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authorRusty Russell <rusty@rustcorp.com.au>2009-10-29 22:34:15 +0900
committerTejun Heo <tj@kernel.org>2009-10-29 22:34:15 +0900
commite0fdb0e050eae331046385643618f12452aa7e73 (patch)
tree6156f577879764fd75cf8c46ca7980433de0e59d /include/asm-generic/percpu.h
parentf7b64fe806029e0a0454df132eec3c5ab576102c (diff)
percpu: add __percpu for sparse.
We have to make __kernel "__attribute__((address_space(0)))" so we can cast to it. tj: * put_cpu_var() update. * Annotations added to dynamic allocator interface. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/asm-generic/percpu.h')
-rw-r--r--include/asm-generic/percpu.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index ca6f0491412b..fded453fd25c 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -41,7 +41,9 @@ extern unsigned long __per_cpu_offset[NR_CPUS];
* Only S390 provides its own means of moving the pointer.
*/
#ifndef SHIFT_PERCPU_PTR
-#define SHIFT_PERCPU_PTR(__p, __offset) RELOC_HIDE((__p), (__offset))
+/* Weird cast keeps both GCC and sparse happy. */
+#define SHIFT_PERCPU_PTR(__p, __offset) \
+ RELOC_HIDE((typeof(*(__p)) __kernel __force *)(__p), (__offset))
#endif
/*