Commit 96d4e231d25e3d7d8b7a2a9267043eac5d4560a8
Exists in
smarc-imx_3.14.28_1.0.0_ga
and in
1 other branch
Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull single percpu update from Tejun Heo: "Just a single patch to update type verification macro for percpu accessors. Christoph is trying to replace __get_cpu_var() with this_cpu accessors which needs this update. There are still some issues to be resolved but eventually the conversion patches are likely to be routed through different trees, so I think it'd be convenient to merge this commit early" * 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: Make __verify_pcu_ptr handle per cpu pointers to arrays
Showing 1 changed file Side-by-side Diff
include/linux/percpu-defs.h
| ... | ... | @@ -22,9 +22,12 @@ |
| 22 | 22 | * Macro which verifies @ptr is a percpu pointer without evaluating |
| 23 | 23 | * @ptr. This is to be used in percpu accessors to verify that the |
| 24 | 24 | * input parameter is a percpu pointer. |
| 25 | + * | |
| 26 | + * + 0 is required in order to convert the pointer type from a | |
| 27 | + * potential array type to a pointer to a single item of the array. | |
| 25 | 28 | */ |
| 26 | 29 | #define __verify_pcpu_ptr(ptr) do { \ |
| 27 | - const void __percpu *__vpp_verify = (typeof(ptr))NULL; \ | |
| 30 | + const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ | |
| 28 | 31 | (void)__vpp_verify; \ |
| 29 | 32 | } while (0) |
| 30 | 33 |