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

[Dan Carpenter]

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.ker...@gmail.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