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Subject: Re: [PATCH] net/bluetooth: remove __get_channel/dir
From:   Marcel Holtmann <marcel@holtmann.org>
In-Reply-To: <1579596583-258090-1-git-send-email-alex.shi@linux.alibaba.com>
Date:   Tue, 21 Jan 2020 17:19:14 +0100
Cc:     Johan Hedberg <johan.hedberg@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        "Gustavo A. R. Silva" <gustavo@embeddedor.com>,
        linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
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Message-Id: <8CA3EF63-F688-48B2-A21D-16FDBC809EDE@holtmann.org>
References: <1579596583-258090-1-git-send-email-alex.shi@linux.alibaba.com>
To:     Alex Shi <alex.shi@linux.alibaba.com>
Sender: linux-bluetooth-owner@vger.kernel.org
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Hi Alex,

> These 2 macros are never used from first git commit Linux-2.6.12-rc2. So
> better to remove them.
> 
> Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
> Cc: Marcel Holtmann <marcel@holtmann.org> 
> Cc: Johan Hedberg <johan.hedberg@gmail.com> 
> Cc: "David S. Miller" <davem@davemloft.net> 
> Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com> 
> Cc: linux-bluetooth@vger.kernel.org 
> Cc: netdev@vger.kernel.org 
> Cc: linux-kernel@vger.kernel.org 
> ---
> net/bluetooth/rfcomm/core.c | 2 --
> 1 file changed, 2 deletions(-)
> 
> diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
> index 3a9e9d9670be..825adff79f13 100644
> --- a/net/bluetooth/rfcomm/core.c
> +++ b/net/bluetooth/rfcomm/core.c
> @@ -73,8 +73,6 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
> 
> /* ---- RFCOMM frame parsing macros ---- */
> #define __get_dlci(b)     ((b & 0xfc) >> 2)
> -#define __get_channel(b)  ((b & 0xf8) >> 3)
> -#define __get_dir(b)      ((b & 0x04) >> 2)
> #define __get_type(b)     ((b & 0xef))
> 
> #define __test_ea(b)      ((b & 0x01))

it seems we are also not using __dir macro either.

Regards

Marcel