linux-kernel - Re: [PATCH 2/2] kvm: mmu: page

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Date:   Fri, 17 Jul 2020 17:12:59 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     madhuparnabhowmik10@...il.com,
        Dexuan-Linux Cui <dexuan.linux@...il.com>,
        Josh Triplett <josh@...htriplett.org>,
        Joel Fernandes <joel@...lfernandes.org>,
        Paolo Bonzini <pbonzini@...hat.com>, rcu@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>,
        X86 ML <x86@...nel.org>, kvm list <kvm@...r.kernel.org>,
        frextrite@...il.com, lkft-triage@...ts.linaro.org,
        Dexuan Cui <decui@...rosoft.com>, juhlee@...rosoft.com,
        Daniel Díaz <daniel.diaz@...aro.org>
Subject: Re: [PATCH 2/2] kvm: mmu: page_track: Fix RCU list API usage

On Sat, Jul 18, 2020 at 12:35:12AM +0530, Naresh Kamboju wrote:
> Hi Paul,
> 
> > I am not seeing this here.
> 
> Do you notice any warnings while building linux next master
> for x86_64 architecture ?

Idiot here was failing to enable building of KVM.  With that, I do see
the error.  The patch resolves it for me.  Does it help for you?

							Thanx, Paul

------------------------------------------------------------------------

diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index de9385b..f8633d3 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -73,7 +73,7 @@ static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
 #define __list_check_rcu(dummy, cond, extra...)				\
 	({ check_arg_count_one(extra); })
 
-#define __list_check_srcu(cond) true
+#define __list_check_srcu(cond) ({ })
 #endif
 
 /*