On Tue, Oct 18, 2022 at 02:52:43PM -0600, Jason A. Donenfeld wrote: > On Tue, Oct 18, 2022 at 11:40:54PM +0300, Andy Shevchenko wrote: > > On Tue, Oct 18, 2022 at 02:27:34PM -0600, Jason A. Donenfeld wrote: > > > On some platforms, `char` is unsigned, which makes casting -7 to char > > > overflow, which in turn makes the clamping operation bogus. Instead, > > > deal with an explicit `s8` type, so that the comparison is always > > > signed, and return an s8 result from the function as well. Note that > > > this function's result is assigned to a `short`, which is always signed. > > > > Why not to use short? See my patch I just sent. > > Trying to have the most minimal change here that doesn't rock the boat. > I'm not out to rewrite the driver. I don't know the original author's > rationales. This patch here is correct and will generate the same code > as before on architectures where it wasn't broken. > > However, if you want your "change the codegen" patch to be taken > seriously, you should probably send it to the wireless maintainers like > this one, and they can decide. Personally, I don't really care either > way. I have checked the code paths there and I found no evidence that short can't be used. That's why my patch. Okay, I will formally send it to the corresponding maintainers. But if they want, they can always download this thread using `b4` tool and at least comment on it. -- With Best Regards, Andy Shevchenko
