From 576ed7b5696b9435e8e6a6ec0c57da1f19c7e469 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Fri, 16 Jan 2009 08:57:28 -0300 Subject: [PATCH] V4L/DVB (10367): gspca - spca561: Optimize the isoc scanning function. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/spca561.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c index 173c0c43fd1f..386aaec3e6e1 100644 --- a/drivers/media/video/gspca/spca561.c +++ b/drivers/media/video/gspca/spca561.c @@ -141,7 +141,6 @@ static const struct v4l2_pix_format sif_072a_mode[] = { #define SPCA561_OFFSET_WIN1GBAVE 14 #define SPCA561_OFFSET_FREQ 15 #define SPCA561_OFFSET_VSYNC 16 -#define SPCA561_OFFSET_DATA 1 #define SPCA561_INDEX_I2C_BASE 0x8800 #define SPCA561_SNAPBIT 0x20 #define SPCA561_SNAPCTRL 0x40 @@ -866,12 +865,11 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; - switch (data[0]) { /* sequence number */ + len--; + switch (*data++) { /* sequence number */ case 0: /* start of frame */ frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, data, 0); - data += SPCA561_OFFSET_DATA; - len -= SPCA561_OFFSET_DATA; if (data[1] & 0x10) { /* compressed bayer */ gspca_frame_add(gspca_dev, FIRST_PACKET, @@ -892,8 +890,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, case 0xff: /* drop (empty mpackets) */ return; } - data++; - len--; gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); } -- 2.20.1