Opps ! Thanks for review comment. Just sent V2 updated patch. Sanjeev Sharma
-----Original Message----- From: Ryan Mallon [mailto:[email protected]] Sent: Wednesday, August 20, 2014 4:34 AM To: Sharma, Sanjeev; [email protected]; [email protected] Cc: [email protected] Subject: Re: [PATCH] sgi-xp: Do not use BUG_ON(!spin_is_locked()) On 12/08/14 17:35, Sanjeev Sharma wrote: > on some architecture spin_is_locked() always return false in > uniprocessor configuration and can therefore not be used with > BUG_ON.it would be advise to replace with lockdep_assert_held(). > > Signed-off-by: Sanjeev Sharma <[email protected]> > --- > drivers/misc/sgi-xp/xpc_channel.c | 6 +++--- > drivers/misc/sgi-xp/xpc_sn2.c | 2 +- > drivers/misc/sgi-xp/xpc_uv.c | 2 +- > 3 files changed, 5 insertions(+), 5 deletions(-) > > diff --git a/drivers/misc/sgi-xp/xpc_channel.c > b/drivers/misc/sgi-xp/xpc_channel.c > index 128d561..240fe5a 100644 > --- a/drivers/misc/sgi-xp/xpc_channel.c > +++ b/drivers/misc/sgi-xp/xpc_channel.c > @@ -28,7 +28,7 @@ xpc_process_connect(struct xpc_channel *ch, unsigned > long *irq_flags) { > enum xp_retval ret; > > - DBUG_ON(!spin_is_locked(&ch->lock)); > + lockdep_assert_held(!spin_is_locked(&ch->lock)); This is incorrect, and will break the build with CONFIG_LOCKDEP enabled. You actually want: lockdep_assert_held(&ch->lock); Same for the other instances. ~Ryan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
