| Commit message (Collapse) | Author | Age |
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.8-rc cycle, mostly a series of four fixes for
am335x RTC zero offset for clkctrl register. Also few other fixes:
- Add missing sysc information for DSI as at least n950 needs it for
the working display
- Fix old elm-id properties that cause nand boot to not work
- Fix overo gpmc nand cs0 range
- FIx overo gpmc nand on boards with ethernet
- Fix logicpd torpedo nand ready pin nand interrupt configuration
* tag 'omap-for-v4.8/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: logicpd-somlv: Fix NAND device nodes
ARM: dts: logicpd-torpedo-som: Provide NAND ready pin
ARM: dts: overo: fix gpmc nand on boards with ethernet
ARM: dts: overo: fix gpmc nand cs0 range
ARM: dts: am335x: Update elm phandle binding
ARM: OMAP4+: CM: Remove redundant checks for clkctrl_offs of zero
ARM: OMAP4+: Have _omap4_wait_target_* check for valid clkctrl_offs
ARM: OMAP2+: AM33XX: Add HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to rtc hwmod
ARM: OMAP4+: hwmod: Add hwmod flag for HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET
ARM: OMAP3: hwmod data: Add sysc information for DSI
Signed-off-by: Olof Johansson <olof@lixom.net>
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This fix was applied to a bunch of omap3 devices including LogicPD
Torpedo, but this got missed since it was new around the same times
the patches were applied. This makes the GPMC parameters match the
Torpedo since they have the same processor PoP memory.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This was applied to a variety of omap3 boards, so it should
probably be applied here. I did not test NAND performance, but
I tested this with UBI to confirm read/write didn't break.
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The gpmc ranges property for NAND at CS0 was being overridden by later
includes that defined gpmc ethernet nodes, effectively breaking NAND on
these systems:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
Instead of redefining the NAND range in every such dtsi, define all
currently used ranges in omap3-overo-base.dtsi.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Cc: stable <stable@vger.kernel.org> # 4.3
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The gpmc ranges property for NAND at CS0 has been broken since it was
first added.
This currently prevents the nand gpmc child node from being probed:
omap-gpmc 6e000000.gpmc: /ocp/gpmc@6e000000/nand@0,0 has
malformed 'reg' property
and consequently the NAND device from being registered.
Fixes: 98ce6007efb4 ("ARM: dts: overo: Support PoP NAND")
Cc: stable <stable@vger.kernel.org> # 4.3
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The check for the "elm_id" binding had been removed.
This causes nand boot to fail on boards still using
the old binding. Update the bindings on those boards.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Now that we have moved the check for valid clkctrl_offs to the caller of
am33xx_cm_wait_module_ready/idle and omap4_cminst_wait_module_ready/idle
let's remove the now redundant check for clkctrl_offs from these functions.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Previously the low-level CM call internal to the
_omap4_wait_target_ready/disable calls was responsible for checking for
a valid clkctrl_offs. Now we must also consider the value of the
prcm.omap4.flags because if HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET is set in
the flags then clkctrl_offs of 0 is valid.
Let's add this check into the _omap4_wait_target_ready/disable where we
have access to both the clkctrl_offs and the flags values and simply
return 0 without calling the low level CM call at all, which would have
returned 0 anyway if the clktrl_offs was zero.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The RTC hwmod on AM335x family of SoCs is unique in that the
clkctrl_offs in the PRCM is 0. We rely on a clkctrl_offs of zero as
indicating no clkctrl is present so we must flag this hwmod with
HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET to indicate the 0 clkctrl_offs is in
fact valid in this case.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Nearly all modules on OMAP4 and newer platforms have clkctrl offsets
that are non-zero except for the RTC on am335x. Because we rely on a
clkctrl_offset of zero to indicate no clkctrl_offset being present,
lets add a HWMOD_OMAP4_ZERO_CLKCTRL_OFFSET flag to use to indicate
hwmods that have a valid clkctrl_offset of 0.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Add missing sysconfig/sysstatus information
to OMAP3 hwmod. The information has been
checked against OMAP34xx and OMAP36xx TRM.
Without this change DSI block is not reset
during boot, which is required for working
Nokia N950 display.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes
SCPI/Vexpress fixes for v4.8-rc
Couple of minor fixes to add missing of_node_put after calling
of_parse_phandle in SCPI and vexpress-config bus drivers(Peter Chen)
* tag 'vexpress-fixes-4.8-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scpi: add missing of_node_put after calling of_parse_phandle
bus: vexpress-config: add missing of_node_put after calling of_parse_phandle
Signed-off-by: Olof Johansson <olof@lixom.net>
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of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using it.
Besides, of_address_to_resource always returns -EINVAL for error, delete
the assignment for ret.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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OMAP-GPMC: fixes for v4.8-rc1
Allow other children of GPMC to probe even if any child fails. This fixes
problem on Overo boards where networking device child doesn't probe due
to broken NAND child.
* tag 'gpmc-omap-v4.8-rc1' of https://github.com/rogerq/linux:
memory: omap-gpmc: allow probe of child nodes to fail
Signed-off-by: Olof Johansson <olof@lixom.net>
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A recent commit (inadvertently?) changed how failed probe of a gpmc
child node was handled. Instead of proceeding with setting up any other
children as before, a single error now aborts the whole process.
This change broke networking on some Overo boards due to probe failing
for an unrelated nand node. This second issue should obviously be
fixed, but let's restore the old behaviour of allowing child-node
probe to fail to avoid further similar breakage on other systems.
Fixes: d2d00862dfbb ("memory: omap-gpmc: Support general purpose input
for WAITPINs")
Cc: stable@vger.kernel.org # v4.7+
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
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mvebu fixes for 4.8 (part 1)
Fix lan numbering for the Armada 388 clearfog board
* tag 'mvebu-fixes-4.8-1' of git://git.infradead.org/linux-mvebu:
ARM: dts: armada-388-clearfog: number LAN ports properly
Signed-off-by: Olof Johansson <olof@lixom.net>
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Currently, the ports as seen from the rear number as:
eth0 sfp lan5 lan4 lan3 lan2 lan1 lan6
which is illogical - this came about because the rev 2.0 boards have the
LEDs on the front for the DSA switch (lan5-1) reversed. Rev 2.1 boards
fixed the LED issue, and the Clearfog case numbers the lan ports
increasing from left to right.
Maintaining this illogical numbering causes confusion, with reports that
"my link isn't coming up" and "my connection negotiates 10base-Half"
both of which are due to people thinking that the port next to the SFP
is lan1.
Fix this by renumbering the ports to match people's expectations.
[gregory.clement@free-electrons.com: added the Fixes and stable tags]
Fixes: 4c945e8556ec ("ARM: dts: Add SolidRun Armada 388 Clearfog A1 DT
file")
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal fix from Zhang Rui:
"Only one patch this time, which fixes a crash in rcar_thermal driver.
From Dirk Behme"
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rcar_thermal: Fix priv->zone error handling
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In case thermal_zone_xxx_register() returns an error, priv->zone
isn't NULL any more, but contains the error code.
This is passed to thermal_zone_device_unregister(), then. This checks
for priv->zone being NULL, but the error code is != NULL. So it works
with the error code as a pointer. Crashing immediately.
To fix this, reset priv->zone to NULL before entering
rcar_gen3_thermal_remove().
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more hardened usercopyfixes from Kees Cook:
- force check_object_size() to be inline too
- move page-spanning check behind a CONFIG since it's triggering false
positives
[ Changed the page-spanning config option to depend on EXPERT in the
merge. That way it still gets build testing, and you can enable it if
you want to, but is never enabled for "normal" configurations ]
* tag 'usercopy-v4.8-rc6-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
usercopy: remove page-spanning test for now
usercopy: force check_object_size() inline
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A custom allocator without __GFP_COMP that copies to userspace has been
found in vmw_execbuf_process[1], so this disables the page-span checker
by placing it behind a CONFIG for future work where such things can be
tracked down later.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1373326
Reported-by: Vinson Lee <vlee@freedesktop.org>
Fixes: f5509cc18daa ("mm: Hardened usercopy")
Signed-off-by: Kees Cook <keescook@chromium.org>
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Just for good measure, make sure that check_object_size() is always
inlined too, as already done for copy_*_user() and __copy_*_user().
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"Fix UM seccomp vs ptrace, after reordering landed"
* tag 'seccomp-v4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
seccomp: Remove 2-phase API documentation
um/ptrace: Fix the syscall number update after a ptrace
um/ptrace: Fix the syscall_trace_leave call
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Fixes: 8112c4f140fa ("seccomp: remove 2-phase API")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Update the syscall number after each PTRACE_SETREGS on ORIG_*AX.
This is needed to get the potentially altered syscall number in the
seccomp filters after RET_TRACE.
This fix four seccomp_bpf tests:
> [ RUN ] TRACE_syscall.skip_after_RET_TRACE
> seccomp_bpf.c:1560:TRACE_syscall.skip_after_RET_TRACE:Expected -1 (18446744073709551615) == syscall(39) (26)
> seccomp_bpf.c:1561:TRACE_syscall.skip_after_RET_TRACE:Expected 1 (1) == (*__errno_location ()) (22)
> [ FAIL ] TRACE_syscall.skip_after_RET_TRACE
> [ RUN ] TRACE_syscall.kill_after_RET_TRACE
> TRACE_syscall.kill_after_RET_TRACE: Test exited normally instead of by signal (code: 1)
> [ FAIL ] TRACE_syscall.kill_after_RET_TRACE
> [ RUN ] TRACE_syscall.skip_after_ptrace
> seccomp_bpf.c:1622:TRACE_syscall.skip_after_ptrace:Expected -1 (18446744073709551615) == syscall(39) (26)
> seccomp_bpf.c:1623:TRACE_syscall.skip_after_ptrace:Expected 1 (1) == (*__errno_location ()) (22)
> [ FAIL ] TRACE_syscall.skip_after_ptrace
> [ RUN ] TRACE_syscall.kill_after_ptrace
> TRACE_syscall.kill_after_ptrace: Test exited normally instead of by signal (code: 1)
> [ FAIL ] TRACE_syscall.kill_after_ptrace
Fixes: 26703c636c1f ("um/ptrace: run seccomp after ptrace")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: James Morris <jmorris@namei.org>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Keep the same semantic as before the commit 26703c636c1f: deallocate
audit context and fake a proper syscall exit.
This fix a kernel panic triggered by the seccomp_bpf test:
> [ RUN ] global.ERRNO_valid
> BUG: failure at kernel/auditsc.c:1504/__audit_syscall_entry()!
> Kernel panic - not syncing: BUG!
Fixes: 26703c636c1f ("um/ptrace: run seccomp after ptrace")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: James Morris <jmorris@namei.org>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardened usercopy fixes from Kees Cook:
- inline copy_*_user() for correct use of __builtin_const_p() for
hardened usercopy and the recent compile-time checks.
- switch hardened usercopy to only check non-const size arguments to
avoid meaningless checks on likely-sane const values.
- update lkdtm usercopy tests to compenstate for the const checking.
* tag 'usercopy-v4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lkdtm: adjust usercopy tests to bypass const checks
usercopy: fold builtin_const check into inline function
x86/uaccess: force copy_*_user() to be inlined
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The hardened usercopy is now consistently avoiding checks against const
sizes, since we really only want to perform runtime bounds checking
on lengths that weren't known at build time. To test the hardened usercopy
code, we must force the length arguments to be seen as non-const.
Signed-off-by: Kees Cook <keescook@chromium.org>
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Instead of having each caller of check_object_size() need to remember to
check for a const size parameter, move the check into check_object_size()
itself. This actually matches the original implementation in PaX, though
this commit cleans up the now-redundant builtin_const() calls in the
various architectures.
Signed-off-by: Kees Cook <keescook@chromium.org>
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As already done with __copy_*_user(), mark copy_*_user() as __always_inline.
Without this, the checks for things like __builtin_const_p() won't work
consistently in either hardened usercopy nor the recent adjustments for
detecting usercopy overflows at compile time.
The change in kernel text size is detectable, but very small:
text data bss dec hex filename
12118735 5768608 14229504 32116847 1ea106f vmlinux.before
12120207 5768608 14229504 32118319 1ea162f vmlinux.after
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"This is the second pull request for the rdma subsystem. Most of the
patches are small and obvious. I took two patches in that are larger
than I wanted this late in the cycle.
The first is the hfi1 patch that implements a work queue to test the
QSFP read state. I originally rejected the first patch for this
(which would have place up to 20 seconds worth of udelays in their
probe routine). They then rewrote it the way I wanted (use delayed
work tasks to wait asynchronously up to 20 seconds for the QSFP to
come alive), so I can't really complain about the size of getting what
I asked for :-/.
The second is large because it switches the rcu locking in the debugfs
code. Since a locking change like this is done all at once, the size
it what it is. It resolves a litany of debug messages from the
kernel, so I pulled it in for -rc.
The rest are all typical -rc worthy patches I think.
There will still be a third -rc pull request from the rdma subsystem
this release. I hope to have that one ready to go by the end of this
week or early next.
Summary:
- a smattering of small fixes across the core, ipoib, i40iw, isert,
cxgb4, and mlx4
- a slightly larger group of fixes to each of mlx5 and hfi1"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/hfi1: Rework debugfs to use SRCU
IB/hfi1: Make n_krcvqs be an unsigned long integer
IB/hfi1: Add QSFP sanity pre-check
IB/hfi1: Fix AHG KDETH Intr shift
IB/hfi1: Fix SGE length for misaligned PIO copy
IB/mlx5: Don't return errors from poll_cq
IB/mlx5: Use TIR number based on selector
IB/mlx5: Simplify code by removing return variable
IB/mlx5: Return EINVAL when caller specifies too many SGEs
IB/mlx4: Don't return errors from poll_cq
Revert "IB/mlx4: Return EAGAIN for any error in mlx4_ib_poll_one"
IB/ipoib: Fix memory corruption in ipoib cm mode connect flow
IB/core: Fix use after free in send_leave function
IB/cxgb4: Make _free_qp static to silence build warning
IB/isert: Properly release resources on DEVICE_REMOVAL
IB/hfi1: Fix the size parameter to find_first_bit
IB/mlx5: Fix the size parameter to find_first_bit
IB/hfi1: Clean up type used and casting
i40iw: Receive notification events correctly
i40iw: Update hw_iwarp_state
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The debugfs RCU trips many debug kernel warnings because of potential
sleeps with an RCU read lock held. This includes both user copy calls
and slab allocations throughout the file.
This patch switches the RCU to use SRCU for file remove/access
race protection.
In one case, the SRCU is implicit in the use of the raw debugfs file
object and just works.
In the seq_file case, a wrapper around seq_read() and seq_lseek() is
used to enforce the SRCU using the debugfs supplied functions
debugfs_use_file_start() and debugfs_use_file_stop().
The sychronize_rcu() is deleted since the SRCU prevents the remove
access race.
The RCU locking is kept for qp_stats since the QP hash list is
protected using the non-sleepable RCU.
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The global variable n_krcvqs stores the sum of the number of kernel
receive queues of VLs 0-7 which the user can pass to the driver through
the module parameter array krcvqs which is of type unsigned integer. If
the user passes large value(s) into krcvqs parameter array, it can cause
an arithmetic overflow while calculating n_krcvqs which is also of type
unsigned int. The overflow results in an incorrect value of n_krcvqs
which can lead to kernel crash while loading the driver.
Fix by changing the data type of n_krcvqs to unsigned long. This patch
also changes the data type of other variables that get their values from
n_krcvqs.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Sometimes a QSFP device does not respond in the expected time
after a power-on. Add a read pre-check/retry when starting
the link on driver load.
Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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In the set_txreq_header_ahg(), The KDETH Intr bit is obtained from the
header in the user sdma request using a KDETH_GET shift and mask macro.
This value is then futher right shifted by 16 causing us to lose the
value i.e it is shifted to zero, leading to the following
smatch warning:
drivers/infiniband/hw/hfi1/user_sdma.c:1482 set_txreq_header_ahg()
warn: mask and shift to zero
The Intr bit should be left shifted into its correct position in the
KDETH header before the AHG update.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com>
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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When trying to align the source pointer and there's a byte carry
in an SGE copy, bytes are borrowed from the next quad-word X to
complete the required quad-word copy. Then, the SGE length is
reduced by the number of borrowed bytes. After this, if the
remaining number of bytes from quad-word X (extra bytes) is
greater than the new SGE length, the number of extra bytes needs
to be updated to the new SGE length. Otherwise, when the
SGE length gets updated again after the extra bytes are read to
create the new byte carry, it goes negative, which then becomes
a very large number as the SGE length is an unsigned integer.
This causes SGE buffer to be over-read.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Remove returning errors from mlx5 poll_cq function. Polling CQ
operation in kernel never fails by Mellanox HCA architecture and
respective driver design.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Use TIR number based on selector, it should be done to differentiate
between RSS QP to RAW one.
Reported-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Tested-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Return variable was set in a line before the
actual return was called in begin_wqe function.
This patch removes such variable and simplifies the code.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The returned value should be EINVAL, because it is caused by wrong
caller and not by internal overflow event.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Remove returning errors from mlx4 poll_cq function. Polling CQ
operation in kernel never fails by Mellanox HCA architecture and
respective driver design.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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By Mellanox HW design and SW implementation, poll_cq never
fails and returns errors, so all these printks are to catch ULP bugs.
In case of such bug, the reverted patch will cause reentry of the
function, resulting in a printk storm.
This reverts commit 5412352fcd8f ("IB/mlx4: Return EAGAIN for any error in mlx4_ib_poll_one")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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When a new CM connection is being requested, ipoib driver copies data
from the path pointer in the CM/tx object, the path object might be
invalid at the point and memory corruption will happened later when now
the CM driver will try using that data.
The next scenario demonstrates it:
neigh_add_path --> ipoib_cm_create_tx -->
queue_work (pointer to path is in the cm/tx struct)
#while the work is still in the queue,
#the port goes down and causes the ipoib_flush_paths:
ipoib_flush_paths --> path_free --> kfree(path)
#at this point the work scheduled starts.
ipoib_cm_tx_start --> copy from the (invalid)path pointer:
(memcpy(&pathrec, &p->path->pathrec, sizeof pathrec);)
-> memory corruption.
To fix that the driver now starts the CM/tx connection only if that
specific path exists in the general paths database.
This check is protected with the relevant locks, and uses the gid from
the neigh member in the CM/tx object which is valid according to the ref
count that was taken by the CM/tx.
Fixes: 839fcaba35 ('IPoIB: Connected mode experimental support')
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The function send_leave sets the member: group->query_id
(group->query_id = ret) after calling the sa_query, but leave_handler
can be executed before the setting and it might delete the group object,
and will get a memory corruption.
Additionally, this patch gets rid of group->query_id variable which is
not used.
Fixes: faec2f7b96b5 ('IB/sa: Track multicast join/leave requests')
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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We get 1 warning when build kernel with W=1:
drivers/infiniband/hw/cxgb4/qp.c:686:6: warning: no previous prototype for '_free_qp' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is declared
and don't need a declaration, but can be made static.
so this patch marks it 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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When the low level driver exercises the hot unplug they would call
rdma_cm cma_remove_one which would fire DEVICE_REMOVAL event to all cma
consumers. Now, if consumer doesn't make sure they destroy all IB
objects created on that IB device instance prior to finalizing all
processing of DEVICE_REMOVAL callback, rdma_cm will let the lld to
de-register with IB core and destroy the IB device instance. And if the
consumer calls (say) ib_dereg_mr(), it will crash since that dev object
is NULL.
In the current implementation, iser-target just initiates the cleanup
and returns from DEVICE_REMOVAL callback. This deferred work creates a
race between iser-target cleaning IB objects(say MR) and lld destroying
IB device instance.
This patch includes the following fixes
-> make sure that consumer frees all IB objects associated with device
instance
-> return non-zero from the callback to destroy the rdma_cm id
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The 2nd parameter of 'find_first_bit' is the number of bits to search.
In this case, we are passing 'sizeof(u64)' which is 8.
It is likely that the number of bits of 'port_mask' was expected here.
Use sizeof() * 8 to get the correct number.
It has been spotted by the following coccinelle script:
@@
expression ret, x;
@@
* ret = \(find_first_bit \| find_first_zero_bit\) (x, sizeof(...));
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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