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Message-Id: <20080424.142940.45152084.xiyou.wangcong@gmail.com>
Date: Thu, 24 Apr 2008 14:29:40 +0800 (CST)
From: WANG Cong <xiyou.wangcong@...il.com>
To: linux-kernel@...r.kernel.org
Cc: akpm@...l.org, jdike@...toit.com,
user-mode-linux-devel@...ts.sourceforge.net
Subject: [Patch] arch/um/kernel/irq.c: clean up some functions
Make activate_fd() and free_irq_by_irq_and_dev() static.
Remove init_aio_irq() since it has no users.
Compile testing passed.
Cc: Jeff Dike <jdike@...toit.com>
Signed-off-by: WANG Cong <wangcong@...ux.org>
---
arch/um/include/irq_kern.h | 2 --
arch/um/include/irq_user.h | 2 --
arch/um/kernel/irq.c | 35 ++---------------------------------
3 files changed, 2 insertions(+), 37 deletions(-)
diff --git a/arch/um/include/irq_kern.h b/arch/um/include/irq_kern.h
index 4f77559..fba3895 100644
--- a/arch/um/include/irq_kern.h
+++ b/arch/um/include/irq_kern.h
@@ -13,8 +13,6 @@ extern int um_request_irq(unsigned int irq, int fd, int type,
irq_handler_t handler,
unsigned long irqflags, const char * devname,
void *dev_id);
-extern int init_aio_irq(int irq, char *name,
- irq_handler_t handler);
#endif
diff --git a/arch/um/include/irq_user.h b/arch/um/include/irq_user.h
index e60b318..c6c784d 100644
--- a/arch/um/include/irq_user.h
+++ b/arch/um/include/irq_user.h
@@ -21,8 +21,6 @@ struct irq_fd {
enum { IRQ_READ, IRQ_WRITE };
extern void sigio_handler(int sig, struct uml_pt_regs *regs);
-extern int activate_fd(int irq, int fd, int type, void *dev_id);
-extern void free_irq_by_irq_and_dev(unsigned int irq, void *dev_id);
extern void free_irq_by_fd(int fd);
extern void reactivate_fd(int fd, int irqnum);
extern void deactivate_fd(int fd, int irqnum);
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index 91587f8..3d7aad0 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -102,7 +102,7 @@ void sigio_handler(int sig, struct uml_pt_regs *regs)
static DEFINE_SPINLOCK(irq_lock);
-int activate_fd(int irq, int fd, int type, void *dev_id)
+static int activate_fd(int irq, int fd, int type, void *dev_id)
{
struct pollfd *tmp_pfd;
struct irq_fd *new_fd, *irq_fd;
@@ -216,7 +216,7 @@ static int same_irq_and_dev(struct irq_fd *irq, void *d)
return ((irq->irq == data->irq) && (irq->id == data->dev));
}
-void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
+static void free_irq_by_irq_and_dev(unsigned int irq, void *dev)
{
struct irq_and_dev data = ((struct irq_and_dev) { .irq = irq,
.dev = dev });
@@ -403,37 +403,6 @@ void __init init_IRQ(void)
}
}
-int init_aio_irq(int irq, char *name, irq_handler_t handler)
-{
- int fds[2], err;
-
- err = os_pipe(fds, 1, 1);
- if (err) {
- printk(KERN_ERR "init_aio_irq - os_pipe failed, err = %d\n",
- -err);
- goto out;
- }
-
- err = um_request_irq(irq, fds[0], IRQ_READ, handler,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM, name,
- (void *) (long) fds[0]);
- if (err) {
- printk(KERN_ERR "init_aio_irq - : um_request_irq failed, "
- "err = %d\n",
- err);
- goto out_close;
- }
-
- err = fds[1];
- goto out;
-
- out_close:
- os_close_file(fds[0]);
- os_close_file(fds[1]);
- out:
- return err;
-}
-
/*
* IRQ stack entry and exit:
*
--
1.5.2.4
--
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