Commit Graph

1088757 Commits

Author SHA1 Message Date
Changcheng Deng
a346f28ad2 scsi: lpfc: Remove unneeded variable
Remove unneeded variable 'rc' used to store return value.

Link: https://lore.kernel.org/r/20220419065750.2573861-1-deng.changcheng@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:43:20 -04:00
ran jianping
671a52f2ae scsi: fnic: Remove unneeded flush_workqueue()
All work currently pending will be done first by calling
destroy_workqueue(). There is no need to flush it explicitly.

Link: https://lore.kernel.org/r/20220424065406.3228528-1-ran.jianping@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ran jianping <ran.jianping@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:41:35 -04:00
ran jianping
cf97628fe1 scsi: qla2xxx: Remove unneeded flush_workqueue()
All work currently pending will be done first by calling
destroy_workqueue(). There is no need to flush it explicitly.

Link: https://lore.kernel.org/r/20220424062413.3220315-1-ran.jianping@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ran jianping <ran.jianping@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:40:26 -04:00
ran jianping
4c0df601e1 scsi: bfa: Remove unneeded flush_workqueue()
All work currently pending will be done first by calling
destroy_workqueue(). There is no need to flush it explicitly.

Link: https://lore.kernel.org/r/20220424061845.3218774-1-ran.jianping@zte.com.cn
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ran jianping <ran.jianping@zte.com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:38:38 -04:00
Haowen Bai
21faafff6a scsi: qedf: Remove unnecessary code
Buffer 'msg' is memset() but never actually used. Drop it.

Link: https://lore.kernel.org/r/1650536693-13089-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:36:31 -04:00
Haowen Bai
bda57fede0 scsi: qla4xxx: Drop redundant memset()
The region set by the call to memset() is immediately overwritten by the
subsequent call to memcpy(). Drop redundant memset().

Link: https://lore.kernel.org/r/1650533091-28815-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:33:36 -04:00
Haowen Bai
391b8dac55 scsi: ipr: Directly return instead of using local ret variable
Fixes coccinelle warning:

./drivers/scsi/ipr.c:10095:13-15: Unneeded variable: "rc". Return "IRQ_HANDLED" on line 10104

Link: https://lore.kernel.org/r/1648433103-24308-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:29:40 -04:00
Wan Jiabing
507bd398a0 scsi: elx: efct: Remove unnecessary memset() in efct_io()
io->sgl is allocated by kzalloc(). The memory is set to zero.
It is unnecessary to call memset again.

Link: https://lore.kernel.org/r/20220318145230.1031-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:28:25 -04:00
Alexander Vorwerk
ce781c3f05 scsi: message: fusion: Remove unused variable retval
The following warning showed up when compiling with W=1.

drivers/message/fusion/mptctl.c: In function ‘mptctl_hp_hostinfo’:
drivers/message/fusion/mptctl.c:2337:8: warning: variable ‘retval’ set but not used [-Wunused-but-set-variable]
  int   retval;

Fixing by removing the variable.

Link: https://lore.kernel.org/r/20220317030325.30526-1-alexander.vorwerk@stud.uni-goettingen.de
Signed-off-by: Alexander Vorwerk <alexander.vorwerk@stud.uni-goettingen.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:26:32 -04:00
Haowen Bai
8c36b054df scsi: aha1542: Remove unneeded semicolon
Fixes coccicheck warning:

drivers/scsi/aha1542.c:553:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:582:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:605:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:306:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:348:3-4: Unneeded semicolon
drivers/scsi/aha1542.c:412:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:640:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:658:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:677:2-3: Unneeded semicolon
drivers/scsi/aha1542.c:538:2-3: Unneeded semicolon

Link: https://lore.kernel.org/r/1647309865-15620-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:25:11 -04:00
Haowen Bai
8e897c8466 scsi: bfa: Remove redundant NULL check
Fix the following warning reported by coccicheck:

drivers/scsi/bfa/bfad_debugfs.c:375:2-7: WARNING: NULL check before some freeing functions is not needed.

Link: https://lore.kernel.org/r/1647309434-13936-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Haowen Bai
1dcd96c4d0 scsi: fnic: Remove redundant NULL check
Fix the following warning reported by coccicheck:

drivers/scsi/fnic/fnic_debugfs.c:90:2-7: WARNING: NULL check before some freeing functions is not needed.

Link: https://lore.kernel.org/r/1647309219-12772-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Haowen Bai
93de8df205 scsi: mac53c94: Fix warning comparing pointer to 0
Fix the following coccicheck warning:

drivers/scsi/mac53c94.c:237:12-13: WARNING comparing pointer to 0

Link: https://lore.kernel.org/r/1647244711-31575-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Borislav Petkov
331c6e910f scsi: aacraid: Fix undefined behavior due to shift overflowing the constant
Fix:

  drivers/scsi/aacraid/commsup.c: In function ‘aac_handle_sa_aif’:
  drivers/scsi/aacraid/commsup.c:1983:2: error: case label does not reduce to an integer constant
    case SA_AIF_BPCFG_CHANGE:
    ^~~~

See https://lore.kernel.org/r/YkwQ6%2BtIH8GQpuct@zn.tnic for the gory
details as to why it triggers with older gccs only.

Link: https://lore.kernel.org/r/20220405151517.29753-2-bp@alien8.de
Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Damien Le Moal
4a5fc1c6d7 scsi: scsi_debug: Add gap zone support
Add the 'zone_cap_mb' kernel module parameter. This parameter defines the
zone capacity. The zone capacity must be less than or equal to the zone
size.

Report that sequential write zones and gap zones are paired in the Zoned
Block Device Characteristics VPD page (page B6h).

This patch has been tested as follows:

modprobe scsi_debug delay=0 sector_size=512 dev_size_mb=128 zbc=host-managed zone_nr_conv=16 zone_size_mb=4 zone_cap_mb=3
modprobe brd rd_nr=1 rd_size=$((1<<20))
mkfs.f2fs -m /dev/ram0 -c /dev/${scsi_debug_dev}
mount /dev/ram0 /mnt
 # Run a fio job that uses /mnt

Link: https://lore.kernel.org/r/20220421183023.3462291-10-bvanassche@acm.org
Cc: Douglas Gilbert <dgilbert@interlog.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: Switched to reporting a constant zone starting LBA granularity ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Damien Le Moal
35dbe2b9a7 scsi: scsi_debug: Rename zone type constants
Rename the scsi_debug zone type constants to prevent a conflict with the
ZBC_ZONE_TYPE_GAP constant from include/scsi/scsi_proto.h.

Link: https://lore.kernel.org/r/20220421183023.3462291-9-bvanassche@acm.org
Cc: Douglas Gilbert <dgilbert@interlog.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: Extracted these changes from a larger patch ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Bart Van Assche
897284e8a0 scsi: scsi_debug: Fix a typo
Change a single occurrence of "nad" into "and".

Link: https://lore.kernel.org/r/20220421183023.3462291-8-bvanassche@acm.org
Cc: Douglas Gilbert <dgilbert@interlog.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Damien Le Moal
c976e588b3 scsi: sd: sd_zbc: Hide gap zones
ZBC-2 allows host-managed disks to report gap zones. This allow zoned disks
to report an offset between data zone starts that is a power of two even if
the number of logical blocks with data per zone is not a power of two.

Another new feature in ZBC-2 is support for constant zone starting LBA
offsets. For zoned disks that report a constant zone starting LBA offset,
hide the gap zones from the block layer. Report the offset between data
zone starts as zone size and report the number of logical blocks with data
per zone as the zone capacity.

Link: https://lore.kernel.org/r/20220421183023.3462291-7-bvanassche@acm.org
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: Reworked this patch ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:05 -04:00
Damien Le Moal
60caf37581 scsi: sd: sd_zbc: Return early in sd_zbc_check_zoned_characteristics()
Return early in sd_zbc_check_zoned_characteristics() for host-aware
disks. This patch does not change any functionality but makes a later patch
easier to read.

Link: https://lore.kernel.org/r/20220421183023.3462291-6-bvanassche@acm.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: extracted this change from a larger patch ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
628617be89 scsi: sd: sd_zbc: Introduce struct zoned_disk_info
Deriving the meaning of the nr_zones, rev_nr_zones, zone_blocks and
rev_zone_blocks member variables requires careful analysis of the source
code. Make the meaning of these member variables easier to understand by
introducing struct zoned_disk_info.

Link: https://lore.kernel.org/r/20220421183023.3462291-5-bvanassche@acm.org
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Damien Le Moal
43af5da09e scsi: sd: sd_zbc: Use logical blocks as unit when querying zones
When querying zones, track the position in logical blocks instead of in
sectors. This change slightly simplifies sd_zbc_report_zones().

Link: https://lore.kernel.org/r/20220421183023.3462291-4-bvanassche@acm.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
[ bvanassche: extracted this change from a larger patch ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
9a93b9c9d3 scsi: sd: sd_zbc: Verify that the zone size is a power of two
The following check in sd_zbc_cmnd_checks() can only work correctly if the
zone size is a power of two:

	if (sector & (sd_zbc_zone_sectors(sdkp) - 1))
		/* Unaligned request */
		return BLK_STS_IOERR;

Hence this patch that verifies that the zone size is a power of two.

Link: https://lore.kernel.org/r/20220421183023.3462291-3-bvanassche@acm.org
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
aa96bfb4ca scsi: sd: sd_zbc: Improve source code documentation
Add several kernel-doc headers. Declare input arrays const. Specify the
array size in function declarations.

Link: https://lore.kernel.org/r/20220421183023.3462291-2-bvanassche@acm.org
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
a8b032b5b3 scsi: ufs: Move the ufs_is_valid_unit_desc_lun() definition
Move the definition of this function from a public into a private header
file since it is only used inside the UFS core.

Link: https://lore.kernel.org/r/20220419225811.4127248-29-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
743b09d854 scsi: ufs: Move the struct ufs_ref_clk definition
Move the definition of this data structure since it is only used in a
single source file.

Link: https://lore.kernel.org/r/20220419225811.4127248-28-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
4bc26113c6 scsi: ufs: Split the ufshcd.h header file
Split the ufshcd.h header file into a header file that defines the
interface used by UFS drivers and another header file with declarations and
data structures only used by the UFS core.

Link: https://lore.kernel.org/r/20220419225811.4127248-27-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
3f06f7800b scsi: ufs: Minimize #include directives
Follow the convention that is used elsewhere in the Linux kernel source
code and only include those headers of which the declarations are used
directly.

Link: https://lore.kernel.org/r/20220419225811.4127248-26-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
cff91daf52 scsi: ufs: Fix kernel-doc syntax in ufshcd.h
This patch fixes all the warnings and errors reported by the following
command:

scripts/kernel-doc -none drivers/scsi/ufs/ufshcd.h

Link: https://lore.kernel.org/r/20220419225811.4127248-25-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:04 -04:00
Bart Van Assche
c10d52d73a scsi: ufs: Remove unnecessary ufshcd-crypto.h include directives
ufshcd-crypto.h declares functions that must only be called by the UFS
core. Hence remove the #include "ufshcd-crypto.h" directive from UFS
drivers.

Link: https://lore.kernel.org/r/20220419225811.4127248-24-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
bee40dc167 scsi: ufs: qcom: Fix ufs_qcom_resume()
Clearing hba->is_sys_suspended if ufs_qcom_resume() succeeds is wrong. That
variable must only be cleared if all actions involved in a resume succeed.
Hence remove the statement that clears hba->is_sys_suspended from
ufs_qcom_resume().

Link: https://lore.kernel.org/r/20220419225811.4127248-23-bvanassche@acm.org
Fixes: 81c0fc51b7 ("ufs-qcom: add support for Qualcomm Technologies Inc platforms")
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
ad8a647e77 scsi: ufs: Introduce ufshcd_clkgate_delay_set()
Since the code to modify delay_ms while holding the host lock occurs twice,
introduce a function that performs this action.

Link: https://lore.kernel.org/r/20220419225811.4127248-22-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
3fb20fcd93 scsi: ufs: Remove locking from around single register writes
Single register writes are atomic and hence do not need to be surrounded by
locking. Additionally, MMIO writes are typically posted asynchronously.
Hence, there is no guarantee that these have finished by the time the
spin_unlock*() call has finished. See also the nonposted-mmio property of
the Open Firmware tree. See also pci_iomap().

Link: https://lore.kernel.org/r/20220419225811.4127248-21-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
21c2e3418d scsi: ufs: Remove the TRUE and FALSE definitions
In the Linux kernel coding style document
(Documentation/process/coding-style.rst) it is recommended to use the type
'bool' and also the values 'true' and 'false'. Hence this patch that
removes the definitions and uses of TRUE and FALSE from the UFS driver.

Link: https://lore.kernel.org/r/20220419225811.4127248-20-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
d0c1725b1e scsi: ufs: Remove paths from source code comments
Since specifying the path in a source file is redundant, remove the paths
from source code comments.

Link: https://lore.kernel.org/r/20220419225811.4127248-19-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
2b10863f71 scsi: ufs: Use an SPDX license identifier in the Kconfig file
As requested in Documentation/process/license-rules.rst, use an SPDX
license identifier.

Link: https://lore.kernel.org/r/20220419225811.4127248-18-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
e2106584d0 scsi: ufs: Rename sdev_ufs_device into ufs_device_wlun
The new name reflects the role of this member variable better: a WLUN
through which the power mode of the UFS device is controlled.

Link: https://lore.kernel.org/r/20220419225811.4127248-17-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
b4ade33b0d scsi: ufs: Remove the driver version
The current version number is 0.2. That driver version was assigned more
than nine years ago. A version number that is not updated while the driver
is updated is not useful. Hence remove the driver version number from the
UFS driver. See also commit e0eca63e34 ("[SCSI] ufs: Separate PCI code
into glue driver").

Link: https://lore.kernel.org/r/20220419225811.4127248-16-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
c906e8328d scsi: ufs: Make the config_scaling_param calls type safe
Pass the actual type to config_scaling_param callback as the third argment
instead of a void pointer. Remove a superfluous NULL pointer check from
ufs_qcom_config_scaling_param().

Link: https://lore.kernel.org/r/20220419225811.4127248-15-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:03 -04:00
Bart Van Assche
778d2b0ec6 scsi: ufs: Switch to aggregate initialization
Make it easier to verify for humans that ufshcd_init_pwr_dev_param()
initializes all structure members. This patch does not change any
functionality.

Link: https://lore.kernel.org/r/20220419225811.4127248-14-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
9474c64e83 scsi: ufs: Remove unused constants and code
Commit 5b44a07b6b ("scsi: ufs: Remove pre-defined initial voltage values
of device power") removed the code that uses the UFS_VREG_VCC* constants
and also the code that sets the min_uV and max_uV member variables. Hence
also remove these constants and that member variable.

Link: https://lore.kernel.org/r/20220419225811.4127248-13-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
acbbfe484f scsi: ufs: Invert the return value of ufshcd_is_hba_active()
It is confusing that ufshcd_is_hba_active() returns 'true' if the HBA is
not active. Clear up this confusion by inverting the return value of
ufshcd_is_hba_active(). This patch does not change any functionality.

Link: https://lore.kernel.org/r/20220419225811.4127248-12-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
aead21f32a scsi: ufs: Declare the quirks array const
Declare the quirks array and also its 'model' member const to make it
explicit that these are not modified.

Link: https://lore.kernel.org/r/20220419225811.4127248-11-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
25eff2f543 scsi: ufs: Rename struct ufs_dev_fix into ufs_dev_quirk
Since struct ufs_dev_fix contains quirk information, rename it into struct
ufs_dev_quirk.

Link: https://lore.kernel.org/r/20220419225811.4127248-10-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
dd2cf44ff4 scsi: ufs: Remove the UFS_FIX() and END_FIX() macros
Since these two macros reduce code readability, remove them.

Link: https://lore.kernel.org/r/20220419225811.4127248-9-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
9d3ab17e84 scsi: ufs: Use get_unaligned_be16() instead of be16_to_cpup()
Use get_unaligned_be16(...) instead of the equivalent but harder to read
be16_to_cpup((__be16 *)...).

Link: https://lore.kernel.org/r/20220419225811.4127248-8-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
1de4378f60 scsi: ufs: Remove ufshcd_lrb.sense_buffer
ufshcd_lrb.sense_buffer is NULL if ufshcd_lrb.cmd is NULL and
ufshcd_lrb.sense_buffer points at cmd->sense_buffer if ufshcd_lrb.cmd is
set. In other words, the ufshcd_lrb.sense_buffer member is identical to
cmd->sense_buffer. Hence this patch that removes the
ufshcd_lrb.sense_buffer structure member.

Link: https://lore.kernel.org/r/20220419225811.4127248-7-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
b639b59b44 scsi: ufs: Remove ufshcd_lrb.sense_bufflen
ufshcd_lrb.sense_bufflen is set but never read. Hence remove this struct
member.

Link: https://lore.kernel.org/r/20220419225811.4127248-6-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
a858af9a9e scsi: ufs: Simplify statements that return a boolean
Convert "if (expr) return true; else return false;" into "return expr;" if
either 'expr' is a boolean expression or the return type of the function is
'bool'.

Link: https://lore.kernel.org/r/20220419225811.4127248-5-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Keoseong Park <keosung.park@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
51d1628fc4 scsi: ufs: Remove superfluous boolean conversions
Remove "? true : false" if the preceding expression yields a boolean or if
the result of the expression is assigned to a boolean since in these two
cases the "? true : false" part is superfluous.

Link: https://lore.kernel.org/r/20220419225811.4127248-4-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:02 -04:00
Bart Van Assche
59a57bb79e scsi: ufs: Declare ufshcd_wait_for_register() static
Declare this function static since it is only used inside the ufshcd.c
source file.

Link: https://lore.kernel.org/r/20220419225811.4127248-3-bvanassche@acm.org
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-04-25 23:23:01 -04:00