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

From: Joe Perches
Date: Thu Mar 20 2014 - 07:48:28 EST


On Thu, 2014-03-20 at 11:41 +0000, Lee Jones wrote:
> On Thu, 20 Mar 2014, Joe Perches wrote:
>
> > On Thu, 2014-03-20 at 11:11 +0000, Lee Jones wrote:
> > > Reported-by: Brian Norris <computersforpeace@xxxxxxxxx>
> > > Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
> >
> > Why are these useless?
> >
> > Even if the object code produced is the same,
> > these serve as information to the human reader
> > about how the arguments are used.
>
> https://lkml.org/lkml/2014/3/20/69
>

>From that email:

suggestion:

const uint8_t *const buf => const uint8_t *buf
const uint32_t size => uint32_t size
const uint32_t offset => uint32_t offset

What was done:

-static int stfsm_write_fifo(struct stfsm *fsm,
- const uint32_t *buf, const uint32_t size)
+static int stfsm_write_fifo(struct stfsm *fsm, uint32_t *buf, uint32_t size)

Note the removal of the const from uint32_t *buf

Why?


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