leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tools/include: Add _RET_IP_ and math definitions to kernel.h

Browse Source 
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
This commit is contained in:
Karolina Drobnik 2022-02-02 12:03:02 +01:00 committed by Mike Rapoport
parent 884ee1e585
commit 5cf67a6051
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/include/linux/kernel.h
View File

@ -15,6 +15,8 @@
#define UINT_MAX (~0U)
#endif
#define _RET_IP_ ((unsigned long)__builtin_return_address(0))
#define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
#define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
@ -51,6 +53,10 @@
_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 BUG_ON
#ifdef NDEBUG
#define BUG_ON(cond) do { if (cond) {} } while (0)