linux-kernel - Re: [PATCH 1/2] Bluetooth: btintel: remove useless code in btintel_set_dsm_reset

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Date: Mon, 20 May 2024 07:12:09 +0200
From: Paul Menzel <pmenzel@...gen.mpg.de>
To: Su Hui <suhui@...china.com>
Cc: marcel@...tmann.org, luiz.dentz@...il.com, nathan@...nel.org,
 ndesaulniers@...gle.com, morbo@...gle.com, justinstitt@...gle.com,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 llvm@...ts.linux.dev, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/2] Bluetooth: btintel: remove useless code in
 btintel_set_dsm_reset_method

Dear Su,


Thank you for your patch. Some minor comments.


Am 20.05.24 um 04:16 schrieb Su Hui:
> Clang static checker(scan-build) warning:

Please add a space before (. Noting the version of scan build would also 
be nice.

> drivers/bluetooth/btintel.c:2537:14:
> Value stored to 'handle' during its initialization is never read.
> 
> No need to repeatedly assign values to 'handle'. Remove this useless
> code to save some space.

The plural “values” is misleading to me. Maybe just remove the sentence, 
and say:

Remove this unused assignment.

For the summary, “useless code” could also be more specific:

Bluetooth: btintel: Remove unused assignement in 
btintel_set_dsm_reset_method()

Maybe also add a Fixes: tag.

> Signed-off-by: Su Hui <suhui@...china.com>


Kind regards,

Paul


> ---
>   drivers/bluetooth/btintel.c | 2 --
>   1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
> index 0c855c3ee1c1..f1c101dc0c28 100644
> --- a/drivers/bluetooth/btintel.c
> +++ b/drivers/bluetooth/btintel.c
> @@ -2542,8 +2542,6 @@ static void btintel_set_dsm_reset_method(struct hci_dev *hdev,
>   		RESET_TYPE_VSEC
>   	};
>   
> -	handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
> -
>   	if (!handle) {
>   		bt_dev_dbg(hdev, "No support for bluetooth device in ACPI firmware");
>   		return;