From c4e620eccbef76aa5564ebb295e23d6540e27215 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 5 Jun 2025 08:57:35 +0200 Subject: media: dvb-core: dmxdevfilter must always flush bufs Currently the buffers are being filled until full, which works fine for the transport stream, but not when reading sections, those have to be returned to userspace immediately, otherwise dvbv5-scan will just wait forever. Add a 'flush' argument to dvb_vb2_fill_buffer to indicate whether the buffer must be flushed or wait until it is full. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-core/dmxdev.c | 8 ++++---- drivers/media/dvb-core/dvb_vb2.c | 5 +++-- 2 files changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c index 8c6f5aafda1d..17184b367490 100644 --- a/drivers/media/dvb-core/dmxdev.c +++ b/drivers/media/dvb-core/dmxdev.c @@ -397,11 +397,11 @@ static int dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len, if (dvb_vb2_is_streaming(&dmxdevfilter->vb2_ctx)) { ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx, buffer1, buffer1_len, - buffer_flags); + buffer_flags, true); if (ret == buffer1_len) ret = dvb_vb2_fill_buffer(&dmxdevfilter->vb2_ctx, buffer2, buffer2_len, - buffer_flags); + buffer_flags, true); } else { ret = dvb_dmxdev_buffer_write(&dmxdevfilter->buffer, buffer1, buffer1_len); @@ -452,10 +452,10 @@ static int dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len, if (dvb_vb2_is_streaming(ctx)) { ret = dvb_vb2_fill_buffer(ctx, buffer1, buffer1_len, - buffer_flags); + buffer_flags, false); if (ret == buffer1_len) ret = dvb_vb2_fill_buffer(ctx, buffer2, buffer2_len, - buffer_flags); + buffer_flags, false); } else { if (buffer->error) { spin_unlock(&dmxdevfilter->dev->lock); diff --git a/drivers/media/dvb-core/dvb_vb2.c b/drivers/media/dvb-core/dvb_vb2.c index 29edaaff7a5c..7444bbc2f24d 100644 --- a/drivers/media/dvb-core/dvb_vb2.c +++ b/drivers/media/dvb-core/dvb_vb2.c @@ -249,7 +249,8 @@ int dvb_vb2_is_streaming(struct dvb_vb2_ctx *ctx) int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx, const unsigned char *src, int len, - enum dmx_buffer_flags *buffer_flags) + enum dmx_buffer_flags *buffer_flags, + bool flush) { unsigned long flags = 0; void *vbuf = NULL; @@ -306,7 +307,7 @@ int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx, } } - if (ctx->nonblocking && ctx->buf) { + if (flush && ctx->buf) { vb2_set_plane_payload(&ctx->buf->vb, 0, ll); vb2_buffer_done(&ctx->buf->vb, VB2_BUF_STATE_DONE); list_del(&ctx->buf->list); -- cgit v1.3