Messages in this thread Patch in this message | | | From | Tyler Hicks <> | Subject | [PATCH 5.15 1/2] tools/include: Add _RET_IP_ and math definitions to kernel.h | Date | Thu, 22 Dec 2022 18:09:57 -0600 |
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From: Karolina Drobnik <karolinadrobnik@gmail.com>
commit 5cf67a6051ea2558fd7c3d39c5a808db73073e9d upstream.
Add max_t, min_t and clamp functions, together with _RET_IP_ definition, so they can be used in testing.
Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com> Signed-off-by: Mike Rapoport <rppt@kernel.org> Link: https://lore.kernel.org/r/230fea382cb1e1659cdd52a55201854d38a0a149.1643796665.git.karolinadrobnik@gmail.com [tyhicks: Backport around contextual differences due to the lack of v5.16 commit d6e6a27d960f ("tools: Fix math.h breakage"). That commit fixed a commit that was merged in v5.16-rc1 and, therefore, doesn't need to go back to the stable branches.] Signed-off-by: Tyler Hicks (Microsoft) <code@tyhicks.com> --- tools/include/linux/kernel.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h index a7e54a08fb54..c2e109860fbc 100644 --- a/tools/include/linux/kernel.h +++ b/tools/include/linux/kernel.h @@ -14,6 +14,8 @@ #define UINT_MAX (~0U) #endif +#define _RET_IP_ ((unsigned long)__builtin_return_address(0)) + #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1) @@ -52,6 +54,10 @@ _min1 < _min2 ? _min1 : _min2; }) #endif +#define max_t(type, x, y) max((type)x, (type)y) +#define min_t(type, x, y) min((type)x, (type)y) +#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi) + #ifndef roundup #define roundup(x, y) ( \ { \ -- 2.34.1
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