Re: [PATCH 3/8] percpu: add __percpu sparse annotations to net

David Miller
2010-01-25T21:32:40Z

From: Tejun Heo <tj@kernel.org>
Date: Tue, 26 Jan 2010 00:22:10 +0900

> Add __percpu sparse annotations to net.
>
> These annotations are to make sparse consider percpu variables to be
> in a different address space and warn if accessed without going
> through percpu accessors. This patch doesn't affect normal builds.
>
> The macro and type tricks around snmp stats make things a bit
> interesting. DEFINE/DECLARE_SNMP_STAT() macros mark the target field
> as __percpu and SNMP_UPD_PO_STATS() macro is updated accordingly. All
> snmp_mib_*() users which used to cast the argument to (void **) are
> updated to cast it to (void __percpu **).
>
> Signed-off-by: Tejun Heo <tj@kernel.org>

Acked-by: David S. Miller <davem@davemloft.net>