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| author | Tejun Heo <tj@kernel.org> | 2009-10-29 22:34:15 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-10-29 22:34:15 +0900 |
| commit | 545695fb41da117928ab946067a42d9e15fd009d (patch) | |
| tree | 1ea32c45a6f6efb03a88f99278f065054a5de3e2 /include/linux/percpu.h | |
| parent | e0fdb0e050eae331046385643618f12452aa7e73 (diff) | |
| download | op-kernel-dev-545695fb41da117928ab946067a42d9e15fd009d.zip op-kernel-dev-545695fb41da117928ab946067a42d9e15fd009d.tar.gz | |
percpu: make accessors check for percpu pointer in sparse
The previous patch made sparse warn about percpu variables being used
directly without going through percpu accessors. This patch
implements the other half - checking whether non percpu variable is
passed into percpu accessors.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 2c0d31a..42878f0 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -237,6 +237,7 @@ extern void __bad_size_call_parameter(void); #define __pcpu_size_call_return(stem, variable) \ ({ typeof(variable) pscr_ret__; \ + __verify_pcpu_ptr(&(variable)); \ switch(sizeof(variable)) { \ case 1: pscr_ret__ = stem##1(variable);break; \ case 2: pscr_ret__ = stem##2(variable);break; \ @@ -250,6 +251,7 @@ extern void __bad_size_call_parameter(void); #define __pcpu_size_call(stem, variable, ...) \ do { \ + __verify_pcpu_ptr(&(variable)); \ switch(sizeof(variable)) { \ case 1: stem##1(variable, __VA_ARGS__);break; \ case 2: stem##2(variable, __VA_ARGS__);break; \ |
