diff options
| author | Daniel P. Berrangé <berrange@redhat.com> | 2019-03-29 11:11:04 +0000 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2019-04-03 11:19:57 +0200 |
| commit | 7357b2215978debf2fd17b525ba745d3c69272a3 (patch) | |
| tree | 2f9a51246730f130395d0cc8ff5fbdf7b2fc1093 | |
| parent | 5d45a332920d6dd5536ba5f886713f5a213f90bb (diff) | |
hw/s390x/3270-ccw: avoid taking address of fields in packed struct
Compiling with GCC 9 complains
hw/s390x/3270-ccw.c: In function ‘emulated_ccw_3270_cb’:
hw/s390x/3270-ccw.c:81:19: error: taking address of packed member of ‘struct SCHIB’ may result in an unaligned pointer value [-Werror=address-of-packed-member]
81 | SCSW *s = &sch->curr_status.scsw;
| ^~~~~~~~~~~~~~~~~~~~~~
This local variable is only present to save a little bit of
typing when setting the field later. Get rid of this to avoid
the warning about unaligned accesses.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190329111104.17223-15-berrange@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
| -rw-r--r-- | hw/s390x/3270-ccw.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/hw/s390x/3270-ccw.c b/hw/s390x/3270-ccw.c index 2c8d16ccf7..14882242c3 100644 --- a/hw/s390x/3270-ccw.c +++ b/hw/s390x/3270-ccw.c @@ -78,13 +78,13 @@ static int emulated_ccw_3270_cb(SubchDev *sch, CCW1 ccw) if (rc == -EIO) { /* I/O error, specific devices generate specific conditions */ - SCSW *s = &sch->curr_status.scsw; + SCHIB *schib = &sch->curr_status; sch->curr_status.scsw.dstat = SCSW_DSTAT_UNIT_CHECK; sch->sense_data[0] = 0x40; /* intervention-req */ - s->ctrl &= ~SCSW_ACTL_START_PEND; - s->ctrl &= ~SCSW_CTRL_MASK_STCTL; - s->ctrl |= SCSW_STCTL_PRIMARY | SCSW_STCTL_SECONDARY | + schib->scsw.ctrl &= ~SCSW_ACTL_START_PEND; + schib->scsw.ctrl &= ~SCSW_CTRL_MASK_STCTL; + schib->scsw.ctrl |= SCSW_STCTL_PRIMARY | SCSW_STCTL_SECONDARY | SCSW_STCTL_ALERT | SCSW_STCTL_STATUS_PEND; } |