The branch stable/15 has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=31d52cc42116127d7e96826a24881d20d75c512c
commit 31d52cc42116127d7e96826a24881d20d75c512c Author: John Baldwin <[email protected]> AuthorDate: 2026-02-24 20:28:28 +0000 Commit: John Baldwin <[email protected]> CommitDate: 2026-06-23 16:00:55 +0000 bus: Add a new IVAR accessor to check for the existence of an IVAR <varp>_has_<var> returns true if the given IVAR can be read. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D55352 (cherry picked from commit cb5a0eb05310d06e9853a01a542be55b9adee038) --- sys/sys/bus.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/sys/sys/bus.h b/sys/sys/bus.h index 801fd0a1fe51..f1b4e0a7c55c 100644 --- a/sys/sys/bus.h +++ b/sys/sys/bus.h @@ -946,6 +946,17 @@ DECLARE_MODULE(_name##_##busname, _name##_##busname##_mod, \ */ #define __BUS_ACCESSOR(varp, var, ivarp, ivar, type) \ \ +static __inline bool \ +varp ## _has_ ## var(device_t dev) \ +{ \ + uintptr_t v = 0; \ + int e; \ + \ + e = BUS_READ_IVAR(device_get_parent(dev), dev, \ + ivarp ## _IVAR_ ## ivar, &v); \ + return (e == 0); \ +} \ + \ static __inline type \ varp ## _get_ ## var(device_t dev) \ { \
