linux-next: build warnings from Linus' tree

From: Stephen Rothwell
Date: Sun Aug 19 2018 - 18:13:46 EST

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Hi Linus,

Today's linux-next build (powerpc ppc64_defconfig) produced these
warnings:

fs/cifs/cifssmb.c: In function 'CIFSSMBNegotiate':
fs/cifs/cifssmb.c:605:3: warning: 'strncpy' writing 16 bytes into a region of size 1 overflows the destination [-Wstringop-overflow=]
strncpy(pSMB->DialectsArray+count, protocols[i].name, 16);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'get_sensor_index_attr',
inlined from 'create_device_attrs' at drivers/hwmon/ibmpowernv.c:293:8,
inlined from 'ibmpowernv_probe' at drivers/hwmon/ibmpowernv.c:699:8:
drivers/hwmon/ibmpowernv.c:256:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/hfsplus/xattr.c: In function 'copy_name':
fs/hfsplus/xattr.c:416:3: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation]
strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/ext4/super.c: In function '__save_error_info':
fs/ext4/super.c:344:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(es->s_last_error_func, func, sizeof(es->s_last_error_func));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/ext4/super.c:349:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(es->s_first_error_func, func,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sizeof(es->s_first_error_func));
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/trace/define_trace.h:97,
from include/trace/events/writeback.h:762,
from fs/fs-writeback.c:98:
include/trace/events/writeback.h: In function 'perf_trace_writeback_work_class':
include/trace/events/writeback.h:223:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
wb->bdi->dev ? dev_name(wb->bdi->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:222:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_class':
include/trace/events/writeback.h:277:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:276:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_bdi_register':
include/trace/events/writeback.h:299:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:292:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_bdi_register,
^~~~~~~~~~~
include/trace/events/writeback.h:298:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_wbc_class':
include/trace/events/writeback.h:324:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:323:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_queue_io':
include/trace/events/writeback.h:375:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:360:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_queue_io,
^~~~~~~~~~~
include/trace/events/writeback.h:373:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_dirty_page':
include/trace/events/writeback.h:69:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:56:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_dirty_page,
^~~~~~~~~~~
include/trace/events/writeback.h:68:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_dirty_inode_template':
include/trace/events/writeback.h:99:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:95:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_write_inode_template':
include/trace/events/writeback.h:179:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:178:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_sb_inodes_requeue':
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'perf_trace_writeback_single_inode_template':
include/trace/events/writeback.h:660:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/perf.h:66:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:659:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
In file included from include/trace/define_trace.h:96,
from include/trace/events/writeback.h:762,
from fs/fs-writeback.c:98:
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_dirty_page':
include/trace/events/writeback.h:69:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:56:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_dirty_page,
^~~~~~~~~~~
include/trace/events/writeback.h:68:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_dirty_inode_template':
include/trace/events/writeback.h:99:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
bdi->dev ? dev_name(bdi->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:95:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_write_inode_template':
include/trace/events/writeback.h:179:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:178:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_work_class':
include/trace/events/writeback.h:223:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
wb->bdi->dev ? dev_name(wb->bdi->dev) : "(unknown)", 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:222:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_class':
include/trace/events/writeback.h:277:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:276:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_bdi_register':
include/trace/events/writeback.h:299:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:292:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_bdi_register,
^~~~~~~~~~~
include/trace/events/writeback.h:298:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_wbc_class':
include/trace/events/writeback.h:324:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:323:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_queue_io':
include/trace/events/writeback.h:375:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:360:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_queue_io,
^~~~~~~~~~~
include/trace/events/writeback.h:373:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_sb_inodes_requeue':
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h:586:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/trace_events.h:78:9: note: in expansion of macro 'PARAMS'
PARAMS(assign), \
^~~~~~
include/trace/events/writeback.h:572:1: note: in expansion of macro 'TRACE_EVENT'
TRACE_EVENT(writeback_sb_inodes_requeue,
^~~~~~~~~~~
include/trace/events/writeback.h:585:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
include/trace/events/writeback.h: In function 'trace_event_raw_event_writeback_single_inode_template':
include/trace/events/writeback.h:660:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
strncpy(__entry->name,
^~~~~~~~~~~~~~~~~~~~~~
dev_name(inode_to_bdi(inode)->dev), 32);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/trace/trace_events.h:720:4: note: in definition of macro 'DECLARE_EVENT_CLASS'
{ assign; } \
^~~~~~
include/trace/events/writeback.h:659:2: note: in expansion of macro 'TP_fast_assign'
TP_fast_assign(
^~~~~~~~~~~~~~
In function 'i40e_ptp_create_clock',
inlined from 'i40e_ptp_init' at drivers/net/ethernet/intel/i40e/i40e_ptp.c:755:8:
drivers/net/ethernet/intel/i40e/i40e_ptp.c:697:2: warning: 'strncpy' specified bound 16 equals destination size [-Wstringop-truncation]
strncpy(pf->ptp_caps.name, i40e_driver_name, sizeof(pf->ptp_caps.name));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_mr.c: In function 'qlafx00_fx_disc':
drivers/scsi/qla2xxx/qla_mr.c:1882:4: warning: 'strncpy' output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation]
strncpy(phost_info->nodename,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
p_sysid->nodename, NODENAME_LENGTH);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_mr.c:1886:4: warning: 'strncpy' output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation]
strncpy(phost_info->release,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
p_sysid->release, RELEASE_LENGTH);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_mr.c:1888:4: warning: 'strncpy' output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation]
strncpy(phost_info->version,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
p_sysid->version, VERSION_LENGTH);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_mr.c:1890:4: warning: 'strncpy' output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation]
strncpy(phost_info->machine,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
p_sysid->machine, MACHINE_LENGTH);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_mr.c:1892:4: warning: 'strncpy' output may be truncated copying 64 bytes from a string of length 64 [-Wstringop-truncation]
strncpy(phost_info->domainname,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
p_sysid->domainname, DOMNAME_LENGTH);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'ibmvfc_gather_partition_info',
inlined from 'ibmvfc_npiv_login' at drivers/scsi/ibmvscsi/ibmvfc.c:4098:2:
drivers/scsi/ibmvscsi/ibmvfc.c:1156:3: warning: 'strncpy' specified bound 97 equals destination size [-Wstringop-truncation]
strncpy(vhost->partition_name, name, sizeof(vhost->partition_name));
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'ibmvfc_set_login_info',
inlined from 'ibmvfc_npiv_login' at drivers/scsi/ibmvscsi/ibmvfc.c:4099:2:
drivers/scsi/ibmvscsi/ibmvfc.c:1194:2: warning: 'strncpy' specified bound 256 equals destination size [-Wstringop-truncation]
strncpy(login_info->device_name,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dev_name(&vhost->host->shost_gendev), IBMVFC_MAX_NAME);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1199:2: warning: 'strncpy' specified bound 256 equals destination size [-Wstringop-truncation]
strncpy(login_info->drc_name, location, IBMVFC_MAX_NAME);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Presumably caused by my update to gcc 8.2.0.

--
Cheers,
Stephen Rothwell

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