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The names RESERVE and RELEASE are not only used in <scsi/scsi_proto.h> but
also elsewhere in the kernel:
$ git grep -nHE 'define[[:blank:]]*(RESERVE|RELEASE)[[:blank:]]'
drivers/input/joystick/walkera0701.c:13:#define RESERVE 20000
drivers/s390/char/tape_std.h:56:#define RELEASE 0xD4 /* 3420 NOP, 3480 REJECT */
drivers/s390/char/tape_std.h:58:#define RESERVE 0xF4 /* 3420 NOP, 3480 REJECT */
Additionally, while the names of the symbolic constants RESERVE_10 and
RELEASE_10 include the command length, the command length is not included
in the RESERVE and RELEASE names. Address both issues by renaming the
RESERVE and RELEASE constants into RESERVE_6 and RELEASE_6 respectively.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20250210205031.2970833-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Now that the crc32c() library function directly takes advantage of
architecture-specific optimizations, it is unnecessary to go through the
crypto API. Just use crc32c(). This is much simpler, and it improves
performance due to eliminating the crypto API overhead.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20250207041724.70733-1-ebiggers@kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Compare the stored values of por_ctr and new_media_ctr against the values
in the device struct. In case of mismatch, the Unit Attention corresponding
to the counter has happened. This is a safeguard against another ULD
catching the Unit Attention sense data.
Macros scsi_get_ua_new_media_ctr and scsi_get_ua_por_ctr are added to read
the current values of the counters.
Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250120194925.44432-4-Kai.Makisara@kolumbus.fi
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The purpose of the counters is to enable all ULDs attached to a device to
find out that a New Media or/and Power On/Reset Unit Attentions has/have
been set, even if another ULD catches the Unit Attention as response to a
SCSI command.
The ULDs can read the counters and see if the values have changed from the
previous check.
Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250120194925.44432-3-Kai.Makisara@kolumbus.fi
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Tested-by: John Meneghini <jmeneghi@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/gregkh/driver-core
Pull driver core and debugfs updates from Greg KH:
"Here is the big set of driver core and debugfs updates for 6.14-rc1.
Included in here is a bunch of driver core, PCI, OF, and platform rust
bindings (all acked by the different subsystem maintainers), hence the
merge conflict with the rust tree, and some driver core api updates to
mark things as const, which will also require some fixups due to new
stuff coming in through other trees in this merge window.
There are also a bunch of debugfs updates from Al, and there is at
least one user that does have a regression with these, but Al is
working on tracking down the fix for it. In my use (and everyone
else's linux-next use), it does not seem like a big issue at the
moment.
Here's a short list of the things in here:
- driver core rust bindings for PCI, platform, OF, and some i/o
functions.
We are almost at the "write a real driver in rust" stage now,
depending on what you want to do.
- misc device rust bindings and a sample driver to show how to use
them
- debugfs cleanups in the fs as well as the users of the fs api for
places where drivers got it wrong or were unnecessarily doing
things in complex ways.
- driver core const work, making more of the api take const * for
different parameters to make the rust bindings easier overall.
- other small fixes and updates
All of these have been in linux-next with all of the aforementioned
merge conflicts, and the one debugfs issue, which looks to be resolved
"soon""
* tag 'driver-core-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (95 commits)
rust: device: Use as_char_ptr() to avoid explicit cast
rust: device: Replace CString with CStr in property_present()
devcoredump: Constify 'struct bin_attribute'
devcoredump: Define 'struct bin_attribute' through macro
rust: device: Add property_present()
saner replacement for debugfs_rename()
orangefs-debugfs: don't mess with ->d_name
octeontx2: don't mess with ->d_parent or ->d_parent->d_name
arm_scmi: don't mess with ->d_parent->d_name
slub: don't mess with ->d_name
sof-client-ipc-flood-test: don't mess with ->d_name
qat: don't mess with ->d_name
xhci: don't mess with ->d_iname
mtu3: don't mess wiht ->d_iname
greybus/camera - stop messing with ->d_iname
mediatek: stop messing with ->d_iname
netdevsim: don't embed file_operations into your structs
b43legacy: make use of debugfs_get_aux()
b43: stop embedding struct file_operations into their objects
carl9170: stop embedding file_operations into their objects
...
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, fnic, qla2xx, mpi3mr).
The major core change is the renaming of the slave_ methods plus a bit
of constification. The rest are minor updates and fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (103 commits)
scsi: fnic: Propagate SCSI error code from fnic_scsi_drv_init()
scsi: fnic: Test for memory allocation failure and return error code
scsi: fnic: Return appropriate error code from failure of scsi drv init
scsi: fnic: Return appropriate error code for mem alloc failure
scsi: fnic: Remove always-true IS_FNIC_FCP_INITIATOR macro
scsi: fnic: Fix use of uninitialized value in debug message
scsi: fnic: Delete incorrect debugfs error handling
scsi: fnic: Remove unnecessary else to fix warning in FDLS FIP
scsi: fnic: Remove extern definition from .c files
scsi: fnic: Remove unnecessary else and unnecessary break in FDLS
scsi: mpi3mr: Fix possible crash when setting up bsg fails
scsi: ufs: bsg: Set bsg_queue to NULL after removal
scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails
scsi: st: Don't set pos_unknown just after device recognition
scsi: aic7xxx: Fix build 'aicasm' warning
scsi: Revert "scsi: ufs: core: Probe for EXT_IID support"
scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
scsi: scsi_debug: Constify sdebug_driver_template
scsi: documentation: Corrections for struct updates
scsi: driver-api: documentation: Change what is added to docbook
...
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Use a plain BLK_MQ_F_* flag to select the round robin tag selection
instead of overlaying an enum with just two possible values into the
flags space.
Doing so allows adding a BLK_MQ_F_MAX sentinel for simplified overflow
checking in the messy debugfs helpers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20250106083531.799976-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Constify the following API:
struct device *device_find_child(struct device *dev, void *data,
int (*match)(struct device *dev, void *data));
To :
struct device *device_find_child(struct device *dev, const void *data,
device_match_t match);
typedef int (*device_match_t)(struct device *dev, const void *data);
with the following reasons:
- Protect caller's match data @*data which is for comparison and lookup
and the API does not actually need to modify @*data.
- Make the API's parameters (@match)() and @data have the same type as
all of other device finding APIs (bus|class|driver)_find_device().
- All kinds of existing device match functions can be directly taken
as the API's argument, they were exported by driver core.
Constify the API and adapt for various existing usages.
BTW, various subsystem changes are squashed into this commit to meet
'git bisect' requirement, and this commit has the minimal and simplest
changes to complement squashing shortcoming, and that may bring extra
code improvement.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org> # for drivers/pwm
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20241224-const_dfc_done-v5-4-6623037414d4@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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iscsi_create_session() last use was removed in 2008 by commit 756135215ec7
("[SCSI] iscsi: remove session and host binding in libiscsi")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20241223180110.50266-1-linux@treblig.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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scsi_mid_low_api.rst refers to scsi_register() and scsi_unregister() but
these functions don't exist. They have been replaced by more meaningful
names.
Update one driver (megaraid_mbox.c) that uses "scsi_unregister" in a
warning message. Update scsi_mid_low_api.rst to eliminate references to
scsi_register() and scsi_unregister().
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20241205041839.164404-1-rdunlap@infradead.org
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: Chandrakanth patil <chandrakanth.patil@broadcom.com>
Cc: megaraidlinux.pdl@broadcom.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Bart Van Assche <bvanassche@acm.org> says:
Hi Martin,
The text "slave_" in multiple function names does not make it clear what
the purpose of these functions is. Hence this patch series that renames all
SCSI functions that have the word "slave" in their function name. Please
consider this patch series for the next merge window.
Thanks,
Bart.
Link: https://lore.kernel.org/r/20241022180839.2712439-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Now that all SCSI drivers have been converted from .slave_configure() to
.sdev_configure(), remove support for .slave_configure() from the SCSI
core.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241022180839.2712439-5-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Improve naming consistency with the .sdev_prep() and .sdev_destroy()
methods by renaming .device_configure() into .sdev_configure().
Cc: Christoph Hellwig <hch@lst.de>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241022180839.2712439-3-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Rename .slave_alloc() into .sdev_init() and .slave_destroy() into
.sdev_destroy(). The new names make it clear that these are actions on
SCSI devices. Make this change in the SCSI core, SCSI drivers and also
in the ATA drivers. No functionality has been changed.
This patch has been created as follows:
* Change the text "slave_alloc" into "sdev_init" in all source files
except those in drivers/net/ and Documentation/.
* Change the text "slave_destroy" into "sdev_destroy" in all source
files except those in drivers/net/ and Documentation/.
* Rename lpfc_no_slave() into lpfc_no_sdev().
* Manually adjust whitespace where necessary to restore vertical
alignment (dc395x driver and include/linux/libata.h).
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20241022180839.2712439-2-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Replace the deprecated zero-length array with a modern flexible array
member in the struct iscsi_bsg_host_vendor_reply.
Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20241110223323.42772-2-thorsten.blum@linux.dev
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
"This contains a single series from Uros to replace uses of
<linux/random.h> with prandom.h or other more specific headers
as needed, in order to avoid a circular header issue.
Uros' goal is to be able to use percpu.h from prandom.h, which
will then allow him to define __percpu in percpu.h rather than
in compiler_types.h"
* tag 'random-6.13-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
prandom: Include <linux/percpu.h> in <linux/prandom.h>
random: Do not include <linux/prandom.h> in <linux/random.h>
netem: Include <linux/prandom.h> in sch_netem.c
lib/test_scanf: Include <linux/prandom.h> instead of <linux/random.h>
lib/test_parman: Include <linux/prandom.h> instead of <linux/random.h>
bpf/tests: Include <linux/prandom.h> instead of <linux/random.h>
lib/rbtree-test: Include <linux/prandom.h> instead of <linux/random.h>
random32: Include <linux/prandom.h> instead of <linux/random.h>
kunit: string-stream-test: Include <linux/prandom.h>
lib/interval_tree_test.c: Include <linux/prandom.h> instead of <linux/random.h>
bpf: Include <linux/prandom.h> instead of <linux/random.h>
scsi: libfcoe: Include <linux/prandom.h> instead of <linux/random.h>
fscrypt: Include <linux/once.h> in fs/crypto/keyring.c
mtd: tests: Include <linux/prandom.h> instead of <linux/random.h>
media: vivid: Include <linux/prandom.h> in vivid-vid-cap.c
drm/lib: Include <linux/prandom.h> instead of <linux/random.h>
drm/i915/selftests: Include <linux/prandom.h> instead of <linux/random.h>
crypto: testmgr: Include <linux/prandom.h> instead of <linux/random.h>
x86/kaslr: Include <linux/prandom.h> instead of <linux/random.h>
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Substitute the inclusion of <linux/random.h> header with
<linux/prandom.h> to allow the removal of legacy inclusion
of <linux/prandom.h> from <linux/random.h>.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, smartpqi, NCR5380, mac_scsi, lpfc,
mpi3mr).
There are no user visible core changes and a whole series of minor
updates and fixes. The largest core change is probably the
simplification of the workqueue allocation path"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (86 commits)
scsi: smartpqi: update driver version to 2.1.30-031
scsi: smartpqi: fix volume size updates
scsi: smartpqi: fix rare system hang during LUN reset
scsi: smartpqi: add new controller PCI IDs
scsi: smartpqi: add counter for parity write stream requests
scsi: smartpqi: correct stream detection
scsi: smartpqi: Add fw log to kdump
scsi: bnx2fc: Remove some unused fields in struct bnx2fc_rport
scsi: qla2xxx: Remove the unused 'del_list_entry' field in struct fc_port
scsi: ufs: core: Remove ufshcd_urgent_bkops()
scsi: core: Remove obsoleted declaration for scsi_driverbyte_string()
scsi: bnx2i: Remove unused declarations
scsi: core: Simplify an alloc_workqueue() invocation
scsi: ufs: Simplify alloc*_workqueue() invocation
scsi: stex: Simplify an alloc_ordered_workqueue() invocation
scsi: scsi_transport_fc: Simplify alloc_workqueue() invocations
scsi: snic: Simplify alloc_workqueue() invocations
scsi: qedi: Simplify an alloc_workqueue() invocation
scsi: qedf: Simplify alloc_workqueue() invocations
scsi: myrs: Simplify an alloc_ordered_workqueue() invocation
...
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scsi_driverbyte_string() has been unused since commit 54c29086195f ("scsi:
core: Drop the now obsolete driver_byte definitions"). Remove it.
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20240826032005.4007834-1-cuigaosheng1@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Let alloc_workqueue() format the workqueue name. Remove the
work_q_name[] member from struct Scsi_Host because it is no longer
used by any SCSI driver nor by the SCSI core.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240822195944.654691-19-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Let alloc_workqueue() format the workqueue name instead of calling
snprintf() explicitly.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240822195944.654691-16-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Let alloc_ordered_workqueue() format the workqueue name instead of calling
snprintf() explicitly.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240822195944.654691-7-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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scsi_logical_block_count() should return the block count of a given SCSI
command. The original implementation ended up shifting twice, leading to an
incorrect count being returned. Fix the conversion between bytes and
logical blocks.
Cc: stable@vger.kernel.org
Fixes: 6a20e21ae1e2 ("scsi: core: Add helper to return number of logical blocks in a request")
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Link: https://lore.kernel.org/r/20240813053534.7720-1-chaotian.jing@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big set of driver core changes for 6.11-rc1.
Lots of stuff in here, with not a huge diffstat, but apis are evolving
which required lots of files to be touched. Highlights of the changes
in here are:
- platform remove callback api final fixups (Uwe took many releases
to get here, finally!)
- Rust bindings for basic firmware apis and initial driver-core
interactions.
It's not all that useful for a "write a whole driver in rust" type
of thing, but the firmware bindings do help out the phy rust
drivers, and the driver core bindings give a solid base on which
others can start their work.
There is still a long way to go here before we have a multitude of
rust drivers being added, but it's a great first step.
- driver core const api changes.
This reached across all bus types, and there are some fix-ups for
some not-common bus types that linux-next and 0-day testing shook
out.
This work is being done to help make the rust bindings more safe,
as well as the C code, moving toward the end-goal of allowing us to
put driver structures into read-only memory. We aren't there yet,
but are getting closer.
- minor devres cleanups and fixes found by code inspection
- arch_topology minor changes
- other minor driver core cleanups
All of these have been in linux-next for a very long time with no
reported problems"
* tag 'driver-core-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
ARM: sa1100: make match function take a const pointer
sysfs/cpu: Make crash_hotplug attribute world-readable
dio: Have dio_bus_match() callback take a const *
zorro: make match function take a const pointer
driver core: module: make module_[add|remove]_driver take a const *
driver core: make driver_find_device() take a const *
driver core: make driver_[create|remove]_file take a const *
firmware_loader: fix soundness issue in `request_internal`
firmware_loader: annotate doctests as `no_run`
devres: Correct code style for functions that return a pointer type
devres: Initialize an uninitialized struct member
devres: Fix memory leakage caused by driver API devm_free_percpu()
devres: Fix devm_krealloc() wasting memory
driver core: platform: Switch to use kmemdup_array()
driver core: have match() callback in struct bus_type take a const *
MAINTAINERS: add Rust device abstractions to DRIVER CORE
device: rust: improve safety comments
MAINTAINERS: add Danilo as FIRMWARE LOADER maintainer
MAINTAINERS: add Rust FW abstractions to FIRMWARE LOADER
firmware: rust: improve safety comments
...
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Pull block updates from Jens Axboe:
- NVMe updates via Keith:
- Device initialization memory leak fixes (Keith)
- More constants defined (Weiwen)
- Target debugfs support (Hannes)
- PCIe subsystem reset enhancements (Keith)
- Queue-depth multipath policy (Redhat and PureStorage)
- Implement get_unique_id (Christoph)
- Authentication error fixes (Gaosheng)
- MD updates via Song
- sync_action fix and refactoring (Yu Kuai)
- Various small fixes (Christoph Hellwig, Li Nan, and Ofir Gal, Yu
Kuai, Benjamin Marzinski, Christophe JAILLET, Yang Li)
- Fix loop detach/open race (Gulam)
- Fix lower control limit for blk-throttle (Yu)
- Add module descriptions to various drivers (Jeff)
- Add support for atomic writes for block devices, and statx reporting
for same. Includes SCSI and NVMe (John, Prasad, Alan)
- Add IO priority information to block trace points (Dongliang)
- Various zone improvements and tweaks (Damien)
- mq-deadline tag reservation improvements (Bart)
- Ignore direct reclaim swap writes in writeback throttling (Baokun)
- Block integrity improvements and fixes (Anuj)
- Add basic support for rust based block drivers. Has a dummy null_blk
variant for now (Andreas)
- Series converting driver settings to queue limits, and cleanups and
fixes related to that (Christoph)
- Cleanup for poking too deeply into the bvec internals, in preparation
for DMA mapping API changes (Christoph)
- Various minor tweaks and fixes (Jiapeng, John, Kanchan, Mikulas,
Ming, Zhu, Damien, Christophe, Chaitanya)
* tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux: (206 commits)
floppy: add missing MODULE_DESCRIPTION() macro
loop: add missing MODULE_DESCRIPTION() macro
ublk_drv: add missing MODULE_DESCRIPTION() macro
xen/blkback: add missing MODULE_DESCRIPTION() macro
block/rnbd: Constify struct kobj_type
block: take offset into account in blk_bvec_map_sg again
block: fix get_max_segment_size() warning
loop: Don't bother validating blocksize
virtio_blk: Don't bother validating blocksize
null_blk: Don't bother validating blocksize
block: Validate logical block size in blk_validate_limits()
virtio_blk: Fix default logical block size fallback
nvmet-auth: fix nvmet_auth hash error handling
nvme: implement ->get_unique_id
block: pass a phys_addr_t to get_max_segment_size
block: add a bvec_phys helper
blk-lib: check for kill signal in ioctl BLKZEROOUT
block: limit the Write Zeroes to manually writing zeroes fallback
block: refacto blkdev_issue_zeroout
block: move read-only and supported checks into (__)blkdev_issue_zeroout
...
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In the match() callback, the struct device_driver * should not be
changed, so change the function callback to be a const *. This is one
step of many towards making the driver core safe to have struct
device_driver in read-only memory.
Because the match() callback is in all busses, all busses are modified
to handle this properly. This does entail switching some container_of()
calls to container_of_const() to properly handle the constant *.
For some busses, like PCI and USB and HV, the const * is cast away in
the match callback as those busses do want to modify those structures at
this point in time (they have a local lock in the driver structure.)
That will have to be changed in the future if they wish to have their
struct device * in read-only-memory.
Cc: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Alex Elder <elder@kernel.org>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Support is divided into two main areas:
- reading VPD pages and setting sdev request_queue limits
- support WRITE ATOMIC (16) command and tracing
The relevant block limits VPD page need to be read to allow the block layer
request_queue atomic write limits to be set. These VPD page limits are
described in sbc4r22 section 6.6.4 - Block limits VPD page.
There are five limits of interest:
- MAXIMUM ATOMIC TRANSFER LENGTH
- ATOMIC ALIGNMENT
- ATOMIC TRANSFER LENGTH GRANULARITY
- MAXIMUM ATOMIC TRANSFER LENGTH WITH BOUNDARY
- MAXIMUM ATOMIC BOUNDARY SIZE
MAXIMUM ATOMIC TRANSFER LENGTH is the maximum length for a WRITE ATOMIC
(16) command. It will not be greater than the device MAXIMUM TRANSFER
LENGTH.
ATOMIC ALIGNMENT and ATOMIC TRANSFER LENGTH GRANULARITY are the minimum
alignment and length values for an atomic write in terms of logical blocks.
Unlike NVMe, SCSI does not specify an LBA space boundary, but does specify
a per-IO boundary granularity. The maximum boundary size is specified in
MAXIMUM ATOMIC BOUNDARY SIZE. When used, this boundary value is set in the
WRITE ATOMIC (16) ATOMIC BOUNDARY field - layout for the WRITE_ATOMIC_16
command can be found in sbc4r22 section 5.48. This boundary value is the
granularity size at which the device may atomically write the data. A value
of zero in WRITE ATOMIC (16) ATOMIC BOUNDARY field means that all data must
be atomically written together.
MAXIMUM ATOMIC TRANSFER LENGTH WITH BOUNDARY is the maximum atomic write
length if a non-zero boundary value is set.
For atomic write support, the WRITE ATOMIC (16) boundary is not of much
interest, as the block layer expects each request submitted to be executed
atomically. However, the SCSI spec does leave itself open to a quirky
scenario where MAXIMUM ATOMIC TRANSFER LENGTH is zero, yet MAXIMUM ATOMIC
TRANSFER LENGTH WITH BOUNDARY and MAXIMUM ATOMIC BOUNDARY SIZE are both
non-zero. This case will be supported.
To set the block layer request_queue atomic write capabilities, sanitize
the VPD page limits and set limits as follows:
- atomic_write_unit_min is derived from granularity and alignment values.
If no granularity value is not set, use physical block size
- atomic_write_unit_max is derived from MAXIMUM ATOMIC TRANSFER LENGTH. In
the scenario where MAXIMUM ATOMIC TRANSFER LENGTH is zero and boundary
limits are non-zero, use MAXIMUM ATOMIC BOUNDARY SIZE for
atomic_write_unit_max. New flag scsi_disk.use_atomic_write_boundary is
set for this scenario.
- atomic_write_boundary_bytes is set to zero always
SCSI also supports a WRITE ATOMIC (32) command, which is for type 2
protection enabled. This is not going to be supported now, so check for
T10_PI_TYPE2_PROTECTION when setting any request_queue limits.
To handle an atomic write request, add support for WRITE ATOMIC (16)
command in handler sd_setup_atomic_cmnd(). Flag use_atomic_write_boundary
is checked here for encoding ATOMIC BOUNDARY field.
Trace info is also added for WRITE_ATOMIC_16 command.
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20240620125359.2684798-9-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Prepare for skipping the IO Advice Hints Grouping mode page for USB storage
devices.
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Joao Machado <jocrismachado@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Christian Heusel <christian@heusel.eu>
Cc: stable@vger.kernel.org
Fixes: 4f53138fffc2 ("scsi: sd: Translate data lifetime information")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240613211828.2077477-2-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The function mpi3mr_qcmd() of the mpi3mr driver is able to indicate to
the HBA if a read or write command directed at an ATA device should be
translated to an NCQ read/write command with the high prioiryt bit set
when the request uses the RT priority class and the user has enabled NCQ
priority through sysfs.
However, unlike the mpt3sas driver, the mpi3mr driver does not define
the sas_ncq_prio_supported and sas_ncq_prio_enable sysfs attributes, so
the ncq_prio_enable field of struct mpi3mr_sdev_priv_data is never
actually set and NCQ Priority cannot ever be used.
Fix this by defining these missing atributes to allow a user to check if
an ATA device supports NCQ priority and to enable/disable the use of NCQ
priority. To do this, lift the function scsih_ncq_prio_supp() out of the
mpt3sas driver and make it the generic SCSI SAS transport function
sas_ata_ncq_prio_supported(). Nothing in that function is hardware
specific, so this function can be used in both the mpt3sas driver and
the mpi3mr driver.
Reported-by: Scott McCoy <scott.mccoy@wdc.com>
Fixes: 023ab2a9b4ed ("scsi: mpi3mr: Add support for queue command processing")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240611083435.92961-1-dlemoal@kernel.org
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, lpfc, qla2xxx, mpi3mr, libsas).
The major update (which causes a conflict with block, see below) is
Christoph removing the queue limits and their associated block
helpers.
The remaining patches are assorted minor fixes and deprecated function
updates plus a bit of constification"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits)
scsi: mpi3mr: Sanitise num_phys
scsi: lpfc: Copyright updates for 14.4.0.2 patches
scsi: lpfc: Update lpfc version to 14.4.0.2
scsi: lpfc: Add support for 32 byte CDBs
scsi: lpfc: Change lpfc_hba hba_flag member into a bitmask
scsi: lpfc: Introduce rrq_list_lock to protect active_rrq_list
scsi: lpfc: Clear deferred RSCN processing flag when driver is unloading
scsi: lpfc: Update logging of protection type for T10 DIF I/O
scsi: lpfc: Change default logging level for unsolicited CT MIB commands
scsi: target: Remove unused list 'device_list'
scsi: iscsi: Remove unused list 'connlist_err'
scsi: ufs: exynos: Add support for Tensor gs101 SoC
scsi: ufs: exynos: Add some pa_dbg_ register offsets into drvdata
scsi: ufs: exynos: Allow max frequencies up to 267Mhz
scsi: ufs: exynos: Add EXYNOS_UFS_OPT_TIMER_TICK_SELECT option
scsi: ufs: exynos: Add EXYNOS_UFS_OPT_UFSPR_SECURE option
scsi: ufs: dt-bindings: exynos: Add gs101 compatible
scsi: qla2xxx: Fix debugfs output for fw_resource_count
scsi: qedf: Ensure the copied buf is NUL terminated
scsi: bfa: Ensure the copied buf is NUL terminated
...
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Complete the kernel-doc notation for enum fc_lport_state. This fixes 7
kernel-doc warnings.
- In struct fc_rport_priv, change 'event_callback' to 'lld_event_callback'
to match the struct member name.
- In struct fc_fcp_pkt, add a description for 'timer_delay' to eliminate
one kernel-doc warning.
- Add return value notation for 3 functions. This fixes 3 kernel-doc
warnings.
There are still 12 warnings for struct members not described in struct
fc_rport_priv and struct fc_lport, e.g:
libfc.h:218: warning: Function parameter or struct member 'event' not described in 'fc_rport_priv'
libfc.h:760: warning: Function parameter or struct member 'vlan' not described in 'fc_lport'
Warnings that are fixed in this patch:
libfc.h:75: warning: Enum value 'LPORT_ST_RNN_ID' not described in enum 'fc_lport_state'
libfc.h:75: warning: Enum value 'LPORT_ST_RSNN_NN' not described in enum 'fc_lport_state'
libfc.h:75: warning: Enum value 'LPORT_ST_RSPN_ID' not described in enum 'fc_lport_state'
libfc.h:75: warning: Enum value 'LPORT_ST_RPA' not described in enum 'fc_lport_state'
libfc.h:75: warning: Enum value 'LPORT_ST_DHBA' not described in enum 'fc_lport_state'
libfc.h:75: warning: Enum value 'LPORT_ST_DPRT' not described in enum 'fc_lport_state'
libfc.h:75: warning: Excess enum value 'LPORT_ST_RPN_ID' description in 'fc_lport_state'
libfc.h:218: warning: Excess struct member 'event_callback' description in 'fc_rport_priv'
libfc.h:793: warning: No description found for return value of 'fc_lport_test_ready'
libfc.h:835: warning: No description found for return value of 'fc_lport_init_stats'
libfc.h:856: warning: No description found for return value of 'lport_priv'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240424050038.31403-1-rdunlap@infradead.org
Cc: Hannes Reinecke <hare@suse.de>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Update header inclusions to follow IWYU (Include What You Use) principle.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240423211843.3996046-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Christoph Hellwig <hch@lst.de> says:
Hi all,
this series converts the SCSI midlayer and LLDDs to use atomic queue
limits API. It is pretty straight forward, except for the mpt3mr
driver which does really weird and probably already broken things by
setting limits from unlocked device iteration callbacks.
I will probably defer the (more complicated) ULD changes to the next
merge window as they would heavily conflict with Damien's zone write
plugging series. With that the series could go in through the SCSI
tree if Jens' ACKs the core block layer bits.
Link: https://lore.kernel.org/r/20240409143748.980206-1-hch@lst.de
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Switch to the ->device_configure method instead of ->slave_configure and
update the block limits on the passed in queue_limits instead of using the
per-limit accessors.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-21-hch@lst.de
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This is a version of ->slave_configure that also takes a queue_limits
structure that the caller applies, and thus allows drivers to reconfigure
the queue using the atomic queue limits API.
In the long run it should also replace ->slave_configure entirely as there
is no need to have two different methods here, and the slave name in
addition to being politically charged also has no basis in the SCSI
standards or the kernel code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-11-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Get drivers out of the business of having to call the block layer DMA
alignment limits helpers themselves.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-8-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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While we really should be killing the block layer bounce buffering ASAP, I
even more urgently need to stop the drivers to fiddle with the limits from
->slave_configure. Add a no_highmem flag to the Scsi_Host to centralize
this setting and switch the remaining four drivers that use block layer
bounce buffering to it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-7-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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fc_function_template
ibmvfc only supports a single segment for BSG FC passthrough. Instead of
having it set a queue limits after creating the BSG queues, add a field so
that the FC transport can set it before allocating the queue.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-6-hch@lst.de
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Turn __scsi_init_queue() into scsi_init_limits() which initializes
queue_limits structure that can be passed to blk_mq_alloc_queue().
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240409143748.980206-5-hch@lst.de
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Randy Dunlap <rdunlap@infradead.org> says:
Clean up some SCSI doc files and fix kernel-doc in 6 header files in
include/scsi/.
Link: https://lore.kernel.org/r/20240408025425.18778-1-rdunlap@infradead.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add a struct short description and a function return value to prevent
kernel-doc warnings:
scsi_transport_srp.h:77: warning: missing initial short description on line:
* struct srp_function_template
scsi_transport_srp.h:132: warning: No description found for return value of 'srp_chkready'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-9-rdunlap@infradead.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add function return value to prevent a kernel-doc warning:
scsi_transport_fc.h:780: warning: No description found for return value of 'fc_remote_port_chkready'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-8-rdunlap@infradead.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add missing function return values to prevent kernel-doc warnings:
scsi.h:75: warning: No description found for return value of 'scsi_status_is_check_condition'
scsi.h:202: warning: No description found for return value of 'scsi_status_is_good'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-7-rdunlap@infradead.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Fix all kernel-doc warnings in <scsi/libfcoe.h>:
libfcoe.h:163: warning: Function parameter or struct member 'ctlr' not described in 'fcoe_ctlr_priv'
libfcoe.h:163: warning: Excess function parameter 'cltr' description in 'fcoe_ctlr_priv'
libfcoe.h:163: warning: No description found for return value of 'fcoe_ctlr_priv'
libfcoe.h:218: warning: Function parameter or struct member 'fd_flags' not described in 'fcoe_fcf'
libfcoe.h:218: warning: Excess struct member 'event' description in 'fcoe_fcf'
libfcoe.h:240: warning: Function parameter or struct member 'rdata' not described in 'fcoe_rport'
libfcoe.h:273: warning: No description found for return value of 'is_fip_mode'
libfcoe.h:332: warning: Function parameter or struct member 'crc_eof_page' not described in 'fcoe_percpu_s'
libfcoe.h:332: warning: Function parameter or struct member 'lock' not described in 'fcoe_percpu_s'
libfcoe.h:332: warning: Excess struct member 'page' description in 'fcoe_percpu_s'
libfcoe.h:362: warning: Function parameter or struct member 'data_src_addr' not described in 'fcoe_port'
libfcoe.h:362: warning: Function parameter or struct member 'get_netdev' not described in 'fcoe_port'
libfcoe.h:362: warning: Excess struct member 'data_srt_addr' description in 'fcoe_port'
libfcoe.h:369: warning: No description found for return value of 'fcoe_get_netdev'
libfcoe.h:386: warning: missing initial short description on line:
* struct netdev_list
libfcoe.h:393: warning: expecting prototype for struct netdev_list. Prototype was for struct fcoe_netdev_mapping instead
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-6-rdunlap@infradead.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Correct kernel-doc comments for struct iser_ctrl to prevent warnings:
iser.h:76: warning: Function parameter or struct member 'read_stag' not described in 'iser_ctrl'
iser.h:76: warning: Excess struct member 'reaf_stag' description in 'iser_ctrl'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-5-rdunlap@infradead.org
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add entries for missing documentation to prevent kernel-doc warnings:
scsi_cmnd.h:365: warning: Function parameter or struct member 'cmd' not described in 'scsi_msg_to_host_byte'
scsi_cmnd.h:365: warning: Function parameter or struct member 'msg' not described in 'scsi_msg_to_host_byte'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-4-rdunlap@infradead.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Modules registering driver with scsi_driver_register() might forget to set
.owner field. The field is used by some of other kernel parts for
reference counting (try_module_get()), so it is expected that drivers will
set it.
Solve the problem by moving this task away from the drivers to the core
scsi code, just like we did for platform_driver in commit 9447057eaff8
("platform_device: use a macro instead of platform_driver_register").
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240328-b4-module-owner-scsi-v1-1-c86cb4f6e91c@linaro.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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John Garry <john.g.garry@oracle.com> says:
There is much duplication in the scsi_host_template structure for the
drivers which use libsas.
Similar to how a standard template is used in libata with
__ATA_BASE_SHT, create a standard template in LIBSAS_SHT_BASE.
Link: https://lore.kernel.org/r/20240308114339.1340549-1-john.g.garry@oracle.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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There is much duplication in the scsi_host_template structure for the
drivers which use libsas.
Similar to how a standard template is used in libata with __ATA_BASE_SHT,
create a standard template in LIBSAS_SHT_BASE.
Don't set a default for max_sectors at SCSI_DEFAULT_MAX_SECTORS, as
scsi_host_alloc() will default to this value automatically.
Even though some drivers don't set proc_name, it won't make much difference
to set as DRV_NAME.
Also add LIBSAS_SHT_BASE_NO_SLAVE_INIT for the hisi_sas drivers which have
custom .slave_alloc and .slave_configure methods.
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20240308114339.1340549-2-john.g.garry@oracle.com
Reviewed-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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