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linuxkpi: Add macros for might_lock_nested() and lockdep_(re/un/)pin_lock()

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In Linux, these are macros to locks in the kernel for scheduling purposes.
But as with other macros in this header, we aren't doing anything with them
so we are doing `do {} while (0)` for now.

This is needed by the drm-kmod 5.7 update.

Approved by:		hselasky (src)
MFC after:		3 days
Differential Revision:	https://reviews.freebsd.org/D30710
This commit is contained in:
Neel Chauhan 2021-06-09 14:38:52 -07:00
parent fee0d486ef
commit 8a1a42b2a7
2 changed files with 6 additions and 1 deletions
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5
sys/compat/linuxkpi/common/include/linux/lockdep.h
View File

@ -79,6 +79,7 @@ lockdep_is_held(void *__m)
#define might_lock(m) do { } while (0)
#define might_lock_read(m) do { } while (0)
#define might_lock_nested(m, n) do { } while (0)
#define lock_acquire(...) do { } while (0)
#define lock_release(...) do { } while (0)
@ -91,4 +92,8 @@ lockdep_is_held(void *__m)
#define lock_map_acquire_read(_map) do { } while (0)
#define lock_map_release(_map) do { } while (0)
#define lockdep_pin_lock(l) do { } while (0)
#define lockdep_repin_lock(l,c) do { } while (0)
#define lockdep_unpin_lock(l,c) do { } while (0)
#endif /* _LINUX_LOCKDEP_H_ */

2
sys/sys/param.h
View File

@ -76,7 +76,7 @@
* cannot include sys/param.h and should only be updated here.
*/
#undef __FreeBSD_version
#define __FreeBSD_version 1400019
#define __FreeBSD_version 1400020
/*
* __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,