On 2/22/18 6:02 AM, Serhey Popovych wrote: > Now in iplink_parse() we use ->ifi_change and ->ifi_flags fields and > plan to use ->ifi_index with upcoming change. > > Saving, restoring and reinitializing individual fields is error prone: > using new field in iplink_parse() without updating callers in veth and > vxcan will overwrite main device ifinfomsg data. > > Since @struct ifinfomsg is small enough with known sizeof() compiler may > inline memcpy()/memset() with few load/store instructions. > > Signed-off-by: Serhey Popovych <serhe.popov...@gmail.com> > --- > ip/iplink_vxcan.c | 22 ++++++++-------------- > ip/link_veth.c | 22 ++++++++-------------- > 2 files changed, 16 insertions(+), 28 deletions(-)
I don't agree that this change has any benefit. Only the flags and change field are wanted; there is no need to save the entire struct,