[PATCH bpf-next v1 16/22] rqspinlock: Add entry to Makefile, MAINTAINERS

[Kumar Kartikeya Dwivedi]

Ensure that rqspinlock is built when qspinlock support and BPF subsystem
is enabled. Also, add the file under the BPF MAINTAINERS entry so that
all patches changing code in the file end up Cc'ing bpf@vger and the
maintainers/reviewers.

Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>
---
 MAINTAINERS                | 3 +++
 include/asm-generic/Kbuild | 1 +
 kernel/locking/Makefile    | 3 +++
 3 files changed, 7 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index baf0eeb9a355..fde7ca94cc1d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4257,6 +4257,9 @@ F:	include/uapi/linux/filter.h
 F:	kernel/bpf/
 F:	kernel/trace/bpf_trace.c
 F:	lib/buildid.c
+F:	arch/*/include/asm/rqspinlock.h
+F:	include/asm-generic/rqspinlock.h
+F:	kernel/locking/rqspinlock.c
 F:	lib/test_bpf.c
 F:	net/bpf/
 F:	net/core/filter.c
diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild
index 1b43c3a77012..8675b7b4ad23 100644
--- a/include/asm-generic/Kbuild
+++ b/include/asm-generic/Kbuild
@@ -45,6 +45,7 @@ mandatory-y += pci.h
 mandatory-y += percpu.h
 mandatory-y += pgalloc.h
 mandatory-y += preempt.h
+mandatory-y += rqspinlock.h
 mandatory-y += runtime-const.h
 mandatory-y += rwonce.h
 mandatory-y += sections.h
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 0db4093d17b8..9b241490ab90 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -24,6 +24,9 @@ obj-$(CONFIG_SMP) += spinlock.o
 obj-$(CONFIG_LOCK_SPIN_ON_OWNER) += osq_lock.o
 obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
 obj-$(CONFIG_QUEUED_SPINLOCKS) += qspinlock.o
+ifeq ($(CONFIG_BPF_SYSCALL),y)
+obj-$(CONFIG_QUEUED_SPINLOCKS) += rqspinlock.o
+endif
 obj-$(CONFIG_RT_MUTEXES) += rtmutex_api.o
 obj-$(CONFIG_PREEMPT_RT) += spinlock_rt.o ww_rt_mutex.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
-- 
2.43.5