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ps3av: misc updates

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ps3av:
  - Move the definition of struct ps3av to ps3av.c, as it's locally used only.
  - Kill ps3av.sem, use the existing ps3av.mutex instead.
  - Make the 512-byte buffer in ps3av_do_pkt() static to reduce stack usage.
    Its use is protected by a semaphore anyway.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Geert Uytterhoeven
2007-05-02 14:48:35 +02:00
committed by Linus Torvalds
parent bd685ac8e7
commit fffe52e86b
2 changed files with 23 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/ps3/ps3av.c
+22 -7
View File
@@ -38,7 +38,24 @@
static int timeout = 5000; /* in msec ( 5 sec ) */
module_param(timeout, int, 0644);
static struct ps3av ps3av;
static struct ps3av {
int available;
struct mutex mutex;
struct work_struct work;
struct completion done;
struct workqueue_struct *wq;
int open_count;
struct ps3_vuart_port_device *dev;
int region;
struct ps3av_pkt_av_get_hw_conf av_hw_conf;
u32 av_port[PS3AV_AV_PORT_MAX + PS3AV_OPT_PORT_MAX];
u32 opt_port[PS3AV_OPT_PORT_MAX];
u32 head[PS3AV_HEAD_MAX];
u32 audio_port;
int ps3av_mode;
int ps3av_mode_old;
} ps3av;
static struct ps3_vuart_port_device ps3av_dev = {
.match_id = PS3_MATCH_ID_AV_SETTINGS
@@ -250,7 +267,7 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
struct ps3av_send_hdr *buf)
{
int res = 0;
union {
static union {
struct ps3av_reply_hdr reply_hdr;
u8 raw[PS3AV_BUF_SIZE];
} recv_buf;
@@ -259,8 +276,7 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
BUG_ON(!ps3av.available);
if (down_interruptible(&ps3av.sem))
return -ERESTARTSYS;
mutex_lock(&ps3av.mutex);
table = ps3av_search_cmd_table(cid, PS3AV_CID_MASK);
BUG_ON(!table);
@@ -290,11 +306,11 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
goto err;
}
up(&ps3av.sem);
mutex_unlock(&ps3av.mutex);
return 0;
err:
up(&ps3av.sem);
mutex_unlock(&ps3av.mutex);
printk(KERN_ERR "%s: failed cid:%x res:%d\n", __FUNCTION__, cid, res);
return res;
}
@@ -872,7 +888,6 @@ static int ps3av_probe(struct ps3_vuart_port_device *dev)
memset(&ps3av, 0, sizeof(ps3av));
init_MUTEX(&ps3av.sem);
mutex_init(&ps3av.mutex);
ps3av.ps3av_mode = 0;
ps3av.dev = dev;