From: Jens Axboe <[EMAIL PROTECTED]>
Subject: Re: [PATCH] bsg: minor bug fixes
Date: Fri, 30 Mar 2007 08:38:04 +0200
> On Fri, Mar 30 2007, FUJITA Tomonori wrote:
> > This fixes the following minor issues:
> >
> > - When bsg_register_queue is called with a request queue that doesn't
> > have request_fn, it returns -EINVAL instead of zero.
>
> Seems a little backwards, you wont be able to talk to the device then.
What do you mean? All the devices that we might bind to bsg has
request_fn?
> So, what is the purpose of this patch?
When I wrote a SMP pass through interface via bsg, I thought that it
would be better to return an error instead of success when we call
bsg_register_queue with a request queue that doesn't have a
request_fn.
Anyway, it doesn't matter much. Here is a new version.
---
>From db616d88a5e180a6be4928ba66947e501da581fa Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori <[EMAIL PROTECTED]>
Date: Fri, 30 Mar 2007 17:24:35 +0900
Subject: [PATCH] bsg: minor bug fixes
This fixes the following minor issues:
- add EXPORT_SYMBOL_GPL for bsg_register_queue and
bsg_unregister_queue.
- shut up gcc warnings
Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
---
block/bsg.c | 4 +++-
include/linux/bsg.h | 2 +-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/block/bsg.c b/block/bsg.c
index 4ef3cc5..a333c93 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -961,8 +961,9 @@ void bsg_unregister_queue(struct request
bsg_device_nr--;
mutex_unlock(&bsg_mutex);
}
+EXPORT_SYMBOL_GPL(bsg_unregister_queue);
-int bsg_register_queue(struct request_queue *q, char *name)
+int bsg_register_queue(struct request_queue *q, const char *name)
{
struct bsg_class_device *bcd, *__bcd;
dev_t dev;
@@ -1025,6 +1026,7 @@ err:
mutex_unlock(&bsg_mutex);
return ret;
}
+EXPORT_SYMBOL_GPL(bsg_register_queue);
static int bsg_add(struct class_device *cl_dev, struct class_interface
*cl_intf)
{
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index 0475a6d..0dd01f9 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -51,7 +51,7 @@ struct bsg_class_device {
struct request_queue *queue;
};
-extern int bsg_register_queue(struct request_queue *, char *);
+extern int bsg_register_queue(struct request_queue *, const char *);
extern void bsg_unregister_queue(struct request_queue *);
#else
struct bsg_class_device { };
--
1.4.3.2
-
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