linux-kernel - Re: [PATCH 03/10] Bluetooth: hci_uart: add support for word alignment

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Date:   Fri, 17 Mar 2017 16:25:38 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Mark Rutland <mark.rutland@....com>,
        linux-bluetooth@...r.kernel.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 03/10] Bluetooth: hci_uart: add support for word alignment

Hi!

> This will be used by Nokia's H4+ protocol, which
> uses 2-byte aligned packets.
> 
> Signed-off-by: Sebastian Reichel <sre@...nel.org>

Acked-by: Pavel Machek <pavel@....cz>

> --- a/drivers/bluetooth/hci_h4.c
> +++ b/drivers/bluetooth/hci_h4.c
> @@ -171,9 +171,20 @@ struct sk_buff *h4_recv_buf(struct hci_dev *hdev, struct sk_buff *skb,
>  			    const unsigned char *buffer, int count,
>  			    const struct h4_recv_pkt *pkts, int pkts_count)
>  {
> +	struct hci_uart *hu = hci_get_drvdata(hdev);
> +	uint8_t alignment = hu->alignment;

I'd do u8 here, too, for consistency with struct below (and becuase
uint8_t is somehow unusual in kernel).

> @@ -92,6 +92,9 @@ struct hci_uart {
>  
>  	unsigned int init_speed;
>  	unsigned int oper_speed;
> +
> +	u8			alignment;
> +	u8			padding;
>  };
>  

Thanks,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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