This patch fixes a bug where outstanding RDMA_READs with WRITE_PENDING
status require an extra target_put_sess_cmd() in isert_put_cmd() code
when called from isert_cq_tx_comp_err() + isert_cq_drain_comp_llist()
context during session shutdown.
The extra kref PUT is required so that transport_generic_free_cmd()
invokes the last target_put_sess_cmd() -> target_release_cmd_kref(),
which will complete(&se_cmd->cmd_wait_comp) the outstanding se_cmd
descriptor with WRITE_PENDING status, and awake the completion in
target_wait_for_sess_cmds() to invoke TFO->release_cmd().
The bug was manifesting itself in target_wait_for_sess_cmds() where
a se_cmd descriptor with WRITE_PENDING status would end up sleeping
indefinately.
Acked-by: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Now that TASK_ABORTED status is not generated for all cases by
TMR ABORT_TASK + LUN_RESET, a new TFO->abort_task() caller is
necessary in order to give fabric drivers a chance to unmap
hardware / software resources before the se_cmd descriptor is
released via the normal TFO->release_cmd() codepath.
This patch adds TFO->aborted_task() in core_tmr_abort_task()
in place of the original transport_send_task_abort(), and
also updates all fabric drivers to implement this caller.
The fabric drivers that include changes to perform cleanup
via ->aborted_task() are:
- iscsi-target
- iser-target
- srpt
- tcm_qla2xxx
The fabric drivers that currently set ->aborted_task() to
NOPs are:
- loopback
- tcm_fc
- usb-gadget
- sbp-target
- vhost-scsi
For the latter five, there appears to be no additional cleanup
required before invoking TFO->release_cmd() to release the
se_cmd descriptor.
v2 changes:
- Move ->aborted_task() call into transport_cmd_finish_abort (Alex)
Cc: Alex Leung <amleung21@yahoo.com>
Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Vu Pham <vu@mellanox.com>
Cc: Chris Boot <bootc@bootc.net>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Giridhar Malavali <giridhar.malavali@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Quinn Tran <quinn.tran@qlogic.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch addresses three of long standing issues wrt to Task
Aborted Status (TAS) handling.
The first is the incorrect assumption in core_tmr_handle_tas_abort()
that TASK_ABORTED status is sent for the task referenced by TMR
ABORT_TASK, and sending TASK_ABORTED status for TMR LUN_RESET on
the same nexus the LUN_RESET was received.
The second is to ensure the lun reference count is dropped within
transport_cmd_finish_abort() by calling transport_lun_remove_cmd()
before invoking transport_cmd_check_stop_to_fabric().
The last is to fix the delayed TAS handling to allow outstanding
WRITEs to complete before sending the TASK_ABORTED status. This
includes changing transport_check_aborted_status() to avoid
processing when SCF_SEND_DELAYED_TAS has not be set, and updating
transport_send_task_abort() to drop the SCF_SENT_DELAYED_TAS
check.
Signed-off-by: Alex Leung <amleung21@yahoo.com>
Cc: Alex Leung <amleung21@yahoo.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch changes isert_conn_create_fastreg_pool() to follow
logic in iscsi_target_locate_portal() for determining how many
FRMR descriptors to allocate based upon the number of possible
per-session command slots that are available.
This addresses an OOPs in isert_reg_rdma() where due to the
use of ISCSI_DEF_XMIT_CMDS_MAX could end up returning a bogus
fast_reg_descriptor when the number of active tags exceeded
the original hardcoded max.
Note this also includes moving isert_conn_create_fastreg_pool()
from isert_connect_request() to isert_put_login_tx() before
posting the final Login Response PDU in order to determine the
se_nacl->queue_depth (eg: number of tags) per session the target
will be enforcing.
v2 changes:
- Move isert_conn->conn_fr_pool list_head init into
isert_conn_request()
v3 changes:
- Drop unnecessary list_empty() check in isert_reg_rdma()
(Sagi)
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: <stable@vger.kernel.org> #3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
If during data-transfer a data-integrity error was detected we
must fail the command with CHECK_CONDITION and not execute
the command.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Remove code duplication from RDMA_READ and RDMA_WRITE
completions that do basically the same check.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
If protection is involved, iSER target must wait for
completion of RDMA_READ before sending SCSI response.
So we must consider that when calculating post_send_buf_count
additions, also when processing good/error completions.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
As REG_SIG_MR work request and it's LOCAL_INVALIDATE are
not accounted in post_send_buf_count we must color these
with ISER_FASTREG_LI_WRID in order to process their error
completions when the QP flushes.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch adds check for NopOUT->flag (LMB) which is a mandatory
as per RFC 3720 Section 10.18.
(Fix up context changes for v3.14-rc code - nab)
Signed-off-by: Arshad Hussain <arshad.hussain@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In case the Target core passed transport T10 protection
operation:
1. Register data buffer (data memory region)
2. Register protection buffer if exsists (prot memory region)
3. Register signature region (signature memory region)
- use work request IB_WR_REG_SIG_MR
4. Execute RDMA
5. Upon RDMA completion check the signature status
- if succeeded send good SCSI response
- if failed send SCSI bad response with appropriate sense buffer
(Fix up compile error in isert_reg_sig_mr, and fix up incorrect
se_cmd->prot_type -> TARGET_PROT_NORMAL comparision - nab)
(Fix failed sector assignment in isert_completion_rdma_* - Sagi + nab)
(Fix enum assignements for protection type - Sagi)
(Fix devision on 32-bit in isert_completion_rdma_* - Sagi + Fengguang)
(Fix context change for v3.14-rc6 code - nab)
(Fix iscsit_build_rsp_pdu inc_statsn flag usage - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In case of protected transactions, we will need to check the
protection status of the transaction before sending SCSI response.
So be ready for RDMA_WRITE completions. currently we don't ask
for these completions, but for T10-PI we will.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Introduce pi_context to hold relevant RDMA protection resources.
We eliminate data_key_valid boolean and replace it with indicators
container to indicate:
- Is the descriptor protected (registered via signature MR)
- Is the data_mr key valid (can spare LOCAL_INV WR)
- Is the prot_mr key valid (can spare LOCAL_INV WR)
- Is the sig_mr key valid (can spare LOCAL_INV WR)
Upon connection establishment check if network portal is T10-PI
enabled and allocate T10-PI resources if necessary, allocate
signature enabled memory regions and mark connection queue-pair
as signature enabled.
(Fix context change for v3.14-rc6 code - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
export map/unmap data buffer to a routine that may
be used in various places in the code and keep the
mapping data in a designated descriptor. Also, let
isert_fast_reg_mr to decide weather to use global
MR or do fast registration.
This commit does not change any functionality.
(Fix context change for v3.14-rc6 code - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
User may enable T10-PI support per network portal group. any connection
established on top of it, will be required to serve protected transactions.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In case an iscsi portal group will be defined as t10_pi enabled,
all connections on top of it will support protected transactions.
T10-PI support may require extra reource allocation and maintenance by
the transport layer, so we don't want to apply them on non-t10_pi network
portals. This is a hook for the iscsi target layer to signal the transport
at connection establishment that this connection will carry protected
transactions.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This is not going to be supported soon - so drop it.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Some transports (iSCSI/iSER/SRP/FC) support hardware INSERT/STRIP
capabilities while other transports like loopback/vhost-scsi need
perform this is software.
This patch allows fabrics using SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC
to signal the early LUN scan handling case where PROTECT CDB bits
are set, but no fabric buffer has been provided.
For transports which use generic new command these buffers have yet
to be allocated.
Also this way, target may support protection information
against legacy initiators (writes are inserted and reads
are stripped).
(Only set prot_pto for loopback during early special case - nab)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
No need to actually compute protection information when formatting
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
SBC-3 mandates the protection checks that must be
performed in the rdprotect/wrprotect field. Use them.
According to backstore device pi_attributes and
cdb rdprotect/wrprotect field.
(Fix incorrect se_cmd->prot_type -> TARGET_PROT_NORMAL
comparision in transport_generic_new_cmd - nab)
(Fix missing break in sbc_set_prot_op_checks - DanC + Sagi)
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In case protection information is involved, allocate
protection SG-list for transport.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Building target_core_alua.o triggers a GCC warning:
drivers/target/target_core_alua.c: In function ‘target_alua_state_check’:
drivers/target/target_core_alua.c:773:18: warning: ‘alua_ascq’ may be used uninitialized in this function [-Wmaybe-uninitialized]
cmd->scsi_ascq = alua_ascq;
^
This is a false positive. A little trial and error shows it is
apparently caused by core_alua_state_lba_dependent(). It must be hard
for GCC to track the branches of a switch statement, inside a
list_for_each_entry loop, inside a while loop.
But if we add a small (inline) helper function we can reorganize the
code a bit. That also allows to drop alua_ascq which, obviously, gets
rid of this warning.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
A collection of fixes for ARM platforms. A little large due to us missing to
do one last week, but there's nothing in particular here that is in itself
large and scary.
Mostly a handful of smaller fixes all over the place. The majority is made
up of fixes for OMAP, but there are a few for others as well. In particular,
there was a decision to rename a binding for the Broadcom pinctrl block that
we need to go in before the final release since we then treat it as ABI.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from from Olof Johansson:
"A collection of fixes for ARM platforms. A little large due to us
missing to do one last week, but there's nothing in particular here
that is in itself large and scary.
Mostly a handful of smaller fixes all over the place. The majority is
made up of fixes for OMAP, but there are a few for others as well. In
particular, there was a decision to rename a binding for the Broadcom
pinctrl block that we need to go in before the final release since we
then treat it as ABI"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
ARM: tegra: add LED options back into tegra_defconfig
ARM: dts: omap3-igep: fix boot fail due wrong compatible match
ARM: OMAP3: Fix pinctrl interrupts for core2
pinctrl: Rename Broadcom Capri pinctrl binding
pinctrl: refer to updated dt binding string.
Update dtsi with new pinctrl compatible string
ARM: OMAP: Kill warning in CPUIDLE code with !CONFIG_SMP
ARM: OMAP2+: Add support for thumb mode on DT booted N900
ARM: OMAP2+: clock: fix clkoutx2 with CLK_SET_RATE_PARENT
ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4
ARM: DRA7: hwmod data: correct the sysc data for spinlock
ARM: OMAP5: PRM: Fix reboot handling
ARM: sunxi: dt: Change the touchscreen compatibles
ARM: sun7i: dt: Fix interrupt trigger types
Highlights include:
- Fix another nfs4_sequence corruptor in RELEASE_LOCKOWNER
- Fix an Oopsable delegation callback race
- Fix another bad stateid infinite loop
- Fail the data server I/O is the stateid represents a lost lock
- Fix an Oopsable sunrpc trace event
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Merge tag 'nfs-for-3.14-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- Fix another nfs4_sequence corruptor in RELEASE_LOCKOWNER
- Fix an Oopsable delegation callback race
- Fix another bad stateid infinite loop
- Fail the data server I/O is the stateid represents a lost lock
- Fix an Oopsable sunrpc trace event"
* tag 'nfs-for-3.14-5' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Fix oops when trace sunrpc_task events in nfs client
NFSv4: Fail the truncate() if the lock/open stateid is invalid
NFSv4.1 Fail data server I/O if stateid represents a lost lock
NFSv4: Fix the return value of nfs4_select_rw_stateid
NFSv4: nfs4_stateid_is_current should return 'true' for an invalid stateid
NFS: Fix a delegation callback race
NFSv4: Fix another nfs4_sequence corruptor
Here are 4 USB fixes for your current tree.
Two of them are reverts to hopefully resolve the nasty XHCI regressions
we have been having on some types of devices. The other two are quirks
for some Logitech video devices.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are 4 USB fixes for your current tree.
Two of them are reverts to hopefully resolve the nasty XHCI
regressions we have been having on some types of devices. The other
two are quirks for some Logitech video devices"
* tag 'usb-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
Revert "USBNET: ax88179_178a: enable tso if usb host supports sg dma"
Revert "xhci 1.0: Limit arbitrarily-aligned scatter gather."
usb: Make DELAY_INIT quirk wait 100ms between Get Configuration requests
usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e
Here is a single staging driver fix for your tree.
It resolves an issue with arbritary writes to memory if a specific
driver is loaded.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver tree fix from Greg KH:
"Here is a single staging driver fix for your tree.
It resolves an issue with arbritary writes to memory if a specific
driver is loaded"
* tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging/cxt1e1/linux.c: Correct arbitrary memory write in c4_ioctl()
This fixes CVE-2014-0102.
The following command sequence produces an oops:
keyctl new_session
i=`keyctl newring _ses @s`
keyctl link @s $i
The problem is that search_nested_keyrings() sees two keyrings that have
matching type and description, so keyring_compare_object() returns true.
s_n_k() then passes the key to the iterator function -
keyring_detect_cycle_iterator() - which *should* check to see whether this is
the keyring of interest, not just one with the same name.
Because assoc_array_find() will return one and only one match, I assumed that
the iterator function would only see an exact match or never be called - but
the iterator isn't only called from assoc_array_find()...
The oops looks something like this:
kernel BUG at /data/fs/linux-2.6-fscache/security/keys/keyring.c:1003!
invalid opcode: 0000 [#1] SMP
...
RIP: keyring_detect_cycle_iterator+0xe/0x1f
...
Call Trace:
search_nested_keyrings+0x76/0x2aa
__key_link_check_live_key+0x50/0x5f
key_link+0x4e/0x85
keyctl_keyring_link+0x60/0x81
SyS_keyctl+0x65/0xe4
tracesys+0xdd/0xe2
The fix is to make keyring_detect_cycle_iterator() check that the key it
has is the key it was actually looking for rather than calling BUG_ON().
A testcase has been included in the keyutils testsuite for this:
http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=891f3365d07f1996778ade0e3428f01878a1790b
Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull thermal fixes from Zhang Rui:
"Specifics:
- Update the help text of INT3403 Thermal driver, which was not
friendly to users. From Zhang Rui.
- The "type" sysfs attribute of x86_pkg_temp_thermal registered
thermal zones includes an instance number, which makes the
thermal-to-hwmon bridge fails to group them all in a single hwmon
device. Fixed by Jean Delvare.
- The hwmon device registered by x86_pkg_temp_thermal driver is
redundant because the temperature value reported by
x86_pkg_temp_thermal is already reported by the coretemp driver.
Fixed by Jean Delvare.
- Fix a problem that the cooling device can not be updated properly
if it is initialized at max cooling state. From Ni Wade.
- Fix a problem that OF registered thermal zones are running without
thermal governors. From Zhang Rui.
- Commit beeb5a1e0e ("thermal: rcar-thermal: Enable driver
compilation with COMPILE_TEST") broke build on archs wihout io
memory. Thus make it depend on HAS_IOMEM to bypass build failures.
Fixed by Richard Weinberger"
* 'for-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Thermal: thermal zone governor fix
Thermal: Allow first update of cooling device state
thermal,rcar_thermal: Add dependency on HAS_IOMEM
x86_pkg_temp_thermal: Fix the thermal zone type
x86_pkg_temp_thermal: Do not expose as a hwmon device
Thermal: update INT3404 thermal driver help text
A scattering of driver specific fixes here. The fixes from Axel cover
bitrot in apparently unmaintained drivers, the at79 bug is fixing a
glitch on /CS during initialisation of some devices which could break
some slaves and the remainder are fixes for recently introduced bugs
from the past release cycle or so.
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Merge tag 'spi-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A scattering of driver specific fixes here.
The fixes from Axel cover bitrot in apparently unmaintained drivers,
the at79 bug is fixing a glitch on /CS during initialisation of some
devices which could break some slaves and the remainder are fixes for
recently introduced bugs from the past release cycle or so"
* tag 'spi-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: atmel: add missing spi_master_{resume,suspend} calls to PM callbacks
spi: coldfire-qspi: Fix getting correct address for *mcfqspi
spi: fsl-dspi: Fix getting correct address for master
spi: spi-ath79: fix initial GPIO CS line setup
spi: spi-imx: spi_imx_remove: do not disable disabled clocks
spi-topcliff-pch: Fix probing when DMA mode is used
spi/topcliff-pch: Fix DMA channel
Pull SCSI target fixes from Nicholas Bellinger:
"This series addresses a number of outstanding issues wrt to active I/O
shutdown using iser-target. This includes:
- Fix a long standing tpg_state bug where a tpg could be referenced
during explicit shutdown (v3.1+ stable)
- Use list_del_init for iscsi_cmd->i_conn_node so list_empty checks
work as expected (v3.10+ stable)
- Fix a isert_conn->state related hung task bug + ensure outstanding
I/O completes during session shutdown. (v3.10+ stable)
- Fix isert_conn->post_send_buf_count accounting for RDMA READ/WRITEs
(v3.10+ stable)
- Ignore FRWR completions during active I/O shutdown (v3.12+ stable)
- Fix command leakage for interrupt coalescing during active I/O
shutdown (v3.13+ stable)
Also included is another DIF emulation fix from Sagi specific to
v3.14-rc code"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
Target/sbc: Fix sbc_copy_prot for offset scatters
iser-target: Fix command leak for tx_desc->comp_llnode_batch
iser-target: Ignore completions for FRWRs in isert_cq_tx_work
iser-target: Fix post_send_buf_count for RDMA READ/WRITE
iscsi/iser-target: Fix isert_conn->state hung shutdown issues
iscsi/iser-target: Use list_del_init for ->i_conn_node
iscsi-target: Fix iscsit_get_tpg_from_np tpg_state bug
Revert commit 3130497f5b ("ACPI / sleep: pm_power_off needs more
sanity checks to be installed") that breaks power ACPI power off on a
lot of systems, because it checks wrong registers.
Fixes: 3130497f5b ("ACPI / sleep: pm_power_off needs more sanity checks to be installed")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
issues booting 3430 based boards.
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Merge tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Two omap3430 vs 3630 device tree regression fixes for
issues booting 3430 based boards.
* tag 'omap-for-v3.14/fixes-dt-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap3-gta04: Add ti,omap36xx to compatible property to avoid problems with booting
ARM: dts: omap3-igep: fix boot fail due wrong compatible match
Signed-off-by: Olof Johansson <olof@lixom.net>
other bcm mobile bindings.
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Merge tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351 into fixes
Merge 'bcm pinctrl rename' From Christin Daudt:
Rename pinctrl dt binding to restore consistency with other bcm mobile
bindings.
* tag 'bcm-for-3.14-pinctrl-reduced-rename' of git://github.com/broadcom/bcm11351:
pinctrl: Rename Broadcom Capri pinctrl binding
pinctrl: refer to updated dt binding string.
Update dtsi with new pinctrl compatible string
+ Linux 3.14-rc4
Signed-off-by: Olof Johansson <olof@lixom.net>
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14
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Merge tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux into fixes
Allwinner fixes from Maxime Ripard:
Two fixes for device trees additions that got added in 3.14. One fixes the
interrupt types of some IPs, the other fixes up a compatible that got
introduced during 3.14
* tag 'sunxi-fixes-for-3.14' of https://github.com/mripard/linux:
ARM: sunxi: dt: Change the touchscreen compatibles
ARM: sun7i: dt: Fix interrupt trigger types
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull cgroup fixes from Tejun Heo:
"Two cpuset locking fixes from Li. Both tagged for -stable"
* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: fix a race condition in __cpuset_node_allowed_softwall()
cpuset: fix a locking issue in cpuset_migrate_mm()
Pull workqueue fix from Tejun Heo:
"This pull request contains a workqueue usage fix for firewire.
For quite a long time now, workqueue only treats two work items
identical iff both their addresses and callbacks match. This is to
avoid introducing false dependency through the work item being
recycled while being executed. This changes non-reentrancy guarantee
for the users of PREPARE[_DELAYED]_WORK() - if the function changes,
reentrancy isn't guaranteed against the previous instance. Firewire
depended on such nonreentrancy guarantee.
This is fixed by doing the work item multiplexing from firewire proper
while keeping the work function unchanged"
* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
firewire: don't use PREPARE_DELAYED_WORK
regression since v3.10.
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Merge tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fixes from Stefan Richter:
"Fix a use-after-free regression since v3.4 and an initialization
regression since v3.10"
* tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: fix probe failure with Agere/LSI controllers
firewire: net: fix use after free
CPU frequency cannot be scaled.
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Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux
Pull clk driver fix from Mike Turquette:
"Single fix for a clock driver merged in 3.14-rc1. Without this fix
the CPU frequency cannot be scaled"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: shmobile: rcar-gen2: Use kick bit to allow Z clock frequency change
- ACPI tables in some BIOSes list device resources with size equal
to 0, which doesn't make sense, so we should ignore them, but
instead we try to use them and mangle things completely. Fix
from Zhang Rui.
- Several models of Samsung laptops accumulate EC events when they
are in sleep states which leads to EC buffer overflows that prevent
new events from being signaled after system resume or reboot. This
has been affecting many users for quite a while and may be addressed
by clearing the EC buffer during system resume and system startup on
those machines. From Kieran Clancy.
- If the ACPI sleep control and status registers are not present
(which happens if the Hardware Reduced ACPI mode bit is set in
the ACPI tables, but also may result from BIOS bugs), we should
not try to use ACPI to power off the system and ACPI S5 should
not be listed as supported. Fix from Aubrey Li.
- There's a race condition in cpufreq_get() that leads to a kernel
crash if that function is called at a wrong time. Fix from
Aaron Plattner.
- cpufreq policy objects have to be initialized entirely before
they are first accessed by their users which isn't the case
currently and that potentially leads to various kinds of
breakage that is difficult to debug. Fix from Viresh Kumar.
- Locking is missing in __cpufreq_add_dev() which leads to a race
condition that may trigger a kernel crash. Fix from Viresh Kumar.
/
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Merge tag 'pm+acpi-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
- ACPI tables in some BIOSes list device resources with size equal to
0, which doesn't make sense, so we should ignore them, but instead we
try to use them and mangle things completely. Fix from Zhang Rui.
- Several models of Samsung laptops accumulate EC events when they are
in sleep states which leads to EC buffer overflows that prevent new
events from being signaled after system resume or reboot. This has
been affecting many users for quite a while and may be addressed by
clearing the EC buffer during system resume and system startup on
those machines. From Kieran Clancy.
- If the ACPI sleep control and status registers are not present (which
happens if the Hardware Reduced ACPI mode bit is set in the ACPI
tables, but also may result from BIOS bugs), we should not try to use
ACPI to power off the system and ACPI S5 should not be listed as
supported. Fix from Aubrey Li.
- There's a race condition in cpufreq_get() that leads to a kernel
crash if that function is called at a wrong time. Fix from Aaron
Plattner.
- cpufreq policy objects have to be initialized entirely before they
are first accessed by their users which isn't the case currently and
that potentially leads to various kinds of breakage that is difficult
to debug. Fix from Viresh Kumar.
- Locking is missing in __cpufreq_add_dev() which leads to a race
condition that may trigger a kernel crash. Fix from Viresh Kumar.
* tag 'pm+acpi-3.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / EC: Clear stale EC events on Samsung systems
cpufreq: Initialize governor for a new policy under policy->rwsem
cpufreq: Initialize policy before making it available for others to use
cpufreq: use cpufreq_cpu_get() to avoid cpufreq_get() race conditions
ACPI / sleep: pm_power_off needs more sanity checks to be installed
ACPI / resources: ignore invalid ACPI device resources
It's an enum, not a #define, you can't use it in asm files.
Introduced in commit 5fa10196bd ("x86: Ignore NMIs that come in during
early boot"), and sadly I didn't compile-test things like I should have
before pushing out.
My weak excuse is that the x86 tree generally doesn't introduce stupid
things like this (and the ARM pull afterwards doesn't cause me to do a
compile-test either, since I don't cross-compile).
Cc: Don Zickus <dzickus@redhat.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull ARM fixes from Russell King:
"A number of ARM updates for -rc, covering mostly ARM specific code,
but with one change to modpost.c to allow Thumb section mismatches to
be detected.
ARM changes include reporting when an attempt is made to boot a LPAE
kernel on hardware which does not support LPAE, rather than just being
silent about it.
A number of other minor fixes are included too"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 7992/1: boot: compressed: ignore bswapsdi2.S
ARM: 7991/1: sa1100: fix compile problem on Collie
ARM: fix noMMU kallsyms symbol filtering
ARM: 7980/1: kernel: improve error message when LPAE config doesn't match CPU
ARM: 7964/1: Detect section mismatches in thumb relocations
ARM: 7963/1: mm: report both sections from PMD
Pull x86 fixes from Peter Anvin:
"A small collection of minor fixes. The FPU stuff is still pending, I
fear. I haven't heard anything from Suresh so I suspect I'm going to
have to dig into the init specifics myself and fix up the patchset"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Ignore NMIs that come in during early boot
x86, trace: Further robustify CR2 handling vs tracing
x86, trace: Fix CR2 corruption when tracing page faults
x86/efi: Quirk out SGI UV
Pull power fixes from Ben Herrenschmidt:
"Here are a couple of powerpc fixes for 3.14.
One is (another!) nasty TM problem, we can crash the kernel by forking
inside a transaction. The other one is a simple fix for an alignment
issue which can hurt in LE mode"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Align p_dyn, p_rela and p_st symbols
powerpc/tm: Fix crash when forking inside a transaction
Developers would say they put a trace_printk() before and after the trace
event but when they enable it (and the trace event said it was enabled) they
would see the trace_printks but not the trace event.
I was not able to reproduce this, but that's because I wasn't looking at
the right location. Recently, another bug came up that showed the issue.
If your kernel supports signed modules but allows for non-signed modules
to be loaded, then when one is, the kernel will silently set the
MODULE_FORCED taint on the module. Although, this taint happens without
the need for insmod --force or anything of the kind, it labels the
module with that taint anyway.
If this tainted module has tracepoints, the tracepoints will be ignored
because of the MODULE_FORCED taint. But no error message will be
displayed. Worse yet, the event infrastructure will still be created
letting users enable the trace event represented by the tracepoint,
although that event will never actually be enabled. This is because
the tracepoint infrastructure allows for non-existing tracepoints to
be enabled for new modules to arrive and have their tracepoints set.
Although there are several things wrong with the above, this change
only addresses the creation of the trace event files for tracepoints
that are not created when a module is loaded and is tainted. This change
will print an error message about the module being tainted and not the
trace events will not be created, and it does not create the trace event
infrastructure.
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Merge tag 'trace-fixes-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"In the past, I've had lots of reports about trace events not working.
Developers would say they put a trace_printk() before and after the
trace event but when they enable it (and the trace event said it was
enabled) they would see the trace_printks but not the trace event.
I was not able to reproduce this, but that's because I wasn't looking
at the right location. Recently, another bug came up that showed the
issue.
If your kernel supports signed modules but allows for non-signed
modules to be loaded, then when one is, the kernel will silently set
the MODULE_FORCED taint on the module. Although, this taint happens
without the need for insmod --force or anything of the kind, it labels
the module with that taint anyway.
If this tainted module has tracepoints, the tracepoints will be
ignored because of the MODULE_FORCED taint. But no error message will
be displayed. Worse yet, the event infrastructure will still be
created letting users enable the trace event represented by the
tracepoint, although that event will never actually be enabled. This
is because the tracepoint infrastructure allows for non-existing
tracepoints to be enabled for new modules to arrive and have their
tracepoints set.
Although there are several things wrong with the above, this change
only addresses the creation of the trace event files for tracepoints
that are not created when a module is loaded and is tainted. This
change will print an error message about the module being tainted and
not the trace events will not be created, and it does not create the
trace event infrastructure"
* tag 'trace-fixes-v3.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not add event files for modules that fail tracepoints
Pull irq fixes from Thomas Gleixner:
- a bugfix for a long standing waitqueue race
- a trivial fix for a missing include
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Include missing header file in irqdomain.c
genirq: Remove racy waitqueue_active check
* pm-cpufreq:
cpufreq: Initialize governor for a new policy under policy->rwsem
cpufreq: Initialize policy before making it available for others to use
cpufreq: use cpufreq_cpu_get() to avoid cpufreq_get() race conditions
