Commit Graph

810299 Commits

Author SHA1 Message Date
Steffen Maier
b63195698d scsi: zfcp: fix sysfs block queue limit output for max_segment_size
Since v2.6.35 commit 683229845f ("[SCSI] zfcp: Report scatter-gather
limits to SCSI and block layer"), zfcp set dma_parms.max_segment_size ==
PAGE_SIZE (but without using the setter dma_set_max_seg_size()) and
scsi_host_template.dma_boundary == PAGE_SIZE - 1.

v5.0-rc1 commit 50c2e9107f ("scsi: introduce a max_segment_size
host_template parameters") introduced a new field
scsi_host_template.max_segment_size. If an LLDD such as zfcp does not set
it, scsi_host_alloc() uses BLK_MAX_SEGMENT_SIZE = 65536 for
Scsi_Host.max_segment_size. __scsi_init_queue() announced the minimum of
Scsi_Host.max_segment_size and dma_parms.max_segment_size to the block
layer. For zfcp: min(65536, 4096) == 4096 which was still good.

v5.0 commit a8cf59a669 ("scsi: communicate max segment size to the DMA
mapping code") announces Scsi_Host.max_segment_size to the block layer and
overwrites dma_parms.max_segment_size with Scsi_Host.max_segment_size.  For
zfcp dma_parms.max_segment_size == Scsi_Host.max_segment_size == 65536
which is also reflected in block queue limits.

$ cd /sys/bus/ccw/drivers/zfcp
$ cd 0.0.3c40/host5/rport-5:0-4/target5:0:4/5:0:4:10/block/sdi/queue
$ cat max_segment_size
65536

Zfcp I/O still works because dma_boundary implicitly still keeps the
effective max segment size <= PAGE_SIZE.  However, dma_boundary does not
seem visible to user space, but max_segment_size is visible and shows a
misleading wrong value.  Fix it and inherit the stable tag of a8cf59a669.

Devices on our bus ccw support DMA but no DMA mapping. Of multiple device
types on the ccw bus, only zfcp needs dma_parms for SCSI limits.  So, leave
dma_parms setup in zfcp and do not move it to the bus.

Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Fixes: 50c2e9107f ("scsi: introduce a max_segment_size host_template parameters")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-29 01:14:59 -05:00
Marc Gonzalez
d672475664 scsi: ufs: Use explicit access size in ufshcd_dump_regs
memcpy_fromio() doesn't provide any control over access size.  For example,
on arm64, it is implemented using readb and readq.  This may trigger a
synchronous external abort:

[    3.729943] Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
[    3.737000] Modules linked in:
[    3.744371] CPU: 2 PID: 1 Comm: swapper/0 Tainted: G S                4.20.0-rc4 #16
[    3.747413] Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT)
[    3.755295] pstate: 00000005 (nzcv daif -PAN -UAO)
[    3.761978] pc : __memcpy_fromio+0x68/0x80
[    3.766718] lr : ufshcd_dump_regs+0x50/0xb0
[    3.770767] sp : ffff00000807ba00
[    3.774830] x29: ffff00000807ba00 x28: 00000000fffffffb
[    3.778344] x27: ffff0000089db068 x26: ffff8000f6e58000
[    3.783728] x25: 000000000000000e x24: 0000000000000800
[    3.789023] x23: ffff8000f6e587c8 x22: 0000000000000800
[    3.794319] x21: ffff000008908368 x20: ffff8000f6e1ab80
[    3.799615] x19: 000000000000006c x18: ffffffffffffffff
[    3.804910] x17: 0000000000000000 x16: 0000000000000000
[    3.810206] x15: ffff000009199648 x14: ffff000089244187
[    3.815502] x13: ffff000009244195 x12: ffff0000091ab000
[    3.820797] x11: 0000000005f5e0ff x10: ffff0000091998a0
[    3.826093] x9 : 0000000000000000 x8 : ffff8000f6e1ac00
[    3.831389] x7 : 0000000000000000 x6 : 0000000000000068
[    3.836676] x5 : ffff8000f6e1abe8 x4 : 0000000000000000
[    3.841971] x3 : ffff00000928c868 x2 : ffff8000f6e1abec
[    3.847267] x1 : ffff00000928c868 x0 : ffff8000f6e1abe8
[    3.852567] Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
[    3.857900] Call trace:
[    3.864473]  __memcpy_fromio+0x68/0x80
[    3.866683]  ufs_qcom_dump_dbg_regs+0x1c0/0x370
[    3.870522]  ufshcd_print_host_regs+0x168/0x190
[    3.874946]  ufshcd_init+0xd4c/0xde0
[    3.879459]  ufshcd_pltfrm_init+0x3c8/0x550
[    3.883264]  ufs_qcom_probe+0x24/0x60
[    3.887188]  platform_drv_probe+0x50/0xa0

Assuming aligned 32-bit registers, let's use readl, after making sure
that 'offset' and 'len' are indeed multiples of 4.

Fixes: ba80917d99 ("scsi: ufs: ufshcd_dump_regs to use memcpy_fromio")
Cc: <stable@vger.kernel.org>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 21:11:40 -05:00
Xiubo Li
40d883b091 scsi: tcmu: fix use after free
Fixes: a94a2572b9 ("scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Mike Christie <mchristi@redhat.com>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 20:54:00 -05:00
Varun Prakash
fe35a40e67 scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state()
Assign fc_vport to ln->fc_vport before calling csio_fcoe_alloc_vnp() to
avoid a NULL pointer dereference in csio_vport_set_state().

ln->fc_vport is dereferenced in csio_vport_set_state().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 20:40:59 -05:00
Ewan D. Milne
c41f59884b scsi: lpfc: nvmet: avoid hang / use-after-free when destroying targetport
We cannot wait on a completion object in the lpfc_nvme_targetport structure
in the _destroy_targetport() code path because the NVMe/fc transport will
free that structure immediately after the .targetport_delete() callback.
This results in a use-after-free, and a hang if slub_debug=FZPU is enabled.

Fix this by putting the completion on the stack.

Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 20:40:59 -05:00
Ewan D. Milne
7961cba6f7 scsi: lpfc: nvme: avoid hang / use-after-free when destroying localport
We cannot wait on a completion object in the lpfc_nvme_lport structure in
the _destroy_localport() code path because the NVMe/fc transport will free
that structure immediately after the .localport_delete() callback.  This
results in a use-after-free, and a hang if slub_debug=FZPU is enabled.

Fix this by putting the completion on the stack.

Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 20:40:59 -05:00
Christoph Hellwig
a8cf59a669 scsi: communicate max segment size to the DMA mapping code
When a host driver sets a maximum segment size we should not only propagate
that setting to the block layer, which can merge segments, but also to the
DMA mapping layer which can merge segments as well.

Fixes: 50c2e9107f ("scsi: introduce a max_segment_size host_template parameters")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-22 20:40:59 -05:00
Varun Prakash
9e8f1c7983 scsi: cxgb4i: add wait_for_completion()
In case of ->set_param() and ->bind_conn() cxgb4i driver does not wait for
cmd completion, this can create race conditions, to avoid this add
wait_for_completion().

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:33:49 -05:00
Thomas Bogendoerfer
4a01ab60f5 scsi: qla1280: set 64bit coherent mask
After Commit 54aed4dd35 ("MIPS: IP27: use dma_direct_ops") qla1280 driver
failed on SGI IP27 machines with

qla1280: QLA1040 found on PCI bus 0, dev 0
qla1280 0000:00:00.0: enabling device (0006 -> 0007)
qla1280: Failed to get request memory
qla1280: probe of 0000:00:00.0 failed with error -12

Reason is that SGI IP27 always generates 64bit DMA addresses and has no
fallback mode for 32bit DMA addresses implemented. QLA1280 supports 64bit
addressing for all DMA accesses so setting coherent mask to 64bit fixes the
issue.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:30:51 -05:00
Avri Altman
9be9db9f78 scsi: ufs: Fix geometry descriptor size
Albeit we no longer rely on those hard-coded descriptor sizes, we still use
them as our defaults, so better get it right. While adding its sysfs
entries, we forgot to update the geometry descriptor size. It is 0x48
according to UFS2.1, and wasn't changed in UFS3.0.

[mkp: typo]

Fixes: c720c09122 (scsi: ufs: sysfs: geometry descriptor)
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:29:32 -05:00
Shivasharan S
c65bfc8163 scsi: megaraid_sas: Retry reads of outbound_intr_status reg
commit 272652fcbf ("scsi: megaraid_sas: add retry logic in megasas_readl")
missed changing readl to megasas_readl in megasas_clear_intr_fusion().  For
Aero controllers, reads of outbound_intr_status register needs to be
retried.

Reported-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:26:05 -05:00
Manish Rangankar
34a2ce8876 scsi: qedi: Add ep_state for login completion on un-reachable targets
When the driver finds invalid destination MAC for the first un-reachable
target, and before completes the PATH_REQ operation, set new ep_state to
OFFLDCONN_NONE so that as part of driver ep_poll mechanism, the upper
open-iscsi layer is notified to complete the login process on the first
un-reachable target and thus proceed login to other reachable targets.

Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:24:09 -05:00
Stanley Chu
ce9e7bce43 scsi: ufs: Fix system suspend status
hba->is_sys_suspended is set after successful system suspend but
not clear after successful system resume.

According to current behavior, hba->is_sys_suspended will not be set if
host is runtime-suspended but not system-suspended. Thus we shall aligh the
same policy: clear this flag even if host remains runtime-suspended after
ufshcd_system_resume is successfully returned.

Simply fix this flag to correct host status logs.

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 22:16:37 -05:00
Ming Lei
f0783d43dd scsi: qla2xxx: Use correct number of vectors for online CPUs
When SCSI-MQ is enabled, in some case system would present
nr_possible_cpus() which is greater than requested vectors by the
driver. This results into driver being able to get larger number of MSI-X
vectors than actual online CPUs.  Driver then uses
pci_alloc_irq_vectors_affinity() to assign 1:1 mapping and affinity for
each MSI-x vector to CPUs. When the command is submitted using MSI-x
vector, assigned to offline CPU, it results in an ABTS and system
hang. This hang is result of a driver not being able to process interrupt
on a vector assigned to an Off-line CPUs

This patch fixes this issue by setting irq_offset value for the
blk_mq_pci_map_queues() to use only those CPUs which has CPU mask affinity
assigned and are online. By using the irq_offset value, driver will allow
online cpumask to decide which vectors are used in blk_mq_pci_map_queues().

Fixes: 5601236b6f ("scsi: qla2xxx: Add Block Multi Queue functionality.")
Cc: <stable@vger.kernel.org> #4.19
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 21:55:43 -05:00
John Garry
7bb25a89aa scsi: hisi_sas: Set protection parameters prior to adding SCSI host
Currently we set the protection parameters after calling scsi_add_host()
for v3 hw.

They should be set beforehand, so make this change.

Appearantly this fixes our DIX issue (not mainline yet) also, but more
testing required.

Fixes: d6a9000b81 ("scsi: hisi_sas: Add support for DIF feature for v2 hw")
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 21:38:43 -05:00
Xiubo Li
a94a2572b9 scsi: tcmu: avoid cmd/qfull timers updated whenever a new cmd comes
Currently there is one cmd timeout timer and one qfull timer for each udev,
and whenever any new command is coming in we will update the cmd timer or
qfull timer. For some corner cases the timers are always working only for
the ringbuffer's and full queue's newest cmd. That's to say the timer won't
be fired even if one cmd has been stuck for a very long time and the
deadline is reached.

This fix will keep the cmd/qfull timers to be pended for the oldest cmd in
ringbuffer and full queue, and will update them with the next cmd's
deadline only when the old cmd's deadline is reached or removed from the
ringbuffer and full queue.

Signed-off-by: Xiubo Li <xiubli@redhat.com>
Acked-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-11 20:58:52 -05:00
Logan Gunthorpe
cc29a1b0a3 scsi: isci: initialize shost fully before calling scsi_add_host()
scsi_mq_setup_tags(), which is called by scsi_add_host(), calculates the
command size to allocate based on the prot_capabilities. In the isci
driver, scsi_host_set_prot() is called after scsi_add_host() so the command
size gets calculated to be smaller than it needs to be.  Eventually,
scsi_mq_init_request() locates the 'prot_sdb' after the command assuming it
was sized correctly and a buffer overrun may occur.

However, seeing blk_mq_alloc_rqs() rounds up to the nearest cache line
size, the mistake can go unnoticed.

The bug was noticed after the struct request size was reduced by commit
9d037ad707 ("block: remove req->timeout_list")

Which likely reduced the allocated space for the request by an entire cache
line, enough that the overflow could be hit and it caused a panic, on boot,
at:

  RIP: 0010:t10_pi_complete+0x77/0x1c0
  Call Trace:
    <IRQ>
    sd_done+0xf5/0x340
    scsi_finish_command+0xc3/0x120
    blk_done_softirq+0x83/0xb0
    __do_softirq+0xa1/0x2e6
    irq_exit+0xbc/0xd0
    call_function_single_interrupt+0xf/0x20
    </IRQ>

sd_done() would call scsi_prot_sg_count() which reads the number of
entities in 'prot_sdb', but seeing 'prot_sdb' is located after the end of
the allocated space it reads a garbage number and erroneously calls
t10_pi_complete().

To prevent this, the calls to scsi_host_set_prot() are moved into
isci_host_alloc() before the call to scsi_add_host(). Out of caution, also
move the similar call to scsi_host_set_guard().

Fixes: 3d2d752549 ("[SCSI] isci: T10 DIF support")
Link: http://lkml.kernel.org/r/da851333-eadd-163a-8c78-e1f4ec5ec857@deltatee.com
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Intel SCU Linux support <intel-linux-scu@intel.com>
Cc: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 22:27:24 -05:00
Gustavo A. R. Silva
5bd5f66cf1 scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "Drop thru" and "Fall
Thru" with "fall through" annotations, which is what GCC is expecting to
find.

Also, in some cases a dash is added as a token in order to separate the
"fall through" annotation from the rest of the comment on the same line,
which is what GCC is expecting to find.

Addresses-Coverity-ID: 114979 ("Missing break in switch")
Addresses-Coverity-ID: 114980 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:26 -05:00
Gustavo A. R. Silva
12de280b36 scsi: smartpqi_init: fix boolean expression in pqi_device_remove_start
Fix boolean expression by using logical AND operator '&&' instead of
bitwise operator '&'.

This issue was detected with the help of Coccinelle.

Fixes: 1e46731efd ("scsi: smartpqi: check for null device pointers")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:26 -05:00
Stanley Chu
3f7e62bba0 scsi: core: Synchronize request queue PM status only on successful resume
The commit 356fd2663c ("scsi: Set request queue runtime PM status back to
active on resume") fixed up the inconsistent RPM status between request
queue and device. However changing request queue RPM status shall be done
only on successful resume, otherwise status may be still inconsistent as
below,

Request queue: RPM_ACTIVE
Device: RPM_SUSPENDED

This ends up soft lockup because requests can be submitted to underlying
devices but those devices and their required resource are not resumed.

For example,

After above inconsistent status happens, IO request can be submitted to UFS
device driver but required resource (like clock) is not resumed yet thus
lead to warning as below call stack,

WARN_ON(hba->clk_gating.state != CLKS_ON);
ufshcd_queuecommand
scsi_dispatch_cmd
scsi_request_fn
__blk_run_queue
cfq_insert_request
__elv_add_request
blk_flush_plug_list
blk_finish_plug
jbd2_journal_commit_transaction
kjournald2

We may see all behind IO requests hang because of no response from storage
host or device and then soft lockup happens in system. In the end, system
may crash in many ways.

Fixes: 356fd2663c (scsi: Set request queue runtime PM status back to active on resume)
Cc: stable@vger.kernel.org
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:26 -05:00
Julia Lawall
251f24e63f scsi: pm80xx: reduce indentation
Delete tab aligning a statement with the right hand side of a preceding
assignment rather than the left hand side.

Found with the help of Coccinelle.

[mkp: added space]

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:25 -05:00
YueHaibing
72b4a0465f scsi: qla4xxx: check return code of qla4xxx_copy_from_fwddb_param
The return code should be check while qla4xxx_copy_from_fwddb_param fails.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:25 -05:00
Tomas Henzl
d1f38d995e scsi: megaraid_sas: correct an info message
This was apparently forgotten in
894169db1 ("scsi: megaraid_sas: Use 63-bit DMA addressing").

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:25 -05:00
Leo Zhang
621a4367d6 scsi: target/iscsi: fix error msg typo when create lio_qr_cache failed
Signed-off-by: Leo Zhang <nguzcf@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:25 -05:00
Ivan Mironov
44759979a4 scsi: sd: Fix cache_type_store()
Changing of caching mode via /sys/devices/.../scsi_disk/.../cache_type may
fail if device responds to MODE SENSE command with DPOFUA flag set, and
then checks this flag to be not set on MODE SELECT command.

In this scenario, when trying to change cache_type, write always fails:

	# echo "none" >cache_type
	bash: echo: write error: Invalid argument

And following appears in dmesg:

	[13007.865745] sd 1:0:1:0: [sda] Sense Key : Illegal Request [current]
	[13007.865753] sd 1:0:1:0: [sda] Add. Sense: Invalid field in parameter list

From SBC-4 r15, 6.5.1 "Mode pages overview", description of DEVICE-SPECIFIC
PARAMETER field in the mode parameter header:
	...
	The write protect (WP) bit for mode data sent with a MODE SELECT
	command shall be ignored by the device server.
	...
	The DPOFUA bit is reserved for mode data sent with a MODE SELECT
	command.
	...

The remaining bits in the DEVICE-SPECIFIC PARAMETER byte are also reserved
and shall be set to zero.

[mkp: shuffled commentary to commit description]

Cc: stable@vger.kernel.org
Signed-off-by: Ivan Mironov <mironov.ivan@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-01-08 21:57:25 -05:00
Linus Torvalds
bfeffd1552 Linux 5.0-rc1 2019-01-06 17:08:20 -08:00
Linus Torvalds
85e1ffbd42 Kbuild late updates for v4.21
- improve boolinit.cocci and use_after_iter.cocci semantic patches
 
 - fix alignment for kallsyms
 
 - move 'asm goto' compiler test to Kconfig and clean up jump_label
   CONFIG option
 
 - generate asm-generic wrappers automatically if arch does not implement
   mandatory UAPI headers
 
 - remove redundant generic-y defines
 
 - misc cleanups
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJcMV5GAAoJED2LAQed4NsGs9gQAI/oGg8wJgk9a7+dJCX245W5
 F4ReftnQd4AFptFCi9geJkr+sfViXNgwPLqlJxiXz8Qe8XP7z3LcArDw3FUzwvGn
 bMSBiN9ggwWkOFgF523XesYgUVtcLpkNch/Migzf1Ac0FHk0G9o7gjcdsvAWHkUu
 qFwtNcUB6PElRbhsHsh5qCY1/6HaAXgf/7O7wztnaKRe9myN6f2HzT4wANS9HHde
 1e1r0LcIQeGWfG+3va3fZl6SDxSI/ybl244OcDmDyYl6RA1skSDlHbIBIFgUPoS0
 cLyzoVj+GkfI1fRFEIfou+dj7lpukoAXHsggHo0M+ofqtbMF+VB2T3jvg4txanCP
 TXzDc+04QUguK5yVnBfcnyC64Htrhnbq0eGy43kd1VZWAEGApl+680P8CRsWU3ZV
 kOiFvZQ6RP/Ssw+a42yU3SHr31WD7feuQqHU65osQt4rdyL5wnrfU1vaUvJSkltF
 cyPr9Kz/Ism0kPodhpFkuKxwtlKOw6/uwdCQoQHtxAPkvkcydhYx93x3iE0nxObS
 CRMximiRyE12DOcv/3uv69n0JOPn6AsITcMNp8XryASYrR2/52txhGKGhvo3+Zoq
 5pwc063JsuxJ/5/dcOw/erQar5d1eBRaBJyEWnXroxUjbsLPAznE+UIN8tmvyVly
 SunlxNOXBdYeWN6t6S3H
 =I+r6
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - improve boolinit.cocci and use_after_iter.cocci semantic patches

 - fix alignment for kallsyms

 - move 'asm goto' compiler test to Kconfig and clean up jump_label
   CONFIG option

 - generate asm-generic wrappers automatically if arch does not
   implement mandatory UAPI headers

 - remove redundant generic-y defines

 - misc cleanups

* tag 'kbuild-v4.21-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: rename generated .*conf-cfg to *conf-cfg
  kbuild: remove unnecessary stubs for archheader and archscripts
  kbuild: use assignment instead of define ... endef for filechk_* rules
  arch: remove redundant UAPI generic-y defines
  kbuild: generate asm-generic wrappers if mandatory headers are missing
  arch: remove stale comments "UAPI Header export list"
  riscv: remove redundant kernel-space generic-y
  kbuild: change filechk to surround the given command with { }
  kbuild: remove redundant target cleaning on failure
  kbuild: clean up rule_dtc_dt_yaml
  kbuild: remove UIMAGE_IN and UIMAGE_OUT
  jump_label: move 'asm goto' support test to Kconfig
  kallsyms: lower alignment on ARM
  scripts: coccinelle: boolinit: drop warnings on named constants
  scripts: coccinelle: check for redeclaration
  kconfig: remove unused "file" field of yylval union
  nds32: remove redundant kernel-space generic-y
  nios2: remove unneeded HAS_DMA define
2019-01-06 16:33:10 -08:00
Linus Torvalds
ac5eed2b41 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling updates form Ingo Molnar:
 "A final batch of perf tooling changes: mostly fixes and small
  improvements"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  perf session: Add comment for perf_session__register_idle_thread()
  perf thread-stack: Fix thread stack processing for the idle task
  perf thread-stack: Allocate an array of thread stacks
  perf thread-stack: Factor out thread_stack__init()
  perf thread-stack: Allow for a thread stack array
  perf thread-stack: Avoid direct reference to the thread's stack
  perf thread-stack: Tidy thread_stack__bottom() usage
  perf thread-stack: Simplify some code in thread_stack__process()
  tools gpio: Allow overriding CFLAGS
  tools power turbostat: Override CFLAGS assignments and add LDFLAGS to build command
  tools thermal tmon: Allow overriding CFLAGS assignments
  tools power x86_energy_perf_policy: Override CFLAGS assignments and add LDFLAGS to build command
  perf c2c: Increase the HITM ratio limit for displayed cachelines
  perf c2c: Change the default coalesce setup
  perf trace beauty ioctl: Beautify USBDEVFS_ commands
  perf trace beauty: Export function to get the files for a thread
  perf trace: Wire up ioctl's USBDEBFS_ cmd table generator
  perf beauty ioctl: Add generator for USBDEVFS_ ioctl commands
  tools headers uapi: Grab a copy of usbdevice_fs.h
  perf trace: Store the major number for a file when storing its pathname
  ...
2019-01-06 16:30:14 -08:00
Linus Torvalds
574823bfab Change mincore() to count "mapped" pages rather than "cached" pages
The semantics of what "in core" means for the mincore() system call are
somewhat unclear, but Linux has always (since 2.3.52, which is when
mincore() was initially done) treated it as "page is available in page
cache" rather than "page is mapped in the mapping".

The problem with that traditional semantic is that it exposes a lot of
system cache state that it really probably shouldn't, and that users
shouldn't really even care about.

So let's try to avoid that information leak by simply changing the
semantics to be that mincore() counts actual mapped pages, not pages
that might be cheaply mapped if they were faulted (note the "might be"
part of the old semantics: being in the cache doesn't actually guarantee
that you can access them without IO anyway, since things like network
filesystems may have to revalidate the cache before use).

In many ways the old semantics were somewhat insane even aside from the
information leak issue.  From the very beginning (and that beginning is
a long time ago: 2.3.52 was released in March 2000, I think), the code
had a comment saying

  Later we can get more picky about what "in core" means precisely.

and this is that "later".  Admittedly it is much later than is really
comfortable.

NOTE! This is a real semantic change, and it is for example known to
change the output of "fincore", since that program literally does a
mmmap without populating it, and then doing "mincore()" on that mapping
that doesn't actually have any pages in it.

I'm hoping that nobody actually has any workflow that cares, and the
info leak is real.

We may have to do something different if it turns out that people have
valid reasons to want the old semantics, and if we can limit the
information leak sanely.

Cc: Kevin Easton <kevin@guarana.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Masatake YAMATO <yamato@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-06 13:43:02 -08:00
Linus Torvalds
94bd8a05cd Fix 'acccess_ok()' on alpha and SH
Commit 594cc251fd ("make 'user_access_begin()' do 'access_ok()'")
broke both alpha and SH booting in qemu, as noticed by Guenter Roeck.

It turns out that the bug wasn't actually in that commit itself (which
would have been surprising: it was mostly a no-op), but in how the
addition of access_ok() to the strncpy_from_user() and strnlen_user()
functions now triggered the case where those functions would test the
access of the very last byte of the user address space.

The string functions actually did that user range test before too, but
they did it manually by just comparing against user_addr_max().  But
with user_access_begin() doing the check (using "access_ok()"), it now
exposed problems in the architecture implementations of that function.

For example, on alpha, the access_ok() helper macro looked like this:

  #define __access_ok(addr, size) \
        ((get_fs().seg & (addr | size | (addr+size))) == 0)

and what it basically tests is of any of the high bits get set (the
USER_DS masking value is 0xfffffc0000000000).

And that's completely wrong for the "addr+size" check.  Because it's
off-by-one for the case where we check to the very end of the user
address space, which is exactly what the strn*_user() functions do.

Why? Because "addr+size" will be exactly the size of the address space,
so trying to access the last byte of the user address space will fail
the __access_ok() check, even though it shouldn't.  As a result, the
user string accessor functions failed consistently - because they
literally don't know how long the string is going to be, and the max
access is going to be that last byte of the user address space.

Side note: that alpha macro is buggy for another reason too - it re-uses
the arguments twice.

And SH has another version of almost the exact same bug:

  #define __addr_ok(addr) \
        ((unsigned long __force)(addr) < current_thread_info()->addr_limit.seg)

so far so good: yes, a user address must be below the limit.  But then:

  #define __access_ok(addr, size)         \
        (__addr_ok((addr) + (size)))

is wrong with the exact same off-by-one case: the case when "addr+size"
is exactly _equal_ to the limit is actually perfectly fine (think "one
byte access at the last address of the user address space")

The SH version is actually seriously buggy in another way: it doesn't
actually check for overflow, even though it did copy the _comment_ that
talks about overflow.

So it turns out that both SH and alpha actually have completely buggy
implementations of access_ok(), but they happened to work in practice
(although the SH overflow one is a serious serious security bug, not
that anybody likely cares about SH security).

This fixes the problems by using a similar macro on both alpha and SH.
It isn't trying to be clever, the end address is based on this logic:

        unsigned long __ao_end = __ao_a + __ao_b - !!__ao_b;

which basically says "add start and length, and then subtract one unless
the length was zero".  We can't subtract one for a zero length, or we'd
just hit an underflow instead.

For a lot of access_ok() users the length is a constant, so this isn't
actually as expensive as it initially looks.

Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-06 13:25:45 -08:00
Linus Torvalds
baa6707381 Add Adiantum support for fscrypt
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlwyBbEACgkQ8vlZVpUN
 gaNrawgAhYWrPwsEFM17dziRWRm8Ub9QgQUK6JRt+vE5KCRRVdXgJSLVH4esW9rJ
 X+QQ0diT8ZMKjdbsyz0cVmwP7nqQ5EKzjxts6J8vtbWDB6+nvaDLNdicJgUOprcT
 jIi8/45XKmyGUVO9Au6Wdda/zZi4dQBkXd+zUFGWYQRYL0LgmboWHKlaWueu7Qha
 xVtavYPSKUSMH8+r1F+HU6P41+1IBiuK4tCwfKfAqJ367Ushzk9xVKHNGrGDAQNi
 BTbn4NOOFaYvmVudJbQjD3tHtuQu2JsxlclB5KAtLBm1r3+vb3fMGsNyPBUmNp6Y
 YE/xKhACP4kYlk9xCG7vWcWGyTu90g==
 =HR7f
 -----END PGP SIGNATURE-----

Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt

Pull fscrypt updates from Ted Ts'o:
 "Add Adiantum support for fscrypt"

* tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: add Adiantum support
2019-01-06 12:21:11 -08:00
Linus Torvalds
215240462a Fix a number of ext4 bugs.
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAlwyAi0ACgkQ8vlZVpUN
 gaMtEgf9GyIJ5UnbR3J5+tpOAjx2GFJmTgpinWcfqVBrWwQDTigxiLm5sRIz5ToY
 hoWvCIxWm9LgrdS0unYOUNzRyzSZisNAtceowbPErlV5NPS9zcftVt4pRYZ6hIZK
 L3wKQ/PdVxIaekP9SXvFx5tfnHSB6CTGOJu1YMlF8ERm4tXUXHIwHzwUwrYqPYN0
 5i0uWxbx7qMlEzTf/9sEMYrmdHjsrPlXe0kIP0sMyd7hJl28l0QTNQ2s126fRNLK
 wkVMduacGuFGLwqbh7O1QrayWtcni7PKgTW9MfTsjLbg/EWx77auZBTSLfEO+ZKq
 2gxxCbM0sID5sgVaw6ku8QJkfiU2fw==
 =aQSK
 -----END PGP SIGNATURE-----

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 bug fixes from Ted Ts'o:
 "Fix a number of ext4 bugs"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix special inode number checks in __ext4_iget()
  ext4: track writeback errors using the generic tracking infrastructure
  ext4: use ext4_write_inode() when fsyncing w/o a journal
  ext4: avoid kernel warning when writing the superblock to a dead device
  ext4: fix a potential fiemap/page fault deadlock w/ inline_data
  ext4: make sure enough credits are reserved for dioread_nolock writes
2019-01-06 12:19:23 -08:00
Linus Torvalds
e2b745f469 dma-mapping fixes for Linux 4.21-rc1
Fix various regressions introduced in this cycles:
 
  - fix dma-debug tracking for the map_page / map_single consolidatation
  - properly stub out DMA mapping symbols for !HAS_DMA builds to avoid
    link failures
  - fix AMD Gart direct mappings
  - setup the dma address for no kernel mappings using the remap
    allocator
 -----BEGIN PGP SIGNATURE-----
 
 iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAlwyR9ULHGhjaEBsc3Qu
 ZGUACgkQD55TZVIEUYPvOA/+L+32p2pm8o6NTgvtRvqsKNrbOm02fORLrhBqAiok
 AcirFDxTfMuUWU2isr7E7WNqwEmUQ1nVUa+I0IJ/IJFfKdTggXcaTX1M19+62KWa
 1LHpZLg1t2rl2yFQHgTrFKr5sz1PwUKZO8UbrYaYYgLgQkWDRzJs4E/tFNju8pMm
 0Usexo/bkI5mreJBImMsFwAnuk0k3NT058XIeD+eNttKjcuz5kEH+bE/999vySW3
 sOj9Peic/EFelOGb4ODxUIPjhiGFMv5dVusSAsFBH26iwQfX/tFSmXhrI5cnDewg
 NlREennfyM+6uTH/DO+BlX7eGCRYbFc1GU5H9q4rRMXhEam6oc2AzVKuElJOVstZ
 XVjP6zTwmuOh/5ff0NG6EPjA/OFcmlBEsmeWu4xSS8KsNILOkpUaPed/uWnA7O+2
 mvU104NA5cHgVMgiGNM/4ilirkEZEFEHYhafH42bQxjMigm7ZHN14NtwM7StLTu6
 QgyfPUcW/LmHj2scgvB1AZ+iQX0z7yJJMGifUxtz+eMCWCC7neOJ7JLvNnS9WI5w
 9RwYaCOcDAZyAmCpbSADWxeG9cfsCDp8wmaGs3YVyhkDU8tCSqbxWJutvyDQnC17
 GtZ0vYLTaJXBCq1L/FC0y8NCCGgvySPXYU7/ZYuOCzS4q2jvjwTWD3dKodvnS+mb
 B0s=
 =H9J6
 -----END PGP SIGNATURE-----

Merge tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:
 "Fix various regressions introduced in this cycles:

   - fix dma-debug tracking for the map_page / map_single
     consolidatation

   - properly stub out DMA mapping symbols for !HAS_DMA builds to avoid
     link failures

   - fix AMD Gart direct mappings

   - setup the dma address for no kernel mappings using the remap
     allocator"

* tag 'dma-mapping-4.21-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-direct: fix DMA_ATTR_NO_KERNEL_MAPPING for remapped allocations
  x86/amd_gart: fix unmapping of non-GART mappings
  dma-mapping: remove a few unused exports
  dma-mapping: properly stub out the DMA API for !CONFIG_HAS_DMA
  dma-mapping: remove dmam_{declare,release}_coherent_memory
  dma-mapping: implement dmam_alloc_coherent using dmam_alloc_attrs
  dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs
2019-01-06 11:47:26 -08:00
Linus Torvalds
12133258d7 chrome platform changes for v4.21
Changes for EC_MKBP_EVENT_SENSOR_FIFO handling.
 Also, maintainership changes. Olofj out, Enric balletbo in.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE6gYDF28Li+nEiKLaHwn1ewov5lgFAlwucOAACgkQHwn1ewov
 5lhuzA//VHzRpU+9DntQ1N8PWBzEH4+AX1nJSUh18CQ0h9dkHP/34vd5b5ZKZogY
 kwBAvfylxJnMYyTEoLa6y+Cvdy+YqGg5ltx41ZTxIF3nMKTvgLCKIxjWurrg9+Ip
 DLJ6NuhSyJfXnKigJW/E5j/1J8fL9xpJDvzQh0psfK37NZiHeQb6tDaKJ8gWNm0O
 KLrz+PWaKWJICoJIJtdTE/bplxneQNySVoA7xWKC++2cJMrbjCOg4PomHH20sGqR
 sCQNmpJU/ntVqPNnRuuOpW4tcF+Ua1gZnkdp6QXaJNFrgtG0JNwyiQk9Q5PA3Mhd
 /6GEv1TZWJK0b4T9urDQOypbN0t9VWBp/12SaGKbGOhC9MQEYiihOGzVBxJljKml
 KuWke6AoKr3JVAjItoSaplJy2u47sZ4sYlkqxSDrklGatP58l2i72Un3Z+xO9b1z
 9tz6X2hSRJHWZ/DwE7l9v63cHlSkEVEHuZRS2bDv23VRCLEwFmX43346ACCCRJFQ
 Ei+/npGQB0bBjHgpBUHMt5YpHt0dlzqRTLoGrUgTmxKR9KiinPmM/0Ks0/G0ZRGg
 Kygv71y9lL1Npf2rERLCdMgsp0cOaQ+ykv1JsfNIlbAWeSjhEDre5G0DS6cOZmT4
 dZ7D4nh9ERBHv/5jiqvGaU5HWyU9LFhYFXe882KF9BV9wgFLrXk=
 =fyvk
 -----END PGP SIGNATURE-----

Merge tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform

Pull chrome platform updates from Benson Leung:

 - Changes for EC_MKBP_EVENT_SENSOR_FIFO handling.

 - Also, maintainership changes. Olofj out, Enric balletbo in.

* tag 'tag-chrome-platform-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform:
  MAINTAINERS: add maintainers for ChromeOS EC sub-drivers
  MAINTAINERS: platform/chrome: Add Enric as a maintainer
  MAINTAINERS: platform/chrome: remove myself as maintainer
  platform/chrome: don't report EC_MKBP_EVENT_SENSOR_FIFO as wakeup
  platform/chrome: straighten out cros_ec_get_{next,host}_event() error codes
2019-01-06 11:40:06 -08:00
Linus Torvalds
66e012f618 hwspinlock updates for v4.21
This adds support for the hardware semaphores found in STM32MP1.
 -----BEGIN PGP SIGNATURE-----
 
 iQJPBAABCAA5FiEEBd4DzF816k8JZtUlCx85Pw2ZrcUFAlwuaOMbHGJqb3JuLmFu
 ZGVyc3NvbkBsaW5hcm8ub3JnAAoJEAsfOT8Nma3FaTYQAKeBTYqoqYfkx/iecajM
 wtlpzlxCibkUGHyoZhPgWPt7Xc61/7jWhUB/JsIfVQAptlHqzwyxOGqW4z07TI5O
 /hwO5kzHQ79kDdIedmvmmPCZbo8n/xn50/Y/LpEMQrFKUtfmMXBXX6geIo8KxcxB
 uMPCv75tTgoqzz4+/ywX9qbhkOuLa6tfcnLO0ES7mQl5H8e1SIHJP0sL74XbLqqy
 z0N5eO23vPu/IE2YRi9e5gKNFGFKTovGK9oHKgab0aOtb5l67N8fBaZfJ3IE9EOT
 pi5rtIlr0SN3p8uhkOJAor7tNc9kNvm6gZv6Px2ROg12o9tNwOmWpOT/SH7pSNwD
 7QlATJGygD9oU76BT31OKrulCH3wAVxGX7TVrOnueqWJJeAQtGZd3xCqNF2ThgEh
 kCd6asCcdDRNE6OLxU2LeWlEsivClxLUuPpSvTqeUWCAhDnBphvmSgDwWhlsJkOT
 R2Lbaa1PhTeCY0tVwLsHvRq24eQqLWppF/6XwdaUeCb7R3rqlDEeqYyxZI42xRF9
 PlnitBXem27ZCGEY7f+jLgnPVOHdGFK1biVcPLtTghG5R8BxOQgggnkJGTIImotK
 T3eQF+EbFSV+fRfnMAm080mjveaqcFMueWavZCMwbn0fMJFpikbputDD6hV27usI
 pvGS1zH5vSxA4h5RBJGayFw1
 =le6D
 -----END PGP SIGNATURE-----

Merge tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc

Pull hwspinlock updates from Bjorn Andersson:
 "This adds support for the hardware semaphores found in STM32MP1"

* tag 'hwlock-v4.21' of git://github.com/andersson/remoteproc:
  hwspinlock: fix return value check in stm32_hwspinlock_probe()
  hwspinlock: add STM32 hwspinlock device
  dt-bindings: hwlock: Document STM32 hwspinlock bindings
2019-01-06 11:37:44 -08:00
Eric Biggers
8094c3ceb2 fscrypt: add Adiantum support
Add support for the Adiantum encryption mode to fscrypt.  Adiantum is a
tweakable, length-preserving encryption mode with security provably
reducible to that of XChaCha12 and AES-256, subject to a security bound.
It's also a true wide-block mode, unlike XTS.  See the paper
"Adiantum: length-preserving encryption for entry-level processors"
(https://eprint.iacr.org/2018/720.pdf) for more details.  Also see
commit 059c2a4d8e ("crypto: adiantum - add Adiantum support").

On sufficiently long messages, Adiantum's bottlenecks are XChaCha12 and
the NH hash function.  These algorithms are fast even on processors
without dedicated crypto instructions.  Adiantum makes it feasible to
enable storage encryption on low-end mobile devices that lack AES
instructions; currently such devices are unencrypted.  On ARM Cortex-A7,
on 4096-byte messages Adiantum encryption is about 4 times faster than
AES-256-XTS encryption; decryption is about 5 times faster.

In fscrypt, Adiantum is suitable for encrypting both file contents and
names.  With filenames, it fixes a known weakness: when two filenames in
a directory share a common prefix of >= 16 bytes, with CTS-CBC their
encrypted filenames share a common prefix too, leaking information.
Adiantum does not have this problem.

Since Adiantum also accepts long tweaks (IVs), it's also safe to use the
master key directly for Adiantum encryption rather than deriving
per-file keys, provided that the per-file nonce is included in the IVs
and the master key isn't used for any other encryption mode.  This
configuration saves memory and improves performance.  A new fscrypt
policy flag is added to allow users to opt-in to this configuration.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-01-06 08:36:21 -05:00
Linus Torvalds
b5aef86e08 A handful of late-arriving documentation fixes.
-----BEGIN PGP SIGNATURE-----
 
 iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAlwv15sPHGNvcmJldEBs
 d24ubmV0AAoJEBdDWhNsDH5YxksH/2kdPM4ltyUfb7Nl3ioX6UQdiNf8zzYWXG+6
 TllwzGWpI1nK5H+hOGRVLeF/CPNdij/9ScdMhRWTb7Di2mlp3py+5bebZgkTA4KJ
 1wy+wnonbtNkHenAjP/e14PL8/JSsyTugADnLwxb4PiURiHiAhvM4jTuxsYAhAQf
 LlBoGyfowzI/laNRoh8RonHFtPI3U2oMkhtdx5OIySMlMJNgEIID63KkJsdsIujz
 CDUijaFX226s9PiobMNX09Y99fSfOly4yBASabePwrUtVKKL7AJ/vBTgqgdgVTBk
 ixTaooEYyLWaPSjMFNYlWH9hCu+N7MZAhrdNNPhHjgGJjTjaFXQ=
 =VfF6
 -----END PGP SIGNATURE-----

Merge tag 'docs-5.0-fixes' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes"

* tag 'docs-5.0-fixes' of git://git.lwn.net/linux:
  doc: filesystems: fix bad references to nonexistent ext4.rst file
  Documentation/admin-guide: update URL of LKML information link
  Docs/kernel-api.rst: Remove blk-tag.c reference
2019-01-05 18:35:02 -08:00
Linus Torvalds
15b215e5aa FireWire (IEEE 1394) subsystem patch:
- remove an explicit dependency in Kconfig which is implied by another dependency
 -----BEGIN PGP SIGNATURE-----
 
 iQJOBAABCAA4FiEElVwAmOXEbvmhUkgUefNvslRdedAFAlww1TAaHHN0ZWZhbnJA
 czVyNi5pbi1iZXJsaW4uZGUACgkQefNvslRdedBzJw/9Hwu5PIjPl6aLe7MLriZ8
 Av1UbVTKoT79eNDUK9EMN/1VPn+dYeWrko2y6c99YBACuI/VtSScLYbgFcBpzG/9
 witPFLL1LYhA/t4w3jLzPmnGv0+X4zCbO7HQG1CG24XlxvmQJkljvXi4RsmUTcFF
 ez5JRpK5DesDbx3WHDXSLrM+Jivrwdc5kImw+TkgqDIybsnrKgIlr3yQrdxc2bE9
 NoyT42tntXj6/fYTQ7JA2A9d94sJ6duV0jNeJ/r86/tu4dkUyZVWo+B45VJPEu37
 65/H1xIgI4tbqbrcoDK7H+HakZ3qLl19arTV4X6m+idPeLv74+bGYwSB0qp1BiQA
 VLwR0t0g3YcNAZOw5iFN/FuzpUYvlHRxkGIEVA8RLRL9sxSUYIbGrBZ77f1X7C82
 e4SvwxeOWr+4t4QcMQsEldwb1hg1Rm2a1benbd+5yciyzztGGGHnCIw+aehxBL2l
 1RFJsmSB4uU7cxpUwdvAAYnXOytEbRZey9nBn+APlt1zlzrv9Ptts/tE8gw/P10N
 /vVa7rPW+OYkQjGxjbYarM+9l169txcjd0wSM7t3rMfvtnDGbzla6WOLsDMs/yh0
 7H9mFk02IbolEee91TAym1KXnPLZLdv9psfpS1I2Pihy+sx7Wk2zLDK6ICQ0pbhZ
 R379ujTcy2WFzJcyYqkmp5Y=
 =1Qr0
 -----END PGP SIGNATURE-----

Merge tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewire fixlet from Stefan Richter:
 "Remove an explicit dependency in Kconfig which is implied by another
  dependency"

* tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: Remove depends on HAS_DMA in case of platform dependency
2019-01-05 18:33:21 -08:00
Linus Torvalds
d7252d0d36 for-linus-20190104
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAlwvz9EQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgprVuD/9dD3K/Fhl22UHyuL7mwCyUX8BQ6fwniNlI
 96a7IpAqdYG52MeZ8Ns1WZwWzzlNsJ6IUFLTUeHboMq1POsVSFBG2xWJEhwMWHq1
 ayWXH5MkeV2IM31o/LFbQM1WNtChqCqlHUKnpvB3UiGaozaTa4pqkNNRuEMTd0CA
 RSrXGEDtkPFdOWeQQuOqfjYD1K13GLFMFw9a3vXV/TYJkPE+w+1tR2ms49N7wqX3
 Kdh7ddGkJyBOre9kg0GXrjgXTgpanQOJE9152wIoWL0U9ZYJk91SkwQ2rOmgwFSm
 KLD4gI4rbrBT2/KLCEwv1PmmSNR0yiikPPeGZLIZy/hfmJEreECrv/5wDAz/0cBU
 KPgheNf7ZecDUxa/use9F15m5VYkd8TxnwssXD47GZ26Sp/UHU5/cuGsnxxuuiqU
 AgYVsgZxnWLhj1rhSB+8WZRWjoLX/1UMkt/mNOMIhVBCf0QGGtpl1FocIxHpDa1q
 w9AUS4JNHuVLU4npnTKMXXTJcixa2MT/8Lhhv9OTDFLWDGTVFed12NA8sX6R0vA8
 JnEFuKin03IdqRQyLM3s8YHJpWS/tni6YzCmaFE6g7K7MwuiFn25qsN3LwS4QYU5
 5HZ5Za8jpqQtJ2ESpcOSOOD7ILC3qOyIgDtatvdSv+13kgyT7EAWXWDIJ6KWzeGN
 FSbgtrTu2w==
 =bh1v
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20190104' of git://git.kernel.dk/linux-block

Pull block updates and fixes from Jens Axboe:

 - Pulled in MD changes that Shaohua had queued up for 4.21.

   Unfortunately we lost Shaohua late 2018, I'm sending these in on his
   behalf.

 - In conjunction with the above, I added a CREDITS entry for Shaoua.

 - sunvdc queue restart fix (Ming)

* tag 'for-linus-20190104' of git://git.kernel.dk/linux-block:
  Add CREDITS entry for Shaohua Li
  block: sunvdc: don't run hw queue synchronously from irq context
  md: fix raid10 hang issue caused by barrier
  raid10: refactor common wait code from regular read/write request
  md: remvoe redundant condition check
  lib/raid6: add option to skip algo benchmarking
  lib/raid6: sort algos in rough performance order
  lib/raid6: check for assembler SSSE3 support
  lib/raid6: avoid __attribute_const__ redefinition
  lib/raid6: add missing include for raid6test
  md: remove set but not used variable 'bi_rdev'
2019-01-05 18:29:13 -08:00
Linus Torvalds
0fe4e2d5cd drm i915 gvt, amdgpu, core fixes
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcL65eAAoJEAx081l5xIa+y7EP+wQnTk3GV7rKiIi5LEtux5xW
 X2tTaPKHnwrMYjRaP2VNUntJPH6Wxcby3OHGNvGMe1IqNGL/5qRLQ/g1rSSPuM4z
 rYwWR/ooDU/KwYvsT/o+DSO62AoVzIqx8gn8+ShirRN3MdobCcwDebd5oqKjduOn
 hRy9WQwgPOnDG1D3fRWOGSzOE1K9yDFCUaR0AmhUehn9NvsztQGamMBBwMNg+y52
 a5vu+nSLxQrv3ZyZ5TQUgAzi2pWFtC6QxIVuLpl5TqFA3vdRVyN1T78klDnQ7WU7
 6GY1yq9D923c1Tfa0RZoXnE++bX91KKJ5y9YFuNFv8X/th6UoEzRrOPDINfLoZv3
 JsPPSPAiZTgoXc/RGfoMbnidajNB7Gx+No+Pd8P6MeY5H1E+ivMXt5MrOgcMXUqk
 FajthiuSlaB+u5OjNjuS6gBbAMIKw7Idg4hEFSabj91qhJIet/fPhzNmp0HPJ1wF
 XlNnxI7XOytCAORrjLy2q4/lkaoG2AlVpZzeMLgXSxGGlSCtIpDUIqgQbtV1ppCi
 RboQ8yMflRejeK6oXoC92mI8yDB6rwoQy2tK0Hvnag5/q1r7AVYJq+3890NFEU4X
 F5TuCgvhswdkTEJUED1G6pnX7aQzW0dh6KrCltF34sFzD1etYb150En7laa+2kmX
 G5HfZbkLwscPt91moA6B
 =hFld
 -----END PGP SIGNATURE-----

Merge tag 'drm-next-2019-01-05' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Happy New Year, just decloaking from leave to get some stuff from the
  last week in before rc1:

  core:
   - two regression fixes for damage blob and atomic

  i915 gvt:
   - Some missed GVT fixes from the original pull

  amdgpu:
   - new PCI IDs
   - SR-IOV fixes
   - DC fixes
   - Vega20 fixes"

* tag 'drm-next-2019-01-05' of git://anongit.freedesktop.org/drm/drm: (53 commits)
  drm: Put damage blob when destroy plane state
  drm: fix null pointer dereference on null state pointer
  drm/amdgpu: Add new VegaM pci id
  drm/ttm: Use drm_debug_printer for all ttm_bo_mem_space_debug output
  drm/amdgpu: add Vega20 PSP ASD firmware loading
  drm/amd/display: Fix MST dp_blank REG_WAIT timeout
  drm/amd/display: validate extended dongle caps
  drm/amd/display: Use div_u64 for flip timestamp ns to ms
  drm/amdgpu/uvd:Change uvd ring name convention
  drm/amd/powerplay: add Vega20 LCLK DPM level setting support
  drm/amdgpu: print process info when job timeout
  drm/amdgpu/nbio7.4: add hw bug workaround for vega20
  drm/amdgpu/nbio6.1: add hw bug workaround for vega10/12
  drm/amd/display: Optimize passive update planes.
  drm/amd/display: verify lane status before exiting verify link cap
  drm/amd/display: Fix bug with not updating VSP infoframe
  drm/amd/display: Add retry to read ddc_clock pin
  drm/amd/display: Don't skip link training for empty dongle
  drm/amd/display: Wait edp HPD to high in detect_sink
  drm/amd/display: fix surface update sequence
  ...
2019-01-05 18:25:19 -08:00
Linus Torvalds
3954e1d031 4.21 merge window 2nd pull request
Over the break a few defects were found, so this is a -rc style pull
 request of various small things that have been posted.
 
 - An attempt to shorten RCU grace period driven delays showed crashes
   during heavier testing, and has been entirely reverted
 
 - A missed merge/rebase error between the advise_mr and ib_device_ops
   series
 
 - Some small static analysis driven fixes from Julia and Aditya
 
 - Missed ability to create a XRC_INI in the devx verbs interop series
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAlwu4TIACgkQOG33FX4g
 mxqPgw//XU7X2/AbXALQOvZgI6y/qs6BSzucGEkTEEMyJ5KvjS537yJqN7ltfe9d
 BiJLIpCUJ2NKqyUnbah7nHT06Mm7wZM+FkIxtf2N3te/MfYd5HwIvUdIwwmX+VEc
 k1DcRD1EfowZCSgBAVQAqqJu6oBW//Wi48BQ7HNGvyXVJJ/F+uKIM/Am6oGUTV/5
 69yo0ZfqP/+bRfbNvg7cHqWafCL8ed70pIqpoL67hRfHcxUW/TQVV6njw8FNB/MH
 DNL6pN3oncUweyOPDV/Z6Cx+De5BFF498Rbvosugk8OO62wQ780DTvTeA5AlEtxV
 TEjTtd7QqDhWRELzv4WtU9ojrOnp3bzEu36Ok7ANEGAW40WdAL//eWQiaJF423Az
 zcD3w/t9ZE2mIX9h7YcVnMpmDvGpyQorG4mFYPfZgXLVxgrY2phLwiZsOk3B6PY8
 cszL4mJFnk6DKB9/31nWgPpWl+V1/E48JODwU9Fz1d3ov+XvNC4SBp0hM6cfG25c
 insZevsAfMQ+k43Rw+iE62Sz9JTfJZpVekyMmIG5fqCZlzG4UXhB6On5r6TGvWc0
 cnbZ+ELmsZY54DyAloOAKvBUuVY/t8QYaFo3y69v0B5ZiVnY1I00r74FyGEo21Cv
 /uxKbUmQxW4T9rdgZtWtfsSKcuiGrRDLTcLJ5j19c6bqJyF3fao=
 =REsM
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Over the break a few defects were found, so this is a -rc style pull
  request of various small things that have been posted.

   - An attempt to shorten RCU grace period driven delays showed crashes
     during heavier testing, and has been entirely reverted

   - A missed merge/rebase error between the advise_mr and ib_device_ops
     series

   - Some small static analysis driven fixes from Julia and Aditya

   - Missed ability to create a XRC_INI in the devx verbs interop
     series"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  infiniband/qedr: Potential null ptr dereference of qp
  infiniband: bnxt_re: qplib: Check the return value of send_message
  IB/ipoib: drop useless LIST_HEAD
  IB/core: Add advise_mr to the list of known ops
  Revert "IB/mlx5: Fix long EEH recover time with NVMe offloads"
  IB/mlx5: Allow XRC INI usage via verbs in DEVX context
2019-01-05 18:20:51 -08:00
Linus Torvalds
a8a6b1186b fbdev changes for v4.21:
- fix fbcon to not cause crash on unregister_framebuffer()
   when there is more than one framebuffer (Noralf Trønnes)
 
 - improve support for small rotated displays (Peter Rosin)
 
 - fix probe failure handling in udlfb driver (Dan Carpenter)
 
 - add config option to center the bootup logo (Peter Rosin)
 
 - make FB_BACKLIGHT config option tristate (Rob Clark)
 
 - remove superfluous HAS_DMA dependency for goldfishfb driver
   (Geert Uytterhoeven)
 
 - misc fixes (Alexey Khoroshilov, YueHaibing, Colin Ian King,
   Lubomir Rintel)
 
 - misc cleanups (Yangtao Li, Wen Yang)
 
 also there is DRM's nouveau driver fix for wrong FB_BACKLIGHT
 config option usage (FB_BACKLIGHT is for internal fbdev
 subsystem use only)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJcL0mpAAoJEH4ztj+gR8ILCikP/iXITim75hV2VU3EIB2xQ6B8
 oRpksZ2NnkS+TKQD7RbbweytBUIPtC3awd7uck6MNoiROmkZVqEl9jXsM84yU9XL
 1t+CQHtLQbnN84RTSBtA5G75PViRK9k39y2uKagJeANlaMVK8dRxR+6QFwnxlWnx
 zWbP70GyTQba+d2uJIEyVuZBRzhNyjoK9KjwidMvVqthlmRQKTHuAkZnuVUbt9l1
 xhO8YxMj8zdc9DPsUGB4tsPwJ6q+qq4FihC7tamcJeWRW6sxBmYTWWnfYuYQrRN1
 izp5xnGoeGr+s9pfOxLno2IMFDxOlZpF7aZg22pB9joMciqvy58OyPzKckdgLveq
 VIjx8l+dffgq12z6adPkLYHxHp7U4D5EFQg5WRKcImHAPTtea3+vS2C2aZhadEgK
 0EcJrcIWO4cUijtH8aelur/I87iVrn81G34mSOvR45/RlKqcn569hlANPAGp8Gop
 R6WSq16xY67eb3oRLbeK5W46cNd36L/9UOJOvxAMlo/Or3zyrgQn9z4Zj0IKJjXZ
 ixR+AL4nKlhZDkNdK8cmUTLFyN9JsbOjjW3GKgw9hz/BST6Z+Rk8L8OxhyyAahVk
 9wuupyHdpHdhuWWzzOLrmRcpNE3l1w79j79dHfbqrzQn/Uql0P5u0Hyrc5f8Fy4W
 bslNoVbRMXtlktacxv4X
 =rd5j
 -----END PGP SIGNATURE-----

Merge tag 'fbdev-v4.21' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "This time the pull request is really small.

  The most notable changes are fixing fbcon to not cause crash on
  unregister_framebuffer() operation when there is more than one
  framebuffer, adding config option to center the bootup logo and making
  FB_BACKLIGHT config option tristate (which in turn uncovered incorrect
  FB_BACKLIGHT usage by DRM's nouveau driver).

  Summary:

   - fix fbcon to not cause crash on unregister_framebuffer() when there
     is more than one framebuffer (Noralf Trønnes)

   - improve support for small rotated displays (Peter Rosin)

   - fix probe failure handling in udlfb driver (Dan Carpenter)

   - add config option to center the bootup logo (Peter Rosin)

   - make FB_BACKLIGHT config option tristate (Rob Clark)

   - remove superfluous HAS_DMA dependency for goldfishfb driver (Geert
     Uytterhoeven)

   - misc fixes (Alexey Khoroshilov, YueHaibing, Colin Ian King, Lubomir
     Rintel)

   - misc cleanups (Yangtao Li, Wen Yang)

  also there is DRM's nouveau driver fix for wrong FB_BACKLIGHT config
  option usage (FB_BACKLIGHT is for internal fbdev subsystem use only)"

* tag 'fbdev-v4.21' of git://github.com/bzolnier/linux:
  drm/nouveau: fix incorrect FB_BACKLIGHT usage in Kconfig
  fbdev: fbcon: Fix unregister crash when more than one framebuffer
  fbdev: Remove depends on HAS_DMA in case of platform dependency
  pxa168fb: trivial typo fix
  fbdev: fsl-diu: remove redundant null check on cmap
  fbdev: omap2: omapfb: convert to DEFINE_SHOW_ATTRIBUTE
  fbdev: uvesafb: fix spelling mistake "memoery" -> "memory"
  fbdev: fbmem: add config option to center the bootup logo
  fbdev: fbmem: make fb_show_logo_line return the end instead of the height
  video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
  fbdev: fbmem: behave better with small rotated displays and many CPUs
  video: clps711x-fb: release disp device node in probe()
  fbdev: make FB_BACKLIGHT a tristate
  udlfb: fix some inconsistent NULL checking
2019-01-05 18:15:37 -08:00
Linus Torvalds
7671c14e6a Merge branch 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "I2C has only driver updates for you this time.

  Mostly new IDs/DT compatibles, also SPDX conversions, small cleanups.
  STM32F7 got FastMode+ and PM support, Axxia some reliabilty
  improvements"

* 'i2c/for-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (26 commits)
  i2c: Add Actions Semiconductor Owl family S700 I2C support
  dt-bindings: i2c: Add S700 support for Actions Semi Soc's
  i2c: ismt: Add support for Intel Cedar Fork
  i2c: tegra: Switch to SPDX identifier
  i2c: tegra: Add missing kerneldoc for some fields
  i2c: tegra: Cleanup kerneldoc comments
  i2c: axxia: support sequence command mode
  dt-bindings: i2c: rcar: Add r8a774c0 support
  dt-bindings: i2c: sh_mobile: Add r8a774c0 support
  i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E)
  i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier.
  i2c: powermac: Use of_node_name_eq for node name comparisons
  i2c-axxia: check for error conditions first
  i2c-axxia: dedicated function to set client addr
  dt-bindings: i2c: Use correct vendor prefix for Atmel
  i2c: tegra: replace spin_lock_irqsave with spin_lock in ISR
  eeprom: at24: add support for 24c2048
  dt-bindings: eeprom: at24: add "atmel,24c2048" compatible string
  i2c: i2c-stm32f7: add PM Runtime support
  i2c: sh_mobile: add support for r8a77990 (R-Car E3)
  ...
2019-01-05 18:13:35 -08:00
Linus Torvalds
926b02d3eb pci-v4.21-changes
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlwtMCIUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vwQUQ/+P5/VDpo4abjudGO2c7FU1bJOwvfN
 cfV5dvDCw0kpx0Em5SmnpAD7Punllxxvb/04K75lqarGyx/Txqaw+lbIF+qSj6my
 GsQ16Iy8T48x5hr+Pf6vTh1eE+NaAVZfOPDOt7CyTNAgwfzHeVNyfNvz7pfKTIIJ
 Mk/jRE4kkeWo60jsY5p3sFo3OVOxBOsRdN+2sruaQuWFXrKHLyNDR+7Z9ZPxubFk
 cCO/TYPhNXmmKhCAR4V/rGiqz9OL2wyFixGhGhmD3tnC9nAb/wTMzjARsyBopBPi
 b/KkR2eLFEyXN0HJrwqxiURo4J3nveAYEuNXH5KjRBQZnoBCGSCIlqFhlrp9vdBk
 B4KIdT8h/M6LsVGeVSEIxIEXCp67YE31kxraFrk4Vsggdh2TFQ0llh1sajj8IFJB
 XekutedAOlTSOaM1/jvVPUJYg04X90bp3uXn3IU45XlQ8nBOG3immFVITRLkvd3w
 ywH+SEdeZAhWl3RGy8SHhqdeCJ7nNQbcRaRJ5CoWJBDNJTBGF1X+zJD2Swi6H9vA
 nWGNRlb3CPPIMPF127nADnOE7Cj2FlpAEIEu52HpcpIrhEdrGvLkGeQfgdWBjbyU
 aHwC04bLWnvsA9SEFVnuMIBaFQmJ1RuaWAHdtscyyO2uoeCtN8Aa+BX6jXFbVZQN
 9eFzpiv0kUiXlAQ=
 =g1ia
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - Remove unused lists from ASPM pcie_link_state (Frederick Lawler)

 - Fix Broadcom CNB20LE host bridge unintended sign extension (Colin Ian
   King)

 - Expand Kconfig "PF" acronyms (Randy Dunlap)

 - Update MAINTAINERS for arch/x86/kernel/early-quirks.c (Bjorn Helgaas)

 - Add missing include to drivers/pci.h (Alexandru Gagniuc)

 - Override Synopsys USB 3.x HAPS device class so dwc3-haps can claim it
   instead of xhci (Thinh Nguyen)

 - Clean up P2PDMA documentation (Randy Dunlap)

 - Allow runtime PM even if driver doesn't supply callbacks (Jarkko
   Nikula)

 - Remove status check after submitting Switchtec MRPC Firmware Download
   commands to avoid Completion Timeouts (Kelvin Cao)

 - Set Switchtec coherent DMA mask to allow 64-bit DMA (Boris Glimcher)

 - Fix Switchtec SWITCHTEC_IOCTL_EVENT_IDX_ALL flag overwrite issue
   (Joey Zhang)

 - Enable write combining for Switchtec MRPC Input buffers (Kelvin Cao)

 - Add Switchtec MRPC DMA mode support (Wesley Sheng)

 - Skip VF scanning on powerpc, which does this in firmware (Sebastian
   Ott)

 - Add Amlogic Meson PCIe controller driver and DT bindings (Yue Wang)

 - Constify histb dw_pcie_host_ops structure (Julia Lawall)

 - Support multiple power domains for imx6 (Leonard Crestez)

 - Constify layerscape driver data (Stefan Agner)

 - Update imx6 Kconfig to allow imx6 PCIe in imx7 kernel (Trent Piepho)

 - Support armada8k GPIO reset (Baruch Siach)

 - Support suspend/resume support on imx6 (Leonard Crestez)

 - Don't hard-code DesignWare DBI/ATU offst (Stephen Warren)

 - Skip i.MX6 PHY setup on i.MX7D (Andrey Smirnov)

 - Remove Jianguo Sun from HiSilicon STB maintainers (Lorenzo Pieralisi)

 - Mask DesignWare interrupts instead of disabling them to avoid lost
   interrupts (Marc Zyngier)

 - Add locking when acking DesignWare interrupts (Marc Zyngier)

 - Ack DesignWare interrupts in the proper callbacks (Marc Zyngier)

 - Use devm resource parser in mediatek (Honghui Zhang)

 - Remove unused mediatek "num-lanes" DT property (Honghui Zhang)

 - Add UniPhier PCIe controller driver and DT bindings (Kunihiko
   Hayashi)

 - Enable MSI for imx6 downstream components (Richard Zhu)

* tag 'pci-v4.21-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (40 commits)
  PCI: imx: Enable MSI from downstream components
  s390/pci: skip VF scanning
  PCI/IOV: Add flag so platforms can skip VF scanning
  PCI/IOV: Factor out sriov_add_vfs()
  PCI: uniphier: Add UniPhier PCIe host controller support
  dt-bindings: PCI: Add UniPhier PCIe host controller description
  PCI: amlogic: Add the Amlogic Meson PCIe controller driver
  dt-bindings: PCI: meson: add DT bindings for Amlogic Meson PCIe controller
  arm64: dts: mt7622: Remove un-used property for PCIe
  arm: dts: mt7623: Remove un-used property for PCIe
  dt-bindings: PCI: MediaTek: Remove un-used property
  PCI: mediatek: Remove un-used variant in struct mtk_pcie_port
  MAINTAINERS: Remove Jianguo Sun from HiSilicon STB DWC entry
  PCI: dwc: Don't hard-code DBI/ATU offset
  PCI: imx: Add imx6sx suspend/resume support
  PCI: armada8k: Add support for gpio controlled reset signal
  PCI: dwc: Adjust Kconfig to allow IMX6 PCIe host on IMX7
  PCI: dwc: layerscape: Constify driver data
  PCI: imx: Add multi-pd support
  PCI: Override Synopsys USB 3.x HAPS device class
  ...
2019-01-05 17:57:34 -08:00
Linus Torvalds
cf26057a94 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:

 - high-resolution scrolling support that gracefully handles differences
   between MS and Logitech implementations in HW, from Peter Hutterer
   and Harry Cutts

 - MSI IRQ support for intel-ish driver, from Song Hongyan

 - support for new hardware (Cougar 700K, Odys Winbook 13, ASUS FX503VD,
   ASUS T101HA) from Daniel M. Lambea, Hans de Goede and Aleix Roca
   Nonell

 - other small assorted fixups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (22 commits)
  HID: i2c-hid: Add Odys Winbook 13 to descriptor override
  HID: lenovo: Add checks to fix of_led_classdev_register
  HID: intel-ish-hid: add MSI interrupt support
  HID: debug: Change to use DEFINE_SHOW_ATTRIBUTE macro
  HID: doc: fix wrong data structure reference for UHID_OUTPUT
  HID: intel-ish-hid: fixes incorrect error handling
  HID: asus: Add support for the ASUS T101HA keyboard dock
  HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice
  HID: logitech: Enable high-resolution scrolling on Logitech mice
  HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"
  HID: logitech-hidpp: fix typo, hiddpp to hidpp
  HID: input: use the Resolution Multiplier for high-resolution scrolling
  HID: core: process the Resolution Multiplier
  HID: core: store the collections as a basic tree
  Input: add `REL_WHEEL_HI_RES` and `REL_HWHEEL_HI_RES`
  HID: input: support Microsoft wireless radio control hotkey
  HID: use macros in IS_INPUT_APPLICATION
  HID: asus: Add support for the ASUS FX503VD laptop
  HID: asus: Add event handler to catch unmapped Asus Vendor UsagePage codes
  HID: cougar: Add support for Cougar 700K Gaming Keyboard
  ...
2019-01-05 17:53:40 -08:00
Linus Torvalds
1686cc1a31 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatch update from Jiri Kosina:
 "Return value checking fixup in livepatching samples, from Nicholas Mc
  Guire"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: check kzalloc return values
2019-01-05 17:51:36 -08:00
Masahiro Yamada
d86271af64 kconfig: rename generated .*conf-cfg to *conf-cfg
Remove the dot-prefixing since it is just a matter of the
.gitignore file.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-01-06 10:47:09 +09:00
Masahiro Yamada
f7de64b731 kbuild: remove unnecessary stubs for archheader and archscripts
Make simply skips a missing rule when it is marked as .PHONY.
Remove the dummy targets.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-01-06 10:47:08 +09:00
Masahiro Yamada
ba97df4558 kbuild: use assignment instead of define ... endef for filechk_* rules
You do not have to use define ... endef for filechk_* rules.

For simple cases, the use of assignment looks cleaner, IMHO.

I updated the usage for scripts/Kbuild.include in case somebody
misunderstands the 'define ... endif' is the requirement.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2019-01-06 10:22:35 +09:00
Masahiro Yamada
d6e4b3e326 arch: remove redundant UAPI generic-y defines
Now that Kbuild automatically creates asm-generic wrappers for missing
mandatory headers, it is redundant to list the same headers in
generic-y and mandatory-y.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
2019-01-06 10:22:15 +09:00