms.
Tablet mode via GMMS ACPI method is added to support some ThinkPad
tablets.
new driver:
- Add driver to force WMI Thunderbolt controller power status
asus-wmi:
- Add lightbar led support
dell-laptop:
- Allocate buffer before rfkill use
dell-smbios:
- fix string overflow
- Add filtering support
- Introduce dispatcher for SMM calls
- Add a sysfs interface for SMBIOS tokens
- only run if proper oem string is detected
- Prefix class/select with cmd_
- Add pr_fmt definition to driver
dell-smbios-smm:
- test for WSMT
dell-smbios-wmi:
- release mutex lock on WMI call failure
- introduce userspace interface
- Add new WMI dispatcher driver
dell-smo8800:
- remove redundant assignments to byte_data
dell-wmi:
- don't check length returned
- clean up wmi descriptor check
- increase severity of some failures
- Do not match on descriptor GUID modalias
- Label driver as handling notifications
dell-*wmi*:
- Relay failed initial probe to dependent drivers
dell-wmi-descriptor:
- check if memory was allocated
- split WMI descriptor into it's own driver
fujitsu-laptop:
- Fix radio LED detection
- Don't oops when FUJ02E3 is not presnt
hp_accel:
- Add quirk for HP ProBook 440 G4
hp-wmi:
- Fix tablet mode detection for convertibles
ideapad-laptop:
- Add Lenovo Yoga 920-13IKB to no_hw_rfkill dmi list
intel_cht_int33fe:
- Update fusb302 type string, add properties
- make a couple of local functions static
- Work around BIOS bug on some devices
intel-hid:
- Power button suspend on Dell Latitude 7275
intel_ips:
- Convert timers to use timer_setup()
- Remove FSF address from GPL notice
- Remove unneeded fields and label
- Keep pointer to struct device
- Use PCI_VDEVICE() macro
- Switch to new PCI IRQ allocation API
- Simplify error handling via devres API
intel_pmc_ipc:
- Revert Use MFD framework to create dependent devices
- Use MFD framework to create dependent devices
- Use spin_lock to protect GCR updates
- Use devm_* calls in driver probe function
intel_punit_ipc:
- Fix resource ioremap warning
intel_telemetry:
- Remove useless default in Kconfig
- Add needed inclusion
- cleanup redundant headers
- Fix typos
- Fix load failure info
intel_telemetry_debugfs:
- Use standard ARRAY_SIZE() macro
intel_turbo_max_3:
- Add Skylake platform
intel-wmi-thunderbolt:
- Silence error cases
mlx-platform:
- make a couple of structures static
peaq_wmi:
- Fix missing terminating entry for peaq_dmi_table
peaq-wmi:
- Remove unnecessary checks from peaq_wmi_exit
- Add DMI check before binding to the WMI interface
- Revert Blacklist Lenovo ideapad 700-15ISK
- Blacklist Lenovo ideapad 700-15ISK
silead_dmi:
- Add silead, home-button property to some tablets
- Add entry for the Digma e200 tablet
- Fix GP-electronic T701 entry
- Add entry for the Chuwi Hi8 Pro tablet
sony-laptop:
- Drop variable assignment in sony_nc_setup_rfkill()
- Fix error handling in sony_nc_setup_rfkill()
thinkpad_acpi:
- Implement tablet mode using GMMS method
tools/wmi:
- add a sample for dell smbios communication over WMI
wmi:
- release mutex on module acquistion failure
- create userspace interface for drivers
- Don't allow drivers to get each other's GUIDs
- Add new method wmidev_evaluate_method
- Destroy on cleanup rather than unregister
- Cleanup exit routine in reverse order of init
- Sort include list"
* tag 'platform-drivers-x86-v4.15-1' of git://git.infradead.org/linux-platform-drivers-x86: (74 commits)
platform/x86: silead_dmi: Add silead, home-button property to some tablets
platform/x86: dell-laptop: Allocate buffer before rfkill use
platform/x86: dell-*wmi*: Relay failed initial probe to dependent drivers
platform/x86: dell-wmi-descriptor: check if memory was allocated
platform/x86: Revert intel_pmc_ipc: Use MFD framework to create dependent devices
platform/x86: dell-smbios-wmi: release mutex lock on WMI call failure
platform/x86: wmi: release mutex on module acquistion failure
platform/x86: dell-smbios: fix string overflow
platform/x86: intel_pmc_ipc: Use MFD framework to create dependent devices
platform/x86: intel_punit_ipc: Fix resource ioremap warning
platform/x86: dell-smo8800: remove redundant assignments to byte_data
platform/x86: hp-wmi: Fix tablet mode detection for convertibles
platform/x86: intel_ips: Convert timers to use timer_setup()
platform/x86: sony-laptop: Drop variable assignment in sony_nc_setup_rfkill()
platform/x86: sony-laptop: Fix error handling in sony_nc_setup_rfkill()
tools/wmi: add a sample for dell smbios communication over WMI
platform/x86: dell-smbios-wmi: introduce userspace interface
platform/x86: wmi: create userspace interface for drivers
platform/x86: dell-smbios: Add filtering support
platform/x86: dell-smbios-smm: test for WSMT
...
Add "silead,home-button" property to entries for tablets which have
a capacitive home button (typically a windows logo on the front).
This new property is checked for by the new capacitive home button
support in the silead touchscreen driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Pull sparc updates from David Miller:
1) Add missing cmpxchg64() for 32-bit sparc.
2) Timer conversions from Allen Pais and Kees Cook.
3) vDSO support, from Nagarathnam Muthusamy.
4) Fix sparc64 huge page table walks based upon bug report by Al Viro,
from Nitin Gupta.
5) Optimized fls() for T4 and above, from Vijay Kumar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix page table walk for PUD hugepages
sparc64: Convert timers to user timer_setup()
sparc64: convert mdesc_handle.refcnt from atomic_t to refcount_t
sparc/led: Convert timers to use timer_setup()
sparc64: Use sparc optimized fls and __fls for T4 and above
sparc64: SPARC optimized __fls function
sparc64: SPARC optimized fls function
sparc64: Define SPARC default __fls function
sparc64: Define SPARC default fls function
vDSO for sparc
sparc32: Add cmpxchg64().
sbus: char: Move D7S_MINOR to include/linux/miscdevice.h
sparc: time: Remove unneeded linux/miscdevice.h include
sparc64: mmu_context: Add missing include files
Pull networking fixes from David Miller:
1) Revert regression inducing change to the IPSEC template resolver,
from Steffen Klassert.
2) Peeloffs can cause the wrong sk to be waken up in SCTP, fix from Xin
Long.
3) Min packet MTU size is wrong in cpsw driver, from Grygorii Strashko.
4) Fix build failure in netfilter ctnetlink, from Arnd Bergmann.
5) ISDN hisax driver checks pnp_irq() for errors incorrectly, from
Arvind Yadav.
6) Fix fealnx driver build failure on MIPS, from Huacai Chen.
7) Fix into leak in SCTP, the scope_id of socket addresses is not
always filled in. From Eric W. Biederman.
8) MTU inheritance between physical function and representor fix in nfp
driver, from Dirk van der Merwe.
9) Fix memory leak in rsi driver, from Colin Ian King.
10) Fix expiration and generation ID handling of cached ipv4 redirect
routes, from Xin Long.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
net: usb: hso.c: remove unneeded DRIVER_LICENSE #define
ibmvnic: fix dma_mapping_error call
ipvlan: NULL pointer dereference panic in ipvlan_port_destroy
route: also update fnhe_genid when updating a route cache
route: update fnhe_expires for redirect when the fnhe exists
sctp: set frag_point in sctp_setsockopt_maxseg correctly
rsi: fix memory leak on buf and usb_reg_buf
net/netlabel: Add list_next_rcu() in rcu_dereference().
nfp: remove false positive offloads in flower vxlan
nfp: register flower reprs for egress dev offload
nfp: inherit the max_mtu from the PF netdev
nfp: fix vlan receive MAC statistics typo
nfp: fix flower offload metadata flag usage
virto_net: remove empty file 'virtio_net.'
net/sctp: Always set scope_id in sctp_inet6_skb_msgname
fealnx: Fix building error on MIPS
isdn: hisax: Fix pnp_irq's error checking for setup_teles3
isdn: hisax: Fix pnp_irq's error checking for setup_sedlbauer_isapnp
isdn: hisax: Fix pnp_irq's error checking for setup_niccy
isdn: hisax: Fix pnp_irq's error checking for setup_ix1micro
...
This changes the HWSPINLOCK core Kconfig option to bool, to aid when other core
code depends on it.
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Merge tag 'hwlock-v4.15' of git://github.com/andersson/remoteproc
Pull hwspinlock update from Bjorn Andersson:
"This changes the HWSPINLOCK core Kconfig option to bool, to aid when
other core code depends on it"
* tag 'hwlock-v4.15' of git://github.com/andersson/remoteproc:
hwspinlock: Change hwspinlock to a bool
This adds an interface for configuring Qualcomm's "secure SMMU" and adds
support for booting the modem Hexagon on MSM8996.
Two new debugfs entries are added in the remoteproc core to introspect the list
of memory carveouts and the loaded resource table.
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Merge tag 'rproc-v4.15' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This adds an interface for configuring Qualcomm's "secure SMMU" and
adds support for booting the modem Hexagon on MSM8996.
Two new debugfs entries are added in the remoteproc core to introspect
the list of memory carveouts and the loaded resource table"
* tag 'rproc-v4.15' of git://github.com/andersson/remoteproc:
remoteproc: qcom: Fix error handling paths in order to avoid memory leaks
remoteproc: qcom: Drop pr_err in q6v5_xfer_mem_ownership()
remoteproc: debug: add carveouts list dump feature
remoteproc: debug: add resource table dump feature
remoteproc: qcom: Add support for mss remoteproc on msm8996
remoteproc: qcom: Make secure world call for mem ownership switch
remoteproc: qcom: refactor mss fw image loading sequence
firmware: scm: Add new SCM call API for switching memory ownership
This turn RPMSG_VIRTIO into a user selectable config, fixes a few bugs in GLINK
and provides the support for specifying initial buffer sizes for GLINK
channels.
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Merge tag 'rpmsg-v4.15' of git://github.com/andersson/remoteproc
Pull rpmsg updates from Bjorn Andersson:
- turn RPMSG_VIRTIO into a user selectable config
- fix few bugs in GLINK
- provide the support for specifying initial buffer sizes for GLINK
channels.
* tag 'rpmsg-v4.15' of git://github.com/andersson/remoteproc:
rpmsg: glink: The mbox client knows_txdone
rpmsg: glink: Add missing MODULE_LICENSE
rpmsg: glink: Use best fit intent during tx
rpmsg: glink: Add support to preallocate intents
dt-bindings: soc: qcom: Support GLINK intents
rpmsg: glink: Initialize the "intent_req_comp" completion variable
rpmsg: Allow RPMSG_VIRTIO to be enabled via menuconfig or defconfig
large change that introduces runtime PM support to the clk framework. Now we
properly call runtime PM operations on the device providing a clk when the clk
is in use. This helps on SoCs where the clks provided by a device need
something to be powered on before using the clks, like power domains or
regulators. It also helps power those things down when clks aren't in use. The
other core change is a devm API addition for clk providers so we can get rid of
a bunch of clk driver remove functions that are just doing
of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and smattering
of non-critical fixes to existing drivers. The biggest diff is support for
Mediatek MT2712 and MT7622 SoCs, but those patches really just add a bunch
of data.
By the way, we're trying something new here where we build the tree up with
topic branches. We plan to work this into our workflow so that we don't step
on each other's toes, and so the fixes branch can be merged on an as-needed
basis.
Core:
- Runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- Runtime PM support for Samsung exynos5433/exynos4412 providers
- Removal of clkdev aliases on Samsung SoCs
- Convert clk-gpio to use gpio descriptors
- Various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- Sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- Support for the second display unit clock on Renesas RZ/G1E
- Suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- New clock ids for Rockchip rk3188 and rk3368 SoCs
- Various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have two changes to the core framework this time around.
The first being a large change that introduces runtime PM support to
the clk framework. Now we properly call runtime PM operations on the
device providing a clk when the clk is in use. This helps on SoCs
where the clks provided by a device need something to be powered on
before using the clks, like power domains or regulators. It also helps
power those things down when clks aren't in use.
The other core change is a devm API addition for clk providers so we
can get rid of a bunch of clk driver remove functions that are just
doing of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and
smattering of non-critical fixes to existing drivers. The biggest diff
is support for Mediatek MT2712 and MT7622 SoCs, but those patches
really just add a bunch of data.
By the way, we're trying something new here where we build the tree up
with topic branches. We plan to work this into our workflow so that we
don't step on each other's toes, and so the fixes branch can be merged
on an as-needed basis.
Summary:
Core:
- runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- runtime PM support for Samsung exynos5433/exynos4412 providers
- removal of clkdev aliases on Samsung SoCs
- convert clk-gpio to use gpio descriptors
- various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- support for the second display unit clock on Renesas RZ/G1E
- suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- new clock ids for Rockchip rk3188 and rk3368 SoCs
- various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
clk: stm32h7: fix test of clock config
clk: pxa: fix building on older compilers
clk: sunxi-ng: a83t: Fix i2c buses bits
clk: ti: dra7-atl-clock: fix child-node lookups
clk: qcom: common: fix legacy board-clock registration
clk: uniphier: fix DAPLL2 clock rate of Pro5
clk: uniphier: fix parent of miodmac clock data
clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu'
clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep()
clk: hi3660: fix incorrect uart3 clock freqency
clk: kona-setup: Delete error messages for failed memory allocations
ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
clk: cdce925: remove redundant check for non-null parent_name
clk: versatile: Improve sizeof() usage
clk: versatile: Delete error messages for failed memory allocations
clk: ux500: Improve sizeof() usage
clk: ux500: Delete error messages for failed memory allocations
clk: spear: Delete error messages for failed memory allocations
clk: ti: Delete error messages for failed memory allocations
clk: mmp: Adjust checks for NULL pointers
...
"obj-y += foo/" syntax requires Kbuild to visit the "foo" subdirectory
and link built-in.o from that directory. This means foo/Makefile is
responsible for creating built-in.o even if there is no object to
link (in this case, built-in.o is an empty archive).
We have had several fixups like commit 4b024242e8 ("kbuild: Fix
linking error built-in.o no such file or directory"), then ended up
with a complex condition as follows:
ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),)
builtin-target := $(obj)/built-in.o
endif
We still have more cases not covered by the above, so we need to add
obj- := dummy.o
in several places just for creating empty built-in.o.
A key point is, the parent Makefile knows whether built-in.o is needed
or not. If a subdirectory needs to create built-in.o, its parent can
tell the fact when descending.
If non-empty $(need-builtin) flag is passed from the parent, built-in.o
should be created. $(obj-y) should be still checked to support the
single target "%/". All of ugly tricks will go away.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Most places use pwd and rely on $PATH lookup. Moving the remaining
absolute path /bin/pwd users over for consistency.
Also, a reason for doing /bin/pwd -> pwd instead of the other way around
is because I believe build systems should make little assumptions on
host filesystem layout. Case in point, we do this kind of patching
already in NixOS.
Ref. commit 028568d84d
("kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)").
Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- Clean up and fix RPM package build
- Fix a warning in DEB package build
- Improve coccicheck script
- Improve some semantic patches
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Merge tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild misc updates from Masahiro Yamada:
- Clean up and fix RPM package build
- Fix a warning in DEB package build
- Improve coccicheck script
- Improve some semantic patches
* tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
docs: dev-tools: coccinelle: delete out of date wiki reference
coccinelle: orplus: reorganize to improve performance
coccinelle: use exists to improve efficiency
builddeb: Pass the kernel:debarch substvar to dpkg-genchanges
Coccinelle: use false positive annotation
coccinelle: fix verbose message about .cocci file being run
coccinelle: grep Options and Requires fields more precisely
Coccinelle: make DEBUG_FILE option more useful
coccinelle: api: detect identical chip data arrays
coccinelle: Improve setup_timer.cocci matching
Coccinelle: setup_timer: improve messages from setup_timer
kbuild: rpm-pkg: do not force -jN in submake
kbuild: rpm-pkg: keep spec file until make mrproper
kbuild: rpm-pkg: fix jobserver unavailable warning
kbuild: rpm-pkg: replace $RPM_BUILD_ROOT with %{buildroot}
kbuild: rpm-pkg: fix build error when CONFIG_MODULES is disabled
kbuild: rpm-pkg: refactor mkspec with here doc
kbuild: rpm-pkg: clean up mkspec
kbuild: rpm-pkg: install vmlinux.bz2 unconditionally
kbuild: rpm-pkg: remove ppc64 specific image handling
One of the most remarkable improvements in this cycle is, Kbuild is
now able to cache the result of shell commands. Some variables are
expensive to compute, for example, $(call cc-option,...) invokes the
compiler. It is not efficient to redo this computation every time,
even when we are not actually building anything. Kbuild creates a
hidden file ".cache.mk" that contains invoked shell commands and
their results. The speed-up should be noticeable.
Summary:
- Fix arch build issues (hexagon, sh)
- Clean up various Makefiles and scripts
- Fix wrong usage of {CFLAGS,LDFLAGS}_MODULE in arch Makefiles
- Cache variables that are expensive to compute
- Improve cc-ldopton and ld-option for Clang
- Optimize output directory creation
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Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
"One of the most remarkable improvements in this cycle is, Kbuild is
now able to cache the result of shell commands. Some variables are
expensive to compute, for example, $(call cc-option,...) invokes the
compiler. It is not efficient to redo this computation every time,
even when we are not actually building anything. Kbuild creates a
hidden file ".cache.mk" that contains invoked shell commands and their
results. The speed-up should be noticeable.
Summary:
- Fix arch build issues (hexagon, sh)
- Clean up various Makefiles and scripts
- Fix wrong usage of {CFLAGS,LDFLAGS}_MODULE in arch Makefiles
- Cache variables that are expensive to compute
- Improve cc-ldopton and ld-option for Clang
- Optimize output directory creation"
* tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits)
kbuild: move coccicheck help from scripts/Makefile.help to top Makefile
sh: decompressor: add shipped files to .gitignore
frv: .gitignore: ignore vmlinux.lds
selinux: remove unnecessary assignment to subdir-
kbuild: specify FORCE in Makefile.headersinst as .PHONY target
kbuild: remove redundant mkdir from ./Kbuild
kbuild: optimize object directory creation for incremental build
kbuild: create object directories simpler and faster
kbuild: filter-out PHONY targets from "targets"
kbuild: remove redundant $(wildcard ...) for cmd_files calculation
kbuild: create directory for make cache only when necessary
sh: select KBUILD_DEFCONFIG depending on ARCH
kbuild: fix linker feature test macros when cross compiling with Clang
kbuild: shrink .cache.mk when it exceeds 1000 lines
kbuild: do not call cc-option before KBUILD_CFLAGS initialization
kbuild: Cache a few more calls to the compiler
kbuild: Add a cache for generated variables
kbuild: add forward declaration of default target to Makefile.asm-generic
kbuild: remove KBUILD_SUBDIR_ASFLAGS and KBUILD_SUBDIR_CCFLAGS
hexagon/kbuild: replace CFLAGS_MODULE with KBUILD_CFLAGS_MODULE
...
There is no need to #define the license of the driver, just put it in
the MODULE_LICENSE() line directly as a text string.
This allows tools that check that the module license matches the source
code license to work properly, as there is no need to unwind the
unneeded dereference.
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andreas Kemnade <andreas@kemnade.info>
Cc: Johan Hovold <johan@kernel.org>
Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the dma_mapping_error call to use the correct dma_addr
which is inside the ibmvnic_vpd struct. Moreover, it fixes an uninitialized
warning regarding a local dma_addr variable which is not used anymore.
Fixes: 4e6759be28 ("ibmvnic: Feature implementation of VPD for the ibmvnic driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When call to register_netdevice() (called from ipvlan_link_new()) fails,
we call ipvlan_uninit() (through ndo_uninit()) to destroy the ipvlan
port. After returning unsuccessfully from register_netdevice() we go
ahead and call ipvlan_port_destroy() again which causes NULL pointer
dereference panic. Fix the issue by making ipvlan_init() and
ipvlan_uninit() call symmetric.
The ipvlan port will now be created inside ipvlan_init() and will be
destroyed in ipvlan_uninit().
Fixes: 2ad7bf3638 (ipvlan: Initial check-in of the IPVLAN driver)
Signed-off-by: Girish Moodalbail <girish.moodalbail@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now when ip route flush cache and it turn out all fnhe_genid != genid.
If a redirect/pmtu icmp packet comes and the old fnhe is found and all
it's members but fnhe_genid will be updated.
Then next time when it looks up route and tries to rebind this fnhe to
the new dst, the fnhe will be flushed due to fnhe_genid != genid. It
causes this redirect/pmtu icmp packet acutally not to be applied.
This patch is to also reset fnhe_genid when updating a route cache.
Fixes: 5aad1de5ea ("ipv4: use separate genid for next hop exceptions")
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
