[ Upstream commit c29de84149aba5f74e87b6491c13ac7203c12f55 ]

The PCI port driver saves the PCI state after initializing the device with
the applicable service devices.  This was, however, before the service
drivers were even registered because PCI probe happens before the
device_initcall initialized those service drivers.  The config space state
that the services set up were not being saved.  The end result would cause
PCI devices to not react to events that the drivers think they did if the
PCI state ever needed to be restored.

Fix this by changing the service drivers from using the init calls to
having the portdrv driver calling the services directly.  This will get the
state saved as desired, while making the relationship between the port
driver and the services under it more explicit in the code.
Signed-off-by: NKeith Busch <keith.busch@intel.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NSinan Kaya <okaya@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit a9f36656b519a9a21309793c306941a3cd0eeb8f ]

With introduction of MC-aware mode to mlxsw, it became necessary to
configure TCs above 7 as well. There is now code in mlxsw to disable ETS
for these higher classes, but disablement of max shaper was neglected.

By default, max shaper is currently disabled to begin with, so the
problem is just cosmetic. However, for symmetry, do like we do for ETS
configuration, and call mlxsw_sp_port_ets_maxrate_set() for both TC i
and i + 8.
Signed-off-by: NPetr Machata <petrm@mellanox.com>
Reviewed-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 6c3efbe77bc78bf49db851aec7f385be475afca6 ]

The ucode chunk might be relatively large and the allocation with
kmalloc() may fail occasionally.  Since the data isn't DMA-transferred
but by manual loops, we can use vmalloc instead of kmalloc.
For a better performance, though, kvmalloc() would be the best choice
in such a case, so let's replace with it.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1103431Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 59c2a30d36c8ae430d26a902c4c9665ea33ccee5 ]

When obtaining the firmware capability a buffer is provided of 512
bytes. However, if all features in firmware are supported the buffer
needs to be 565 bytes as otherwise truncated information is retrieved
from firmware. Increasing the buffer to 768 bytes on stack.
Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: NFranky Lin <franky.lin@broadcom.com>
Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 26f4414a45b808f83d42d6fd2fbf4a59ef25e84b ]

Correct stack frame overhead for 31-bit vdso, which should be 96 rather
then 160. This is done by reusing STACK_FRAME_OVERHEAD definition which
contains correct value based on build flags. This fixes stack unwinding
within vdso code for 31-bit processes. While at it replace all hard coded
stack frame overhead values with the same definition in vdso64 as well.
Reviewed-by: NHendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: NVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit d1befa65823e9c6d013883b8a41d081ec338c489 ]

vdso_fault used is_compat_task function (on s390 it tests "current"
thread_info flags) to distinguish compat tasks and map 31-bit vdso
pages. But "current" task might not correspond to mm context.

When 31-bit compat inferior is executed under gdb, gdb does
PTRACE_PEEKTEXT on vdso page, causing vdso_fault with "current" being
64-bit gdb process. So, 31-bit inferior ends up with 64-bit vdso mapped.

To avoid this problem a new compat_mm flag has been introduced into
mm context. This flag is used in vdso_fault and vdso_mremap instead
of is_compat_task.
Signed-off-by: NVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 1c472d46283263497adccd7a0bec64ee2f9c09e5 ]

The AP bus scan is aborted before doing anything worth mentioning if
ap_select_domain() fails, e.g. if the ap_rights.aqm mask is all zeros.
As the result of this the ap bus fails to manage (e.g. create and
register) devices like it is supposed to.

Let us make ap_scan_bus() work even if ap_select_domain() can't select a
default domain. Let's also make ap_select_domain() return void, as there
are no more callers interested in its return value.
Signed-off-by: NHalil Pasic <pasic@linux.ibm.com>
Reported-by: NMichael Mueller <mimu@linux.ibm.com>
Fixes: 7e0bdbe5 "s390/zcrypt: AP bus support for alternate driver(s)"
[freude@linux.ibm.com: title and patch header slightly modified]
Signed-off-by: NHarald Freudenberger <freude@linux.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 0e59088e7ff7aeda49dedadbf0e967761b909ad8 ]

Add parameter 'tag' to function usbtmc_ioctl_abort_bulk_out_tag()
for future versions.

Use USBTMC_BUFSIZE (4k) instead of USBTMC_SIZE_IOBUFFER (2k).
Using USBTMC_SIZE_IOBUFFER is deprecated.

Insert a sleep of 50 ms between subsequent
CHECK_ABORT_BULK_OUT_STATUS control requests to avoid stressing
the instrument with repeated requests.

Use common macro USB_CTRL_GET_TIMEOUT instead of USBTMC_TIMEOUT.
Signed-off-by: NGuido Kiener <guido.kiener@rohde-schwarz.com>
Reviewed-by: NSteve Bayless <steve_bayless@keysight.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 59739131e0ca06db7560f9073fff2fb83f6bc2a5 ]

At OTG work running time, it's possible that several events need to be
addressed (e.g. ID and VBUS events). The current implementation handles
only one event at a time which leads to ignoring the other one. Fix it.
Signed-off-by: NLoic Poulain <loic.poulain@linaro.org>
Signed-off-by: NPeter Chen <peter.chen@nxp.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 1dedbdf2bbb1ede8d96f35f9845ecae179dc1988 ]

When initializing the USB subsystem before starting the kernel,
OTG overcurrent detection is disabled. In case the OTG polarity of
overcurrent is low active, the overcurrent detection is never enabled
again and events cannot be reported as expected. Because imx usb
overcurrent polarity is low active by default, only detection needs
to be enable in usbmisc init function.
Signed-off-by: NNicolas Adell <nicolas.adell@actia.fr>
Signed-off-by: NPeter Chen <peter.chen@nxp.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 23d9f5531c7c28546954b0bf332134a9b8a38c0a ]

NFP supports fairly enormous ring sizes (up to 256k descriptors).
In commit 46627170 ("nfp: use kvcalloc() to allocate SW buffer
descriptor arrays") we have started using kvcalloc() functions to
make sure the allocation of software state arrays doesn't hit
the MAX_ORDER limit.  Unfortunately, we can't use virtual mappings
for the DMA region holding HW descriptors.  In case this allocation
fails instead of the generic (and fairly scary) warning/splat in
the logs print a helpful message explaining what happened and
suggesting how to fix it.
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 32c7fbc8ffd752c6aa05d2dd7c13b0f0aa00ddaa ]

So far all the places calling hclge_tm_q_to_qs_map_cfg() are assigning
an u16 type value to "q_id", and in the processing of
hclge_tm_q_to_qs_map_cfg(), it also converts the "q_id" to le16.

The max tqp number for pf can be more than 256, we should use "u16" to
store the queue id, instead of "u8", which may cause data lost.

Fixes: 84844054 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit d9f28fc23d544f673d087b00a6c7132d972f89ea ]

When roce is loaded before nic, the roce client will not be initialized
until nic client is initialized, but roce init flag is set before it.
Furthermore, in this case of nic initialized success and roce failed,
the nic init flag is not set, and roce init flag is not cleared.

This patch fixes it by set init flag only after the client is initialized
successfully.

Fixes: e2cb1dec ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 49dd80541c75c2f21c28bbbdd958e993b55bf97b ]

If initialize client failed or finish uninitializing client, we should
clear the client pointer. It may cause unexpected result when use
uninitialized client. Meanwhile, we also should check whether client
exist when uninitialize it.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 37dc9cdbdc1bd64bd3b6ea285a9c2e811404dc82 ]

According to hardware's description, the head pointer register should
be written before the tail pointer register while initializing the vf
command queue. Otherwise, it may trigger an interrupt even though there
is no command received.

Fixes: fedd0c15 ("net: hns3: Add HNS3 VF IMP(Integrated Management Proc) cmd interface")
Signed-off-by: NJian Shen <shenjian15@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit fd8133148eb6a733f9cfdaecd4d99f378e21d582 ]

The function of genphy_read_status is that reading phy information
from HW and using these information to update SW variable. If user
is using ethtool to setting the speed of phy and service task is calling
by hclge_get_mac_phy_link, the result of speed setting is uncertain.
Because ethtool cmd will modified phydev and hclge_get_mac_phy_link also
will modified phydev.

Because phy state machine will update phy link periodically, we can
just use phydev->link to check the link status. This patch removes
function call of genphy_read_status. To ensure accuracy, this patch
adds a phy state check. If phy state is not PHY_RUNNING, we consider
link is down. Because in some scenarios, phydev->link may be link up,
but phy state is not PHY_RUNNING. This is just an intermediate state.
In fact, the link is not ready yet.

Fixes: 46a3df9f ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: NFuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: NPeng Li <lipeng321@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 0e0cc31f6999df18bb5cfd0bd83c892ed5633975 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Acked-by: NShannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit fe72352e37ae8478f4c97975a9831f0c50f22e73 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 0c13b8d1aee87c35a2fbc1d85a1f766227cf54b5 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 81255af8d9d5565004792c295dde49344df450ca ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit bacade822524e02f662d88f784d2ae821a5546fb ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit f03508ce3f9650148262c176e0178413e16c902b ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 70afb58e9856a70ff9e45760af2d0ebeb7c46ac2 ]

The Marvell PPv2.2 engine only has 8 Rx queues per CPU, while PPv2.1 has
16 of them. This patch updates the code so that the Rx queues mask width
is selected given the version of the network controller used.
Signed-off-by: NAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 079cdff3d0a09c5da10ae1be35def7a116776328 ]

This avoids getting woken up from suspend after power interruptions
when the bci wrongly thinks the battery is full just because
of input current going low because of low input power
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 8314c212f995bc0d06b54ad02ef0ab4089781540 ]

the charging current uses unsigned int variables, if we step back
if the current is still low, we would run into negative which
means setting the target to a huge value.
Better add checks here.
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 53dd9dce6979bc54d64a3a09a2fb20187a025be7 ]

The next update of libfdt has a new dependency on INT_MAX. Update the
instances of libfdt_env.h in the kernel to either include the necessary
header with the definition or define it locally.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: NRob Herring <robh@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 62287dce5d0ee207b6a09a0a1abd06b61cee1094 ]

dtc has new checks for I2C buses. Fix the warnings in unit-addresses in
the unittests.

drivers/of/unittest-data/testcases.dtb: Warning (i2c_bus_reg): /testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest14/i2c@0/test-mux-dev: I2C bus unit address format error, expected "20"
drivers/of/unittest-data/overlay_15.dtb: Warning (i2c_bus_reg): /fragment@0/__overlay__/test-unittest15/i2c@0/test-mux-dev: I2C bus unit address format error, expected "20"

Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: NRob Herring <robh@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 3d2556992a878a2210d3be498416aee39e0c32aa ]

The dev_list needs to be protected with a lock, else we may have
simultaneous access (addition/removal) to it and that would be racy.
Extend scope of the opp_table lock to protect dev_list as well.
Tested-by: NNiklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit c890ecdbe93d482512a911b299bfb009780a29c2 ]

dtc has new checks for I2C and SPI buses. Fix the warnings in node names
and unit-addresses.

arch/arm/boot/dts/at91-dvk_som60.dtb: Warning (i2c_bus_reg): /ahb/apb/i2c@f0018000/eeprom@87: I2C bus unit address format error, expected "57"
arch/arm/boot/dts/at91-dvk_som60.dtb: Warning (i2c_bus_reg): /ahb/apb/i2c@f0018000/ft5426@56: I2C bus unit address format error, expected "38"
arch/arm/boot/dts/at91-vinco.dtb: Warning (i2c_bus_reg): /ahb/apb/i2c@f8024000/rtc@64: I2C bus unit address format error, expected "32"
arch/arm/boot/dts/at91sam9260ek.dtb: Warning (spi_bus_reg): /ahb/apb/spi@fffc8000/mtd_dataflash@0: SPI bus unit address format error, expected "1"
arch/arm/boot/dts/at91sam9g20ek_2mmc.dtb: Warning (spi_bus_reg): /ahb/apb/spi@fffc8000/mtd_dataflash@0: SPI bus unit address format error, expected "1"
arch/arm/boot/dts/at91sam9g20ek.dtb: Warning (spi_bus_reg): /ahb/apb/spi@fffc8000/mtd_dataflash@0: SPI bus unit address format error, expected "1"
arch/arm/boot/dts/at91sam9261ek.dtb: Warning (spi_bus_reg): /ahb/apb/spi@fffc8000/tsc2046@0: SPI bus unit address format error, expected "2"
Signed-off-by: NRob Herring <robh@kernel.org>
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 802fa45cd320de319e86c93bca72abec028ba059 ]

Commit f27b4746 ("i40iw: add connection management code") uses an
incorrect rcu iterator, whilst holding the rtnl_lock. Since the
critical region invokes i40iw_manage_qhash(), which is a sleeping
function, the rcu locking and traversal cannot be used.
Signed-off-by: NHåkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit e00d93ac9a189673028ac125a74b9bc8ae73eebc ]

This re-applies commit b91c1e3e ("powerpc: Fix duplicate const
clang warning in user access code") (Jun 2015) which was undone in
commits:
  f2ca8090 ("powerpc/sparse: Constify the address pointer in __get_user_nosleep()") (Feb 2017)
  d466f6c5 ("powerpc/sparse: Constify the address pointer in __get_user_nocheck()") (Feb 2017)
  f84ed59a ("powerpc/sparse: Constify the address pointer in __get_user_check()") (Feb 2017)

We see a large number of duplicate const errors in the user access
code when building with llvm/clang:

  include/linux/pagemap.h:576:8: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
        ret = __get_user(c, uaddr);

The problem is we are doing const __typeof__(*(ptr)), which will hit
the warning if ptr is marked const.

Removing const does not seem to have any effect on GCC code
generation.
Signed-off-by: NAnton Blanchard <anton@samba.org>
Signed-off-by: NJoel Stanley <joel@jms.id.au>
Reviewed-by: NNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 85a88cabad57d26d826dd94ea34d3a785824d802 ]

When performing partition migrations all present CPUs must be online
as all present CPUs must make the H_JOIN call as part of the migration
process. Once all present CPUs make the H_JOIN call, one CPU is returned
to make the rtas call to perform the migration to the destination system.

During testing of migration and changing the SMT state we have found
instances where CPUs are offlined, as part of the SMT state change,
before they make the H_JOIN call. This results in a hung system where
every CPU is either in H_JOIN or offline.

To prevent this this patch disables CPU hotplug during the migration
process.
Signed-off-by: NNathan Fontenot <nfont@linux.vnet.ibm.com>
Reviewed-by: NTyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 063b8b1251fd069f3740339fca56119d218f11ba ]

The updates to powerpc numa and memory hotplug code now use the
in-kernel LMB array instead of the device tree. This change allows the
pseries memory DLPAR code to only update the device tree once after
successfully handling a DLPAR request.

Prior to the in-kernel LMB array, the numa code looked up the affinity
for memory being added in the device tree, the code now looks this up
in the LMB array. This change means the memory hotplug code can just
update the affinity for an LMB in the LMB array instead of updating
the device tree.

This also provides a savings in kernel memory. When updating the
device tree old properties are never free'ed since there is no
usecount on properties. This behavior leads to a new copy of the
property being allocated every time a LMB is added or removed (i.e. a
request to add 100 LMBs creates 100 new copies of the property). With
this update only a single new property is created when a DLPAR request
completes successfully.
Signed-off-by: NNathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 09b4438db13fa83b6219aee5993711a2aa2a0c64 ]

This causes SLB alloation to start 1 beyond the start of the SLB.
There is no real problem because after it wraps it stats behaving
properly, it's just surprisig to see when looking at SLB traces.
Signed-off-by: NNicholas Piggin <npiggin@gmail.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 44d947eff19d64384efc06069509db7a0a1103b0 ]

There are cases where the test is not expecting to have the transaction
aborted, but, the test process might have been rescheduled, either in the
OS level or by KVM (if it is running on a KVM guest machine). The process
reschedule will cause a treclaim/recheckpoint which will cause the
transaction to doom, aborting the transaction as soon as the process is
rescheduled back to the CPU. This might cause the test to fail, but this is
not a failure in essence.

If that is the case, TEXASR[FC] is indicated with either
TM_CAUSE_RESCHEDULE or TM_CAUSE_KVM_RESCHEDULE for KVM interruptions.

In this scenario, ignore these two failures and avoid the whole test to
return failure.
Signed-off-by: NBreno Leitao <leitao@debian.org>
Reviewed-by: NGustavo Romero <gromero@linux.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 984ecdd68de0fa1f63ce205d6c19ef5a7bc67b40 ]

The tbl pointer is being derefenced by IOMMU_PAGE_SIZE prior the check
if it is not NULL.

Just moving the dereference code to after the check, where there will
be guarantee that 'tbl' will not be NULL.
Signed-off-by: NBreno Leitao <leitao@debian.org>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 94b2bb28dbb43fcb943d5275ab19fd5a4972bedb ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit ac1172dea10b6ba51de9346d3130db688b5196c5 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit c9c3941186c5637caed131c4f4064411d6882299 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, also the implementation in this
driver has returns 'netdev_tx_t' value, so just change the function
return type to netdev_tx_t.

Found by coccinelle.
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>

[ Upstream commit 060e8fb53fe3455568982d10ab8c3dd605565049 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/char/ipmi/ipmi_msghandler.c: In function 'ipmi_set_my_LUN':
drivers/char/ipmi/ipmi_msghandler.c:1335:13: warning:
 variable 'rv' set but not used [-Wunused-but-set-variable]
  int index, rv = 0;

'rv' should be the correct return value.

Fixes: 048f7c3e ("ipmi: Properly release srcu locks on error conditions")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NCorey Minyard <cminyard@mvista.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>