Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20211005094728.203ecef2@gandalf.local.home> <CAHk-=wj0AJAv9o2sW7ReCFRaD+TatSiLMYjK=FzG9-X=q5ZWwA@mail.gmail.com>
 <20211005123729.6adf304b@gandalf.local.home>
In-Reply-To: <20211005123729.6adf304b@gandalf.local.home>
From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Tue, 5 Oct 2021 09:47:10 -0700
Message-ID: <CAHk-=wg8duLUhR4duN2fNWRF73oGufZNMyvyF5Twp9FnqXmq+g@mail.gmail.com>
Subject: Re: [RFC][PATCH] rcu: Use typeof(p) instead of typeof(*p) *
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Josh Triplett <josh@joshtriplett.org>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Lai Jiangshan <jiangshanlai@gmail.com>,
        Joel Fernandes <joel@joelfernandes.org>,
        Pablo Neira Ayuso <pablo@netfilter.org>,
        Jozsef Kadlecsik <kadlec@netfilter.org>,
        Florian Westphal <fw@strlen.de>,
        David Miller <davem@davemloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
        David Ahern <dsahern@kernel.org>,
        Jakub Kicinski <kuba@kernel.org>, rcu <rcu@vger.kernel.org>,
        NetFilter <netfilter-devel@vger.kernel.org>,
        coreteam@netfilter.org, Netdev <netdev@vger.kernel.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Tue, Oct 5, 2021 at 9:37 AM Steven Rostedt <rostedt@goodmis.org> wrote:
>
> Oh well, it was a fun exercise. Too bad we failed due to inconsistencies in
> compilers :-(

I'm admittedly surprised that something like this would be a
"different compiler versions" issue. But "typeof()" isn't exactly
standard C, so the fact that some version of gcc did something
slightly different is annoying but I guess not _that_ surprising.

Oh well indeed,

           Linus