This is an automatic generated email to let you know that the following patch were queued at the http://git.linuxtv.org/v4l-dvb.git tree:
Subject: V4L/DVB: V4L2: Replace loops for finding max buffers in VIDIOC_REQBUFS callbacks Author: Andreas Bombe <[email protected]> Date: Sun Mar 21 16:02:45 2010 -0300 Due to obvious copy and paste coding a number of video capture drivers which implement a limit on the buffer memory decremented the user supplied buffer count in a while loop until it reaches an acceptable value. This is a silly thing to do when the maximum value can be directly computed. Signed-off-by: Andreas Bombe <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/video/bt8xx/bttv-driver.c | 4 ++-- drivers/media/video/cx23885/cx23885-video.c | 4 ++-- drivers/media/video/cx88/cx88-video.c | 4 ++-- drivers/media/video/mx1_camera.c | 4 ++-- drivers/media/video/omap24xxcam.c | 4 ++-- drivers/media/video/pxa_camera.c | 4 ++-- drivers/media/video/s2255drv.c | 4 ++-- drivers/media/video/sh_mobile_ceu_camera.c | 4 ++-- drivers/media/video/vivi.c | 4 ++-- drivers/media/video/zr364xx.c | 4 ++-- drivers/staging/cx25821/cx25821-video.c | 4 ++-- 11 files changed, 22 insertions(+), 22 deletions(-) --- http://git.linuxtv.org/v4l-dvb.git?a=commitdiff;h=f7a6936428c11b8bd33e7c438236142fd20cbf8b diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index cb46e8f..79af895 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -1805,8 +1805,8 @@ buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) *size = fh->fmt->depth*fh->width*fh->height >> 3; if (0 == *count) *count = gbuffers; - while (*size * *count > gbuffers * gbufsize) - (*count)--; + if (*size * *count > gbuffers * gbufsize) + *count = (gbuffers * gbufsize) / *size; return 0; } diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 2d3ac8b..543b854 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -514,8 +514,8 @@ static int buffer_setup(struct videobuf_queue *q, unsigned int *count, *size = fh->fmt->depth*fh->width*fh->height >> 3; if (0 == *count) *count = 32; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; return 0; } diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c index 8e414f7..0a3849c 100644 --- a/drivers/media/video/cx88/cx88-video.c +++ b/drivers/media/video/cx88/cx88-video.c @@ -561,8 +561,8 @@ buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) *size = fh->fmt->depth*fh->width*fh->height >> 3; if (0 == *count) *count = 32; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; return 0; } diff --git a/drivers/media/video/mx1_camera.c b/drivers/media/video/mx1_camera.c index c167cc3..d07af13 100644 --- a/drivers/media/video/mx1_camera.c +++ b/drivers/media/video/mx1_camera.c @@ -140,8 +140,8 @@ static int mx1_videobuf_setup(struct videobuf_queue *vq, unsigned int *count, if (!*count) *count = 32; - while (*size * *count > MAX_VIDEO_MEM * 1024 * 1024) - (*count)--; + if (*size * *count > MAX_VIDEO_MEM * 1024 * 1024) + *count = (MAX_VIDEO_MEM * 1024 * 1024) / *size; dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size); diff --git a/drivers/media/video/omap24xxcam.c b/drivers/media/video/omap24xxcam.c index 7400eac..50df8ca 100644 --- a/drivers/media/video/omap24xxcam.c +++ b/drivers/media/video/omap24xxcam.c @@ -451,8 +451,8 @@ static int omap24xxcam_vbq_setup(struct videobuf_queue *vbq, unsigned int *cnt, *size = fh->pix.sizeimage; /* accessing fh->cam->capture_mem is ok, it's constant */ - while (*size * *cnt > fh->cam->capture_mem) - (*cnt)--; + if (*size * *cnt > fh->cam->capture_mem) + *cnt = fh->cam->capture_mem / *size; return 0; } diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index 322ac4e..520a35b 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -252,8 +252,8 @@ static int pxa_videobuf_setup(struct videobuf_queue *vq, unsigned int *count, if (0 == *count) *count = 32; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; return 0; } diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c index cd5b9c4..b4c545c 100644 --- a/drivers/media/video/s2255drv.c +++ b/drivers/media/video/s2255drv.c @@ -701,8 +701,8 @@ static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, if (0 == *count) *count = S2255_DEF_BUFS; - while (*size * (*count) > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; return 0; } diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index a504fa6..e8bab6e 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -212,8 +212,8 @@ static int sh_mobile_ceu_videobuf_setup(struct videobuf_queue *vq, *count = 2; if (pcdev->video_limit) { - while (PAGE_ALIGN(*size) * *count > pcdev->video_limit) - (*count)--; + if (PAGE_ALIGN(*size) * *count > pcdev->video_limit) + *count = pcdev->video_limit / PAGE_ALIGN(*size); } dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size); diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index cdbe703..5a736b8 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -749,8 +749,8 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size) if (0 == *count) *count = 32; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; dprintk(dev, 1, "%s, count=%d, size=%d\n", __func__, *count, *size); diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c index 3d4bac2..a82b5bd 100644 --- a/drivers/media/video/zr364xx.c +++ b/drivers/media/video/zr364xx.c @@ -376,8 +376,8 @@ static int buffer_setup(struct videobuf_queue *vq, unsigned int *count, if (*count == 0) *count = ZR364XX_DEF_BUFS; - while (*size * (*count) > ZR364XX_DEF_BUFS * 1024 * 1024) - (*count)--; + if (*size * *count > ZR364XX_DEF_BUFS * 1024 * 1024) + *count = (ZR364XX_DEF_BUFS * 1024 * 1024) / *size; return 0; } diff --git a/drivers/staging/cx25821/cx25821-video.c b/drivers/staging/cx25821/cx25821-video.c index 4efd660..9cfb93d 100644 --- a/drivers/staging/cx25821/cx25821-video.c +++ b/drivers/staging/cx25821/cx25821-video.c @@ -516,8 +516,8 @@ int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count, if (0 == *count) *count = 32; - while (*size * *count > vid_limit * 1024 * 1024) - (*count)--; + if (*size * *count > vid_limit * 1024 * 1024) + *count = (vid_limit * 1024 * 1024) / *size; return 0; } _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
