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

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Date:	Thu, 20 Mar 2014 04:48:10 -0700
From:	Joe Perches <joe@...ches.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	computersforpeace@...il.com, kernel@...inux.com,
	linux-mtd@...ts.infradead.org, dwmw2@...radead.org,
	angus.clark@...com
Subject: Re: [PATCH 1/5] mtd: st_spi_fsm: Remove useless consts from
 function arguments

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@...il.com>
> > > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > 
> > 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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