| Commit message (Collapse) | Author | Age | Files | Lines |
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four mostly error leg fixes and one more important regression in a
prior commit (the qla2xxx one)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: fc: check for rport presence in fc_block_scsi_eh
scsi: qla2xxx: Fix uninitialized work element
scsi: libiscsi: fix shifting of DID_REQUEUE host byte
scsi: libfc: fix a deadlock in fc_rport_work
scsi: fixup kernel warning during rmmod()
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Coverity-scan recently found a possible NULL pointer dereference in
fc_block_scsi_eh() as starget_to_rport() either returns the rport for
the startget or NULL.
While it is rather unlikely to have fc_block_scsi_eh() called without an
rport associated it's a good idea to catch potential misuses of the API
gracefully.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fixes following stack trace
kernel: Call Trace:
kernel: dump_stack+0x63/0x84
kernel: __warn+0xd1/0xf0
kernel: warn_slowpath_null+0x1d/0x20
kernel: __queue_work+0x37a/0x420
kernel: queue_work_on+0x27/0x40
kernel: queue_work+0x14/0x20 [qla2xxx]
kernel: schedule_work+0x13/0x20 [qla2xxx]
kernel: qla2x00_post_work+0xab/0xb0 [qla2xxx]
kernel: qla2x00_post_aen_work+0x3b/0x50 [qla2xxx]
kernel: qla2x00_async_event+0x20d/0x15d0 [qla2xxx]
kernel: ? lock_timer_base+0x7d/0xa0
kernel: qla24xx_intr_handler+0x1da/0x310 [qla2xxx]
kernel: qla2x00_poll+0x36/0x60 [qla2xxx]
kernel: qla2x00_mailbox_command+0x659/0xec0 [qla2xxx]
kernel: ? proc_create_data+0x7a/0xd0
kernel: qla25xx_init_rsp_que+0x15b/0x240 [qla2xxx]
kernel: ? request_irq+0x14/0x20 [qla2xxx]
kernel: qla25xx_create_rsp_que+0x256/0x3c0 [qla2xxx]
kernel: qla2xxx_create_qpair+0x2af/0x5b0 [qla2xxx]
kernel: qla2x00_probe_one+0x1107/0x1c30 [qla2xxx]
Fixes: ec7193e26055 ("qla2xxx: Fix delayed response to command for loop mode/direct connect.")
Cc: <stable@vger.kernel.org> # 4.13
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The SCSI host byte should be shifted left by 16 in order to have
scsi_decide_disposition() do the right thing (.i.e. requeue the
command).
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: 661134ad3765 ("[SCSI] libiscsi, bnx2i: make bound ep check common")
Cc: Lee Duncan <lduncan@suse.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Bart Van Assche <Bart.VanAssche@sandisk.com>
Cc: Chris Leech <cleech@redhat.com>
Acked-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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In places like fc_rport_recv_plogi_req and fcoe_ctlr_vn_add we always
take the lport disc_mutex lock before the rports mutex
(rp_mutex) lock. Gaurding list_del_rcu(&rdata->peers) with
disc.disc_mutex in fc_rport_work is correct but the rp_mutex lock
can and should to be dropped before taking that lock else results
in a deadlock.
Signed-off-by: Satish Kharat <satishkh@cisco.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Calling rmmod() on a FC driver will results in warnings like
WARNING: CPU: 60 PID: 14640 at fs/sysfs/group.c:237 device_del+0x54/0x240()
sysfs group ffffffff81eff140 not found for kobject '3:0:0:3'
The problem here is that during scsi_remove_target() we will iterate
over all devices, but fail to remove any of those as the call to
scsi_device_get() fails the check to module_is_live(). Hence the
devices will not be removed at this point, but all intermediate
structures like fc rport etc. will be. Later on during
scsi_forget_host() the devices are removed for real, but the device
parent is already removed and causes this warning.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Kyle Fortin <kyle.fortin@oracle.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
- a couple of serious fixes: use after free and blacklist for WRITE
SAME
- one error leg fix: write_pending failure
- one user experience problem: do not override max_sectors_kb
- one minor unused function removal
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ibmvscsis: Fix write_pending failure path
scsi: libiscsi: Remove iscsi_destroy_session
scsi: libiscsi: Fix use-after-free race during iscsi_session_teardown
scsi: sd: Do not override max_sectors_kb sysfs setting
scsi: sd: Implement blacklist option for WRITE SAME w/ UNMAP
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For write_pending if the queue is down or client failed then return -EIO
so that LIO can properly process the completed command. Prior we
returned 0 since LIO could not handle it properly. Now with commit
fa7e25cf13a6 ("target: Fix unknown fabric callback queue-full errors")
that patch addresses LIO's ability to handle things right.
Signed-off-by: Bryant G. Ly <bgly@us.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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iscsi_session_teardown was the only user of this function. Function
currently is just short for iscsi_remove_session + iscsi_free_session.
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Session attributes exposed through sysfs were freed before the device
was destroyed, resulting in a potential use-after-free. Free these
attributes after removing the device.
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Acked-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A user may lower the max_sectors_kb setting in sysfs to accommodate
certain workloads. Previously we would always set the max I/O size to
either the block layer default or the optional preferred I/O size
reported by the device.
Keep the current heuristics for the initial setting of max_sectors_kb.
For subsequent invocations, only update the current queue limit if it
exceeds the capabilities of the hardware.
Cc: <stable@vger.kernel.org>
Reported-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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SBC-4 states:
"A MAXIMUM UNMAP LBA COUNT field set to a non-zero value indicates the
maximum number of LBAs that may be unmapped by an UNMAP command"
"A MAXIMUM WRITE SAME LENGTH field set to a non-zero value indicates
the maximum number of contiguous logical blocks that the device server
allows to be unmapped or written in a single WRITE SAME command."
Despite the spec being clear on the topic, some devices incorrectly
expect WRITE SAME commands with the UNMAP bit set to be limited to the
value reported in MAXIMUM UNMAP LBA COUNT in the Block Limits VPD.
Implement a blacklist option that can be used to accommodate devices
with this behavior.
Cc: <stable@vger.kernel.org>
Reported-by: Bill Kuzeja <William.Kuzeja@stratus.com>
Reported-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eight mostly minor fixes for recently discovered issues in drivers"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ILLEGAL REQUEST + ASC==27 => target failure
scsi: aacraid: Add a small delay after IOP reset
scsi: scsi_transport_fc: Also check for NOTPRESENT in fc_remote_port_add()
scsi: scsi_transport_fc: set scsi_target_id upon rescan
scsi: scsi_transport_iscsi: fix the issue that iscsi_if_rx doesn't parse nlmsg properly
scsi: aacraid: error: testing array offset 'bus' after use
scsi: lpfc: Don't return internal MBXERR_ERROR code from probe function
scsi: aacraid: Fix 2T+ drives on SmartIOC-2000
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ASC 0x27 is "WRITE PROTECTED". This error code is returned e.g. by
Fujitsu ETERNUS systems under certain conditions for WRITE SAME 16
commands with UNMAP bit set. It should not be treated as a path
error. In general, it makes sense to assume that being write protected
is a target rather than a path property.
Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit 0e9973ed3382 ("scsi: aacraid: Add periodic checks to see IOP reset
status") changed the way driver checks if a reset succeeded. Now, after an
IOP reset, aacraid immediately start polling a register to verify the reset
is complete.
This behavior cause regressions on the reset path in PowerPC (at least).
Since the delay after the IOP reset was removed by the aforementioned patch,
the fact driver just starts to read a register instantly after the reset
was issued (by writing in another register) "corrupts" the reset procedure,
which ends up failing all the time.
The issue highly impacted kdump on PowerPC, since on kdump path we
proactively issue a reset in adapter (through the reset_devices kernel
parameter).
This patch (re-)adds a delay right after IOP reset is issued. Empirically
we measured that 3 seconds is enough, but for safety reasons we delay
for 5s (and since it was 30s before, 5s is still a small amount).
For reference, without this patch we observe the following messages
on kdump kernel boot process:
[ 76.294] aacraid 0003:01:00.0: IOP reset failed
[ 76.294] aacraid 0003:01:00.0: ARC Reset attempt failed
[ 86.524] aacraid 0003:01:00.0: adapter kernel panic'd ff.
[ 86.524] aacraid 0003:01:00.0: Controller reset type is 3
[ 86.524] aacraid 0003:01:00.0: Issuing IOP reset
[146.534] aacraid 0003:01:00.0: IOP reset failed
[146.534] aacraid 0003:01:00.0: ARC Reset attempt failed
Fixes: 0e9973ed3382 ("scsi: aacraid: Add periodic checks to see IOP reset status")
Cc: stable@vger.kernel.org # v4.13+
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Acked-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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During failover there is a small race window between fc_remote_port_add()
and fc_timeout_deleted_rport(); the latter drops the lock after setting the
port to NOTPRESENT, so if fc_remote_port_add() is called right at that time
it will fail to detect the existing rport and happily adding a new
structure, causing rports to get registered twice.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When an rport is found in the bindings array there is no guarantee that
it had been a target port, so we need to call fc_remote_port_rolechg()
here to ensure the scsi_target_id is set correctly. Otherwise the port
will never be scanned.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Tested-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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nlmsg properly
ChunYu found a kernel crash by syzkaller:
[ 651.617875] kasan: CONFIG_KASAN_INLINE enabled
[ 651.618217] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 651.618731] general protection fault: 0000 [#1] SMP KASAN
[ 651.621543] CPU: 1 PID: 9539 Comm: scsi Not tainted 4.11.0.cov #32
[ 651.621938] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[ 651.622309] task: ffff880117780000 task.stack: ffff8800a3188000
[ 651.622762] RIP: 0010:skb_release_data+0x26c/0x590
[...]
[ 651.627260] Call Trace:
[ 651.629156] skb_release_all+0x4f/0x60
[ 651.629450] consume_skb+0x1a5/0x600
[ 651.630705] netlink_unicast+0x505/0x720
[ 651.632345] netlink_sendmsg+0xab2/0xe70
[ 651.633704] sock_sendmsg+0xcf/0x110
[ 651.633942] ___sys_sendmsg+0x833/0x980
[ 651.637117] __sys_sendmsg+0xf3/0x240
[ 651.638820] SyS_sendmsg+0x32/0x50
[ 651.639048] entry_SYSCALL_64_fastpath+0x1f/0xc2
It's caused by skb_shared_info at the end of sk_buff was overwritten by
ISCSI_KEVENT_IF_ERROR when parsing nlmsg info from skb in iscsi_if_rx.
During the loop if skb->len == nlh->nlmsg_len and both are sizeof(*nlh),
ev = nlmsg_data(nlh) will acutally get skb_shinfo(SKB) instead and set a
new value to skb_shinfo(SKB)->nr_frags by ev->type.
This patch is to fix it by checking nlh->nlmsg_len properly there to
avoid over accessing sk_buff.
Reported-by: ChunYu Wang <chunwang@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix possible indexing array of bound for &aac->hba_map[bus][cid], where
bus and cid boundary check happens later.
Fixes: 0d643ff3c353 ("scsi: aacraid: use aac_tmf_callback for reset fib")
Signed-off-by: Nikola Pajkovsky <npajkovsky@suse.cz>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Internal error codes happen to be positive, thus the PCI driver core
won't treat them as failure, but we do. This would cause a crash later
on as lpfc_pci_remove_one() is called (e.g. as shutdown function).
Fixes: 6d368e532168 ("[SCSI] lpfc 8.3.24: Add resource extent support")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The logic for supporting large drives was previously tied to 4Kn support
for SmartIOC-2000. As SmartIOC-2000 does not support volumes using 4Kn
drives, use the intended option flag AAC_OPT_NEW_COMM_64 to determine
support for volumes greater than 2T.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The qla2xxx driver uses the FC-specific error when it needed to return an
error to the FC-NVME transport. Convert to use a generic value instead.
Signed-off-by: James Smart <james.smart@broadcom.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The lpfc driver uses the FC-specific error when it needed to return an
error to the FC-NVME transport. Convert to use a generic value instead.
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When calling SG_GET_REQUEST_TABLE ioctl only a half-filled table is
returned; the remaining part will then contain stale kernel memory
information. This patch zeroes out the entire table to avoid this
issue.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Factor out sg_fill_request_table() for better readability.
[mkp: typos, applied by hand]
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After series of changes around WRITE_SAME and UNMAP setup we ended up
with leftover unnecessary condition. Remove it.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A cleanup patch introduced a fatal typo from inbalanced curly braces:
drivers/scsi/arm/acornscsi.c: In function 'acornscsi_host_reset':
drivers/scsi/arm/acornscsi.c:2773:1: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
drivers/scsi/arm/acornscsi.c:2795:12: error: invalid storage class for function 'acornscsi_show_info'
static int acornscsi_show_info(struct seq_file *m, struct Scsi_Host *instance)
The same patch incorrectly changed the argument type of the reset
handler, as shown by this warning:
drivers/scsi/arm/acornscsi.c:2888:27: error: initialization of 'int (*)(struct scsi_cmnd *)' from incompatible pointer type 'int (*)(struct Scsi_Host *)' [-Werror=incompatible-pointer-types]
.eh_host_reset_handler = acornscsi_host_reset,
This removes one the extraneous opening brace and reverts the
argument type change.
[mkp: fixed checkpatch complaint]
Fixes: 74fa80ee3fae ("scsi: acornscsi: move bus reset to host reset")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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bsg-lib now embeddeds the job structure into the request, and
req->special can't be used anymore.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull SCSI fixes from James Bottomley:
"A tiny update: one patch corrects a Kconfig problem with the shift of
the SAS SMP code to BSG and the other removes a vestige of user space
target mode"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: scsi_transport_sas: select BLK_DEV_BSGLIB
scsi: Remove Scsi_Host.uspace_req_q
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Without CONFIG_BLK_DEV_BSGLIB, we get a link error here:
drivers/scsi/scsi_transport_sas.o: In function `sas_bsg_initialize':
scsi_transport_sas.c:(.text+0xcc0): undefined reference to `bsg_setup_queue'
scsi_transport_sas.c:(.text+0xd10): undefined reference to `bsg_setup_queue'
drivers/scsi/scsi_transport_sas.o: In function `sas_smp_dispatch':
scsi_transport_sas.c:(.text+0xe8c): undefined reference to `bsg_job_done'
This modifies the Kconfig 'select' statement accordingly, and matching
what we do for the other two scsi_transport implementations that use
bsglib.
Fixes: 651a01364994 ("scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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A patch I wrote myself several years ago removed SCSI target support
from the code under drivers/scsi. That patch removed the code that sets
uspace_req_q to a non-NULL value. Hence also remove the code that
depends on uspace_req_q != NULL.
References: commit 066465251303 ("tgt: removal")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull dma-mapping updates from Christoph Hellwig:
- removal of the old dma_alloc_noncoherent interface
- remove unused flags to dma_declare_coherent_memory
- restrict OF DMA configuration to specific physical busses
- use the iommu mailing list for dma-mapping questions and patches
* tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping:
dma-coherent: fix dma_declare_coherent_memory() logic error
ARM: imx: mx31moboard: Remove unused 'dma' variable
dma-coherent: remove an unused variable
MAINTAINERS: use the iommu list for the dma-mapping subsystem
dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags
dma-coherent: remove the DMA_MEMORY_INCLUDES_CHILDREN flag
of: restrict DMA configuration
dma-mapping: remove dma_alloc_noncoherent and dma_free_noncoherent
i825xx: switch to switch to dma_alloc_attrs
au1000_eth: switch to dma_alloc_attrs
sgiseeq: switch to dma_alloc_attrs
dma-mapping: reduce dma_mapping_error inline bloat
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DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
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First, number of CPUs can't be negative number.
Second, different signnnedness leads to suboptimal code in the following
cases:
1)
kmalloc(nr_cpu_ids * sizeof(X));
"int" has to be sign extended to size_t.
2)
while (loff_t *pos < nr_cpu_ids)
MOVSXD is 1 byte longed than the same MOV.
Other cases exist as well. Basically compiler is told that nr_cpu_ids
can't be negative which can't be deduced if it is "int".
Code savings on allyesconfig kernel: -3KB
add/remove: 0/0 grow/shrink: 25/264 up/down: 261/-3631 (-3370)
function old new delta
coretemp_cpu_online 450 512 +62
rcu_init_one 1234 1272 +38
pci_device_probe 374 399 +25
...
pgdat_reclaimable_pages 628 556 -72
select_fallback_rq 446 369 -77
task_numa_find_cpu 1923 1807 -116
Link: http://lkml.kernel.org/r/20170819114959.GA30580@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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memset32() can be used to initialise these three arrays. Minor code
footprint reduction.
Link: http://lkml.kernel.org/r/20170720184539.31609-8-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: David Miller <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull SCSI updates from James Bottomley:
"This is mostly updates of the usual suspects: lpfc, qla2xxx, hisi_sas,
megaraid_sas, zfcp and a host of minor updates.
The major driver change here is the elimination of the block based
cciss driver in favour of the SCSI based hpsa driver (which now drives
all the legacy cases cciss used to be required for). Plus a reset
handler clean up and the redo of the SAS SMP handler to use bsg lib"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits)
scsi: scsi-mq: Always unprepare before requeuing a request
scsi: Show .retries and .jiffies_at_alloc in debugfs
scsi: Improve requeuing behavior
scsi: Call scsi_initialize_rq() for filesystem requests
scsi: qla2xxx: Reset the logo flag, after target re-login.
scsi: qla2xxx: Fix slow mem alloc behind lock
scsi: qla2xxx: Clear fc4f_nvme flag
scsi: qla2xxx: add missing includes for qla_isr
scsi: qla2xxx: Fix an integer overflow in sysfs code
scsi: aacraid: report -ENOMEM to upper layer from aac_convert_sgraw2()
scsi: aacraid: get rid of one level of indentation
scsi: aacraid: fix indentation errors
scsi: storvsc: fix memory leak on ring buffer busy
scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough
scsi: smartpqi: remove the smp_handler stub
scsi: hpsa: remove the smp_handler stub
scsi: bsg-lib: pass the release callback through bsg_setup_queue
scsi: Rework handling of scsi_device.vpd_pg8[03]
scsi: Rework the code for caching Vital Product Data (VPD)
scsi: rcu: Introduce rcu_swap_protected()
...
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The value of "size" comes from the user. When we add "start + size" it
could lead to an integer overflow bug.
It means we vmalloc() a lot more memory than we had intended. I believe
that on 64 bit systems vmalloc() can succeed even if we ask it to
allocate huge 4GB buffers. So we would get memory corruption and likely
a crash when we call ha->isp_ops->write_optrom() and ->read_optrom().
Only root can trigger this bug.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194061
Cc: <stable@vger.kernel.org>
Fixes: b7cc176c9eb3 ("[SCSI] qla2xxx: Allow region-based flash-part accesses.")
Reported-by: shqking <shqking@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When storvsc is sending I/O to Hyper-v, it may allocate a bigger buffer
descriptor for large data payload that can't fit into a pre-allocated
buffer descriptor. This bigger buffer is freed on return path.
If I/O request to Hyper-v fails due to ring buffer busy, the storvsc
allocated buffer descriptor should also be freed.
[mkp: applied by hand]
Fixes: be0cf6ca301c ("scsi: storvsc: Set the tablesize based on the information given by the host")
Cc: <stable@vger.kernel.org>
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This fixes a potential race condition observed on Power systems.
Several places throughout the aacraid driver call aac_fib_send or
similar to send a command to the aacraid adapter, then check the return
code to determine if the command was actually sent to the adapter, then
update the phase field in the scsi command scratch pad area to track
that the firmware now owns this command. However, there is nothing that
ensures that by the time the aac_fib_send function returns and we go to
write to the scsi command, that the command hasn't already completed and
the scsi command has been freed. This was causing random crashes in the
TCP stack which was tracked down to be caused by memory that had been a
struct request + scsi_cmnd being now used for an skbuff. Memory
poisoning was enabled in the kernel to debug this which showed that the
last owner of the memory that had been freed was aacraid and that it was
a struct request. The memory that was corrupted was the exact data
pattern of AAC_OWNER_FIRMWARE and it was at the same offset that aacraid
writes, which is scsicmd->SCp.phase. The patch below resolves this
issue.
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The > here should be >= or we end up reading one element beyond the end
of the qedi->itt_map[] array. The qedi->itt_map[] array is allocated in
qedi_alloc_itt().
Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.")
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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One of the two scsi-mq functions that requeue a request unprepares a
request before requeueing (scsi_io_completion()) but the other function
not (__scsi_queue_insert()). Make sure that a request is unprepared
before requeuing it.
Fixes: commit d285203cf647 ("scsi: add support for a blk-mq based I/O path.")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Make these two member variables available in debugfs such that their
value can be verified by kernel developers. An example of the new
output:
ffff8804a513d480 {.op=READ, .cmd_flags=META|PRIO, .rq_flags=MQ_INFLIGHT|DONTPREP|IO_STAT|STATS, .atomic_flags=STARTED, .tag=17, .internal_tag=-1, .cmd=Read(10) 28 00 08 81 32 38 00 00 08 00, .retries=0, allocated 0.010 s ago}
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Requests are unprepared and reprepared when being requeued. Avoid that
requeuing resets .jiffies_at_alloc and .retries by initializing these
two member variables from inside scsi_initialize_rq() and by preserving
both member variables when preparing a request. This patch affects the
requeuing behavior of both the legacy scsi and the scsi-mq code paths.
Reported-by: Brian King <brking@linux.vnet.ibm.com>
References: https://lkml.org/lkml/2017/8/18/923 ("Re: [BUG][bisected 270065e] linux-next fails to boot on powerpc")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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If a pass-through request is submitted then blk_get_request()
initializes that request by calling scsi_initialize_rq(). Also call this
function for filesystem requests. Introduce CMD_INITIALIZED to keep
track of whether or not a request has already been initialized.
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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After relogin is sucessful, "send_els_logo" flag needs to be
reinitialized. This will allow next re-login to happen successfully.
In target mode, this flag was not reset correctly, causing IO's failure
during reset recovery and port ON/OFF test cases from initiator.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Call Trace:
[<ffffffff81341687>] dump_stack+0x6b/0xa4
[<ffffffff810c3e30>] ? print_irqtrace_events+0xd0/0xe0
[<ffffffff8109e3c3>] ___might_sleep+0x183/0x240
[<ffffffff8109e4d2>] __might_sleep+0x52/0x90
[<ffffffff811fe17b>] kmem_cache_alloc_trace+0x5b/0x300
[<ffffffff810c666b>] ? __lock_acquired+0x30b/0x420
[<ffffffffa0733c28>] qla2x00_alloc_fcport+0x38/0x2a0 [qla2xxx]
[<ffffffffa07217f4>] ? qla2x00_do_work+0x34/0x2b0 [qla2xxx]
[<ffffffff816cc82b>] ? _raw_spin_lock_irqsave+0x7b/0x90
[<ffffffffa072169a>] ? qla24xx_create_new_sess+0x3a/0x160 [qla2xxx]
[<ffffffffa0721723>] qla24xx_create_new_sess+0xc3/0x160 [qla2xxx]
[<ffffffff810c91ed>] ? trace_hardirqs_on+0xd/0x10
[<ffffffffa07218f8>] qla2x00_do_work+0x138/0x2b0 [qla2xxx]
Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: Darren Trap <darren.trap@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Since commit 7401bc18d1ee ("scsi: qla2xxx: Add FC-NVMe command
handling") we make use of 'struct nvmefc_fcp_req' in
qla24xx_nvme_iocb_entry() without including linux/nvme-fc-driver.h where
it is defined.
Add linux/nvme-fc-driver.h (and scsi/fc/fc_fs.h as nvme-fc-driver.h
needs the definition of 'struct fc_ba_rjt' from scsi/fc/fc_fs.h) to the
header files included by qla_isr.c.
Fixes: 7401bc18d1ee ("scsi: qla2xxx: Add FC-NVMe command handling")
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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