On Wed, 20 May 2015 11:29:55 -0700 Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote: > > I see no reason to spend to 4-8 bytes when spmi spec allows for maximum > > buffer size of 16. Do you suggest changing the API of read_cmd()? > > > > > Is that a maximum buffer size of 16 bytes? I'd prefer consistency > with the API that's being traced, that's all. Changing it to u8 > to save a few bytes probably doesn't make any difference if the > architecture passes function arguments in CPU registers which are > 32 or 64 bits wide or if the function can be inlined enough by > the compiler to where the len parameter is kept in a register. > I believe the worry is about wasting bytes in the ring buffer if not necessary. But we do that in other tracepoints, so it's really up to the maintainer. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
