Messages in this thread | | | Date | Wed, 6 Dec 2006 08:15:37 -0800 | From | "Paul E. McKenney" <> | Subject | Re: sparse errors in srcu.h |
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On Wed, Dec 06, 2006 at 10:50:14AM +0100, Brice Goglin wrote: > Hi, > > When running sparse checks on a file that ends up including srcu.h, we > get the following warnings: > > include/linux/srcu.h:52:44: error: undefined identifier 'sp' > include/linux/srcu.h:52:44: error: bad constant expression > include/linux/srcu.h:53:56: error: undefined identifier 'sp' > include/linux/srcu.h:53:56: error: bad constant expression > > It seems to be caused by the following lines: > > int srcu_read_lock(struct srcu_struct *sp) __acquires(sp); > void srcu_read_unlock(struct srcu_struct *sp, int idx) __releases(sp); > > which come from the following commit. > > commit 621934ee7ed5b073c7fd638b347e632c53572761 > Author: Paul E. McKenney <paulmck@us.ibm.com> > Date: Wed Oct 4 02:17:02 2006 -0700 > > [PATCH] srcu-3: RCU variant permitting read-side blocking > > > I was wondering if there is a way to fix those errors...
I believe that you need to update your version of sparse to 0.1. See http://lwn.net/Articles/208312/ for more info.
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