| Commit message (Collapse) | Author | Age | Files | Lines |
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For software initiated address translation, when domain type is
IOMMU_DOMAIN_IDENTITY i.e SMMU is bypassed, mimic HW behavior
i.e return the same IOVA as translated address.
This patch is an extension to Will Deacon's patchset
"Implement SMMU passthrough using the default domain".
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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From code "SMR mask 0x%x out of range for SMMU", so, we need to use mask, not
sid.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
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The recursive nature of __arm_lpae_{map,unmap}() means that
ARM_LPAE_BLOCK_SIZE() is evaluated for every level, including those
where block mappings aren't possible. This in itself is harmless enough,
as we will only ever be called with valid sizes from the pgsize_bitmap,
and thus always recurse down past any imaginary block sizes. The only
problem is that most of those imaginary sizes overflow the type used for
the calculation, and thus trigger warnings under UBsan:
[ 63.020939] ================================================================================
[ 63.021284] UBSAN: Undefined behaviour in drivers/iommu/io-pgtable-arm.c:312:22
[ 63.021602] shift exponent 39 is too large for 32-bit type 'int'
[ 63.021909] CPU: 0 PID: 1119 Comm: lkvm Not tainted 4.7.0-rc3+ #819
[ 63.022163] Hardware name: FVP Base (DT)
[ 63.022345] Call trace:
[ 63.022629] [<ffffff900808f258>] dump_backtrace+0x0/0x3a8
[ 63.022975] [<ffffff900808f614>] show_stack+0x14/0x20
[ 63.023294] [<ffffff90086bc9dc>] dump_stack+0x104/0x148
[ 63.023609] [<ffffff9008713ce8>] ubsan_epilogue+0x18/0x68
[ 63.023956] [<ffffff9008714410>] __ubsan_handle_shift_out_of_bounds+0x18c/0x1bc
[ 63.024365] [<ffffff900890fcb0>] __arm_lpae_map+0x720/0xae0
[ 63.024732] [<ffffff9008910170>] arm_lpae_map+0x100/0x190
[ 63.025049] [<ffffff90089183d8>] arm_smmu_map+0x78/0xc8
[ 63.025390] [<ffffff9008906c18>] iommu_map+0x130/0x230
[ 63.025763] [<ffffff9008bf7564>] vfio_iommu_type1_attach_group+0x4bc/0xa00
[ 63.026156] [<ffffff9008bf3c78>] vfio_fops_unl_ioctl+0x320/0x580
[ 63.026515] [<ffffff9008377420>] do_vfs_ioctl+0x140/0xd28
[ 63.026858] [<ffffff9008378094>] SyS_ioctl+0x8c/0xa0
[ 63.027179] [<ffffff9008086e70>] el0_svc_naked+0x24/0x28
[ 63.027412] ================================================================================
Perform the shift in a 64-bit type to prevent the theoretical overflow
and keep the peace. As it turns out, this generates identical code for
32-bit ARM, and marginally shorter AArch64 code, so it's good all round.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The IOMMU core currently initialises the default domain for each group
to IOMMU_DOMAIN_DMA, under the assumption that devices will use
IOMMU-backed DMA ops by default. However, in some cases it is desirable
for the DMA ops to bypass the IOMMU for performance reasons, reserving
use of translation for subsystems such as VFIO that require it for
enforcing device isolation.
Rather than modify each IOMMU driver to provide different semantics for
DMA domains, instead we introduce a command line parameter that can be
used to change the type of the default domain. Passthrough can then be
specified using "iommu.passthrough=1" on the kernel command line.
Signed-off-by: Will Deacon <will.deacon@arm.com>
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In preparation for allowing the default domain type to be overridden,
this patch adds support for IOMMU_DOMAIN_IDENTITY domains to the
ARM SMMUv3 driver.
An identity domain is created by placing the corresponding stream table
entries into "bypass" mode, which allows transactions to flow through
the SMMU without any translation.
Signed-off-by: Will Deacon <will.deacon@arm.com>
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arm_smmu_install_ste_for_dev cannot fail and always returns 0, however
the fact that it returns int means that callers end up implementing
redundant error handling code which complicates STE tracking and is
never executed.
This patch changes the return type of arm_smmu_install_ste_for_dev
to void, to make it explicit that it cannot fail.
Signed-off-by: Will Deacon <will.deacon@arm.com>
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In preparation for allowing the default domain type to be overridden,
this patch adds support for IOMMU_DOMAIN_IDENTITY domains to the
ARM SMMU driver.
An identity domain is created by placing the corresponding S2CR
registers into "bypass" mode, which allows transactions to flow through
the SMMU without any translation.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The ARM SMMU drivers provide a DOMAIN_ATTR_NESTING domain attribute,
which allows callers of the IOMMU API to request that the page table
for a domain is installed at stage-2, if supported by the hardware.
Since setting this attribute only makes sense for UNMANAGED domains,
this patch returns -ENODEV if the domain_{get,set}_attr operations are
called on other domain types.
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The current SMR masking support using a 2-cell iommu-specifier is
primarily intended to handle individual masters with large and/or
complex Stream ID assignments; it quickly gets a bit clunky in other SMR
use-cases where we just want to consistently mask out the same part of
every Stream ID (e.g. for MMU-500 configurations where the appended TBU
number gets in the way unnecessarily). Let's add a new property to allow
a single global mask value to better fit the latter situation.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Nipun Gupta <nipun.gupta@nxp.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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On relatively slow development platforms and software models, the
inefficiency of our TLB sync loop tends not to show up - for instance on
a Juno r1 board I typically see the TLBI has completed of its own accord
by the time we get to the sync, such that the latter finishes instantly.
However, on larger systems doing real I/O, it's less realistic for the
TLBs to go idle immediately, and at that point falling into the 1MHz
polling loop turns out to throw away performance drastically. Let's
strike a balance by polling more than once between pauses, such that we
have much more chance of catching normal operations completing before
committing to the fixed delay, but also backing off exponentially, since
if a sync really hasn't completed within one or two "reasonable time"
periods, it becomes increasingly unlikely that it ever will.
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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TLB synchronisation typically involves the SMMU blocking all incoming
transactions until the TLBs report completion of all outstanding
operations. In the common SMMUv2 configuration of a single distributed
SMMU serving multiple peripherals, that means that a single unmap
request has the potential to bring the hammer down on the entire system
if synchronised globally. Since stage 1 contexts, and stage 2 contexts
under SMMUv2, offer local sync operations, let's make use of those
wherever we can in the hope of minimising global disruption.
To that end, rather than add any more branches to the already unwieldy
monolithic TLB maintenance ops, break them up into smaller, neater,
functions which we can then mix and match as appropriate.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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ARM_AMMU_CB() is calculated relative to ARM_SMMU_CB_BASE(), but the
latter is never of use on its own, and what we end up with is the same
ARM_SMMU_CB_BASE() + ARM_AMMU_CB() expression being duplicated at every
callsite. Folding the two together gives us a self-contained context
bank accessor which is much more pleasant to work with.
Secondly, we might as well simplify CB_BASE itself at the same time.
We use the address space size for its own sake precisely once, at probe
time, and every other usage is to dynamically calculate CB_BASE over
and over and over again. Let's flip things around so that we just
maintain the CB_BASE address directly.
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Calculating ASIDs/VMIDs dynamically from arm_smmu_cfg was a neat trick,
but the global uniqueness workaround makes it somewhat more awkward, and
means we end up having to pass extra state around in certain cases just
to keep a handle on the offset.
We already have 16 bits going spare in arm_smmu_cfg; let's just
precalculate an ASID/VMID, plop it in there, and tidy up the users
accordingly. We'd also need something like this anyway if we ever get
near to thinking about SVM, so it's no bad thing.
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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16-bit ASID should be enabled before initializing TTBR0/1,
otherwise only LSB 8-bit ASID will be considered. Hence
moving configuration of TTBCR register ahead of TTBR0/1
while initializing context bank.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
[will: rewrote comment]
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Firmware is responsible for properly enabling smmu workarounds. Print
a message for better diagnostics when Cavium erratum 27704 was
detected.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"A couple of minor fixes for 4.11:
- array bound fix for __get_unmap_pool()
- cyclic period splitting for bcm2835"
* tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
dmaengine: bcm2835: Fix cyclic DMA period splitting
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This fixes the following warning when building with clang and
CONFIG_DMA_ENGINE_RAID=n :
drivers/dma/dmaengine.c:1102:11: error: array index 2 is past the end of the array (which contains 1 element) [-Werror,-Warray-bounds]
return &unmap_pool[2];
^ ~
drivers/dma/dmaengine.c:1083:1: note: array 'unmap_pool' declared here
static struct dmaengine_unmap_pool unmap_pool[] = {
^
drivers/dma/dmaengine.c:1104:11: error: array index 3 is past the end of the array (which contains 1 element) [-Werror,-Warray-bounds]
return &unmap_pool[3];
^ ~
drivers/dma/dmaengine.c:1083:1: note: array 'unmap_pool' declared here
static struct dmaengine_unmap_pool unmap_pool[] = {
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The code responsible for splitting periods into chunks that
can be handled by the DMA controller missed to update total_len,
the number of bytes processed in the current period, when there
are more chunks to follow.
Therefore total_len was stuck at 0 and the code didn't work at all.
This resulted in a wrong control block layout and audio issues because
the cyclic DMA callback wasn't executing on period boundaries.
Fix this by adding the missing total_len update.
Signed-off-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"This update provides:
- make the scheduler clock switch to unstable mode smooth so the
timestamps stay at microseconds granularity instead of switching to
tick granularity.
- unbreak perf test tsc by taking the new offset into account which
was added in order to proveide better sched clock continuity
- switching sched clock to unstable mode runs all clock related
computations which affect the sched clock output itself from a work
queue. In case of preemption sched clock uses half updated data and
provides wrong timestamps. Keep the math in the protected context
and delegate only the static key switch to workqueue context.
- remove a duplicate header include"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/headers: Remove duplicate #include <linux/sched/debug.h> line
sched/clock: Fix broken stable to unstable transfer
sched/clock, x86/perf: Fix "perf test tsc"
sched/clock: Fix clear_sched_clock_stable() preempt wobbly
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Vito Caputo reported that the sched.h split-up series
introduced a duplicate #include <linux/sched/debug.h> line
in drivers/tty/vt/keyboard.c.
Remove it.
Reported-by: Vito Caputo <vcaputo@pengaru.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fix from Thomas Gleixner:
"Downgrade the missing ESRT header printk to warning level and remove a
useless error printk which just generates noise for no value"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/esrt: Cleanup bad memory map log messages
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The Intel Compute Stick STCK1A8LFC and Weibu F3C platforms both
log 2 error messages during boot:
efi: requested map not found.
esrt: ESRT header is not in the memory map.
Searching the web, this seems to affect many other platforms too.
Since these messages are logged as errors, they appear on-screen during
the boot process even when using the "quiet" boot parameter used by
distros.
Demote the ESRT error to a warning so that it does not appear on-screen,
and delete the error logging from efi_mem_desc_lookup; both callsites
of that function log more specific messages upon failure.
Out of curiosity I looked closer at the Weibu F3C. There is no entry in
the UEFI-provided memory map which corresponds to the ESRT pointer, but
hacking the code to map it anyway, the ESRT does appear to be valid with
2 entries.
Signed-off-by: Daniel Drake <drake@endlessm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Acked-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two small fixes for the new CLKEVT_OF infrastructure"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vmlinux.lds: Add __clkevt_of_table to kernel
clockevents: Fix syntax error in clkevt-of macro
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The patch fix syntax errors introduced by commit 0c8893c9095d
("clockevents: Add a clkevt-of mechanism like clksrc-of").
Fixes: 0c8893c9095d ("clockevents: Add a clkevt-of mechanism like clksrc-of")
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"Two small fixlets:
- select a required Kconfig to make the MVEBU driver compile
- add the missing MIPS local GIC interrupts which prevent drivers to
probe successfully"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/mips-gic: Fix Local compare interrupt
irqchip/mvebu-odmi: Select GENERIC_MSI_IRQ_DOMAIN
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git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier
- Fix mvebu-odmi dependency selection
- Fix mips-gic virtual/hw mapping
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Commit 4cfffcfa5106 ("irqchip/mips-gic: Fix local interrupts") added
mapping of several local interrupts during initialisation of the gic
driver. This associates virq numbers with these interrupts.
Unfortunately, as not all of the interrupts are mapped in hardware
order, when drivers subsequently request these interrupts they conflict
with the mappings that have already been set up. For example, this
manifests itself in the gic clocksource driver, which fails to probe
with the message:
clocksource: GIC: mask: 0xffffffffffffffff max_cycles: 0x7350c9738,
max_idle_ns: 440795203769 ns
GIC timer IRQ 25 setup failed: -22
This is because virq 25 (the correct IRQ number specified via device
tree) was allocated to the PERFCTR interrupt (and 24 to the timer, 26 to
the FDC). To fix this, map all of these local interrupts in the hardware
order so as to associate their virq numbers with the correct hw
interrupts.
Fixes: 4cfffcfa5106 ("irqchip/mips-gic: Fix local interrupts")
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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This driver uses the MSI domain but has no strict dependency on PCI_MSI, so we
may run into a build failure when CONFIG_GENERIC_MSI_IRQ_DOMAIN is disabled:
drivers/irqchip/irq-mvebu-odmi.c:152:15: error: variable 'odmi_msi_ops' has initializer but incomplete type
static struct msi_domain_ops odmi_msi_ops = {
^~~~~~~~~~~~~~
drivers/irqchip/irq-mvebu-odmi.c:155:15: error: variable 'odmi_msi_domain_info' has initializer but incomplete type
static struct msi_domain_info odmi_msi_domain_info = {
^~~~~~~~~~~~~~~
drivers/irqchip/irq-mvebu-odmi.c:156:3: error: 'struct msi_domain_info' has no member named 'flags'
.flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
^~~~~
drivers/irqchip/irq-mvebu-odmi.c:156:12: error: 'MSI_FLAG_USE_DEF_DOM_OPS' undeclared here (not in a function)
.flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/irqchip/irq-mvebu-odmi.c:156:39: error: 'MSI_FLAG_USE_DEF_CHIP_OPS' undeclared here (not in a function); did you mean 'MSI_FLAG_USE_DEF_DOM_OPS'?
Selecting the option from this driver seems to solve this nicely, though I could
not find any other instance of this in irqchip drivers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Thirteen small fixes: The hopefully final effort to get the lpfc nvme
kconfig problems sorted, there's one important sg fix (user can induce
read after end of buffer) and one minor enhancement (adding an extra
PCI ID to qedi). The rest are a set of minor fixes, which mostly occur
as user visible in error legs or on specific devices"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: remove the duplicated checking for supporting clkscaling
scsi: lpfc: fix building without debugfs support
scsi: lpfc: Fix PT2PT PRLI reject
scsi: hpsa: fix volume offline state
scsi: libsas: fix ata xfer length
scsi: scsi_dh_alua: Warn if the first argument of alua_rtpg_queue() is NULL
scsi: scsi_dh_alua: Ensure that alua_activate() calls the completion function
scsi: scsi_dh_alua: Check scsi_device_get() return value
scsi: sg: check length passed to SG_NEXT_CMD_LEN
scsi: ufshcd-platform: remove the useless cast in ERR_PTR/IS_ERR
scsi: qedi: Add PCI device-ID for QL41xxx adapters.
scsi: aacraid: Fix potential null access
scsi: qla2xxx: Fix crash in qla2xxx_eh_abort on bad ptr
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There are same conditions for checking whether supporting clkscaling or
not. When ufshcd is supporting clkscaling, active_reqs should be
decreased by one.
[mkp: addressed comment from Bartlomiej]
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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On a randconfig build without CONFIG_SCSI_LPFC_DEBUG_FS, I ran into
multiple compile failures:
drivers/scsi/lpfc/lpfc_debugfs.h: In function 'lpfc_debug_dump_wq':
drivers/scsi/lpfc/lpfc_debugfs.h:405:15: error: 'DUMP_FCP' undeclared (first use in this function); did you mean 'DUMP_VAR'?
drivers/scsi/lpfc/lpfc_debugfs.h:405:15: note: each undeclared identifier is reported only once for each function it appears in
drivers/scsi/lpfc/lpfc_debugfs.h:408:22: error: 'DUMP_NVME' undeclared (first use in this function); did you mean 'DUMP_NONE'?
drivers/scsi/lpfc/lpfc_nvmet.c: In function 'lpfc_nvmet_xmt_ls_rsp_cmp':
drivers/scsi/lpfc/lpfc_nvmet.c:109:2: error: implicit declaration of function 'lpfc_nvmeio_data'; did you mean 'lpfc_mem_free'? [-Werror=implicit-function-declaration]
drivers/scsi/lpfc/lpfc_nvmet.c: In function 'lpfc_nvmet_xmt_fcp_op':
drivers/scsi/lpfc/lpfc_nvmet.c:523:10: error: unused variable 'id' [-Werror=unused-variable]
They are all trivial to fix, so I'm doing it in a combined patch here.
Fixes: 1d9d5a9879ad ("scsi: lpfc: refactor debugfs queue dump routines")
Fixes: bd2cdd5e400f ("scsi: lpfc: NVME Initiator: Add debugfs support")
Fixes: 2b65e18202fd ("scsi: lpfc: NVME Target: Add debugfs support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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lpfc cannot establish connection with targets that send PRLI in P2P
configurations.
If lpfc rejects a PRLI that is sent from a target the target will not
resend and will reject the PRLI send from the initiator.
[mkp: applied by hand]
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In a previous patch a hpsa_scsi_dev_t.volume_offline update line has
been removed, so let us put it back..
Fixes: 85b29008d8 (hpsa: update check for logical volume status)
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The total ata xfer length may not be calculated properly, in that we do
not use the proper method to get an sg element dma length.
According to the code comment, sg_dma_len() should be used after
dma_map_sg() is called.
This issue was found by turning on the SMMUv3 in front of the hisi_sas
controller in hip07. Multiple sg elements were being combined into a
single element, but the original first element length was being use as
the total xfer length.
Cc: <stable@vger.kernel.org>
Fixes: ff2aeb1eb64c8a4770a6 ("libata: convert to chained sg")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Callers must provide a valid port group to alua_rtpg_queue(). Issue a
kernel warning if that is not the case.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Tang Junhui <tang.junhui@zte.com.cn>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Callers of scsi_dh_activate(), e.g. dm-mpath, assume that this function
either returns an error code or calls the completion function. Make
alua_activate() call the completion function even if scsi_device_get()
fails.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Tang Junhui <tang.junhui@zte.com.cn>
Cc: <stable@vger.kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Do not queue ALUA work nor call scsi_device_put() if the
scsi_device_get() call fails. This patch fixes the following crash:
general protection fault: 0000 [#1] SMP
RIP: 0010:scsi_device_put+0xb/0x30
Call Trace:
scsi_disk_put+0x2d/0x40
sd_release+0x3d/0xb0
__blkdev_put+0x29e/0x360
blkdev_put+0x49/0x170
dm_put_table_device+0x58/0xc0 [dm_mod]
dm_put_device+0x70/0xc0 [dm_mod]
free_priority_group+0x92/0xc0 [dm_multipath]
free_multipath+0x70/0xc0 [dm_multipath]
multipath_dtr+0x19/0x20 [dm_multipath]
dm_table_destroy+0x67/0x120 [dm_mod]
dev_suspend+0xde/0x240 [dm_mod]
ctl_ioctl+0x1f5/0x520 [dm_mod]
dm_ctl_ioctl+0xe/0x20 [dm_mod]
do_vfs_ioctl+0x8f/0x700
SyS_ioctl+0x3c/0x70
entry_SYSCALL_64_fastpath+0x18/0xad
Fixes: commit 03197b61c5ec ("scsi_dh_alua: Use workqueue for RTPG")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Tang Junhui <tang.junhui@zte.com.cn>
Cc: <stable@vger.kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The user can control the size of the next command passed along, but the
value passed to the ioctl isn't checked against the usable max command
size.
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Chang <dpf@google.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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IS_ERR and ERR_PTR already forcefully cast their argument, hence there
is no need for additional (complex) casting.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Currently, command threads fails to return ioctls commands for older
controller versions, since it returns when all the fibs have been
allocated. Another issue is even all the fibs have not been allocated,
the correct allocated fibs is not updated nor freed.
Fixes: 113156bcea9ef1e6 (scsi: aacraid: Reworked aac_command_thread)
Reported-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After a Qlogic card breaks when initializing (test case), the system can
crash in qla2xxx_eh_abort if processing anything but a scsi command type
srb.
Fixes: 1535aa75a3d8 ("scsi: qla2xxx: fix invalid DMA access after command aborts in PCI device remove")
Signed-off-by: Bill Kuzeja <william.kuzeja@stratus.com>
Acked-By: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge misc fixes from Andrew Morton:
"11 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kasan: do not sanitize kexec purgatory
drivers/rapidio/devices/tsi721.c: make module parameter variable name unique
mm/hugetlb.c: don't call region_abort if region_chg fails
kasan: report only the first error by default
hugetlbfs: initialize shared policy as part of inode allocation
mm: fix section name for .data..ro_after_init
mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()
mm: workingset: fix premature shadow node shrinking with cgroups
mm: rmap: fix huge file mmap accounting in the memcg stats
mm: move mm_percpu_wq initialization earlier
mm: migrate: fix remove_migration_pte() for ksm pages
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kbuild test robot reported a non-static variable name collision between
a staging driver and a RapidIO driver, with a generic variable name of
'dbg_level'.
Both drivers should be changed so that they don't use this generic
public variable name. This patch fixes the RapidIO driver but does not
change the user interface (name) for the module parameter.
drivers/staging/built-in.o:(.bss+0x109d0): multiple definition of `dbg_level'
drivers/rapidio/built-in.o:(.bss+0x16c): first defined here
Link: http://lkml.kernel.org/r/ab527fc5-aa3c-4b07-5d48-eef5de703192@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 4.11-rc5.
The usual xhci fixes are here, as well as a fix for yet-another-bug-
found-by-KASAN, those developers are doing great stuff here.
And there's a phy build warning fix that showed up in 4.11-rc1.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: phy: isp1301: Fix build warning when CONFIG_OF is disabled
xhci: Manually give back cancelled URB if we can't queue it for cancel
xhci: Set URB actual length for stopped control transfers
xhci: plat: Register shutdown for xhci_plat
USB: fix linked-list corruption in rh_call_control()
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Commit fd567653bdb9 ("usb: phy: isp1301: Add OF device ID table")
added an OF device ID table, but used the of_match_ptr() macro
that will lead to a build warning if CONFIG_OF symbol is disabled:
drivers/usb/phy//phy-isp1301.c:36:34: warning: ‘isp1301_of_match’ defined but not used [-Wunused-const-variable=]
static const struct of_device_id isp1301_of_match[] = {
^~~~~~~~~~~~~~~~
Fixes: fd567653bdb9 ("usb: phy: isp1301: Add OF device ID table")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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xhci needs to take care of four scenarios when asked to cancel a URB.
1 URB is not queued or already given back.
usb_hcd_check_unlink_urb() will return an error, we pass the error on
2 We fail to find xhci internal structures from urb private data such as
virtual device and endpoint ring.
Give back URB immediately, can't do anything about internal structures.
3 URB private data has valid pointers to xhci internal data, but host is
not responding.
give back URB immedately and remove the URB from the endpoint lists.
4 Everyting is working
add URB to cancel list, queue a command to stop the endpoint, after
which the URB can be turned to no-op or skipped, removed from lists,
and given back.
We failed to give back the urb in case 2 where the correct device and
endpoint pointers could not be retrieved from URB private data.
This caused a hang on Dell Inspiron 5558/0VNM2T at resume from suspend
as urb was never returned.
[ 245.270505] INFO: task rtsx_usb_ms_1:254 blocked for more than 120 seconds.
[ 245.272244] Tainted: G W 4.11.0-rc3-ARCH #2
[ 245.273983] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 245.275737] rtsx_usb_ms_1 D 0 254 2 0x00000000
[ 245.277524] Call Trace:
[ 245.279278] __schedule+0x2d3/0x8a0
[ 245.281077] schedule+0x3d/0x90
[ 245.281961] usb_kill_urb.part.3+0x6c/0xa0 [usbcore]
[ 245.282861] ? wake_atomic_t_function+0x60/0x60
[ 245.283760] usb_kill_urb+0x21/0x30 [usbcore]
[ 245.284649] usb_start_wait_urb+0xe5/0x170 [usbcore]
[ 245.285541] ? try_to_del_timer_sync+0x53/0x80
[ 245.286434] usb_bulk_msg+0xbd/0x160 [usbcore]
[ 245.287326] rtsx_usb_send_cmd+0x63/0x90 [rtsx_usb]
Reported-by: diego.viola@gmail.com
Tested-by: diego.viola@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A control transfer that stopped at the status stage incorrectly
warned about a "unexpected TRB Type 4", and did not set the
transferred actual_length for the URB.
The URB actual_length for control transfers should contain the
bytes transferred in the data stage.
Bytes of a partially sent setup stage and missing bytes from
status stage should be left out.
Cc: <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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