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When hv_pkt_iter_next() returns NULL, it has already called
hv_pkt_iter_close(). Calling it twice can lead to extra host signal.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When VF device is discovered, delay bring it automatically up in
order to allow userspace to some simple changes (like renaming).
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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"ret" isn't necessarily initialized here.
Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The DSA layer frees the original skb when an xmit function returns NULL,
meaning an error occurred. But if the tagging code copied the original
skb, it is responsible of freeing the copy if an error occurs.
The ksz tagging code currently has two issues: if skb_put_padto fails,
the skb copy is not freed, and the original skb will be freed twice.
To fix that, move skb_put_padto inside both branches of the skb_tailroom
condition, before freeing the original skb, and free the copy on error.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no restriction on queue size alignment. Hence removing check for
valid queue size.
Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When deleting a queue, clear its corresponding bit in the qmask, vfree its
memory, clear out the pointer that's pointing to it, and decrement the
queue count.
Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Felix Manlunas <fmanlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull NFS client fixes from Anna Schumaker:
"A few more NFS client bugfixes from me for rc5.
Dros has a stable fix for flexfiles to prevent leaking the
nfs4_ff_ds_version arrays when freeing a layout, Trond fixed a
potential recovery loop situation with the TEST_STATEID operation, and
Christoph fixed up the pNFS blocklayout Kconfig options to prevent
unsafe use with kernels that don't have large block device support.
Summary:
Stable fix:
- fix leaking nfs4_ff_ds_version array
Other fixes:
- improve TEST_STATEID OLD_STATEID handling to prevent recovery loop
- require 64-bit sector_t for pNFS blocklayout to prevent 32-bit
compile errors"
* tag 'nfs-for-4.13-5' of git://git.linux-nfs.org/projects/anna/linux-nfs:
pnfs/blocklayout: require 64-bit sector_t
NFSv4: Ignore NFS4ERR_OLD_STATEID in nfs41_check_open_stateid()
nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays
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Jiri Pirko says:
====================
net: sched: let the offloader decide what to offload
Currently there is a Qdisc_class_ops->tcf_cl_offload callback
that is called to find out if cls would offload rule or not.
This is only supported by sch_ingress and sch_clsact.
So the Qdisc are to decide. However, the driver knows what is he
able to offload, so move the decision making to drivers completely.
Just pass classid there and provide set of helpers to allow
identification of qdisc.
As a side effect, this actually allows clsact egress rules
offload in mlxsw.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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cops->tcf_cl_offload is no longer needed, as the drivers check what they
can and cannot offload using the classid identify helpers. So remove this.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no longer need to use handle in drivers, so remove it from
tc_cls_common_offload struct.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of checking handle, which does not have the inner class
information and drivers wrongly assume clsact->egress as ingress, use
the newly introduced classid identification helpers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Drivers need classid to decide they support this specific qdisc+class
or not. So propagate it down via the tc_cls_common_offload struct.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Offloading drivers need to understand what qdisc class a filter is added
to. Currently they only need to identify ingress, clsact->ingress and
clsact->egress. So provide these helpers.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add extack error messages for failure paths while creating/modifying
geneve devices. Once extack support is added to iproute2, more
meaningful and helpful error messages will be displayed making it easy
for users to discern what went wrong.
Before:
=======
$ ip link add gen1 address 0:1:2:3:4:5:6 type geneve id 200 \
remote 192.168.13.2
RTNETLINK answers: Invalid argument
After:
======
$ ip link add gen1 address 0:1:2:3:4:5:6 type geneve id 200 \
remote 192.168.13.2
Error: Provided link layer address is not Ethernet
Also, netdev_dbg() calls used to log errors associated with Netlink
request have been removed.
Signed-off-by: Girish Moodalbail <girish.moodalbail@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull block fixes from Jens Axboe:
"A set of fixes that should go into this series. This contains:
- Fix from Bart for blk-mq requeue queue running, preventing a
continued loop of run/restart.
- Fix for a bio/blk-integrity issue, in two parts. One from
Christoph, fixing where verification happens, and one from Milan,
for a NULL profile.
- NVMe pull request, most of the changes being for nvme-fc, but also
a few trivial core/pci fixes"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: fix directive command numd calculation
nvme: fix nvme reset command timeout handling
nvme-pci: fix CMB sysfs file removal in reset path
lpfc: support nvmet_fc defer_rcv callback
nvmet_fc: add defer_req callback for deferment of cmd buffer return
nvme: strip trailing 0-bytes in wwid_show
block: Make blk_mq_delay_kick_requeue_list() rerun the queue at a quiet time
bio-integrity: only verify integrity on the lowest stacked driver
bio-integrity: Fix regression if profile verify_fn is NULL
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While the kfree of dhkey_a is of the same address of tmp, it
probably is clearer and more human readable if tmp is kfree'd
rather than dhkey_a.
Detected by CoverityScan, CID#1448650 ("Free of address-of expression")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- fix lockdep splat when removing mmc_block module
- fix the logic for setting eMMC HS400ES signal voltage
MMC host:
- omap_hsmmc: add CMD23 capability to fix -EIO errors"
* tag 'mmc-v4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: block: fix lockdep splat when removing mmc_block module
mmc: mmc: correct the logic for setting HS400ES signal voltage
mmc: host: omap_hsmmc: Add CMD23 capability to omap_hsmmc driver
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Pull fbdev fixes from Bartlomiej Zolnierkiewicz:
- allow user to disable write combined mapping in efifb driver (Dave
Airlie)
- fix use after free bugs on driver removal in imxfb driver (Dan
Carpenter)
- fix unused variable warning in omapfb driver (Arnd Bergmann)
* tag 'fbdev-v4.13-rc5' of git://github.com/bzolnier/linux:
efifb: allow user to disable write combined mapping.
fbdev: omapfb: remove unused variable
video: fbdev: imxfb: use after free in imxfb_remove()
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"Fix a few bugs in fuse"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: set mapping error in writepage_locked when it fails
fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
fuse: initialize the flock flag in fuse_file on allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"Fix a NULL-pointer dereference in arm_smmu_add_device"
* tag 'iommu-fixes-v4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/arm-smmu: fix null-pointer dereference in arm_smmu_add_device
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The blocklayout code does not compile cleanly for a 32-bit sector_t,
and also has no reliable checks for devices sizes, which makes it
unsafe to use with a kernel that doesn't support large block devices.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5c83746a0cf2 ("pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing")
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Xin Long says:
====================
sctp: remove typedefs from structures part 6
As we know, typedef is suggested not to use in kernel, even checkpatch.pl
also gives warnings about it. Now sctp is using it for many structures.
All this kind of typedef's using should be removed. This patchset is the
part 6 to remove all typedefs in include/net/sctp/structs.h, command.h
and sm.h.
Just as the part 1-5, No any code's logic would be changed in these patches,
only cleaning up.
Note that this is the last part for this typedef cleaning up. after this
patchset, no more inappropriate typedefs in sctp. It's also to tidy some
codes when removing them, like fixing many indents, reodering some local
params, especially in the last 2 patches.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are some bad indents of functions' defination in sm_make_chunk.c.
They have been there since beginning, it was probably caused by that
the typedef sctp_chunk_t was replaced with struct sctp_chunk.
So it's the best time to fix them in this patchset, it's also to fix
some bad indents in other functions' defination in sm_make_chunk.c.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_disposition_t, and
replace with enum sctp_disposition in the places where it's
using this typedef.
It's also to fix the indent for many functions' defination.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_sm_table_entry_t, and
replace with struct sctp_sm_table_entry in the places where it's
using this typedef.
It is also to fix some indents.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove this typedef including the struct, there is even no places
using it.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_verb_t, and
replace with enum sctp_verb in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_arg_t, and
replace with union sctp_arg in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_cmd_seq_t, and
replace with struct sctp_cmd_seq in the places where it's
using this typedef.
Note that it doesn't fix many indents although it should,
as sctp_disposition_t's removal would mess them up again.
So better to fix them when removing sctp_disposition_t in
the later patch.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_cmd_t, and
replace with enum sctp_cmd in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_socket_type_t, and
replace with enum sctp_socket_type in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_dbg_objcnt_entry_t, and
replace with struct sctp_dbg_objcnt_entry in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_cmsgs_t, and
replace with struct sctp_cmsgs in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_endpoint_type_t, and
replace with enum sctp_endpoint_type in the places where it's
using this typedef.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is to remove the typedef sctp_sender_hb_info_t, and
replace with struct sctp_sender_hb_info in the places where it's
using this typedef.
It is also to use sizeof(variable) instead of sizeof(type).
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove this function typedef, there is even no places
using it.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"All fixes for code that went in this cycle.
- a revert of an optimisation to the syscall exit path, which could
lead to an oops on either older machines or machines with > 1TB of
memory
- disable some deep idle states if the firmware configuration for
them fails
- re-enable HARD/SOFT lockup detectors in defconfigs after a Kconfig
change
- six fairly small patches fixing bugs in our new watchdog code
Thanks to: Gautham R Shenoy, Nicholas Piggin"
* tag 'powerpc-4.13-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/watchdog: add locking around init/exit functions
powerpc/watchdog: Fix marking of stuck CPUs
powerpc/watchdog: Fix final-check recovered case
powerpc/watchdog: Moderate touch_nmi_watchdog overhead
powerpc/watchdog: Improve watchdog lock primitive
powerpc: NMI IPI improve lock primitive
powerpc/configs: Re-enable HARD/SOFT lockup detectors
powerpc/powernv/idle: Disable LOSE_FULL_CONTEXT states when stop-api fails
Revert "powerpc/64: Avoid restore_math call if possible in syscall exit"
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Fix compile error due to ksft_exit_skip() update to take var_args.
freq-step.c: In function ‘init_test’:
freq-step.c:234:3: error: too few arguments to function ‘ksft_exit_skip’
ksft_exit_skip();
^~~~~~~~~~~~~~
In file included from freq-step.c:26:0:
../kselftest.h:167:19: note: declared here
static inline int ksft_exit_skip(const char *msg, ...)
^~~~~~~~~~~~~~
<builtin>: recipe for target 'freq-step' failed
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Commit c54451a "iommu/arm-smmu: Fix the error path in arm_smmu_add_device"
removed fwspec assignment in legacy_binding path as redundant which is
wrong. It needs to be updated after fwspec initialisation in
arm_smmu_register_legacy_master() as it is dereferenced later. Without
this there is a NULL-pointer dereference panic during boot on some hosts.
Signed-off-by: Artem Savkov <asavkov@redhat.com>
Reviewed-by: 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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Here is a device has xen-pirq-MSI interrupt. Dom0 might lost interrupt
during driver irq_disable/irq_enable. Here is the scenario,
1. irq_disable -> disable_dynirq -> mask_evtchn(irq channel)
2. dev interrupt raised by HW and Xen mark its evtchn as pending
3. irq_enable -> startup_pirq -> eoi_pirq ->
clear_evtchn(channel of irq) -> clear pending status
4. consume_one_event process the irq event without pending bit assert
which result in interrupt lost once
5. No HW interrupt raising anymore.
Now use enable_dynirq for enable_pirq of xen_pirq_chip to remove
eoi_pirq when irq_enable.
Signed-off-by: Liu Shuo <shuo.a.liu@intel.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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When starting the xenwatch thread a theoretical deadlock situation is
possible:
xs_init() contains:
task = kthread_run(xenwatch_thread, NULL, "xenwatch");
if (IS_ERR(task))
return PTR_ERR(task);
xenwatch_pid = task->pid;
And xenwatch_thread() does:
mutex_lock(&xenwatch_mutex);
...
event->handle->callback();
...
mutex_unlock(&xenwatch_mutex);
The callback could call unregister_xenbus_watch() which does:
...
if (current->pid != xenwatch_pid)
mutex_lock(&xenwatch_mutex);
...
In case a watch is firing before xenwatch_pid could be set and the
callback of that watch unregisters a watch, then a self-deadlock would
occur.
Avoid this by setting xenwatch_pid in xenwatch_thread().
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Sencond batch of iwlwifi patches for 4.14
* Some more code moved to a new directory;
* Fixes in LED handling;
* Some FW API updates;
* General fixes and cleanups here and there.
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Pull NVMe fixes from Christoph:
"A few more small fixes - the fc/lpfc update is the biggest by far."
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enabled
On platforms with an arch timer erratum workaround, it's possible for
arch_timer_reg_read_stable() to recurse into itself when certain
tracing options are enabled, leading to stack overflows and related
problems.
For example, when PREEMPT_TRACER and FUNCTION_GRAPH_TRACER are
selected, it's possible to trigger this with:
$ mount -t debugfs nodev /sys/kernel/debug/
$ echo function_graph > /sys/kernel/debug/tracing/current_tracer
The problem is that in such cases, preempt_disable() instrumentation
attempts to acquire a timestamp via trace_clock(), resulting in a call
back to arch_timer_reg_read_stable(), and hence recursion.
This patch changes arch_timer_reg_read_stable() to use
preempt_{disable,enable}_notrace(), which avoids this.
This problem is similar to the fixed by upstream commit 96b3d28bf4
("sched/clock: Prevent tracing recursion in sched_clock_cpu()").
Fixes: 6acc71ccac71 ("arm64: arch_timer: Allows a CPU-specific erratum to only affect a subset of CPUs")
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Steve deRosier <derosier@gmail.com>
Tested-by: Steve deRosier <derosier@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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A Xen HVM guest running with KASLR enabled will die rather soon today
because the shared info page mapping is using va() too early. This was
introduced by commit a5d5f328b0e2baa5ee7c119fd66324eb79eeeb66 ("xen:
allocate page for shared info page from low memory").
In order to fix this use early_memremap() to get a temporary virtual
address for shared info until va() can be used safely.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Instead of calling xen_hvm_init_shared_info() on boot and resume split
it up into a boot time function searching for the pfn to use and a
mapping function doing the hypervisor mapping call.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Provide a hook in hypervisor_x86 called after setting up initial
memory mapping.
This is needed e.g. by Xen HVM guests to map the hypervisor shared
info page.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
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