linux-kernel - Re: [RFT PATCH v2 04/10] drivers: qcom: rpmh-rsc: Remove get_tcs_of

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Date:   Wed, 1 Apr 2020 13:48:33 +0530
From:   Maulik Shah <mkshah@...eaurora.org>
To:     Douglas Anderson <dianders@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     mka@...omium.org, Rajendra Nayak <rnayak@...eaurora.org>,
        evgreen@...omium.org, Lina Iyer <ilina@...eaurora.org>,
        swboyd@...omium.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFT PATCH v2 04/10] drivers: qcom: rpmh-rsc: Remove
 get_tcs_of_type() abstraction

Hi,

Tested-by: Maulik Shah <mkshah@...eaurora.org>

Thanks,
Maulik

On 3/12/2020 4:43 AM, Douglas Anderson wrote:
> The get_tcs_of_type() function doesn't provide any value.  It's not
> conceptually difficult to access a value in an array, even if that
> value is in a structure and we want a pointer to the value.  Having
> the function in there makes me feel like it's doing something fancier
> like looping or searching.  Remove it.
>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> Reviewed-by: Maulik Shah <mkshah@...eaurora.org>
> ---
>
> Changes in v2: None
>
>   drivers/soc/qcom/rpmh-rsc.c | 13 +++----------
>   1 file changed, 3 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
> index 799847b08038..c9f29cbd5ee5 100644
> --- a/drivers/soc/qcom/rpmh-rsc.c
> +++ b/drivers/soc/qcom/rpmh-rsc.c
> @@ -170,17 +170,10 @@ static bool tcs_is_free(struct rsc_drv *drv, int tcs_id)
>   	       read_tcs_reg(drv, RSC_DRV_STATUS, tcs_id);
>   }
>   
> -static struct tcs_group *get_tcs_of_type(struct rsc_drv *drv, int type)
> -{
> -	return &drv->tcs[type];
> -}
> -
>   static int tcs_invalidate(struct rsc_drv *drv, int type)
>   {
>   	int m;
> -	struct tcs_group *tcs;
> -
> -	tcs = get_tcs_of_type(drv, type);
> +	struct tcs_group *tcs = &drv->tcs[type];
>   
>   	spin_lock(&tcs->lock);
>   	if (bitmap_empty(tcs->slots, MAX_TCS_SLOTS)) {
> @@ -246,9 +239,9 @@ static struct tcs_group *get_tcs_for_msg(struct rsc_drv *drv,
>   	 * dedicated AMC, and therefore would invalidate the sleep and wake
>   	 * TCSes before making an active state request.
>   	 */
> -	tcs = get_tcs_of_type(drv, type);
> +	tcs = &drv->tcs[type];
>   	if (msg->state == RPMH_ACTIVE_ONLY_STATE && !tcs->num_tcs) {
> -		tcs = get_tcs_of_type(drv, WAKE_TCS);
> +		tcs = &drv->tcs[WAKE_TCS];
>   		if (tcs->num_tcs) {
>   			ret = rpmh_rsc_invalidate(drv);
>   			if (ret)

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