With older gcc: In file included from drivers/usb/class/cdc-acm.c:63: include/linux/usb_cdc.h:117: field `bDetailData' has incomplete type Signed-off-by: Andrew Morton --- 25-akpm/include/linux/usb_cdc.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN include/linux/usb_cdc.h~usb_cdc-build-fix include/linux/usb_cdc.h --- 25/include/linux/usb_cdc.h~usb_cdc-build-fix 2005-03-24 03:35:15.000000000 -0800 +++ 25-akpm/include/linux/usb_cdc.h 2005-03-24 03:35:15.000000000 -0800 @@ -114,7 +114,7 @@ struct usb_cdc_mdlm_detail_desc { /* type is associated with mdlm_desc.bGUID */ __u8 bGuidDescriptorType; - __u8 bDetailData[]; + __u8 bDetailData[0]; } __attribute__ ((packed)); /*-------------------------------------------------------------------------*/ _