Re: [PATCH v2 01/10] clk: Fix inconsistencies in usage of data types

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On 08/11, Rajendra Nayak wrote:
> index is of type u8 in all places except in clk_hw_get_parent_by_index()
> and return value of all round_rate functions is long except for
> clk_hw_round_rate(). Make them consistent with the rest of the places
> 
> Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
> ---
>  drivers/clk/clk.c            | 4 ++--
>  include/linux/clk-provider.h | 5 ++---
>  2 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 820a939..e768071 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -261,7 +261,7 @@ static struct clk_core *clk_core_get_parent_by_index(struct clk_core *core,
>  }
>  
>  struct clk_hw *
> -clk_hw_get_parent_by_index(const struct clk_hw *hw, unsigned int index)
> +clk_hw_get_parent_by_index(const struct clk_hw *hw, u8 index)

I guess this is ok, but u8 seems limiting for no reason and we
may want to expand the parent array at some point in the future
(although it would be a huge change). So I'd like to leave this
alone. Inconsistent as it is.

>  {
>  	struct clk_core *parent;
>  
> @@ -889,7 +889,7 @@ int __clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
>  }
>  EXPORT_SYMBOL_GPL(__clk_determine_rate);
>  
> -unsigned long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate)
> +long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate)
>  {
>  	int ret;
>  	struct clk_rate_request req;

This function should never return a negative value, so the return
type is unsigned.

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