linux-kernel - Re: [PATCH] locking/refcount: add sparse annotations to dec-and-lock functions

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Date:   Fri, 3 Jan 2020 15:55:21 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     Kees Cook <keescook@...omium.org>,
        Eric Biggers <ebiggers@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Will Deacon <will@...nel.org>,
        Elena Reshetova <elena.reshetova@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Anna-Maria Gleixner <anna-maria@...utronix.de>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        linux-sparse@...r.kernel.org
Subject: Re: [PATCH] locking/refcount: add sparse annotations to dec-and-lock
 functions

I re-wrote Smatch's locking check last month to use the cross function
DB.  Now Smatch can parse refcount_dec_and_lock() directly without any
modifications or annotations.

regards,
dan carpenter