[openib-general] Compile issue with 2.6.12 + realtime preemt patch

[Steve Wooding]

That's great Roland.

Thanks a lot.

Cheers,

Steve.

Roland Dreier wrote:

>    Steve> Hi, I would like to use the OpenIb drivers with a 2.6.12
>    Steve> kernel with the realtime-preemt patch maintained by Ingo
>    Steve> Molnar. I get the following error in sdp_conn.c using svn
>    Steve> 2909:
>
>    Steve> line 49: error: SPIN_LOCK_UNLOCKED undeclared in this
>    Steve> function
>
>    Steve> Has anybody out there got this working or could give me
>    Steve> clue how to fix it?
>
>Change
>
>    static spinlock_t psn_lock = SPIN_LOCK_UNLOCKED;
>
>to
>
>    static DEFINE_SPINLOCK(psn_lock);
>
>Libor, we might as well make this change:
>
>
>Initialize spinlock with DEFINE_SPINLOCK() instead of
>SPIN_LOCK_UNLOCKED to be friendly to CONFIG_PREEMPT_RT patches.
>
>Signed-off-by: Roland Dreier <rolandd at cisco.com>
>
>--- infiniband/ulp/sdp/sdp_conn.c	(revision 2904)
>+++ infiniband/ulp/sdp/sdp_conn.c	(working copy)
>@@ -46,7 +46,7 @@ static struct ib_client sdp_client = {
> 	.remove = sdp_device_remove_one
> };
> 
>-static spinlock_t psn_lock = SPIN_LOCK_UNLOCKED;
>+static DEFINE_SPINLOCK(psn_lock);
> static u32        psn_seed;
> 
> /*
>
>  
>