diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-driver.h')
-rw-r--r-- | drivers/media/video/cx18/cx18-driver.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index ff34262..930bab6 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -288,6 +288,18 @@ struct cx18_options { #define CX18_SLICED_TYPE_WSS_625 (5) #define CX18_SLICED_TYPE_VPS (7) +/** + * list_entry_is_past_end - check if a previous loop cursor is off list end + * @pos: the type * previously used as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Check if the entry's list_head is the head of the list, thus it's not a + * real entry but was the loop cursor that walked past the end + */ +#define list_entry_is_past_end(pos, head, member) \ + (&pos->member == (head)) + struct cx18_buffer { struct list_head list; dma_addr_t dma_handle; |