From 50510993e0452e0941fd03f63aa08256dd9c7fdc Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 5 May 2008 18:25:22 -0300 Subject: [PATCH] V4L/DVB (7856): cx18/: possible cleanups This patch contains the following possible cleanups: - cx18-i2c.c should #include "cx18-i2c.h" for getting the prototypes of it's global functions - make the following needlessly global functions static: - cx18-fileops.c:cx18_claim_stream() - cx18-fileops.c:cx18_release_stream() - cx18-queue.c:cx18_queue_move() - remove the following unused functions: - cx18-driver.c:cx18_waitq() - cx18-queue.c:cx18_buf_copy_from_user() Signed-off-by: Adrian Bunk Reviewed-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-driver.c | 10 ---------- drivers/media/video/cx18/cx18-driver.h | 3 --- drivers/media/video/cx18/cx18-fileops.c | 4 ++-- drivers/media/video/cx18/cx18-fileops.h | 9 --------- drivers/media/video/cx18/cx18-i2c.c | 1 + drivers/media/video/cx18/cx18-queue.c | 16 +++------------- drivers/media/video/cx18/cx18-queue.h | 4 ---- 7 files changed, 6 insertions(+), 41 deletions(-) diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 9453223a3dea..3e9979eff3e0 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -164,16 +164,6 @@ MODULE_LICENSE("GPL"); MODULE_VERSION(CX18_VERSION); -int cx18_waitq(wait_queue_head_t *waitq) -{ - DEFINE_WAIT(wait); - - prepare_to_wait(waitq, &wait, TASK_INTERRUPTIBLE); - schedule(); - finish_wait(waitq, &wait); - return signal_pending(current) ? -EINTR : 0; -} - /* Generic utility functions */ int cx18_msleep_timeout(unsigned int msecs, int intr) { diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 2ee939193bb7..a2a6c58d12fe 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -444,9 +444,6 @@ extern spinlock_t cx18_cards_lock; /* Return non-zero if a signal is pending */ int cx18_msleep_timeout(unsigned int msecs, int intr); -/* Wait on queue, returns -EINTR if interrupted */ -int cx18_waitq(wait_queue_head_t *waitq); - /* Read Hauppauge eeprom */ struct tveeprom; /* forward reference */ void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv); diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index 69303065a294..91eff6e671a7 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -39,7 +39,7 @@ associated VBI streams are also automatically claimed. Possible error returns: -EBUSY if someone else has claimed the stream or 0 on success. */ -int cx18_claim_stream(struct cx18_open_id *id, int type) +static int cx18_claim_stream(struct cx18_open_id *id, int type) { struct cx18 *cx = id->cx; struct cx18_stream *s = &cx->streams[type]; @@ -87,7 +87,7 @@ int cx18_claim_stream(struct cx18_open_id *id, int type) /* This function releases a previously claimed stream. It will take into account associated VBI streams. */ -void cx18_release_stream(struct cx18_stream *s) +static void cx18_release_stream(struct cx18_stream *s) { struct cx18 *cx = s->cx; struct cx18_stream *s_vbi; diff --git a/drivers/media/video/cx18/cx18-fileops.h b/drivers/media/video/cx18/cx18-fileops.h index 16cdafbd24c5..46da0282fc7d 100644 --- a/drivers/media/video/cx18/cx18-fileops.h +++ b/drivers/media/video/cx18/cx18-fileops.h @@ -34,12 +34,3 @@ void cx18_stop_capture(struct cx18_open_id *id, int gop_end); void cx18_mute(struct cx18 *cx); void cx18_unmute(struct cx18 *cx); -/* Utilities */ - -/* Try to claim a stream for the filehandle. Return 0 on success, - -EBUSY if stream already claimed. Once a stream is claimed, it - remains claimed until the associated filehandle is closed. */ -int cx18_claim_stream(struct cx18_open_id *id, int type); - -/* Release a previously claimed stream. */ -void cx18_release_stream(struct cx18_stream *s); diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index 18c88d1e4833..4f08a4058d1a 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -25,6 +25,7 @@ #include "cx18-cards.h" #include "cx18-gpio.h" #include "cx18-av-core.h" +#include "cx18-i2c.h" #include diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c index 4ef6996b2048..6990b77c6200 100644 --- a/drivers/media/video/cx18/cx18-queue.c +++ b/drivers/media/video/cx18/cx18-queue.c @@ -26,17 +26,6 @@ #include "cx18-queue.h" #include "cx18-scb.h" -int cx18_buf_copy_from_user(struct cx18_stream *s, struct cx18_buffer *buf, - const char __user *src, int copybytes) -{ - if (s->buf_size - buf->bytesused < copybytes) - copybytes = s->buf_size - buf->bytesused; - if (copy_from_user(buf->buf + buf->bytesused, src, copybytes)) - return -EFAULT; - buf->bytesused += copybytes; - return copybytes; -} - void cx18_buf_swap(struct cx18_buffer *buf) { int i; @@ -159,8 +148,9 @@ static void cx18_queue_move_buf(struct cx18_stream *s, struct cx18_queue *from, -ENOMEM is returned if the buffers could not be obtained, 0 if all buffers where obtained from the 'from' list and if non-zero then the number of stolen buffers is returned. */ -int cx18_queue_move(struct cx18_stream *s, struct cx18_queue *from, - struct cx18_queue *steal, struct cx18_queue *to, int needed_bytes) +static int cx18_queue_move(struct cx18_stream *s, struct cx18_queue *from, + struct cx18_queue *steal, struct cx18_queue *to, + int needed_bytes) { unsigned long flags; int rc = 0; diff --git a/drivers/media/video/cx18/cx18-queue.h b/drivers/media/video/cx18/cx18-queue.h index f86c8a6fa6e7..91423b9863a4 100644 --- a/drivers/media/video/cx18/cx18-queue.h +++ b/drivers/media/video/cx18/cx18-queue.h @@ -39,8 +39,6 @@ static inline void cx18_buf_sync_for_device(struct cx18_stream *s, s->buf_size, s->dma); } -int cx18_buf_copy_from_user(struct cx18_stream *s, struct cx18_buffer *buf, - const char __user *src, int copybytes); void cx18_buf_swap(struct cx18_buffer *buf); /* cx18_queue utility functions */ @@ -48,8 +46,6 @@ void cx18_queue_init(struct cx18_queue *q); void cx18_enqueue(struct cx18_stream *s, struct cx18_buffer *buf, struct cx18_queue *q); struct cx18_buffer *cx18_dequeue(struct cx18_stream *s, struct cx18_queue *q); -int cx18_queue_move(struct cx18_stream *s, struct cx18_queue *from, - struct cx18_queue *steal, struct cx18_queue *to, int needed_bytes); struct cx18_buffer *cx18_queue_find_buf(struct cx18_stream *s, u32 id, u32 bytesused); void cx18_flush_queues(struct cx18_stream *s); -- 2.11.0