Are there any downsides to passing structs by value in C, rather than passing a pointer?

Are there any downsides to passing structs by value in C, rather than passing a pointer?

c struct parameter-passing abi

c

Difference between passing array and array pointer into function in C

c arrays function parameter-passing space-efficiency

c

Passing an array as an argument to a function in C

c arrays function parameters parameter-passing

c

Why do we need to specify the column size when passing a 2D array as a parameter?

c arrays parameters multidimensional-array parameter-passing

c

Does ISO C allow aliasing of the argv[] pointers supplied to main()?

c parameter-passing language-lawyer alias c11

c