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authorTejun Heo <tj@kernel.org>2009-10-29 16:34:12 +0300
committerTejun Heo <tj@kernel.org>2009-10-29 16:34:12 +0300
commit0f5e4816dbf38ce9488e611ca2296925c1e90d5e (patch)
tree9c13079d21cb0c316db7e254222bca357ad7b41b /include/linux/percpu-defs.h
parent64ef291f46d795917f32a0f5975e2b76f6fe206a (diff)
downloadlinux-0f5e4816dbf38ce9488e611ca2296925c1e90d5e.tar.xz
percpu: remove some sparse warnings
Make the following changes to remove some sparse warnings. * Make DEFINE_PER_CPU_SECTION() declare __pcpu_unique_* before defining it. * Annotate pcpu_extend_area_map() that it is entered with pcpu_lock held, releases it and then reacquires it. * Make percpu related macros use unique nested variable names. * While at it, add pcpu prefix to __size_call[_return]() macros as to-be-implemented sparse annotations will add percpu specific stuff to these macros. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/percpu-defs.h')
-rw-r--r--include/linux/percpu-defs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 9bd03193ecd4..5a5d6ce4bd55 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -60,6 +60,7 @@
#define DEFINE_PER_CPU_SECTION(type, name, sec) \
__PCPU_DUMMY_ATTRS char __pcpu_scope_##name; \
+ extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
__PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
__PCPU_ATTRS(sec) PER_CPU_DEF_ATTRIBUTES __weak \
__typeof__(type) per_cpu__##name