[ Upstream commit 1197c5b2099f716b3de327437fb50900a0b936c9 ]
The myrb and myrs drivers use an odd way of implementing their sysfs files,
calling snprintf() with a fixed length of 32 bytes to print into a page
sized buffer. One of the strings is actually longer than 32 bytes, which
clang can warn about:
drivers/scsi/myrb.c:1906:10: error: 'snprintf' will always be truncated; specified size is 32, but format string expands to at least 34 [-Werror,-Wformat-truncation]
drivers/scsi/myrs.c:1089:10: error: 'snprintf' will always be truncated; specified size is 32, but format string expands to at least 34 [-Werror,-Wformat-truncation]
These could all be plain sprintf() without a length as the buffer is always
long enough. On the other hand, sysfs files should not be overly long
either, so just double the length to make sure the longest strings don't
get truncated here.
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Fixes: 081ff398c5 ("scsi: myrb: Add Mylex RAID controller (block interface)")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240326223825.4084412-8-arnd@kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This addresses the following sparse warning:
drivers/scsi/myrs.c:1532:5: warning: symbol 'myrs_host_reset' was not
declared. Should it be static?
drivers/scsi/myrs.c:1922:27: warning: symbol 'myrs_template' was not
declared. Should it be static?
drivers/scsi/myrs.c:2036:31: warning: symbol 'myrs_raid_functions' was
not declared. Should it be static?
drivers/scsi/myrs.c:2046:6: warning: symbol 'myrs_flush_cache' was not
declared. Should it be static?
Link: https://lore.kernel.org/r/20200915084008.2826835-1-yanaijie@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
No attempt has been made to document any of the demoted functions here.
Fixes the following W=1 kernel build warning(s):
drivers/scsi/myrs.c:94: warning: Function parameter or member 'cmd_blk' not described in 'myrs_reset_cmd'
drivers/scsi/myrs.c:105: warning: Function parameter or member 'cs' not described in 'myrs_qcmd'
drivers/scsi/myrs.c:105: warning: Function parameter or member 'cmd_blk' not described in 'myrs_qcmd'
drivers/scsi/myrs.c:130: warning: Function parameter or member 'cs' not described in 'myrs_exec_cmd'
drivers/scsi/myrs.c:130: warning: Function parameter or member 'cmd_blk' not described in 'myrs_exec_cmd'
drivers/scsi/myrs.c:149: warning: Function parameter or member 'cs' not described in 'myrs_report_progress'
drivers/scsi/myrs.c:149: warning: Function parameter or member 'ldev_num' not described in 'myrs_report_progress'
drivers/scsi/myrs.c:149: warning: Function parameter or member 'msg' not described in 'myrs_report_progress'
drivers/scsi/myrs.c:149: warning: Function parameter or member 'blocks' not described in 'myrs_report_progress'
drivers/scsi/myrs.c:149: warning: Function parameter or member 'size' not described in 'myrs_report_progress'
drivers/scsi/myrs.c:160: warning: Function parameter or member 'cs' not described in 'myrs_get_ctlr_info'
drivers/scsi/myrs.c:222: warning: Function parameter or member 'cs' not described in 'myrs_get_ldev_info'
drivers/scsi/myrs.c:222: warning: Function parameter or member 'ldev_num' not described in 'myrs_get_ldev_info'
drivers/scsi/myrs.c:222: warning: Function parameter or member 'ldev_info' not described in 'myrs_get_ldev_info'
drivers/scsi/myrs.c:310: warning: Function parameter or member 'cs' not described in 'myrs_get_pdev_info'
drivers/scsi/myrs.c:310: warning: Function parameter or member 'channel' not described in 'myrs_get_pdev_info'
drivers/scsi/myrs.c:310: warning: Function parameter or member 'target' not described in 'myrs_get_pdev_info'
drivers/scsi/myrs.c:310: warning: Function parameter or member 'lun' not described in 'myrs_get_pdev_info'
drivers/scsi/myrs.c:310: warning: Function parameter or member 'pdev_info' not described in 'myrs_get_pdev_info'
drivers/scsi/myrs.c:353: warning: Function parameter or member 'cs' not described in 'myrs_dev_op'
drivers/scsi/myrs.c:353: warning: Function parameter or member 'opcode' not described in 'myrs_dev_op'
drivers/scsi/myrs.c:353: warning: Function parameter or member 'opdev' not described in 'myrs_dev_op'
drivers/scsi/myrs.c:379: warning: Function parameter or member 'cs' not described in 'myrs_translate_pdev'
drivers/scsi/myrs.c:379: warning: Function parameter or member 'channel' not described in 'myrs_translate_pdev'
drivers/scsi/myrs.c:379: warning: Function parameter or member 'target' not described in 'myrs_translate_pdev'
drivers/scsi/myrs.c:379: warning: Function parameter or member 'lun' not described in 'myrs_translate_pdev'
drivers/scsi/myrs.c:379: warning: Function parameter or member 'devmap' not described in 'myrs_translate_pdev'
drivers/scsi/myrs.c:422: warning: Function parameter or member 'cs' not described in 'myrs_get_event'
drivers/scsi/myrs.c:422: warning: Function parameter or member 'event_num' not described in 'myrs_get_event'
drivers/scsi/myrs.c:422: warning: Function parameter or member 'event_buf' not described in 'myrs_get_event'
drivers/scsi/myrs.c:484: warning: Function parameter or member 'cs' not described in 'myrs_enable_mmio_mbox'
drivers/scsi/myrs.c:484: warning: Function parameter or member 'enable_mbox_fn' not described in 'myrs_enable_mmio_mbox'
drivers/scsi/myrs.c:584: warning: Function parameter or member 'cs' not described in 'myrs_get_config'
drivers/scsi/myrs.c:688: warning: cannot understand function prototype: 'struct '
drivers/scsi/myrs.c:1967: warning: Function parameter or member 'dev' not described in 'myrs_is_raid'
drivers/scsi/myrs.c:1980: warning: Function parameter or member 'dev' not described in 'myrs_get_resync'
drivers/scsi/myrs.c:2005: warning: Function parameter or member 'dev' not described in 'myrs_get_state'
drivers/scsi/myrs.c:2343: warning: bad line: the Error Status Register when the driver performs the BIOS handshaking.
drivers/scsi/myrs.c:2344: warning: bad line: It returns true for fatal errors and false otherwise.
drivers/scsi/myrs.c:2349: warning: Function parameter or member 'cs' not described in 'myrs_err_status'
drivers/scsi/myrs.c:2349: warning: Function parameter or member 'status' not described in 'myrs_err_status'
drivers/scsi/myrs.c:2349: warning: Function parameter or member 'parm0' not described in 'myrs_err_status'
drivers/scsi/myrs.c:2349: warning: Function parameter or member 'parm1' not described in 'myrs_err_status'
Link: https://lore.kernel.org/r/20200713080001.128044-16-lee.jones@linaro.org
Cc: Hannes Reinecke <hare@kernel.org>
Cc: Linux GmbH <hare@suse.com>
Cc: "Leonard N. Zubkoff" <lnz@dandelion.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
drivers/scsi/myrs.c: In function 'myrs_log_event':
drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
struct scsi_sense_hdr sshdr;
If ev->ev_code is not 0x1C, sshdr.sense_key may be used uninitialized. Fix
this by initializing variable 'sshdr' to 0.
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Putting a 1024 byte data structure on the stack is generally a bad idea.
On 32-bit systems, it also triggers a compile-time warning when building
with -Og:
drivers/scsi/myrs.c: In function 'myrs_get_ctlr_info':
drivers/scsi/myrs.c:212:1: error: the frame size of 1028 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
We only really need three members of the structure, so just read them
manually here instead of copying the entire structure.
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If both processors are absent then it's supposed to print that, but
instead we print that just the second processor is absent.
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The || was supposed to be |. The original code just sets ->result to 1.
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller (SCSI interface)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For 32 bit versions we have to be careful about divisions of 64 bit
quantities so use do_div() instead of a direct division. This fixes a
warning about _uldivmod being undefined in certain configurations
Fixes: 7726618639 ("scsi: myrs: Add Mylex RAID controller")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch adds support for the Mylex DAC960 RAID controller,
supporting the newer, SCSI-based interface. The driver is a
re-implementation of the original DAC960 driver.
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
