From: Thomas Huth <th...@redhat.com>
I've run into a compilation error today with the current version of GCC 8:
In file included from s390-ccw.h:49,
from main.c:12:
cio.h:128:1: error: alignment 1 of 'struct tpi_info' is less than 4
[-Werror=packed-not-aligned]
} __attribute__ ((packed));
^
cc1: all warnings being treated as errors
Since the struct tpi_info contains an element ("struct subchannel_id schid")
which is marked as aligned(4), we've got to mark the struct tpi_info as
aligned(4), too.
CC: qemu-sta...@nongnu.org
Signed-off-by: Thomas Huth <th...@redhat.com>
Message-Id: <1525774672-11913-1-git-send-email-th...@redhat.com>
Reviewed-by: Cornelia Huck <coh...@redhat.com>
Acked-by: Christian Borntraeger <borntrae...@de.ibm.com>
Signed-off-by: Cornelia Huck <coh...@redhat.com>
---
pc-bios/s390-ccw/cio.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pc-bios/s390-ccw/cio.h b/pc-bios/s390-ccw/cio.h
index 55eaeee4b6..1a0795f645 100644
--- a/pc-bios/s390-ccw/cio.h
+++ b/pc-bios/s390-ccw/cio.h
@@ -125,7 +125,7 @@ struct tpi_info {
__u32 reserved3 : 12;
__u32 int_type : 3;
__u32 reserved4 : 12;
-} __attribute__ ((packed));
+} __attribute__ ((packed, aligned(4)));
/* channel command word (type 1) */
struct ccw1 {
--
2.14.3
