From: Stefan Richter Date: Sat, 19 May 2007 10:29:37 +0000 (+0200) Subject: ieee1394: add comments in struct hpsb_packet X-Git-Tag: v2.6.23-rc1~1199^2~29 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=6552731a058a4facefd921b0b45a9a5392baa5ea;p=linux-2.6-omap-h63xx.git ieee1394: add comments in struct hpsb_packet to clarify who is supposed to set what Signed-off-by: Stefan Richter --- diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h index ad526523d0e..11fd324ee04 100644 --- a/drivers/ieee1394/ieee1394_core.h +++ b/drivers/ieee1394/ieee1394_core.h @@ -37,7 +37,7 @@ struct hpsb_packet { hpsb_unused, hpsb_queued, hpsb_pending, hpsb_complete } __attribute__((packed)) state; - /* These are core internal. */ + /* These are core-internal. */ signed char tlabel; signed char ack_code; unsigned char tcode; @@ -62,11 +62,15 @@ struct hpsb_packet { /* Store jiffies for implementing bus timeouts. */ unsigned long sendtime; - /* Sizes are in bytes. *data can be DMA-mapped. */ + /* Core-internal. */ size_t allocated_data_size; /* as allocated */ + + /* Sizes are in bytes. To be set by caller of hpsb_alloc_packet. */ size_t data_size; /* as filled in */ size_t header_size; /* as filled in, not counting the CRC */ - quadlet_t *data; + + /* Buffers */ + quadlet_t *data; /* can be DMA-mapped */ quadlet_t header[5]; quadlet_t embedded_data[0]; /* keep as last member */ };