From: Farhan Ali <[email protected]> The commit 198c0d1f9df8c4 s390x/css: check ccw address validity exposes an alignment issue in ccw bios.
According to PoP the CCW must be doubleword aligned. Let's fix this in the bios. Cc: [email protected] Signed-off-by: Farhan Ali <[email protected]> Reviewed-by: Halil Pasic <[email protected]> Reviewed-by: Eric Farman <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Message-Id: <3ed8b810b6592daee6a775037ce21f850e40647d.1503667215.git.al...@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <[email protected]> --- 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 f5b4549ea3..55eaeee4b6 100644 --- a/pc-bios/s390-ccw/cio.h +++ b/pc-bios/s390-ccw/cio.h @@ -133,7 +133,7 @@ struct ccw1 { __u8 flags; __u16 count; __u32 cda; -} __attribute__ ((packed)); +} __attribute__ ((packed, aligned(8))); #define CCW_FLAG_DC 0x80 #define CCW_FLAG_CC 0x40 -- 2.13.5
