linux-kernel - Re: [PATCH] staging: rtl8188eu: Removed a function and coded inline

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Date:   Mon, 20 Aug 2018 21:33:04 +0530
From:   Bhaskar Singh <bhaskar.kernel@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: rtl8188eu: Removed a function and coded inline

On Mon, Aug 20, 2018 at 12:35:46PM +0300, Dan Carpenter wrote:
> On Sun, Aug 19, 2018 at 12:36:40AM +0530, Bhaskar Singh wrote:
> > This patch removed function named rtw_malloc2d.
> > 
> > I removed this function because this function is used exactly once and
> > function call have some overhead also.
> > 
> > Maybe this will improve code runtime slightly.
> > 
> > Signed-off-by: Bhaskar Singh <bhaskar.kernel@...il.com>
> > ---
> >  drivers/staging/rtl8188eu/core/rtw_efuse.c        | 10 +++++++++-
> >  drivers/staging/rtl8188eu/include/osdep_service.h |  2 --
> >  drivers/staging/rtl8188eu/os_dep/osdep_service.c  | 14 --------------
> >  3 files changed, 9 insertions(+), 17 deletions(-)
> > 
> > diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
> > index 0fd306a808c4..befc99c197b1 100644
> > --- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
> > +++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
> > @@ -86,12 +86,20 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8  *pbuf)
> >  	u16	**eFuseWord = NULL;
> >  	u16	efuse_utilized = 0;
> >  	u8 u1temp = 0;
> > +	int z;
> 
> z is unusual name for an iterator.  Does it stand for something?  Just
> use "int i;".
> 
> > +	void **a = NULL;
> 
> What does "a" mean in this context?  Maybe just say "void **tmp;"
> 
> >  
> >  	efuseTbl = kzalloc(EFUSE_MAP_LEN_88E, GFP_KERNEL);
> >  	if (!efuseTbl)
> >  		return;
> >  
> > -	eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16));
> > +	a = kzalloc(EFUSE_MAX_SECTION_88E * sizeof(void *) + EFUSE_MAX_SECTION_88E * EFUSE_MAX_WORD_UNIT * sizeof(u16), GFP_KERNEL);
> > +	if (!a)
> > +		goto out;
> 
> 
> You can simplify the math a bit:
> 
> 	tmp = kzalloc(EFUSE_MAX_SECTION_88E * (sizeof(void *) + EFUSE_MAX_WORD_UNIT * sizeof(u16)), GFP_KERNEL);
> 
> Then if it fails:
> 
> 	if (!tmp)
> 		goto eFuseWord_failed;
> 
> 
> regards,
> dan carpenter
>

Here I have modified 3 files but after seeing comments of Dan Carpenter
I have edited one file. What to do with those 2 files which I haven't
modified while sending 2nd version of this patch because all three file
combinedly making one logical change.
I apologies, if this is not the right place for asking this type of questions