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From: Nathan Chancellor <natechancellor@gmail.com>
To: "Paul E. McKenney" <paulmck@kernel.org>
Cc: rcu@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Clang warning in kernel/rcu/tasks.h
Date: Tue, 10 Mar 2020 13:49:41 -0700	[thread overview]
Message-ID: <20200310204941.GA53917@ubuntu-m2-xlarge-x86> (raw)

Hi Paul,

It appears that the commits 37564025a3d7 ("rcu-tasks: Refactor RCU-tasks
to allow variants to be added") and cbd703932774 ("rcu-tasks: Add an
RCU-tasks rude variant") both add a forward declaration to rcu_tasks and
the rcu_tasks_gp_func_t typedef, resulting in the following clang
warning:

In file included from kernel/rcu/update.c:563:
kernel/rcu/tasks.h:24:16: warning: redefinition of typedef 'rcu_tasks_gp_func_t' is a C11 feature [-Wtypedef-redefinition]
typedef void (*rcu_tasks_gp_func_t)(struct rcu_tasks *rtp);
               ^
kernel/rcu/tasks.h:17:16: note: previous definition is here
typedef void (*rcu_tasks_gp_func_t)(struct rcu_tasks *rtp);
               ^
1 warning generated.

Maybe a rebase or merge gone wrong? Would you mind taking a look and
fixing it up if possible?

Cheers,
Nathan

             reply	other threads:[~2020-03-10 20:49 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-10 20:49 Nathan Chancellor [this message]
2020-03-10 21:56 ` Clang warning in kernel/rcu/tasks.h Paul E. McKenney

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