On Fri, Jun 2, 2023 at 12:01 AM <menglong8.dong@xxxxxxxxx> wrote: > > From: Menglong Dong <imagedong@xxxxxxxxxxx> > > According to the current kernel version, below is a statistics of the > function arguments count: > > argument count | FUNC_PROTO count > 7 | 367 > 8 | 196 > 9 | 71 > 10 | 43 > 11 | 22 > 12 | 10 > 13 | 15 > 14 | 4 > 15 | 0 > 16 | 1 > > It's hard to statisics the function count, so I use FUNC_PROTO in the btf > of vmlinux instead. The function with 16 arguments is ZSTD_buildCTable(), > which I think can be ignored. > > Therefore, let's make the maximum of function arguments count 14. It used > to be 12, but it seems that there is no harm to make it big enough. I think we're just fine at 12. People need to fix their code. ZSTD_buildCTable should be first in line. Passing arguments on the stack is not efficient from performance pov.
