linux-kernel - Re: [PATCH] dmaengine: Move dma_get_slave

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <9606747.CdPEmsmUAn@avalon>
Date:	Sat, 17 Jan 2015 12:15:46 +0200
From:	Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Vinod Koul <vinod.koul@...el.com>
Cc:	dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Antoine Ténart <antoine@...e-electrons.com>,
	Russell King <linux@....linux.org.uk>, lars@...afoo.de
Subject: Re: [PATCH] dmaengine: Move dma_get_slave_caps() implementation to dmaengine.c

Hi Vinod, Maxime,

On Wednesday 29 October 2014 00:30:58 Laurent Pinchart wrote:
> The function is too big to be a static inline.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>

Ping ? Could this patch get in v3.20 ?

> ---
>  drivers/dma/dmaengine.c   | 33 +++++++++++++++++++++++++++++++++
>  include/linux/dmaengine.h | 32 +-------------------------------
>  2 files changed, 34 insertions(+), 31 deletions(-)
> 
> diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
> index 300c8cd2786c..caa91abca2ee 100644
> --- a/drivers/dma/dmaengine.c
> +++ b/drivers/dma/dmaengine.c
> @@ -480,6 +480,39 @@ static void dma_channel_rebalance(void)
>  		}
>  }
> 
> +int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
> +{
> +	struct dma_device *device;
> +
> +	if (!chan || !caps)
> +		return -EINVAL;
> +
> +	device = chan->device;
> +
> +	/* check if the channel supports slave transactions */
> +	if (!test_bit(DMA_SLAVE, device->cap_mask.bits))
> +		return -ENXIO;
> +
> +	/*
> +	 * Check whether it reports it uses the generic slave
> +	 * capabilities, if not, that means it doesn't support any
> +	 * kind of slave capabilities reporting.
> +	 */
> +	if (!device->directions)
> +		return -ENXIO;
> +
> +	caps->src_addr_widths = device->src_addr_widths;
> +	caps->dst_addr_widths = device->dst_addr_widths;
> +	caps->directions = device->directions;
> +	caps->residue_granularity = device->residue_granularity;
> +
> +	caps->cmd_pause = !!device->device_pause;
> +	caps->cmd_terminate = !!device->device_terminate_all;
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(dma_get_slave_caps);
> +
>  static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
>  					  struct dma_device *dev,
>  					  dma_filter_fn fn, void *fn_param)
> diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
> index b01b7a7c581b..92e0ca01061c 100644
> --- a/include/linux/dmaengine.h
> +++ b/include/linux/dmaengine.h
> @@ -757,37 +757,7 @@ static inline struct dma_async_tx_descriptor
> *dmaengine_prep_dma_sg( src_sg, src_nents, flags);
>  }
> 
> -static inline int dma_get_slave_caps(struct dma_chan *chan, struct
> dma_slave_caps *caps) -{
> -	struct dma_device *device;
> -
> -	if (!chan || !caps)
> -		return -EINVAL;
> -
> -	device = chan->device;
> -
> -	/* check if the channel supports slave transactions */
> -	if (!test_bit(DMA_SLAVE, device->cap_mask.bits))
> -		return -ENXIO;
> -
> -	/*
> -	 * Check whether it reports it uses the generic slave
> -	 * capabilities, if not, that means it doesn't support any
> -	 * kind of slave capabilities reporting.
> -	 */
> -	if (!device->directions)
> -		return -ENXIO;
> -
> -	caps->src_addr_widths = device->src_addr_widths;
> -	caps->dst_addr_widths = device->dst_addr_widths;
> -	caps->directions = device->directions;
> -	caps->residue_granularity = device->residue_granularity;
> -
> -	caps->cmd_pause = !!device->device_pause;
> -	caps->cmd_terminate = !!device->device_terminate_all;
> -
> -	return 0;
> -}
> +int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps);
> 
>  static inline int dmaengine_terminate_all(struct dma_chan *chan)
>  {

-- 
Regards,

Laurent Pinchart

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/