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Date: Sun, 19 Nov 2023 04:18:47 +0800
From: kernel test robot <lkp@...el.com>
To: Sreekanth Reddy <sreekanth.reddy@...gotech.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Christoph Hellwig <hch@....de>, Hannes Reinecke <hare@...e.de>
Subject: drivers/scsi/mpt3sas/mpt3sas_base.c:257:57: warning: '%s' directive
output may be truncated writing up to 31 bytes into a region of size 15
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 05aa69b096a089dc85391e36ccdce76961694e22
commit: c84b06a48c4d8ac8270624453132f3fa1a4a0f9d mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs
date: 8 years ago
config: x86_64-randconfig-r021-20230729 (https://download.01.org/0day-ci/archive/20231119/202311190448.wkvrT5iZ-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231119/202311190448.wkvrT5iZ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311190448.wkvrT5iZ-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/linux/kobject.h:21,
from include/linux/module.h:17,
from drivers/scsi/mpt3sas/mpt3sas_base.c:47:
include/linux/sysfs.h: In function 'sysfs_get_dirent':
include/linux/sysfs.h:496:44: warning: pointer targets in passing argument 2 of 'kernfs_find_and_get' differ in signedness [-Wpointer-sign]
496 | return kernfs_find_and_get(parent, name);
| ^~~~
| |
| const unsigned char *
In file included from include/linux/sysfs.h:15:
include/linux/kernfs.h:428:57: note: expected 'const char *' but argument is of type 'const unsigned char *'
428 | kernfs_find_and_get(struct kernfs_node *kn, const char *name)
| ~~~~~~~~~~~~^~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_display_event_data':
drivers/scsi/mpt3sas/mpt3sas_base.c:610:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
610 | if (event_data->DiscoveryStatus)
| ^~
In file included from include/linux/kernel.h:13,
from drivers/scsi/mpt3sas/mpt3sas_base.c:46:
include/linux/printk.h:259:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
259 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:613:25: note: in expansion of macro 'pr_info'
613 | pr_info("\n");
| ^~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: At top level:
drivers/scsi/mpt3sas/mpt3sas_base.c:2013:1: warning: no previous declaration for 'mpt3sas_base_unmap_resources' [-Wmissing-declarations]
2013 | mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_display_ioc_capabilities':
drivers/scsi/mpt3sas/mpt3sas_base.c:2789:36: warning: pointer targets in passing argument 2 of 'strncpy' differ in signedness [-Wpointer-sign]
2789 | strncpy(desc, ioc->manu_pg0.ChipName, 16);
| ~~~~~~~~~~~~~^~~~~~~~~
| |
| U8 * {aka unsigned char *}
In file included from include/linux/dynamic_debug.h:111,
from include/linux/printk.h:277:
include/linux/string.h:23:30: note: expected 'const char *' but argument is of type 'U8 *' {aka 'unsigned char *'}
23 | extern char * strncpy(char *,const char *, __kernel_size_t);
| ^~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_handshake_req_reply_wait':
drivers/scsi/mpt3sas/mpt3sas_base.c:3819:13: warning: variable 'dummy' set but not used [-Wunused-but-set-variable]
3819 | u16 dummy;
| ^~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function 'mpt3sas_base_sas_iounit_control':
drivers/scsi/mpt3sas/mpt3sas_base.c:3944:23: warning: variable 'timeleft' set but not used [-Wunused-but-set-variable]
3944 | unsigned long timeleft;
| ^~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function 'mpt3sas_base_scsi_enclosure_processor':
drivers/scsi/mpt3sas/mpt3sas_base.c:4048:23: warning: variable 'timeleft' set but not used [-Wunused-but-set-variable]
4048 | unsigned long timeleft;
| ^~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_send_port_enable':
drivers/scsi/mpt3sas/mpt3sas_base.c:4490:23: warning: variable 'timeleft' set but not used [-Wunused-but-set-variable]
4490 | unsigned long timeleft;
| ^~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_event_notification':
drivers/scsi/mpt3sas/mpt3sas_base.c:4671:23: warning: variable 'timeleft' set but not used [-Wunused-but-set-variable]
4671 | unsigned long timeleft;
| ^~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function '_base_display_OEMs_branding':
drivers/scsi/mpt3sas/mpt3sas_base.c:2530:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
2530 | switch (ioc->pdev->subsystem_device) {
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2549:17: note: here
2549 | case MPI2_MFGPAGE_DEVID_SAS2308_2:
| ^~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2550:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
2550 | switch (ioc->pdev->subsystem_device) {
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2585:17: note: here
2585 | case MPI25_MFGPAGE_DEVID_SAS3008:
| ^~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2728:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
2728 | switch (ioc->pdev->subsystem_device) {
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2739:17: note: here
2739 | case MPI2_MFGPAGE_DEVID_SAS2308_2:
| ^~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2740:25: warning: this statement may fall through [-Wimplicit-fallthrough=]
2740 | switch (ioc->pdev->subsystem_device) {
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:2763:17: note: here
2763 | default:
| ^~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function 'mpt3sas_base_start_watchdog':
>> drivers/scsi/mpt3sas/mpt3sas_base.c:257:57: warning: '%s' directive output may be truncated writing up to 31 bytes into a region of size 15 [-Wformat-truncation=]
257 | sizeof(ioc->fault_reset_work_q_name), "poll_%s%d_status",
| ^~
drivers/scsi/mpt3sas/mpt3sas_base.c:257:51: note: directive argument in the range [0, 255]
257 | sizeof(ioc->fault_reset_work_q_name), "poll_%s%d_status",
| ^~~~~~~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:256:9: note: 'snprintf' output between 14 and 47 bytes into a destination of size 20
256 | snprintf(ioc->fault_reset_work_q_name,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
257 | sizeof(ioc->fault_reset_work_q_name), "poll_%s%d_status",
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
258 | ioc->driver_name, ioc->id);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function 'mpt3sas_base_map_resources':
drivers/scsi/mpt3sas/mpt3sas_base.c:1841:61: warning: '%d' directive output may be truncated writing between 1 and 3 bytes into a region of size between 1 and 32 [-Wformat-truncation=]
1841 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
| ^~
In function '_base_request_irq',
inlined from '_base_enable_msix' at drivers/scsi/mpt3sas/mpt3sas_base.c:2003:6,
inlined from 'mpt3sas_base_map_resources' at drivers/scsi/mpt3sas/mpt3sas_base.c:2124:6:
drivers/scsi/mpt3sas/mpt3sas_base.c:1841:58: note: directive argument in the range [0, 255]
1841 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
| ^~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:1841:17: note: 'snprintf' output between 2 and 35 bytes into a destination of size 32
1841 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1842 | ioc->driver_name, ioc->id);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c: In function 'mpt3sas_base_map_resources':
drivers/scsi/mpt3sas/mpt3sas_base.c:1838:61: warning: '%d' directive output may be truncated writing between 1 and 3 bytes into a region of size between 1 and 32 [-Wformat-truncation=]
1838 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
| ^~
In function '_base_request_irq',
inlined from '_base_enable_msix' at drivers/scsi/mpt3sas/mpt3sas_base.c:2003:6,
inlined from 'mpt3sas_base_map_resources' at drivers/scsi/mpt3sas/mpt3sas_base.c:2124:6:
drivers/scsi/mpt3sas/mpt3sas_base.c:1838:58: note: directive argument in the range [0, 255]
1838 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
| ^~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:1838:17: note: 'snprintf' output between 8 and 41 bytes into a destination of size 32
1838 | snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1839 | ioc->driver_name, ioc->id, index);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/mpt3sas/mpt3sas_base.c:104: warning: Function parameter or member 'val' not described in '_scsih_set_fwfault_debug'
drivers/scsi/mpt3sas/mpt3sas_base.c:104: warning: Function parameter or member 'kp' not described in '_scsih_set_fwfault_debug'
drivers/scsi/mpt3sas/mpt3sas_base.c:928: warning: Excess function parameter 'r' description in '_base_interrupt'
drivers/scsi/mpt3sas/mpt3sas_base.c:2397: warning: Excess function parameter 'ioc' description in '_base_writeq'
drivers/scsi/mpt3sas/mpt3sas_base.c:3594: warning: Function parameter or member 'ioc' not described in '_base_wait_on_iocstate'
drivers/scsi/mpt3sas/mpt3sas_base.c:3628: warning: expecting prototype for _base_wait_for_doorbell_int(). Prototype was for _base_diag_reset() instead
drivers/scsi/mpt3sas/mpt3sas_base.c:4138: warning: Function parameter or member 'port' not described in '_base_get_port_facts'
drivers/scsi/mpt3sas/mpt3sas_base.c:4730: warning: Function parameter or member 'event_type' not described in 'mpt3sas_base_validate_event_type'
drivers/scsi/mpt3sas/mpt3sas_base.c:4730: warning: Excess function parameter 'event' description in 'mpt3sas_base_validate_event_type'
vim +257 drivers/scsi/mpt3sas/mpt3sas_base.c
237
238 /**
239 * mpt3sas_base_start_watchdog - start the fault_reset_work_q
240 * @ioc: per adapter object
241 * Context: sleep.
242 *
243 * Return nothing.
244 */
245 void
246 mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc)
247 {
248 unsigned long flags;
249
250 if (ioc->fault_reset_work_q)
251 return;
252
253 /* initialize fault polling */
254
255 INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
256 snprintf(ioc->fault_reset_work_q_name,
> 257 sizeof(ioc->fault_reset_work_q_name), "poll_%s%d_status",
258 ioc->driver_name, ioc->id);
259 ioc->fault_reset_work_q =
260 create_singlethread_workqueue(ioc->fault_reset_work_q_name);
261 if (!ioc->fault_reset_work_q) {
262 pr_err(MPT3SAS_FMT "%s: failed (line=%d)\n",
263 ioc->name, __func__, __LINE__);
264 return;
265 }
266 spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
267 if (ioc->fault_reset_work_q)
268 queue_delayed_work(ioc->fault_reset_work_q,
269 &ioc->fault_reset_work,
270 msecs_to_jiffies(FAULT_POLLING_INTERVAL));
271 spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
272 }
273
--
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