#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED

#include <linux/dma-mapping.h>
#include <linux/firewire.h>

/**
 * struct iso_packets_buffer - manages a buffer for many packets
 * @iso_buffer: the memory containing the packets
 * @packets: an array, with each element pointing to one packet
 */
struct iso_packets_buffer {
	struct fw_iso_buffer iso_buffer;
	struct {
		void *buffer;
		unsigned int offset;
	} *packets;
};

int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
			    unsigned int count, unsigned int packet_size,
			    enum dma_data_direction direction);
void iso_packets_buffer_destroy(struct iso_packets_buffer *b,
				struct fw_unit *unit);

#endif
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<tr><th>author</th><td>Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;</td><td class='right'>2016-12-22 15:00:12 +0000</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-02-02 21:54:52 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/usb/usbaudio.h?h=nds-private-remove&amp;id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>3484ecbe0e9deb94afb0b9b6172d77e98eb72b94</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/usb/usbaudio.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>patch</a>)</td></tr>
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<div class='commit-subject'>crypto: qat - fix bar discovery for c62x</div><div class='commit-msg'>Some accelerators of the c62x series have only two bars.
This patch skips BAR0 if the accelerator does not have it.

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
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