Re: [PATCH] procfs: Remove unnecessary cast in alloc codes

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On Thu, Apr 23, 2015 at 11:11 AM, Firo Yang <firogm@xxxxxxxxx> wrote:
> Remove unnecessary cast of allocation return value in
> fs/proc/inode.c::proc_alloc_inode().
>
> Signed-off-by: Firo Yang <firogm@xxxxxxxxx>
> ---
>  fs/proc/inode.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/proc/inode.c b/fs/proc/inode.c
> index 7697b66..08a7235 100644
> --- a/fs/proc/inode.c
> +++ b/fs/proc/inode.c
> @@ -58,7 +58,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
>         struct proc_inode *ei;
>         struct inode *inode;
>
> -       ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, GFP_KERNEL);
> +       ei = kmem_cache_alloc(proc_inode_cachep, GFP_KERNEL);

It is not really unnecessary for at lest two reasons.
- If the type of "ei" changes gcc will emit a warning
- It is grep friendly

At the end of the day it is a matter of taste. :-)

-- 
Thanks,
//richard
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