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SubjectRe: [PATCH 3/8] percpu: add __percpu sparse annotations to net
From: Tejun Heo <>
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 <>

Acked-by: David S. Miller <>

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