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Message-ID: <20240826082918.al7mt3v7rpfgazsv@thinkpad>
Date: Mon, 26 Aug 2024 13:59:18 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Kunwu Chan <kunwu.chan@...ux.dev>
Cc: gregkh@...uxfoundation.org, mhi@...ts.linux.dev,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kunwu Chan <chentao@...inos.cn>
Subject: Re: [PATCH] bus: mhi: host: make mhi_bus_type const

On Fri, Aug 23, 2024 at 11:11:28AM +0800, Kunwu Chan wrote:
> From: Kunwu Chan <chentao@...inos.cn>
> 
> Now that the driver core can properly handle constant struct bus_type,
> move the mhi_bus_type variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
> 
> Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Signed-off-by: Kunwu Chan <chentao@...inos.cn>

Applied to mhi-next!

- Mani

> ---
>  drivers/bus/mhi/host/init.c     | 2 +-
>  drivers/bus/mhi/host/internal.h | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c
> index ce7d2e62c2f1..a9b1f8beee7b 100644
> --- a/drivers/bus/mhi/host/init.c
> +++ b/drivers/bus/mhi/host/init.c
> @@ -1464,7 +1464,7 @@ static int mhi_match(struct device *dev, const struct device_driver *drv)
>  	return 0;
>  };
>  
> -struct bus_type mhi_bus_type = {
> +const struct bus_type mhi_bus_type = {
>  	.name = "mhi",
>  	.dev_name = "mhi",
>  	.match = mhi_match,
> diff --git a/drivers/bus/mhi/host/internal.h b/drivers/bus/mhi/host/internal.h
> index aaad40a07f69..d057e877932e 100644
> --- a/drivers/bus/mhi/host/internal.h
> +++ b/drivers/bus/mhi/host/internal.h
> @@ -9,7 +9,7 @@
>  
>  #include "../common.h"
>  
> -extern struct bus_type mhi_bus_type;
> +extern const struct bus_type mhi_bus_type;
>  
>  /* Host request register */
>  #define MHI_SOC_RESET_REQ_OFFSET			0xb0
> -- 
> 2.41.0
> 

-- 
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