Re: [PATCH 1/5] mtd: st_spi_fsm: Remove useless consts from function arguments

[Brian Norris <computersforpeace@gmail.com>]

On Thu, Mar 20, 2014 at 05:44:45AM -0700, Joe Perches wrote:
> On Thu, 2014-03-20 at 05:41 -0700, Brian Norris wrote:
> > I also don't think that a function parameter is the right place to
> > mark const like this. Function arguments are always pass-by-value, so
> > this 'const' tells users (callers) nothing useful. It only provides
> > useless constraints on what the function can do with its copy of the
> > parameter.
> 
> Again, that's not useless information.

For local, pass-by-value function arguments (i.e., constant data, or
constant pointers to data), I respectfully disagree. (For "pointers to
constant data", I completely agree that the 'const' info is useful.)

> And as you've seen, just making these changes
> can be error prone.

Thank you for catching our mistake now. But I don't think that is
relevant; just because you caught an error doesn't mean that the change
(primarily for consistency's sake) should be avoided entirely.

Unless you have a more convincing argument, this code will remain as-is.

Regards,
Brian