On Fri, Nov 18, 2022 at 01:12:32AM +0100, Andrew Lunn wrote: > > Does :1 really initialise the variable? Obviously not. > In "u32 enabled:1" it means > this is a 1 bit wide bit field. It seems odd that bool is somehow > special and :1 means something else. If you have a bunch of consecutive bool a:1; bool b:1; then GCC will squeeze them into the same byte. But if you have bool a; bool b; then they each take a byte with GCC. I have specified GCC because the size of bool types are a bit vague in the C standard. regards, dan carpenter
