linux-kernel - Re: [PATCH] wl1251: use skb

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Message-ID: <20140304142658.GK8766@mudshark.cambridge.arm.com>
Date:	Tue, 4 Mar 2014 14:26:58 +0000
From:	Will Deacon <will.deacon@....com>
To:	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
Cc:	"linville@...driver.com" <linville@...driver.com>,
	"pali.rohar@...il.com" <pali.rohar@...il.com>,
	"pavel@....cz" <pavel@....cz>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] wl1251: use skb_trim to make skb shorter

Hi Jonn,

On Sat, Mar 01, 2014 at 12:52:06PM +0000, Ivaylo Dimitrov wrote:
> the current code is directly setting skb->len, which is not correct and
> brings problems with HAVE_EFFICIENT_UNALIGNED_ACCESS enabled in config
> 
> Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
> ---

Can you pick this patch up please? It addresses a regression introduced in
the merge window (ARM started selecting HAVE_EFFICIENT_UNALIGNED_ACCESS).

Cheers,

Will

>  drivers/net/wireless/ti/wl1251/rx.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/ti/wl1251/rx.c b/drivers/net/wireless/ti/wl1251/rx.c
> index 123c4bb..cde0eaf 100644
> --- a/drivers/net/wireless/ti/wl1251/rx.c
> +++ b/drivers/net/wireless/ti/wl1251/rx.c
> @@ -180,7 +180,7 @@ static void wl1251_rx_body(struct wl1251 *wl,
>  	wl1251_mem_read(wl, rx_packet_ring_addr, rx_buffer, length);
>  
>  	/* The actual length doesn't include the target's alignment */
> -	skb->len = desc->length  - PLCP_HEADER_LENGTH;
> +	skb_trim(skb, desc->length - PLCP_HEADER_LENGTH);
>  
>  	fc = (u16 *)skb->data;
>  
> -- 
> 1.7.9.5
> 
> 
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