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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five small fixes.
Some of these, like the nested spinlock overwriting saved flags and
the Kasan use after free look serious, but they seem not to have been
picked up in testing or seen in the field.
The biggest user visible issue is probably the wrong device handler
for Clariion, which means that alua doesn't bind to the array like it
should"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ipr: Fix async error WARN_ON
scsi: zfcp: spin_lock_irqsave() is not nestable
scsi: Remove one useless stack variable
scsi: Fix use-after-free
scsi: Replace wrong device handler name for CLARiiON arrays
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Commit afc3f83cb4a5 ("scsi: ipr: Add asynchronous error notification")
introduced the warn on shown below. To fix this, rather than attempting
to send the KOBJ_CHANGE uevent from interrupt context, which is what is
causing the WARN_ON, just wake the ipr worker thread which will send a
KOBJ_CHANGE uevent.
[ 142.278120] WARNING: CPU: 15 PID: 0 at kernel/softirq.c:161 __local_bh_enable_ip+0x7c/0xd0
[ 142.278124] Modules linked in: ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter ses enclosure scsi_transport_sas sg pseries_rng nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod sd_mod cdrom ipr libata ibmvscsi scsi_transport_srp ibmveth dm_mirror dm_region_hash dm_log dm_mod
[ 142.278208] CPU: 15 PID: 0 Comm: swapper/15 Not tainted 4.8.0.ipr+ #21
[ 142.278213] task: c00000010cf24480 task.stack: c00000010cfec000
[ 142.278217] NIP: c0000000000c0c7c LR: c000000000881778 CTR: c0000000003c5bf0
[ 142.278221] REGS: c00000010cfef080 TRAP: 0700 Not tainted (4.8.0.ipr+)
[ 142.278224] MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 28008022 XER: 2000000f
[ 142.278236] CFAR: c0000000000c0c20 SOFTE: 0
GPR00: c000000000706c78 c00000010cfef300 c000000000f91d00 c000000000706c78
GPR04: 0000000000000200 c000000000f7bc80 0000000000000000 00000000024000c0
GPR08: 0000000000000000 0000000000000001 c000000000ee1d00 c000000000a9bdd0
GPR12: c0000000003c5bf0 c00000000eb22d00 c000000100ca3880 c00000020ed38400
GPR16: 0000000000000000 0000000000000000 c000000100940508 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 00000000024000c0
GPR24: c0000000004588e0 c00000010863bd00 c00000010863bd00 c0000000013773f8
GPR28: c000000000f7bc80 0000000000000000 ffffffffffffffff c000000000f7bcd8
[ 142.278290] NIP [c0000000000c0c7c] __local_bh_enable_ip+0x7c/0xd0
[ 142.278296] LR [c000000000881778] _raw_spin_unlock_bh+0x38/0x60
[ 142.278299] Call Trace:
[ 142.278303] [c00000010cfef300] [c000000000f7bc80] init_net+0x0/0x1900 (unreliable)
[ 142.278310] [c00000010cfef320] [c000000000706c78] peernet2id+0x58/0x80
[ 142.278316] [c00000010cfef370] [c00000000075caec] netlink_broadcast_filtered+0x30c/0x550
[ 142.278323] [c00000010cfef430] [c000000000459078] kobject_uevent_env+0x588/0x780
[ 142.278331] [c00000010cfef510] [d000000003163a6c] ipr_process_error+0x11c/0x240 [ipr]
[ 142.278337] [c00000010cfef5c0] [d000000003152298] ipr_fail_all_ops+0x108/0x220 [ipr]
[ 142.278343] [c00000010cfef670] [d0000000031643f8] ipr_reset_restore_cfg_space+0xa8/0x240 [ipr]
[ 142.278350] [c00000010cfef6f0] [d000000003158a00] ipr_reset_ioa_job+0x80/0xe0 [ipr]
[ 142.278356] [c00000010cfef720] [d000000003153f78] ipr_reset_timer_done+0xa8/0xe0 [ipr]
[ 142.278363] [c00000010cfef770] [c000000000149c88] call_timer_fn+0x58/0x1c0
[ 142.278368] [c00000010cfef800] [c000000000149f60] expire_timers+0x140/0x200
[ 142.278373] [c00000010cfef870] [c00000000014a0e8] run_timer_softirq+0xc8/0x230
[ 142.278379] [c00000010cfef900] [c0000000000c0844] __do_softirq+0x164/0x3c0
[ 142.278384] [c00000010cfef9f0] [c0000000000c0f18] irq_exit+0x1a8/0x1c0
[ 142.278389] [c00000010cfefa20] [c000000000020b54] timer_interrupt+0xa4/0xe0
[ 142.278394] [c00000010cfefa50] [c000000000002414] decrementer_common+0x114/0x180
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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We accidentally overwrite the original saved value of "flags" so that we
can't re-enable IRQs at the end of the function. Presumably this
function is mostly called with IRQs disabled or it would be obvious in
testing.
Fixes: aceeffbb59bb ("zfcp: trace full payload of all SAN records (req,resp,iels)")
Cc: <stable@vger.kernel.org> #2.6.38+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The local variable of 'devname' in scsi_report_lun_scan() isn't used any
more, so remove it.
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch fixes one use-after-free report[1] by KASAN.
In __scsi_scan_target(), when a type 31 device is probed,
SCSI_SCAN_TARGET_PRESENT is returned and the target will be scanned
again.
Inside the following scsi_report_lun_scan(), one new scsi_device
instance is allocated, and scsi_probe_and_add_lun() is called again to
probe the target and still see type 31 device, finally
__scsi_remove_device() is called to remove & free the device at the end
of scsi_probe_and_add_lun(), so cause use-after-free in
scsi_report_lun_scan().
And the following SCSI log can be observed:
scsi 0:0:2:0: scsi scan: INQUIRY pass 1 length 36
scsi 0:0:2:0: scsi scan: INQUIRY successful with code 0x0
scsi 0:0:2:0: scsi scan: peripheral device type of 31, no device added
scsi 0:0:2:0: scsi scan: Sending REPORT LUNS to (try 0)
scsi 0:0:2:0: scsi scan: REPORT LUNS successful (try 0) result 0x0
scsi 0:0:2:0: scsi scan: REPORT LUN scan
scsi 0:0:2:0: scsi scan: INQUIRY pass 1 length 36
scsi 0:0:2:0: scsi scan: INQUIRY successful with code 0x0
scsi 0:0:2:0: scsi scan: peripheral device type of 31, no device added
BUG: KASAN: use-after-free in __scsi_scan_target+0xbf8/0xe40 at addr ffff88007b44a104
This patch fixes the issue by moving the putting reference at
the end of scsi_report_lun_scan().
[1] KASAN report
==================================================================
[ 3.274597] PM: Adding info for serio:serio1
[ 3.275127] BUG: KASAN: use-after-free in __scsi_scan_target+0xd87/0xdf0 at addr ffff880254d8c304
[ 3.275653] Read of size 4 by task kworker/u10:0/27
[ 3.275903] CPU: 3 PID: 27 Comm: kworker/u10:0 Not tainted 4.8.0 #2121
[ 3.276258] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 3.276797] Workqueue: events_unbound async_run_entry_fn
[ 3.277083] ffff880254d8c380 ffff880259a37870 ffffffff94bbc6c1 ffff880078402d80
[ 3.277532] ffff880254d8bb80 ffff880259a37898 ffffffff9459fec1 ffff880259a37930
[ 3.277989] ffff880254d8bb80 ffff880078402d80 ffff880259a37920 ffffffff945a0165
[ 3.278436] Call Trace:
[ 3.278528] [<ffffffff94bbc6c1>] dump_stack+0x65/0x84
[ 3.278797] [<ffffffff9459fec1>] kasan_object_err+0x21/0x70
[ 3.279063] device: 'psaux': device_add
[ 3.279616] [<ffffffff945a0165>] kasan_report_error+0x205/0x500
[ 3.279651] PM: Adding info for No Bus:psaux
[ 3.280202] [<ffffffff944ecd22>] ? kfree_const+0x22/0x30
[ 3.280486] [<ffffffff94bc2dc9>] ? kobject_release+0x119/0x370
[ 3.280805] [<ffffffff945a0543>] __asan_report_load4_noabort+0x43/0x50
[ 3.281170] [<ffffffff9507e1f7>] ? __scsi_scan_target+0xd87/0xdf0
[ 3.281506] [<ffffffff9507e1f7>] __scsi_scan_target+0xd87/0xdf0
[ 3.281848] [<ffffffff9507d470>] ? scsi_add_device+0x30/0x30
[ 3.282156] [<ffffffff94f7f660>] ? pm_runtime_autosuspend_expiration+0x60/0x60
[ 3.282570] [<ffffffff956ddb07>] ? _raw_spin_lock+0x17/0x40
[ 3.282880] [<ffffffff9507e505>] scsi_scan_channel+0x105/0x160
[ 3.283200] [<ffffffff9507e8a2>] scsi_scan_host_selected+0x212/0x2f0
[ 3.283563] [<ffffffff9507eb3c>] do_scsi_scan_host+0x1bc/0x250
[ 3.283882] [<ffffffff9507efc1>] do_scan_async+0x41/0x450
[ 3.284173] [<ffffffff941c1fee>] async_run_entry_fn+0xfe/0x610
[ 3.284492] [<ffffffff941a8954>] ? pwq_dec_nr_in_flight+0x124/0x2a0
[ 3.284876] [<ffffffff941d1770>] ? preempt_count_add+0x130/0x160
[ 3.285207] [<ffffffff941a9a84>] process_one_work+0x544/0x12d0
[ 3.285526] [<ffffffff941aa8e9>] worker_thread+0xd9/0x12f0
[ 3.285844] [<ffffffff941aa810>] ? process_one_work+0x12d0/0x12d0
[ 3.286182] [<ffffffff941bb365>] kthread+0x1c5/0x260
[ 3.286443] [<ffffffff940855cd>] ? __switch_to+0x88d/0x1430
[ 3.286745] [<ffffffff941bb1a0>] ? kthread_worker_fn+0x5a0/0x5a0
[ 3.287085] [<ffffffff956dde9f>] ret_from_fork+0x1f/0x40
[ 3.287368] [<ffffffff941bb1a0>] ? kthread_worker_fn+0x5a0/0x5a0
[ 3.287697] Object at ffff880254d8bb80, in cache kmalloc-2048 size: 2048
[ 3.288064] Allocated:
[ 3.288147] PID = 27
[ 3.288218] [<ffffffff940b27ab>] save_stack_trace+0x2b/0x50
[ 3.288531] [<ffffffff9459f246>] save_stack+0x46/0xd0
[ 3.288806] [<ffffffff9459f4bd>] kasan_kmalloc+0xad/0xe0
[ 3.289098] [<ffffffff9459c07e>] __kmalloc+0x13e/0x250
[ 3.289378] [<ffffffff95078e5a>] scsi_alloc_sdev+0xea/0xcf0
[ 3.289701] [<ffffffff9507de76>] __scsi_scan_target+0xa06/0xdf0
[ 3.290034] [<ffffffff9507e505>] scsi_scan_channel+0x105/0x160
[ 3.290362] [<ffffffff9507e8a2>] scsi_scan_host_selected+0x212/0x2f0
[ 3.290724] [<ffffffff9507eb3c>] do_scsi_scan_host+0x1bc/0x250
[ 3.291055] [<ffffffff9507efc1>] do_scan_async+0x41/0x450
[ 3.291354] [<ffffffff941c1fee>] async_run_entry_fn+0xfe/0x610
[ 3.291695] [<ffffffff941a9a84>] process_one_work+0x544/0x12d0
[ 3.292022] [<ffffffff941aa8e9>] worker_thread+0xd9/0x12f0
[ 3.292325] [<ffffffff941bb365>] kthread+0x1c5/0x260
[ 3.292594] [<ffffffff956dde9f>] ret_from_fork+0x1f/0x40
[ 3.292886] Freed:
[ 3.292945] PID = 27
[ 3.293016] [<ffffffff940b27ab>] save_stack_trace+0x2b/0x50
[ 3.293327] [<ffffffff9459f246>] save_stack+0x46/0xd0
[ 3.293600] [<ffffffff9459fa61>] kasan_slab_free+0x71/0xb0
[ 3.293916] [<ffffffff9459bac2>] kfree+0xa2/0x1f0
[ 3.294168] [<ffffffff9508158a>] scsi_device_dev_release_usercontext+0x50a/0x730
[ 3.294598] [<ffffffff941ace9a>] execute_in_process_context+0xda/0x130
[ 3.294974] [<ffffffff9508107c>] scsi_device_dev_release+0x1c/0x20
[ 3.295322] [<ffffffff94f566f6>] device_release+0x76/0x1e0
[ 3.295626] [<ffffffff94bc2db7>] kobject_release+0x107/0x370
[ 3.295942] [<ffffffff94bc29ce>] kobject_put+0x4e/0xa0
[ 3.296222] [<ffffffff94f56e17>] put_device+0x17/0x20
[ 3.296497] [<ffffffff9505201c>] scsi_device_put+0x7c/0xa0
[ 3.296801] [<ffffffff9507e1bc>] __scsi_scan_target+0xd4c/0xdf0
[ 3.297132] [<ffffffff9507e505>] scsi_scan_channel+0x105/0x160
[ 3.297458] [<ffffffff9507e8a2>] scsi_scan_host_selected+0x212/0x2f0
[ 3.297829] [<ffffffff9507eb3c>] do_scsi_scan_host+0x1bc/0x250
[ 3.298156] [<ffffffff9507efc1>] do_scan_async+0x41/0x450
[ 3.298453] [<ffffffff941c1fee>] async_run_entry_fn+0xfe/0x610
[ 3.298777] [<ffffffff941a9a84>] process_one_work+0x544/0x12d0
[ 3.299105] [<ffffffff941aa8e9>] worker_thread+0xd9/0x12f0
[ 3.299408] [<ffffffff941bb365>] kthread+0x1c5/0x260
[ 3.299676] [<ffffffff956dde9f>] ret_from_fork+0x1f/0x40
[ 3.299967] Memory state around the buggy address:
[ 3.300209] ffff880254d8c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 3.300608] ffff880254d8c280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 3.300986] >ffff880254d8c300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 3.301408] ^
[ 3.301550] ffff880254d8c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 3.301987] ffff880254d8c400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 3.302396]
==================================================================
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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At drivers/scsi/device_handler/scsi_dh_emc.c it was defined as:
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
Cc: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: SCSI ML <linux-scsi@vger.kernel.org>
Cc: device-mapper development <dm-devel@redhat.com>
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull block fixes from Jens Axboe:
"A set of fixes that missed the merge window, mostly due to me being
away around that time.
Nothing major here, a mix of nvme cleanups and fixes, and one fix for
the badblocks handling"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: use symbolic constants for CNS values
nvme: use symbolic constants for CNS values
nvme.h: add an enum for cns values
nvme.h: don't use uuid_be
nvme.h: resync with nvme-cli
nvme: Add tertiary number to NVME_VS
nvme : Add sysfs entry for NVMe CMBs when appropriate
nvme: don't schedule multiple resets
nvme: Delete created IO queues on reset
nvme: Stop probing a removed device
badblocks: fix overlapping check for clearing
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Reviewed-by: Jay Freyensee <james_p_freyensee@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Import a few updates to nvme.h from nvme-cli. This mostly includes a few
new fields and error codes, but also a few renames that so far are only
used in user space. Also one field is moved from an array of two le64
values to one of 16 u8 values so that we can more easily access it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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NVMe 1.2.1 specification adds a tertiary element to the version number.
This updates the macro and its callers to include the final number and
fixup a single place in nvmet where the version was generated manually.
Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Add a sysfs attribute that contains salient information about the NVMe
Controller Memory Buffer when one is present. For now, just display the
information about the CMB available from the control registers. We attach
the CMB attribute file to the existing nvme_ctrl sysfs group so it can
handle the sysfs teardown.
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Jay Freyensee <james_p_freyensee@linux.intel.com>
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Acked-by Jon Derrick: <jonathan.derrick@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The queue_work only fails if the work is pending, but not yet running. If
the work is running, the work item would get requeued, triggering a
double reset. If the first reset fails for any reason, the second
reset triggers:
WARN_ON(dev->ctrl.state == NVME_CTRL_RESETTING)
Hitting that schedules controller deletion for a second time, which
potentially takes a reference on the device that is being deleted.
If the reset occurs at the same time as a hot removal event, this causes
a double-free.
This patch has the reset helper function check if the work is busy
prior to queueing, and changes all places that schedule resets to use
this function. Since most users don't want to sync with that work, the
"flush_work" is moved to the only caller that wants to sync.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg<sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The driver was decrementing the online_queues prior to attempting to
delete those IO queues, so the driver ended up not requesting the
controller delete any. This patch saves the online_queues prior to
suspending them, and adds that parameter for deleting io queues.
Fixes: c21377f8 ("nvme: Suspend all queues before deletion")
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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There is no reason the nvme controller can ever return all 1's from
reading the CSTS register. This patch returns an error if we observe
that status. Without this, we may incorrectly proceed with controller
initialization and unnecessarilly rely on error handling to clean this.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"This includes:
- Fix for a Layerscape driver issue that causes a use-before-set
crash
- Maintainer update for the Synopsis prototyping device driver"
* tag 'pci-v4.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: designware-plat: Update author email address
PCI: layerscape: Fix drvdata usage before assignment
PCI: designware-plat: Change maintainer to Jose Abreu
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Although I am leaving Synopsys, I would like to keep working with the linux
kernel community and help in what you might find useful. For that I am
sending this patch to change my contact e-mail.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Commit fefe6733e516 ("PCI: layerscape: Move struct pcie_port setup
to probe function") changed the init ordering of the pcie structure,
but started to use the pcie->drvdata field before initializing it.
Mayhem follows.
Fix this by moving the drvdata assignment right before the first use.
Tested on LS2085a.
Fixes: efe6733e516 ("PCI: layerscape: Move struct pcie_port setup to probe function")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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drm-fixes
2 more patches to stabilize the new MMUv2 support.
* 'drm-etnaviv-fixes' of git://git.pengutronix.de/lst/linux:
drm/etnaviv: block 64K of address space behind each cmdstream
drm/etnaviv: ensure write caches are flushed at end of user cmdstream
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To make sure we don't place anything there which might confuse
the FE prefetcher. This gets rid of another case of FE MMU faults
when the address space gets crowded before triggering the reaper.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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If the GPU is done with one user command stream the buffers referenced
by this command stream may go away and get unmapped from the MMU. If
the write caches are still dirty at this point later evictions will run
into MMU faults, killing the GPU.
Make sure the write caches are flushed before signaling completion
of the user command stream.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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ssh://people.freedesktop.org/~syeh/repos_linux into drm-fixes
vmwgfx cleanups and fixes.
* 'drm-vmwgfx-fixes' of ssh://people.freedesktop.org/~syeh/repos_linux:
drm/vmwgfx: Adjust checks for null pointers in 13 functions
drm/vmwgfx: Use memdup_user() rather than duplicating its implementation
drm/vmwgfx: Use kmalloc_array() in vmw_surface_define_ioctl()
drm/vmwgfx: Avoid validating views on view destruction
drm/vmwgfx: Limit the user-space command buffer size
drm/vmwgfx: Remove a leftover debug printout
drm/vmwgfx: Allow resource relocations on byte boundaries
drm/vmwgfx: Enable SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
drm/vmwgfx: Remove call to reservation_object_test_signaled_rcu before wait
drm/vmwgfx: Replace numeric parameter like 0444 with macro
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The script "checkpatch.pl" can point information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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* Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
* Try this copy operation before allocating memory for the data structure
member "offsets".
* Delete the local variable "user_sizes" which became unnecessary
with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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When a view destruction command was present in the command stream, the
view was validated to avoid a device error. That caused excessive and
unnecessary validations of views, surfaces and mobs on view destruction.
Replace this with a new relocation type that patches the view
destruction command to a NOP if the view is not present in the device
after the execbuf validation sequence.
Also add checks for the member size of the vmw_res_relocation struct.
Fixes sporadic command submission errors on google-earth exit.
Reported-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Cc: stable@vger.kernel.org
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With older hardware versions, the user could specify arbitrarily large
command buffer sizes, causing a vmalloc / vmap space exhaustion.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Cc: stable@vger.kernel.org
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Remove a leftover debug printout
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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So far, resource allocations have only been allowed on 4-byte boundaries.
As commands get packed tighter, allow them on byte boundaries.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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And bump VMWGFX_DRIVER_MINOR to 11
Signed-off-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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Since fence_wait_timeout_reservation_object_wait_timeout_rcu() with a
timeout of 0 becomes reservation_object_test_signaled_rcu(), we do not
need to handle such conversion in the caller. The only challenge are
those callers that wish to differentiate the error code between the
nonblocking busy check and potentially blocking wait.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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I find that the developers often just specified the numeric value
when calling a macro which is defined with a parameter for access
permission.
As we know, these numeric value for access permission have had the
corresponding macro, and that using macro can improve the robustness and
readability of the code, thus, I suggest replacing the numeric parameter
with the macro.
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Signed-off-by: Baole Ni <baolex.ni@intel.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
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into drm-fixes
One small fix for Armada, where the clock prepare/enable counts were
going awry.
* 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
drm/armada: fix clock counts
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The DPMS handling wrt clock enables/disables was incorrect: we could end
up decrementing the clock count multiple times if we transition via
several low-power DPMS states, resulting in a kernel warning. Fix this
by only testing to see whether we are entering or exiting the DPMS off
state.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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http://git.agner.ch/git/linux-drm-fsl-dcu into drm-fixes
This are some fixes which I hoped to still get into v4.9. I used to
test them here since about 2 weeks and Meng came around to test it
on the second platform making use of this IP too, so they are well
tested now.
* 'fixes-for-v4.9-rc2' of http://git.agner.ch/git/linux-drm-fsl-dcu:
drm/fsl-dcu: enable pixel clock when enabling CRTC
drm/fsl-dcu: do not transfer registers in mode_set_nofb
drm/fsl-dcu: do not transfer registers on plane init
drm/fsl-dcu: enable TCON bypass mode by default
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The pixel clock should not be on if the CRTC is not in use, hence
move clock enable/disable calls into CRTC callbacks.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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Do not schedule a transfer of mode settings early. Modes should
get applied on on CRTC enable where we also enable the pixel clock.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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There is no need to explicitly initiate a register transfer and
turn off the DCU after initializing the plane registers. In fact,
this is harmful and leads to unnecessary flickers if the DCU has
been left on by the bootloader.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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Do not use encoder disable/enable callbacks to control bypass
mode as this seems to mess with the signals not liked by
displays. This also makes more sense since the encoder is
already defined to be parallel RGB/LVDS at creation time.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Most of these are CC'd for stable, but there are a few fixing issues
introduced during the recent merge window too.
There's also a fix for the xgene PMU driver, but it seemed daft to
send as a separate pull request, so I've included it here with the
rest of the fixes.
- Fix ACPI boot due to recent broken NUMA changes
- Fix remote enabling of CPU features requiring PSTATE bit manipulation
- Add address range check when emulating user cache maintenance
- Fix LL/SC loops that allow compiler to introduce memory accesses
- Fix recently added write_sysreg_s macro
- Ensure MDCR_EL2 is initialised on qemu targets without a PMU
- Avoid kaslr breakage due to MODVERSIONs and DYNAMIC_FTRACE
- Correctly drive recent ld when building relocatable Image
- Remove junk IS_ERR check from xgene PMU driver added during merge window
- pr_cont fixes after core changes in the merge window"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: remove pr_cont abuse from mem_init
arm64: fix show_regs fallout from KERN_CONT changes
arm64: kernel: force ET_DYN ELF type for CONFIG_RELOCATABLE=y
arm64: suspend: Reconfigure PSTATE after resume from idle
arm64: mm: Set PSTATE.PAN from the cpu_enable_pan() call
arm64: cpufeature: Schedule enable() calls instead of calling them via IPI
arm64: Cortex-A53 errata workaround: check for kernel addresses
arm64: percpu: rewrite ll/sc loops in assembly
arm64: swp emulation: bound LL/SC retries before rescheduling
arm64: sysreg: Fix use of XZR in write_sysreg_s
arm64: kaslr: keep modules close to the kernel when DYNAMIC_FTRACE=y
arm64: kernel: Init MDCR_EL2 even in the absence of a PMU
perf: xgene: Remove bogus IS_ERR() check
arm64: kernel: numa: fix ACPI boot cpu numa node mapping
arm64: kaslr: fix breakage with CONFIG_MODVERSIONS=y
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In acpi_get_pmu_hw_inf we pass the address of a local variable to IS_ERR(),
which doesn't make sense, as the pointer must be a real, valid pointer.
This doesn't cause a functional problem, as IS_ERR() will evaluate as
false, but the check is bogus and causes static checkers to complain.
Remove the bogus check.
The bug is reported by Dan Carpenter <dan.carpenter@oracle.com> in [1]
[1] https://www.spinics.net/lists/arm-kernel/msg535957.html
Signed-off-by: Tai Nguyen <ttnguyen@apm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Pull Ceph fixes from Ilya Dryomov:
"An rbd exclusive-lock edge case fix and several filesystem fixups.
Nikolay's error path patch is tagged for stable, everything else but
readdir vs frags race was introduced in this merge window"
* tag 'ceph-for-4.9-rc2' of git://github.com/ceph/ceph-client:
ceph: fix non static symbol warning
ceph: fix uninitialized dentry pointer in ceph_real_mount()
ceph: fix readdir vs fragmentation race
ceph: fix error handling in ceph_read_iter
rbd: don't retry watch reregistration if header object is gone
rbd: don't wait for the lock forever if blacklisted
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If the header object gets deleted (perhaps along with the entire pool),
there is no point in attempting to reregister the watch. Treat this
the same as blacklisting: fail all pending and new I/Os requiring the
lock.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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-EBLACKLISTED from __rbd_register_watch() means that our ceph_client
got blacklisted - we won't be able to restore the watch and reacquire
the lock. Wake up and fail all outstanding requests waiting for the
lock and arrange for all new requests that require the lock to fail
immediately.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Mike Christie <mchristi@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"Here are some mmc fixes intended for v4.9 rc2.
This time I have also included a few changes for a memstick driver
which has a corresponding mmc driver. They use the same USB device as
parent, hence both needs to play nice with runtime PM, which they
didn't.
MMC core:
- Update MAINTAINERS as the mmc tree moved to kernel.org
- A few fixes for HS400es mode
- A few other minor fixes
MMC host:
- sdhci: Fix an issue when dealing with stop commands
- sdhci-pci: Fix a bus power failure issue
- sdhci-esdhc-imx: Correct two register accesses
- sdhci-of-arasan: Fix the 1.8V I/O signal switch behaviour
- rtsx_usb_sdmmc: Fix runtime PM issues
Other: (Because of no maintainer)
- memstick: rtsx_usb_ms: Fix runtime PM issues"
* tag 'mmc-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
MAINTAINERS: mmc: Move the mmc tree to kernel.org
memstick: rtsx_usb_ms: Manage runtime PM when accessing the device
memstick: rtsx_usb_ms: Runtime resume the device when polling for cards
mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led
mmc: rtsx_usb_sdmmc: Avoid keeping the device runtime resumed when unused
mmc: sdhci: cast unsigned int to unsigned long long to avoid unexpeted error
mmc: sdhci-esdhc-imx: Correct two register accesses
mmc: sdhci-pci: Fix bus power failing to enable for some Intel controllers
mmc: sdhci-pci: Let devices define their own sdhci_ops
mmc: sdhci: Rename sdhci_set_power() to sdhci_set_power_noreg()
mmc: sdhci: Fix SDHCI_QUIRK2_STOP_WITH_TC
mmc: core: Annotate cmd_hdr as __le32
mmc: sdhci-of-arasan: add sdhci_arasan_voltage_switch for arasan, 5.1
mmc: core: changes frequency to hs_max_dtr when selecting hs400es
mmc: core: switch to 1V8 or 1V2 for hs400es mode
mmc: block: add missing header dependencies
mmc: sdhci-of-arasan: Fix non static symbol warning
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Accesses to the rtsx usb device, which is the parent of the rtsx memstick
device, must not be done unless it's runtime resumed. This is currently not
the case and it could trigger various errors.
Fix this by properly deal with runtime PM in this regards. This means
making sure the device is runtime resumed, when serving requests via the
->request() callback or changing settings via the ->set_param() callbacks.
Cc: <stable@vger.kernel.org>
Cc: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Accesses to the rtsx usb device, which is the parent of the rtsx memstick
device, must not be done unless it's runtime resumed.
Therefore when the rtsx_usb_ms driver polls for inserted memstick cards,
let's add pm_runtime_get|put*() to make sure accesses is done when the
rtsx usb device is runtime resumed.
Reported-by: Ritesh Raj Sarraf <rrs@researchut.com>
Tested-by: Ritesh Raj Sarraf <rrs@researchut.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Accesses of the rtsx sdmmc's parent device, which is the rtsx usb device,
must be done when it's runtime resumed. Currently this isn't case when
changing the led, so let's fix this by adding a pm_runtime_get_sync() and
a pm_runtime_put() around those operations.
Reported-by: Ritesh Raj Sarraf <rrs@researchut.com>
Tested-by: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: <stable@vger.kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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The rtsx_usb_sdmmc driver may bail out in its ->set_ios() callback when no
SD card is inserted. This is wrong, as it could cause the device to remain
runtime resumed when it's unused. Fix this behaviour.
Tested-by: Ritesh Raj Sarraf <rrs@researchut.com>
Cc: <stable@vger.kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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