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authorMichael Buesch <mb@bu3sch.de>2009-06-17 16:27:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 13:03:54 -0700
commit81fc401e426e8a4c719035ef86d051bd0d1111e5 (patch)
tree65c8397edef37f85b5ec79953d1da26dfa339bd0
parent9653a69e923522050e15dab042b163dcc2ed7111 (diff)
ppdev: reduce kernel log spam
One of my programs frequently grabs the parport, does something with it and then drops it again. This results in spamming of the kernel log with "... registered pardevice" "... unregistered pardevice" These messages are completely useless, except for debugging ppdev, probably. So put them under DEBUG (or dynamic debug). Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/char/ppdev.c29
1 files changed, 11 insertions, 18 deletions
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index c84c34fb123..432655bcb04 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -114,8 +114,7 @@ static ssize_t pp_read (struct file * file, char __user * buf, size_t count,
if (!(pp->flags & PP_CLAIMED)) {
/* Don't have the port claimed */
- printk (KERN_DEBUG CHRDEV "%x: claim the port first\n",
- minor);
+ pr_debug(CHRDEV "%x: claim the port first\n", minor);
return -EINVAL;
}
@@ -198,8 +197,7 @@ static ssize_t pp_write (struct file * file, const char __user * buf,
if (!(pp->flags & PP_CLAIMED)) {
/* Don't have the port claimed */
- printk (KERN_DEBUG CHRDEV "%x: claim the port first\n",
- minor);
+ pr_debug(CHRDEV "%x: claim the port first\n", minor);
return -EINVAL;
}
@@ -313,7 +311,7 @@ static int register_device (int minor, struct pp_struct *pp)
}
pp->pdev = pdev;
- printk (KERN_DEBUG "%s: registered pardevice\n", name);
+ pr_debug("%s: registered pardevice\n", name);
return 0;
}
@@ -343,8 +341,7 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
int ret;
if (pp->flags & PP_CLAIMED) {
- printk (KERN_DEBUG CHRDEV
- "%x: you've already got it!\n", minor);
+ pr_debug(CHRDEV "%x: you've already got it!\n", minor);
return -EINVAL;
}
@@ -379,7 +376,7 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
case PPEXCL:
if (pp->pdev) {
- printk (KERN_DEBUG CHRDEV "%x: too late for PPEXCL; "
+ pr_debug(CHRDEV "%x: too late for PPEXCL; "
"already registered\n", minor);
if (pp->flags & PP_EXCL)
/* But it's not really an error. */
@@ -491,8 +488,7 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
/* Everything else requires the port to be claimed, so check
* that now. */
if ((pp->flags & PP_CLAIMED) == 0) {
- printk (KERN_DEBUG CHRDEV "%x: claim the port first\n",
- minor);
+ pr_debug(CHRDEV "%x: claim the port first\n", minor);
return -EINVAL;
}
@@ -624,8 +620,7 @@ static int pp_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return 0;
default:
- printk (KERN_DEBUG CHRDEV "%x: What? (cmd=0x%x)\n", minor,
- cmd);
+ pr_debug(CHRDEV "%x: What? (cmd=0x%x)\n", minor, cmd);
return -EINVAL;
}
@@ -698,9 +693,8 @@ static int pp_release (struct inode * inode, struct file * file)
}
if (compat_negot) {
parport_negotiate (pp->pdev->port, IEEE1284_MODE_COMPAT);
- printk (KERN_DEBUG CHRDEV
- "%x: negotiated back to compatibility mode because "
- "user-space forgot\n", minor);
+ pr_debug(CHRDEV "%x: negotiated back to compatibility "
+ "mode because user-space forgot\n", minor);
}
if (pp->flags & PP_CLAIMED) {
@@ -713,7 +707,7 @@ static int pp_release (struct inode * inode, struct file * file)
info->phase = pp->saved_state.phase;
parport_release (pp->pdev);
if (compat_negot != 1) {
- printk (KERN_DEBUG CHRDEV "%x: released pardevice "
+ pr_debug(CHRDEV "%x: released pardevice "
"because user-space forgot\n", minor);
}
}
@@ -723,8 +717,7 @@ static int pp_release (struct inode * inode, struct file * file)
parport_unregister_device (pp->pdev);
kfree (name);
pp->pdev = NULL;
- printk (KERN_DEBUG CHRDEV "%x: unregistered pardevice\n",
- minor);
+ pr_debug(CHRDEV "%x: unregistered pardevice\n", minor);
}
kfree (pp);