4 commits

Author	SHA1	Message	Date
Vladimir Kondratyev	307f78f3ed	LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards ... MFC after: 1 week Reviewed by: bz, emaste, hselasky, manu Differential Revision: https://reviews.freebsd.org/D33562	2022-01-10 22:49:38 +03:00
John Baldwin	9553c6af88	<linux/overflow.h>: Don't use __has_builtin(). ... GCC only added support for __has_builtin in GCC 10. However, all supported versions of GCC and clang include these builtins so just use them unconditionally. This fixes the build with GCC 9. Reviewed by: manu, hselasky, imp Differential Revision: https://reviews.freebsd.org/D31942	2021-09-15 09:03:17 -07:00
Hans Petter Selasky	d2890eeea1	Implement the array_size() function in the LinuxKPI. This function ... basically multiplies its two arguments and returns SIZE_MAX if the result overflows the size_t type. Else the product of the two arguments is returned. Bump the FreeBSD_version to mitigate issues with existing implementation of array_size() in drm-devel-kmod. Discussed with: manu@ MFC after: 1 week Sponsored by: Mellanox Technologies	2020-07-10 11:27:54 +00:00
Emmanuel Vadot	8287045dde	linuxkpi: Add overflow.h ... Only add check_add_overflow and check_mul_overflow as those are the only two needed function by DRM v5.3. Both gcc and clang have builtin to do this check so use them directly but throw an error if the compiler/code checker doesn't support this builtin. Sponsored-by: The FreeBSD Foundation Reviewed by: hselsasky Differential Revision: https://reviews.freebsd.org/D25015	2020-05-27 09:31:50 +00:00