genetlink: Remove smp_read_barrier_depends() from comment
Now that smp_read_barrier_depends() has been de-emphasized, the less said about it, the better. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -31,8 +31,7 @@ extern wait_queue_head_t genl_sk_destructing_waitq;
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* @p: The pointer to read, prior to dereferencing
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*
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* Return the value of the specified RCU-protected pointer, but omit
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* both the smp_read_barrier_depends() and the READ_ONCE(), because
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* caller holds genl mutex.
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* the READ_ONCE(), because caller holds genl mutex.
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*/
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#define genl_dereference(p) \
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rcu_dereference_protected(p, lockdep_genl_is_held())
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