Commit Graph

21606 Commits

Author SHA1 Message Date
Linus Torvalds
251a152429 SCSI fixes on 20210804
Seven fixes, five in drivers.  The two core changes are a trivial
 warning removal in scsi_scan.c and a change to rescan for capacity
 when a device makes a user induced (via a write to the state variable)
 offline->running transition to fix issues with device mapper.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Seven fixes, five in drivers.

  The two core changes are a trivial warning removal in scsi_scan.c and
  a change to rescan for capacity when a device makes a user induced
  (via a write to the state variable) offline->running transition to fix
  issues with device mapper"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: core: Fix capacity set to zero after offlinining device
  scsi: sr: Return correct event when media event code is 3
  scsi: ibmvfc: Fix command state accounting and stale response detection
  scsi: core: Avoid printing an error if target_alloc() returns -ENXIO
  scsi: scsi_dh_rdac: Avoid crash during rdac_bus_attach()
  scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
  scsi: pm80xx: Fix TMF task completion race condition
2021-08-04 12:41:30 -07:00
lijinlin
f0f82e2476 scsi: core: Fix capacity set to zero after offlinining device
After adding physical volumes to a volume group through vgextend, the
kernel will rescan the partitions. This in turn will cause the device
capacity to be queried.

If the device status is set to offline through sysfs at this time, READ
CAPACITY command will return a result which the host byte is
DID_NO_CONNECT, and the capacity of the device will be set to zero in
read_capacity_error(). After setting device status back to running, the
capacity of the device will remain stuck at zero.

Fix this issue by rescanning device when the device state changes to
SDEV_RUNNING.

Link: https://lore.kernel.org/r/20210727034455.1494960-1-lijinlin3@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: lijinlin <lijinlin3@huawei.com>
Signed-off-by: Wu Bo <wubo40@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-29 21:58:35 -04:00
Li Manyi
5c04243a56 scsi: sr: Return correct event when media event code is 3
Media event code 3 is defined in the MMC-6 spec as follows:

  "MediaRemoval: The media has been removed from the specified slot, and
   the Drive is unable to access the media without user intervention. This
   applies to media changers only."

This indicated that treating the condition as an EJECT_REQUEST was
appropriate. However, doing so had the unfortunate side-effect of causing
the drive tray to be physically ejected on resume. Instead treat the event
as a MEDIA_CHANGE request.

Fixes: 7dd753ca59 ("scsi: sr: Return appropriate error code when disk is ejected")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=213759
Link: https://lore.kernel.org/r/20210726114913.6760-1-limanyi@uniontech.com
Signed-off-by: Li Manyi <limanyi@uniontech.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-29 21:58:35 -04:00
Tyrel Datwyler
a264cf5e81 scsi: ibmvfc: Fix command state accounting and stale response detection
Prior to commit 1f4a4a1950 ("scsi: ibmvfc: Complete commands outside the
host/queue lock") responses to commands were completed sequentially with
the host lock held such that a command had a basic binary state of active
or free. It was therefore a simple affair of ensuring the assocaiated
ibmvfc_event to a VIOS response was valid by testing that it was not
already free. The lock relexation work to complete commands outside the
lock inadverdently made it a trinary command state such that a command is
either in flight, received and being completed, or completed and now
free. This breaks the stale command detection logic as a command may be
still marked active and been placed on the delayed completion list when a
second stale response for the same command arrives. This can lead to double
completions and list corruption. This issue was exposed by a recent VIOS
regression were a missing memory barrier could occasionally result in the
ibmvfc client receiving a duplicate response for the same command.

Fix the issue by introducing the atomic ibmvfc_event.active to track the
trinary state of a command. The state is explicitly set to 1 when a command
is successfully sent. The CRQ response handlers use
atomic_dec_if_positive() to test for stale responses and correctly
transition to the completion state when a active command is received.
Finally, atomic_dec_and_test() is used to sanity check transistions when
commands are freed as a result of a completion, or moved to the purge list
as a result of error handling or adapter reset.

Link: https://lore.kernel.org/r/20210716205220.1101150-1-tyreld@linux.ibm.com
Fixes: 1f4a4a1950 ("scsi: ibmvfc: Complete commands outside the host/queue lock")
Cc: stable@vger.kernel.org
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-29 21:58:35 -04:00
Sreekanth Reddy
70edd2e6f6 scsi: core: Avoid printing an error if target_alloc() returns -ENXIO
Avoid printing a 'target allocation failed' error if the driver
target_alloc() callback function returns -ENXIO. This return value
indicates that the corresponding H:C:T:L entry is empty.

Removing this error reduces the scan time if the user issues SCAN_WILD_CARD
scan operation through sysfs parameter on a host with a lot of empty
H:C:T:L entries.

Avoiding the printk on -ENXIO matches the behavior of the other callback
functions during scanning.

Link: https://lore.kernel.org/r/20210726115402.1936-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-29 21:58:35 -04:00
Ye Bin
bc546c0c9a scsi: scsi_dh_rdac: Avoid crash during rdac_bus_attach()
The following BUG_ON() was observed during RDAC scan:

[595952.944297] kernel BUG at drivers/scsi/device_handler/scsi_dh_rdac.c:427!
[595952.951143] Internal error: Oops - BUG: 0 [#1] SMP
......
[595953.251065] Call trace:
[595953.259054]  check_ownership+0xb0/0x118
[595953.269794]  rdac_bus_attach+0x1f0/0x4b0
[595953.273787]  scsi_dh_handler_attach+0x3c/0xe8
[595953.278211]  scsi_dh_add_device+0xc4/0xe8
[595953.282291]  scsi_sysfs_add_sdev+0x8c/0x2a8
[595953.286544]  scsi_probe_and_add_lun+0x9fc/0xd00
[595953.291142]  __scsi_scan_target+0x598/0x630
[595953.295395]  scsi_scan_target+0x120/0x130
[595953.299481]  fc_user_scan+0x1a0/0x1c0 [scsi_transport_fc]
[595953.304944]  store_scan+0xb0/0x108
[595953.308420]  dev_attr_store+0x44/0x60
[595953.312160]  sysfs_kf_write+0x58/0x80
[595953.315893]  kernfs_fop_write+0xe8/0x1f0
[595953.319888]  __vfs_write+0x60/0x190
[595953.323448]  vfs_write+0xac/0x1c0
[595953.326836]  ksys_write+0x74/0xf0
[595953.330221]  __arm64_sys_write+0x24/0x30

Code is in check_ownership:

	list_for_each_entry_rcu(tmp, &h->ctlr->dh_list, node) {
		/* h->sdev should always be valid */
		BUG_ON(!tmp->sdev);
		tmp->sdev->access_state = access_state;
	}

	rdac_bus_attach
		initialize_controller
			list_add_rcu(&h->node, &h->ctlr->dh_list);
			h->sdev = sdev;

	rdac_bus_detach
		list_del_rcu(&h->node);
		h->sdev = NULL;

Fix the race between rdac_bus_attach() and rdac_bus_detach() where h->sdev
is NULL when processing the RDAC attach.

Link: https://lore.kernel.org/r/20210113063103.2698953-1-yebin10@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-29 21:58:35 -04:00
Gustavo A. R. Silva
cb163627e6 scsi: fas216: Fix fall-through warning for Clang
Fix the following fallthrough warning (on ARM):

drivers/scsi/arm/fas216.c:1379:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           default:
           ^
   drivers/scsi/arm/fas216.c:1379:2: note: insert 'break;' to avoid fall-through
           default:
           ^
           break;

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202107260355.bF00i5bi-lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-29 12:51:16 -05:00
Gustavo A. R. Silva
eb4f520ca6 scsi: acornscsi: Fix fall-through warning for clang
Fix the following fallthrough warning (on ARM):

drivers/scsi/arm/acornscsi.c:2651:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case res_success:
           ^
   drivers/scsi/arm/acornscsi.c:2651:2: note: insert '__attribute__((fallthrough));' to silence this warning
           case res_success:
           ^
           __attribute__((fallthrough));
   drivers/scsi/arm/acornscsi.c:2651:2: note: insert 'break;' to avoid fall-through
           case res_success:
           ^
           break;
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202107260355.bF00i5bi-lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-29 12:51:16 -05:00
Harshvardhan Jha
77541f78ea scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
The list_for_each_entry() iterator, "adapter" in this code, can never be
NULL.  If we exit the loop without finding the correct adapter then
"adapter" points invalid memory that is an offset from the list head.  This
will eventually lead to memory corruption and presumably a kernel crash.

Link: https://lore.kernel.org/r/20210708074642.23599-1-harshvardhan.jha@oracle.com
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Harshvardhan Jha <harshvardhan.jha@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-28 23:29:09 -04:00
Igor Pylypiv
d712d3fb48 scsi: pm80xx: Fix TMF task completion race condition
The TMF timeout timer may trigger at the same time when the response from a
controller is being handled. When this happens the SAS task may get freed
before the response processing is finished.

Fix this by calling complete() only when SAS_TASK_STATE_DONE is not set.

A similar race condition was fixed in commit b90cd6f2b9 ("scsi: libsas:
fix a race condition when smp task timeout")

Link: https://lore.kernel.org/r/20210707185945.35559-1-ipylypiv@google.com
Reviewed-by: Vishakha Channapattan <vishakhavc@google.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-28 23:29:09 -04:00
Linus Torvalds
7ffca2bb9d SCSI fixes on 20210724
Four fixes, all in drivers, all of which can lead to user visible
 problems in certain situations.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four fixes, all in drivers, all of which can lead to user visible
  problems in certain situations"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: target: Fix NULL dereference on XCOPY completion
  scsi: mpt3sas: Transition IOC to Ready state during shutdown
  scsi: target: Fix protect handling in WRITE SAME(32)
  scsi: iscsi: Fix iface sysfs attr detection
2021-07-24 13:08:31 -07:00
Sreekanth Reddy
fae21608c3 scsi: mpt3sas: Transition IOC to Ready state during shutdown
The IOC firmware assumes that the host driver is still alive after shutdown
and continues to post events to host memory (due to faulty expander phy
links, etc). This leads to 0x2666 (a bus fault occurred during a host-IOC
memory access).

Perform an IOC soft reset as part of shutdown to disable event posting.

Link: https://lore.kernel.org/r/20210705145951.32258-1-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-19 21:57:15 -04:00
Mike Christie
e746f3451e scsi: iscsi: Fix iface sysfs attr detection
A ISCSI_IFACE_PARAM can have the same value as a ISCSI_NET_PARAM so when
iscsi_iface_attr_is_visible tries to figure out the type by just checking
the value, we can collide and return the wrong type. When we call into the
driver we might not match and return that we don't want attr visible in
sysfs. The patch fixes this by setting the type when we figure out what the
param is.

Link: https://lore.kernel.org/r/20210701002559.89533-1-michael.christie@oracle.com
Fixes: 3e0f65b34c ("[SCSI] iscsi_transport: Additional parameters for network settings")
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-18 21:07:48 -04:00
Linus Torvalds
5d766d55d1 SCSI fixes on 20210717
1 core fix for an oops which can occur if the error handling thread
 fails to start for some reason and the driver is removed.  The other
 fixes are all minor ones in drivers.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "One core fix for an oops which can occur if the error handling thread
  fails to start for some reason and the driver is removed.

  The other fixes are all minor ones in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Add missing host_lock in ufshcd_vops_setup_xfer_req()
  scsi: mpi3mr: Fix W=1 compilation warnings
  scsi: pm8001: Clean up kernel-doc and comments
  scsi: zfcp: Report port fc_security as unknown early during remote cable pull
  scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
  scsi: fas216: Fix a build error
  scsi: core: Fix the documentation of the scsi_execute() time parameter
2021-07-17 13:09:23 -07:00
Linus Torvalds
e9338abf0e fallthrough fixes for Clang for 5.14-rc2
Hi Linus,
 
 Please, pull the following patches that fix many fall-through
 warnings when building with Clang and -Wimplicit-fallthrough.
 
 This pull-request also contains the patch for Makefile that enables
 -Wimplicit-fallthrough for Clang, globally.
 
 It's also important to notice that since we have adopted the use of
 the pseudo-keyword macro fallthrough; we also want to avoid having
 more /* fall through */ comments being introduced. Notice that contrary
 to GCC, Clang doesn't recognize any comments as implicit fall-through
 markings when the -Wimplicit-fallthrough option is enabled. So, in
 order to avoid having more comments being introduced, we have to use
 the option -Wimplicit-fallthrough=5 for GCC, which similar to Clang,
 will cause a warning in case a code comment is intended to be used
 as a fall-through marking. The patch for Makefile also enforces this.
 
 We had almost 4,000 of these issues for Clang in the beginning,
 and there might be a couple more out there when building some
 architectures with certain configurations. However, with the
 recent fixes I think we are in good shape and it is now possible
 to enable -Wimplicit-fallthrough for Clang. :)
 
 Thanks!
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Merge tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull fallthrough fixes from Gustavo Silva:
 "This fixes many fall-through warnings when building with Clang and
  -Wimplicit-fallthrough, and also enables -Wimplicit-fallthrough for
  Clang, globally.

  It's also important to notice that since we have adopted the use of
  the pseudo-keyword macro fallthrough, we also want to avoid having
  more /* fall through */ comments being introduced. Contrary to GCC,
  Clang doesn't recognize any comments as implicit fall-through markings
  when the -Wimplicit-fallthrough option is enabled.

  So, in order to avoid having more comments being introduced, we use
  the option -Wimplicit-fallthrough=5 for GCC, which similar to Clang,
  will cause a warning in case a code comment is intended to be used as
  a fall-through marking. The patch for Makefile also enforces this.

  We had almost 4,000 of these issues for Clang in the beginning, and
  there might be a couple more out there when building some
  architectures with certain configurations. However, with the recent
  fixes I think we are in good shape and it is now possible to enable
  the warning for Clang"

* tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits)
  Makefile: Enable -Wimplicit-fallthrough for Clang
  powerpc/smp: Fix fall-through warning for Clang
  dmaengine: mpc512x: Fix fall-through warning for Clang
  usb: gadget: fsl_qe_udc: Fix fall-through warning for Clang
  powerpc/powernv: Fix fall-through warning for Clang
  MIPS: Fix unreachable code issue
  MIPS: Fix fall-through warnings for Clang
  ASoC: Mediatek: MT8183: Fix fall-through warning for Clang
  power: supply: Fix fall-through warnings for Clang
  dmaengine: ti: k3-udma: Fix fall-through warning for Clang
  s390: Fix fall-through warnings for Clang
  dmaengine: ipu: Fix fall-through warning for Clang
  iommu/arm-smmu-v3: Fix fall-through warning for Clang
  mmc: jz4740: Fix fall-through warning for Clang
  PCI: Fix fall-through warning for Clang
  scsi: libsas: Fix fall-through warning for Clang
  video: fbdev: Fix fall-through warning for Clang
  math-emu: Fix fall-through warning
  cpufreq: Fix fall-through warning for Clang
  drm/msm: Fix fall-through warning in msm_gem_new_impl()
  ...
2021-07-15 13:57:31 -07:00
Gustavo A. R. Silva
223fa873fa scsi: libsas: Fix fall-through warning for Clang
Fix the following fallthrough warning (arm64-randconfig with Clang):

drivers/scsi/libsas/sas_discover.c:467:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/60edca25.k00ut905IFBjPyt5%25lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-13 13:58:56 -05:00
Jaegeuk Kim
053c16ac89 scsi: ufs: core: Add missing host_lock in ufshcd_vops_setup_xfer_req()
This patch adds a host_lock which existed before on
ufshcd_vops_setup_xfer_req().

Link: https://lore.kernel.org/r/20210701005117.3846179-1-jaegeuk@kernel.org
Fixes: a45f937110 ("scsi: ufs: Optimize host lock on transfer requests send/compl paths")
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 22:02:06 -04:00
Sreekanth Reddy
aa0dc6a733 scsi: mpi3mr: Fix W=1 compilation warnings
Fix for the following W=1 compilation warning:

  'strncpy' output may be truncated copying 16 bytes from a string of
  length 64

Link: https://lore.kernel.org/r/20210707081756.20922-1-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 21:56:50 -04:00
Randy Dunlap
bb6beabf2f scsi: pm8001: Clean up kernel-doc and comments
Fix kernel-doc warnings then test again, wash, rinse, find more, then
repeat more/again.

Also fix spellos, some grammar, and some punctuation.

../drivers/scsi/pm8001/pm8001_ctl.c:557: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 ** pm8001_ctl_fatal_log_show - fatal error logging
../drivers/scsi/pm8001/pm8001_ctl.c:577: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 ** non_fatal_log_show - non fatal error logging
../drivers/scsi/pm8001/pm8001_ctl.c:622: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 ** pm8001_ctl_gsm_log_show - gsm dump collection

Link: https://lore.kernel.org/r/20210708165723.8594-1-rdunlap@infradead.org
Cc: Jack Wang <jinpu.wang@cloud.ionos.com>
Cc: linux-scsi@vger.kernel.org
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 21:54:07 -04:00
Tyrel Datwyler
93aa71ad73 scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
Commit 66a834d092 ("scsi: core: Fix error handling of scsi_host_alloc()")
changed the allocation logic to call put_device() to perform host cleanup
with the assumption that IDA removal and stopping the kthread would
properly be performed in scsi_host_dev_release(). However, in the unlikely
case that the error handler thread fails to spawn, shost->ehandler is set
to ERR_PTR(-ENOMEM).

The error handler cleanup code in scsi_host_dev_release() will call
kthread_stop() if shost->ehandler != NULL which will always be the case
whether the kthread was successfully spawned or not. In the case that it
failed to spawn this has the nasty side effect of trying to dereference an
invalid pointer when kthread_stop() is called. The following splat provides
an example of this behavior in the wild:

scsi host11: error handler thread failed to spawn, error = -4
Kernel attempted to read user page (10c) - exploit attempt? (uid: 0)
BUG: Kernel NULL pointer dereference on read at 0x0000010c
Faulting instruction address: 0xc00000000818e9a8
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
Modules linked in: ibmvscsi(+) scsi_transport_srp dm_multipath dm_mirror dm_region
 hash dm_log dm_mod fuse overlay squashfs loop
CPU: 12 PID: 274 Comm: systemd-udevd Not tainted 5.13.0-rc7 #1
NIP:  c00000000818e9a8 LR: c0000000089846e8 CTR: 0000000000007ee8
REGS: c000000037d12ea0 TRAP: 0300   Not tainted  (5.13.0-rc7)
MSR:  800000000280b033 &lt;SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE&gt;  CR: 28228228
XER: 20040001
CFAR: c0000000089846e4 DAR: 000000000000010c DSISR: 40000000 IRQMASK: 0
GPR00: c0000000089846e8 c000000037d13140 c000000009cc1100 fffffffffffffffc
GPR04: 0000000000000001 0000000000000000 0000000000000000 c000000037dc0000
GPR08: 0000000000000000 c000000037dc0000 0000000000000001 00000000fffff7ff
GPR12: 0000000000008000 c00000000a049000 c000000037d13d00 000000011134d5a0
GPR16: 0000000000001740 c0080000190d0000 c0080000190d1740 c000000009129288
GPR20: c000000037d13bc0 0000000000000001 c000000037d13bc0 c0080000190b7898
GPR24: c0080000190b7708 0000000000000000 c000000033bb2c48 0000000000000000
GPR28: c000000046b28280 0000000000000000 000000000000010c fffffffffffffffc
NIP [c00000000818e9a8] kthread_stop+0x38/0x230
LR [c0000000089846e8] scsi_host_dev_release+0x98/0x160
Call Trace:
[c000000033bb2c48] 0xc000000033bb2c48 (unreliable)
[c0000000089846e8] scsi_host_dev_release+0x98/0x160
[c00000000891e960] device_release+0x60/0x100
[c0000000087e55c4] kobject_release+0x84/0x210
[c00000000891ec78] put_device+0x28/0x40
[c000000008984ea4] scsi_host_alloc+0x314/0x430
[c0080000190b38bc] ibmvscsi_probe+0x54/0xad0 [ibmvscsi]
[c000000008110104] vio_bus_probe+0xa4/0x4b0
[c00000000892a860] really_probe+0x140/0x680
[c00000000892aefc] driver_probe_device+0x15c/0x200
[c00000000892b63c] device_driver_attach+0xcc/0xe0
[c00000000892b740] __driver_attach+0xf0/0x200
[c000000008926f28] bus_for_each_dev+0xa8/0x130
[c000000008929ce4] driver_attach+0x34/0x50
[c000000008928fc0] bus_add_driver+0x1b0/0x300
[c00000000892c798] driver_register+0x98/0x1a0
[c00000000810eb60] __vio_register_driver+0x80/0xe0
[c0080000190b4a30] ibmvscsi_module_init+0x9c/0xdc [ibmvscsi]
[c0000000080121d0] do_one_initcall+0x60/0x2d0
[c000000008261abc] do_init_module+0x7c/0x320
[c000000008265700] load_module+0x2350/0x25b0
[c000000008265cb4] __do_sys_finit_module+0xd4/0x160
[c000000008031110] system_call_exception+0x150/0x2d0
[c00000000800d35c] system_call_common+0xec/0x278

Fix this be nulling shost->ehandler when the kthread fails to spawn.

Link: https://lore.kernel.org/r/20210701195659.3185475-1-tyreld@linux.ibm.com
Fixes: 66a834d092 ("scsi: core: Fix error handling of scsi_host_alloc()")
Cc: stable@vger.kernel.org
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 21:46:24 -04:00
Bart Van Assche
fbf1a58701 scsi: fas216: Fix a build error
Use SAM_STAT_GOOD instead of GOOD since GOOD has been removed.

Link: https://lore.kernel.org/r/20210711033623.11267-1-bvanassche@acm.org
Fixes: 3d45cefc8e ("scsi: core: Drop obsolete Linux-specific SCSI status codes")
Fixes: df13031476 ("scsi: fas216: Use get_status_byte() to avoid using Linux-specific status codes")
Cc: Hannes Reinecke <hare@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 21:41:31 -04:00
Bart Van Assche
422969bbb5 scsi: core: Fix the documentation of the scsi_execute() time parameter
The unit of the scsi_execute() timeout parameter is 1/HZ seconds instead of
one second, just like the timeouts used in the block layer. Fix the
documentation header above the definition of the scsi_execute() macro.

Link: https://lore.kernel.org/r/20210709202638.9480-3-bvanassche@acm.org
Fixes: "[SCSI] use scatter lists for all block pc requests and simplify hw handlers" # v2.6.16.28
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-12 21:40:21 -04:00
Christoph Hellwig
7fef2edf7c sd: don't mess with SD_MINORS for CONFIG_DEBUG_BLOCK_EXT_DEVT
No need to give up the original sd minor even with this option,
and if we did we'd also need to fix the number of minors for
this configuration to actually work.

Fixes: 7c3f828b52 ("block: refactor device number setup in __device_add_disk")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-12 12:25:37 -07:00
Linus Torvalds
8b9cc17a46 SCSI misc on 20210711
This is a set of minor fixes and clean ups in the core and various
 drivers.  The only core change in behaviour is the I/O retry for
 spinup notify, but that shouldn't impact anything other than the
 failing case.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "This is a set of minor fixes and clean ups in the core and various
  drivers.

  The only core change in behaviour is the I/O retry for spinup notify,
  but that shouldn't impact anything other than the failing case"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits)
  scsi: virtio_scsi: Add validation for residual bytes from response
  scsi: ipr: System crashes when seeing type 20 error
  scsi: core: Retry I/O for Notify (Enable Spinup) Required error
  scsi: mpi3mr: Fix warnings reported by smatch
  scsi: qedf: Add check to synchronize abort and flush
  scsi: MAINTAINERS: Add mpi3mr driver maintainers
  scsi: libfc: Fix array index out of bound exception
  scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro
  scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro
  scsi: qedf: Use DEVICE_ATTR_RO() macro
  scsi: qedi: Use DEVICE_ATTR_RO() macro
  scsi: message: mptfc: Switch from pci_ to dma_ API
  scsi: be2iscsi: Fix some missing space in some messages
  scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe()
  scsi: ufs: Fix build warning without CONFIG_PM
  scsi: bnx2fc: Remove meaningless bnx2fc_abts_cleanup() return value assignment
  scsi: qla2xxx: Add heartbeat check
  scsi: virtio_scsi: Do not overwrite SCSI status
  scsi: libsas: Add LUN number check in .slave_alloc callback
  scsi: core: Inline scsi_mq_alloc_queue()
  ...
2021-07-11 10:59:53 -07:00
Linus Torvalds
a022f7d575 block-5.14-2021-07-08
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Merge tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block

Pull more block updates from Jens Axboe:
 "A combination of changes that ended up depending on both the driver
  and core branch (and/or the IDE removal), and a few late arriving
  fixes. In detail:

   - Fix io ticks wrap-around issue (Chunguang)

   - nvme-tcp sock locking fix (Maurizio)

   - s390-dasd fixes (Kees, Christoph)

   - blk_execute_rq polling support (Keith)

   - blk-cgroup RCU iteration fix (Yu)

   - nbd backend ID addition (Prasanna)

   - Partition deletion fix (Yufen)

   - Use blk_mq_alloc_disk for mmc, mtip32xx, ubd (Christoph)

   - Removal of now dead block request types due to IDE removal
     (Christoph)

   - Loop probing and control device cleanups (Christoph)

   - Device uevent fix (Christoph)

   - Misc cleanups/fixes (Tetsuo, Christoph)"

* tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block: (34 commits)
  blk-cgroup: prevent rcu_sched detected stalls warnings while iterating blkgs
  block: fix the problem of io_ticks becoming smaller
  nvme-tcp: can't set sk_user_data without write_lock
  loop: remove unused variable in loop_set_status()
  block: remove the bdgrab in blk_drop_partitions
  block: grab a device refcount in disk_uevent
  s390/dasd: Avoid field over-reading memcpy()
  dasd: unexport dasd_set_target_state
  block: check disk exist before trying to add partition
  ubd: remove dead code in ubd_setup_common
  nvme: use return value from blk_execute_rq()
  block: return errors from blk_execute_rq()
  nvme: use blk_execute_rq() for passthrough commands
  block: support polling through blk_execute_rq
  block: remove REQ_OP_SCSI_{IN,OUT}
  block: mark blk_mq_init_queue_data static
  loop: rewrite loop_exit using idr_for_each_entry
  loop: split loop_lookup
  loop: don't allow deleting an unspecified loop device
  loop: move loop_ctl_mutex locking into loop_add
  ...
2021-07-09 12:05:33 -07:00
Linus Torvalds
383df634f1 More fallthrough fixes for Clang for 5.14-rc1
Hi Linus,
 
 Please, pull the following patches that fix many fall-through warnings
 when building with Clang 12.0.0 and this[1] change reverted. Notice
 that in order to enable -Wimplicit-fallthrough for Clang, such change[1]
 is meant to be reverted at some point. So, these patches help to move
 in that direction.
 
 Thanks!
 
 [1] commit e2079e93f5 ("kbuild: Do not enable -Wimplicit-fallthrough for clang for now")
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Merge tag 'Wimplicit-fallthrough-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull more fallthrough fixes from Gustavo Silva:
 "Fix maore fall-through warnings when building the kernel with clang
  and '-Wimplicit-fallthrough'"

* tag 'Wimplicit-fallthrough-clang-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  Input: Fix fall-through warning for Clang
  scsi: aic94xx: Fix fall-through warning for Clang
  i3c: master: cdns: Fix fall-through warning for Clang
  net/mlx4: Fix fall-through warning for Clang
2021-07-07 11:03:04 -07:00
Gustavo A. R. Silva
4e1c8c17ff scsi: aic94xx: Fix fall-through warning for Clang
In preparation to enable -Wimplicit-fallthrough for Clang, fix a
warning by explicitly adding a fallthrough; statement.

Notice that this seems to be a Duff device for performance[1]. So,
although the code looks a bit _funny_, I didn't want to refactor
or modify it beyond merely adding a fallthrough marking, which
might be the least disruptive way to fix this issue.

[1] https://www.drdobbs.com/a-reusable-duff-device/184406208

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-06 16:26:17 -05:00
Linus Torvalds
f5c13f1fde Driver core changes for 5.14-rc1
Here is the small set of driver core and debugfs updates for 5.14-rc1.
 
 Included in here are:
 	- debugfs api cleanups (touched some drivers)
 	- devres updates
 	- tiny driver core updates and tweaks
 
 Nothing major in here at all, and all have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core changes from Greg KH:
 "Here is the small set of driver core and debugfs updates for 5.14-rc1.

  Included in here are:

   - debugfs api cleanups (touched some drivers)

   - devres updates

   - tiny driver core updates and tweaks

  Nothing major in here at all, and all have been in linux-next for a
  while with no reported issues"

* tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
  docs: ABI: testing: sysfs-firmware-memmap: add some memmap types.
  devres: Enable trace events
  devres: No need to call remove_nodes() when there none present
  devres: Use list_for_each_safe_from() in remove_nodes()
  devres: Make locking straight forward in release_nodes()
  kernfs: move revalidate to be near lookup
  drivers/base: Constify static attribute_group structs
  firmware_loader: remove unneeded 'comma' macro
  devcoredump: remove contact information
  driver core: Drop helper devm_platform_ioremap_resource_wc()
  component: Rename 'dev' to 'parent'
  component: Drop 'dev' argument to component_match_realloc()
  device property: Don't check for NULL twice in the loops
  driver core: auxiliary bus: Fix typo in the docs
  drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO
  debugfs: remove return value of debugfs_create_ulong()
  debugfs: remove return value of debugfs_create_bool()
  scsi: snic: debugfs: remove local storage of debugfs files
  b43: don't save dentries for debugfs
  b43legacy: don't save dentries for debugfs
  ...
2021-07-05 13:51:41 -07:00
Martin K. Petersen
d2500a0c0e scsi: blkcg: Fix application ID config options
Commit d2bcbeab42 ("scsi: blkcg: Add app identifier support for
blkcg") introduced an FC_APPID config option under SCSI. However, the
added config option is not used anywhere. Simply remove it.

The block layer BLK_CGROUP_FC_APPID config option is what actually
controls whether the application ID code should be built or not. Make
this option dependent on NVMe over FC since that is currently the only
transport which supports the capability.

Fixes: d2bcbeab42 ("scsi: blkcg: Add app identifier support for blkcg")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-04 11:44:22 -07:00
Linus Torvalds
bd31b9efbf SCSI misc on 20210702
This series consists of the usual driver updates (ufs, ibmvfc,
 megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
 elx and mpi3mr being new drivers.  The major core change is a rework
 to drop the status byte handling macros and the old bit shifted
 definitions and the rest of the updates are minor fixes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series consists of the usual driver updates (ufs, ibmvfc,
  megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with
  elx and mpi3mr being new drivers.

  The major core change is a rework to drop the status byte handling
  macros and the old bit shifted definitions and the rest of the updates
  are minor fixes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits)
  scsi: aha1740: Avoid over-read of sense buffer
  scsi: arcmsr: Avoid over-read of sense buffer
  scsi: ips: Avoid over-read of sense buffer
  scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe()
  scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame()
  scsi: elx: libefc: Fix less than zero comparison of a unsigned int
  scsi: elx: efct: Fix pointer error checking in debugfs init
  scsi: elx: efct: Fix is_originator return code type
  scsi: elx: efct: Fix link error for _bad_cmpxchg
  scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel()
  scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session()
  scsi: elx: efct: Fix error handling in efct_hw_init()
  scsi: elx: efct: Remove redundant initialization of variable lun
  scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected"
  scsi: lpfc: Fix build error in lpfc_scsi.c
  scsi: target: iscsi: Remove redundant continue statement
  scsi: qla4xxx: Remove redundant continue statement
  scsi: ppa: Switch to use module_parport_driver()
  scsi: imm: Switch to use module_parport_driver()
  scsi: mpt3sas: Fix error return value in _scsih_expander_add()
  ...
2021-07-02 15:14:36 -07:00
Christoph Hellwig
da6269da4c block: remove REQ_OP_SCSI_{IN,OUT}
With the legacy IDE driver gone drivers now use either REQ_OP_DRV_*
or REQ_OP_SCSI_*, so unify the two concepts of passthrough requests
into a single one.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-06-30 15:34:19 -06:00
Linus Torvalds
df668a5fe4 for-5.14/block-2021-06-29
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Merge tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block

Pull core block updates from Jens Axboe:

 - disk events cleanup (Christoph)

 - gendisk and request queue allocation simplifications (Christoph)

 - bdev_disk_changed cleanups (Christoph)

 - IO priority improvements (Bart)

 - Chained bio completion trace fix (Edward)

 - blk-wbt fixes (Jan)

 - blk-wbt enable/disable fix (Zhang)

 - Scheduler dispatch improvements (Jan, Ming)

 - Shared tagset scheduler improvements (John)

 - BFQ updates (Paolo, Luca, Pietro)

 - BFQ lock inversion fix (Jan)

 - Documentation improvements (Kir)

 - CLONE_IO block cgroup fix (Tejun)

 - Remove of ancient and deprecated block dump feature (zhangyi)

 - Discard merge fix (Ming)

 - Misc fixes or followup fixes (Colin, Damien, Dan, Long, Max, Thomas,
   Yang)

* tag 'for-5.14/block-2021-06-29' of git://git.kernel.dk/linux-block: (129 commits)
  block: fix discard request merge
  block/mq-deadline: Remove a WARN_ON_ONCE() call
  blk-mq: update hctx->dispatch_busy in case of real scheduler
  blk: Fix lock inversion between ioc lock and bfqd lock
  bfq: Remove merged request already in bfq_requests_merged()
  block: pass a gendisk to bdev_disk_changed
  block: move bdev_disk_changed
  block: add the events* attributes to disk_attrs
  block: move the disk events code to a separate file
  block: fix trace completion for chained bio
  block/partitions/msdos: Fix typo inidicator -> indicator
  block, bfq: reset waker pointer with shared queues
  block, bfq: check waker only for queues with no in-flight I/O
  block, bfq: avoid delayed merge of async queues
  block, bfq: boost throughput by extending queue-merging times
  block, bfq: consider also creation time in delayed stable merge
  block, bfq: fix delayed stable merge check
  block, bfq: let also stably merged queues enjoy weight raising
  blk-wbt: make sure throttle is enabled properly
  blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
  ...
2021-06-30 12:12:56 -07:00
Xie Yongji
5f638e5ac6 scsi: virtio_scsi: Add validation for residual bytes from response
This ensures that the residual bytes in response (might come from an
untrusted device) will not exceed the data buffer length.

Link: https://lore.kernel.org/r/20210615105218.214-1-xieyongji@bytedance.com
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29 16:54:08 -04:00
Wen Xiong
7df47cdf19 scsi: ipr: System crashes when seeing type 20 error
Test team saw "4041: Incomplete multipath connection between enclosure and
device" when I/O drawers/drives have bad connections. System crashes when
handling these type 20 errors.

[    5.332452] ipr: 3/00-06-09: 4041: Incomplete multipath connection between enclosure and device
[    5.332460] ipr: 3/00-06-09: The IOA failed to detect an expected path to a device
[    5.332465] ipr: 3/00-06-09: Inactive path is failed: Resource Path=3/00-04-09
[    5.332471] ipr: 3/00-06-09: Functional IOA port: Resource Path=3/00-04, Link rate=unknown, WWN=5005076059C38E05
[    5.332478] ipr: 3/00-06-09: Incorrectly connected Device LUN: Resource Path=3/00-00-00-00-00-00-00-00-00-20-00-00-24-00-00-00-0, Link rate=unknown, WWN=0020000024000000
[    5.332487] ipr: 3/00-06-09: Path element=FF: Resource Path=3/50-05-07-60-45-56-5A-9C-00-00-00-00-00-00-00-00-0, Link rate=unknown WWN=0000000000000000
[    5.332492] ipr: 00000000: 54520EC8 00000000 00000000 4E532050
[    5.332495] ipr: 00000010: 45522054 49434B3D 00000050 278130E6
[    5.332498] ipr: 00000020: 033B5300 03282584 4C4D00E0 278039F3
[    5.332501] ipr: 00000030: 033B5180 03282404 4C4D00E0 276A0282
[    5.332504] ipr: 00000040: 033B5000 03281E04 447000E0 27697D19
[    5.332507] ipr: 00000050: 033B4E80 03281D84 447000E0 27690524
[    5.332509] ipr: 00000060: 033B4D00 03281C84 447000E0 27687FDA
[    5.332512] ipr: 00000070: 033B4B80 03281C04 447000E0 2767E787
[    5.332515] ipr: 00000080: 033B4A00 03281B04 447000E0 27674F0A

Link: https://lore.kernel.org/r/1624587085-10073-1-git-send-email-wenxiong@linux.vnet.ibm.com
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29 16:46:08 -04:00
Quat Le
104739aca4 scsi: core: Retry I/O for Notify (Enable Spinup) Required error
If the device is power-cycled, it takes time for the initiator to transmit
the periodic NOTIFY (ENABLE SPINUP) SAS primitive, and for the device to
respond to the primitive to become ACTIVE. Retry the I/O request to allow
the device time to become ACTIVE.

Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210629155826.48441-1-quat.le@oracle.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Quat Le <quat.le@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29 16:41:56 -04:00
Sreekanth Reddy
62e528b80d scsi: mpi3mr: Fix warnings reported by smatch
Fix the following warning reported by static analysis tool smatch:

smatch warnings:
drivers/scsi/mpi3mr/mpi3mr_os.c:873 mpi3mr_update_tgtdev() error: we
previously assumed 'mrioc->shost' could be null (see line 870

Link: https://lore.kernel.org/r/20210629141153.3158-1-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29 16:39:15 -04:00
Linus Torvalds
21edf50948 Updates for the interrupt subsystem:
Core changes:
 
   - Cleanup and simplification of common code to invoke the low level
     interrupt flow handlers when this invocation requires irqdomain
     resolution. Add the necessary core infrastructure.
 
   - Provide a proper interface for modular PMU drivers to set the
     interrupt affinity.
 
   - Add a request flag which allows to exclude interrupts from spurious
     interrupt detection. Useful especially for IPI handlers which always
     return IRQ_HANDLED which turns the spurious interrupt detection into a
     pointless waste of CPU cycles.
 
 Driver changes:
 
   - Bulk convert interrupt chip drivers to the new irqdomain low level flow
     handler invocation mechanism.
 
   - Add device tree bindings for the Renesas R-Car M3-W+ SoC
 
   - Enable modular build of the Qualcomm PDC driver
 
   - The usual small fixes and improvements.
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Merge tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for the interrupt subsystem:

  Core changes:

   - Cleanup and simplification of common code to invoke the low level
     interrupt flow handlers when this invocation requires irqdomain
     resolution. Add the necessary core infrastructure.

   - Provide a proper interface for modular PMU drivers to set the
     interrupt affinity.

   - Add a request flag which allows to exclude interrupts from spurious
     interrupt detection. Useful especially for IPI handlers which
     always return IRQ_HANDLED which turns the spurious interrupt
     detection into a pointless waste of CPU cycles.

  Driver changes:

   - Bulk convert interrupt chip drivers to the new irqdomain low level
     flow handler invocation mechanism.

   - Add device tree bindings for the Renesas R-Car M3-W+ SoC

   - Enable modular build of the Qualcomm PDC driver

   - The usual small fixes and improvements"

* tag 'irq-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
  dt-bindings: interrupt-controller: arm,gic-v3: Describe GICv3 optional properties
  irqchip: gic-pm: Remove redundant error log of clock bulk
  irqchip/sun4i: Remove unnecessary oom message
  irqchip/irq-imx-gpcv2: Remove unnecessary oom message
  irqchip/imgpdc: Remove unnecessary oom message
  irqchip/gic-v3-its: Remove unnecessary oom message
  irqchip/gic-v2m: Remove unnecessary oom message
  irqchip/exynos-combiner: Remove unnecessary oom message
  irqchip: Bulk conversion to generic_handle_domain_irq()
  genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
  genirq: Add generic_handle_domain_irq() helper
  irqchip/nvic: Convert from handle_IRQ() to handle_domain_irq()
  irqdesc: Fix __handle_domain_irq() comment
  genirq: Use irq_resolve_mapping() to implement __handle_domain_irq() and co
  irqdomain: Introduce irq_resolve_mapping()
  irqdomain: Protect the linear revmap with RCU
  irqdomain: Cache irq_data instead of a virq number in the revmap
  irqdomain: Use struct_size() helper when allocating irqdomain
  irqdomain: Make normal and nomap irqdomains exclusive
  powerpc: Move the use of irq_domain_add_nomap() behind a config option
  ...
2021-06-29 12:25:04 -07:00
Linus Torvalds
b694011a4a hyperv-next for 5.14
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Merge tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv updates from Wei Liu:
 "Just a few minor enhancement patches and bug fixes"

* tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
  Drivers: hv: Move Hyper-V extended capability check to arch neutral code
  drivers: hv: Fix missing error code in vmbus_connect()
  x86/hyperv: fix logical processor creation
  hv_utils: Fix passing zero to 'PTR_ERR' warning
  scsi: storvsc: Use blk_mq_unique_tag() to generate requestIDs
  Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer
  hv_balloon: Remove redundant assignment to region_start
2021-06-29 11:21:35 -07:00
Javed Hasan
df99446d5c scsi: qedf: Add check to synchronize abort and flush
A race condition was observed between qedf_cleanup_fcport() and
qedf_process_error_detect()->qedf_initiate_abts():

 [2069091.203145] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
 [2069091.213100] IP: [<ffffffffc0666cc6>] qedf_process_error_detect+0x96/0x130 [qedf]
 [2069091.223391] PGD 1943049067 PUD 194304e067 PMD 0
 [2069091.233420] Oops: 0000 [#1] SMP
 [2069091.361820] CPU: 1 PID: 14751 Comm: kworker/1:46 Kdump: loaded Tainted: P           OE  ------------   3.10.0-1160.25.1.el7.x86_64 #1
 [2069091.388474] Hardware name: HPE Synergy 480 Gen10/Synergy 480 Gen10 Compute Module, BIOS I42 04/08/2020
 [2069091.402148] Workqueue: qedf_io_wq qedf_fp_io_handler [qedf]
 [2069091.415780] task: ffff9bb9f5190000 ti: ffff9bacaef9c000 task.ti: ffff9bacaef9c000
 [2069091.429590] RIP: 0010:[<ffffffffc0666cc6>]  [<ffffffffc0666cc6>] qedf_process_error_detect+0x96/0x130 [qedf]
 [2069091.443666] RSP: 0018:ffff9bacaef9fdb8  EFLAGS: 00010246
 [2069091.457692] RAX: 0000000000000000 RBX: ffff9bbbbbfb18a0 RCX: ffffffffc0672310
 [2069091.471997] RDX: 00000000000005de RSI: ffffffffc066e7f0 RDI: ffff9beb3f4538d8
 [2069091.486130] RBP: ffff9bacaef9fdd8 R08: 0000000000006000 R09: 0000000000006000
 [2069091.500321] R10: 0000000000001551 R11: ffffb582996ffff8 R12: ffffb5829b39cc18
 [2069091.514779] R13: ffff9badab380c28 R14: ffffd5827f643900 R15: 0000000000000040
 [2069091.529472] FS:  0000000000000000(0000) GS:ffff9beb3f440000(0000) knlGS:0000000000000000
 [2069091.543926] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 [2069091.558942] CR2: 0000000000000030 CR3: 000000193b9a2000 CR4: 00000000007607e0
 [2069091.573424] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 [2069091.587876] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 [2069091.602007] PKRU: 00000000
 [2069091.616010] Call Trace:
 [2069091.629902]  [<ffffffffc0663969>] qedf_process_cqe+0x109/0x2e0 [qedf]
 [2069091.643941]  [<ffffffffc0663b66>] qedf_fp_io_handler+0x26/0x60 [qedf]
 [2069091.657948]  [<ffffffff85ebddcf>] process_one_work+0x17f/0x440
 [2069091.672111]  [<ffffffff85ebeee6>] worker_thread+0x126/0x3c0
 [2069091.686057]  [<ffffffff85ebedc0>] ? manage_workers.isra.26+0x2a0/0x2a0
 [2069091.700033]  [<ffffffff85ec5da1>] kthread+0xd1/0xe0
 [2069091.713891]  [<ffffffff85ec5cd0>] ? insert_kthread_work+0x40/0x40

Add check in qedf_process_error_detect(). When flush is active, let the
cmds be completed from the cleanup contex.

Link: https://lore.kernel.org/r/20210624171802.598-1-jhasan@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29 00:00:20 -04:00
Javed Hasan
b27c457755 scsi: libfc: Fix array index out of bound exception
Fix array index out of bound exception in fc_rport_prli_resp().

Link: https://lore.kernel.org/r/20210615165939.24327-1-jhasan@marvell.com
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-28 22:31:16 -04:00
Linus Torvalds
e2f527b58e SCSI fixes on 20210625
Two small fixes, both in upper layer drivers (scsi disk and cdrom).
 The sd one is fixing a commit changing revalidation that came from the
 block tree a while ago (5.10) and the sr one adds handling of a
 condition we didn't previously handle for manually removed media.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two small fixes, both in upper layer drivers (scsi disk and cdrom).

  The sd one is fixing a commit changing revalidation that came from the
  block tree a while ago (5.10) and the sr one adds handling of a
  condition we didn't previously handle for manually removed media"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: sd: Call sd_revalidate_disk() for ioctl(BLKRRPART)
  scsi: sr: Return appropriate error code when disk is ejected
2021-06-25 15:59:14 -07:00
Zhen Lei
2506f5dcb8 scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro
Use DEVICE_ATTR_RO()/RW() macro helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-5-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:02 -04:00
Zhen Lei
4c92f89802 scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro
Use DEVICE_ATTR_ADMIN_RO() macro helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-4-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:02 -04:00
Zhen Lei
80068f8228 scsi: qedf: Use DEVICE_ATTR_RO() macro
Use DEVICE_ATTR_RO() macro helper instead of plain DEVICE_ATTR(), which
makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-3-thunder.leizhen@huawei.com
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:02 -04:00
Zhen Lei
ffa636470a scsi: qedi: Use DEVICE_ATTR_RO() macro
Use DEVICE_ATTR_RO() macro helper instead of plain DEVICE_ATTR(), which
makes the code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210616034419.725-2-thunder.leizhen@huawei.com
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:01 -04:00
Christophe JAILLET
c7fa2c855e scsi: be2iscsi: Fix some missing space in some messages
Fix a few style issues reported by checkpatch.pl:

 - Avoid duplicated word in comment.

 - Add missing space in messages.

 - Unneeded continuation line character.

 - Unneeded extra spaces.

 - Unneeded log message after memory allocation failure.

Link: https://lore.kernel.org/r/8cb62f0eb96ec7ce7a73fe97cb4490dd5121ecff.1623482155.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:01 -04:00
Christophe JAILLET
030e4138d1 scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe()
If an error occurs after a pci_enable_pcie_error_reporting() call, it must
be undone by a corresponding pci_disable_pcie_error_reporting() call, as
already done in the remove function.

Link: https://lore.kernel.org/r/77adb02cfea7f1364e5603ecf3930d8597ae356e.1623482155.git.christophe.jaillet@wanadoo.fr
Fixes: 3567f36a09 ("[SCSI] be2iscsi: Fix AER handling in driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:01 -04:00
YueHaibing
75d645a61c scsi: ufs: Fix build warning without CONFIG_PM
drivers/scsi/ufs/ufshcd.c:9770:12: warning: ‘ufshcd_rpmb_resume’ defined but not used [-Wunused-function]
 static int ufshcd_rpmb_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9037:12: warning: ‘ufshcd_wl_runtime_resume’ defined but not used [-Wunused-function]
 static int ufshcd_wl_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ufs/ufshcd.c:9017:12: warning: ‘ufshcd_wl_runtime_suspend’ defined but not used [-Wunused-function]
 static int ufshcd_wl_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~

Move it into #ifdef block to fix this.

Link: https://lore.kernel.org/r/20210617031326.36908-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 23:00:01 -04:00
SeongJae Park
73b306a2bc scsi: bnx2fc: Remove meaningless bnx2fc_abts_cleanup() return value assignment
Commit 122c81c563 ("scsi: bnx2fc: Return failure if io_req is already in
ABTS processing") made bnx2fc_eh_abort() return FAILED when io_req was
alrady in ABTS processing, regardless of the return value of
bnx2fc_abts_cleanup().  However, the change left the assignment of the
return value of bnx2fc_abts_cleanup(). Remove this.

This issue was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

Link: https://lore.kernel.org/r/20210618164514.6299-1-sj38.park@gmail.com
Fixes: 122c81c563 ("scsi: bnx2fc: Return failure if io_req is already in ABTS processing")
Acked-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 22:59:47 -04:00
Christoph Hellwig
d1b7f92035 scsi: sd: Call sd_revalidate_disk() for ioctl(BLKRRPART)
While the disk state has nothing to do with partitions, BLKRRPART is used
to force a full revalidate after things like a disk format for historical
reasons. Restore that behavior.

Link: https://lore.kernel.org/r/20210617115504.1732350-1-hch@lst.de
Fixes: 471bd0af54 ("sd: use bdev_check_media_change")
Reported-by: Xiang Chen <chenxiang66@hisilicon.com>
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-22 22:02:20 -04:00