Do not declare the structure as aligned. The start/end-packed.h headers affects structures without specification only using MingW or Microsoft compilers. For other platform SPICE_ATTR_PACKED macro should be used. This way the definition are the same for all compiler. This structure is used in a lot of QXL structures which are not aligned causing to have an aligned structure to be potentially unaligned. As this structure has no holes this change does not make any size change using any compiler. The change will only change the alignment from 4/8 to 1. This could affect structures containing this union however beside packed structure in qxl_dev.h (which are not affected) there are no other usages affecting ABI by spice-gtk, Qemu or spice-server. Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx> --- Changes since v1: - update commit message --- spice/qxl_dev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/spice/qxl_dev.h b/spice/qxl_dev.h index a9cc4f4..659f930 100644 --- a/spice/qxl_dev.h +++ b/spice/qxl_dev.h @@ -275,7 +275,7 @@ typedef struct SPICE_ATTR_ALIGNED(4) SPICE_ATTR_PACKED QXLRam { } QXLRam; -typedef union QXLReleaseInfo { +typedef union SPICE_ATTR_PACKED QXLReleaseInfo { uint64_t id; // in uint64_t next; // out } QXLReleaseInfo; -- 2.20.1 _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel