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Date: Mon, 5 May 2008 21:25:22 +0300
From: Adrian Bunk <bunk@...nel.org>
To: mchehab@...radead.org
Cc: v4l-dvb-maintainer@...uxtv.org, linux-kernel@...r.kernel.org
Subject: [2.6 patch] media/video/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 <bunk@...nel.org>
---
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(-)
fb75860982d54ff1b4eb4744b75a58d0cc6556d2 diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 8f5ed9b..e10df69 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 2ee9391..a2a6c58 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 6930306..91eff6e 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 16cdafb..46da028 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 18c88d1..4f08a40 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 <media/ir-kbd-i2c.h>
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 65af1bb..73f9550 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 f86c8a6..91423b9 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);
--
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