linux-kernel - Re: [PATCH] soundwire: qcom: Constify static structs

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Date:   Mon, 22 Jun 2020 17:28:37 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Rikard Falkeborn <rikard.falkeborn@...il.com>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        agross@...nel.org, bjorn.andersson@...aro.org,
        sanyog.r.kale@...el.com, pierre-louis.bossart@...ux.intel.com,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] soundwire: qcom: Constify static structs

On 10-06-20, 01:00, Rikard Falkeborn wrote:
> qcom_swrm_port_ops and qcom_swrm_ops are not modified and can be made
> const to allow the compiler to put them in read-only memory.
> 
> Before:
>    text    data     bss     dec     hex filename
>   18266    3056     256   21578    544a drivers/soundwire/qcom.o
> 
> After:
>    text    data     bss     dec     hex filename
>   18426    2896     256   21578    544a drivers/soundwire/qcom.o

Applied, thanks

> 
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
> ---
>  drivers/soundwire/qcom.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
> index a1c2a44a3b4d..915c2cf0c274 100644
> --- a/drivers/soundwire/qcom.c
> +++ b/drivers/soundwire/qcom.c
> @@ -406,13 +406,13 @@ static int qcom_swrm_port_enable(struct sdw_bus *bus,
>  	return ctrl->reg_write(ctrl, reg, val);
>  }
>  
> -static struct sdw_master_port_ops qcom_swrm_port_ops = {
> +static const struct sdw_master_port_ops qcom_swrm_port_ops = {
>  	.dpn_set_port_params = qcom_swrm_port_params,
>  	.dpn_set_port_transport_params = qcom_swrm_transport_params,
>  	.dpn_port_enable_ch = qcom_swrm_port_enable,
>  };
>  
> -static struct sdw_master_ops qcom_swrm_ops = {
> +static const struct sdw_master_ops qcom_swrm_ops = {
>  	.xfer_msg = qcom_swrm_xfer_msg,
>  	.pre_bank_switch = qcom_swrm_pre_bank_switch,
>  };
> -- 
> 2.27.0

-- 
~Vinod